Pyramidal Horn Antenna - ETS
Contents
1. 67 Half Power Beamwidth 3160 03 68 Antenna Pattern 3160 03 at 2 15 2 69 3160 04 e ibo e ana 70 VSWR 3160 04 ini ei peine centred ein aa esi ea ee 70 Gain Antenna Factor 3160 04 70 Half Power Beamwidth 3160 04 nos 71 Antenna Pattern 3160 04 at 3 3 GHz 72 Vi 3160 05 SEE 73 VSWR 3160 05 il e ett enden 73 Gain Antenna Factor 3160 0511 73 Half Power Beamwidth 3160 05 74 Antenna Pattern 3160 05 at 4 9 2 3160 06 VSWR 3160 06 Gain Antenna Factor 3160 06 76 Half Power Beamwidth 3160 06 77 Antenna Pattern 3160 06 at 7 0 78 Laien tdt e tdt d on AE La LL 79 VSWR 31060 0f 5 hie crei id 79 Gain Antenna Factor 3160 07 79 Half Power Beamwidth 3160 07 80 Antenna Pattern 3160 07 at 10 3 GHz pt 81 3160 08 han DI ER IA bdo unda 82 VSWR 3160 08 ree tre nr Re ER2. Gain Antenna Factor 3160 08 Half Power Beamwidth 3160 08 83 Antenna Pattern 3160 08 at 15 2 GHz pt 84 310009 REBAR SASS 85 VSWR 3160 09 teen er ass 85 Gain Antenna Factor 3160 09 85 Half Power Beamwidth 3160 09 86 Antenna Pattern 3160 09 at 22 0 GHZ pp 87 3160 10 lt naar en e p E REDDERE S 88 VSWR 3160 10 rl bd 88 Gain Antenna Factor 3160 10 88 Half Power Beamwidth 3160 10 Antenna Pattern 3160 10 at 33 0 GHz Notes Cautions Warnings Note Denotes helpful information intended to gt provide tips for better use of the product Caution Denotes a hazard Failure to follow instructions could result in minor personal injury and or property damage Included text gives proper procedures Warning Denotes a hazard Failure to follow instructions could result in SEVERE personal injury and or property damage Included text gives proper procedures See the ETS Lindgren Product Information Bulletin for safety gt regulatory other product marking information vii This page intentionally left blank viii 1 0 Introduction ETS Lindgren Model 3160 Series Pyr
3. 153 1972 4230 26810 105 153 30 153 9 79 3917 24481 EA 5 160 2 154 528 3413 20706 Et Ga e 140 6 372 155 583 2331 1456 130 502 155 664 2656 16599 TABLE 2 MODEL 3160 01 POWER REQUIREMENTS AT 3 AND 10 METERS Frequency Field Strength 3 meters Field Strength 10 meters GHz 096 2605 10619 uem Tas pue pee Ces e 135 1397 3580 22358 621 2484 15527 iso es xem Tas I 185 1236 4939 19740 348 2193 137 09 50 3160 02 TABLE 3 MODEL 3160 02 POWER REQUIREMENTS 1 METER 112 145 280 167 1191 4762 29763 115 147 294 167 1133 4531 28318 10 150 319 167 1046 4184 26148 125 154 344 168 969 3877 24234 130 157 370 168 901 3606 22537 Gain Gain AF Field Strength 1m GHz dB Num dB l m 100 V m 200 V m 500 V m 135 160 396 168 841 3364 21026 140 163 424 169 787 3148 19674 145 165 451 169 738 2954 184 61 150 168 480 169 695 2779 17368 is ra 509 169 655 _16379_ 160 173 538 170 619 2477 15483 ma 9 ss 228 923 TABLE 4 MODEL 3160 02 POWER REQUIREMENTS 3 AND 10 MET
4. 3160 Series Pyramidal Horn Antenna User Manual SWETS LINDGREN An ESCO Technologies Company ETS Lindgren reserves the right to make changes to product described herein in order to improve function design or for any other reason Nothing contained shall constitute ETS Lindgren Inc assuming any liability whatsoever arising out of the application or use of any product or circuit described herein ETS Lindgren Inc does not convey any license under its patent rights or the rights of others O Copyright 1992 2014 by ETS Lindgren Inc All Rights Reserved No part of this document may be copied by any means without written permission from ETS Lindgren Inc Trademarks used in this document ETS Lindgren logo is a registered trademark of ETS Lindgren Inc Revision Record MANUAL 3160 SERIES Part 399185 Rev F Revision Description Date A Initial Release February 1992 B Edits updates October 2002 C Edits updates July 2003 D Rebrand July 2010 E Added 3160 5 and 3160 u7 November 2011 specifications F Added calculated gain formulas July 2014 and data Table of Contents Notes Cautions and 5 vii 1 0 Introduction eren 9 Tripod OPHONSE fara terende 11 ETS Lindgren Product Information Bulletin pp 12 2 0 Maintenance iene 13 Annual Calibration
5. 45 Equation a te 45 EqQUallOn An nn Equation 5 EQUATION asen oere dh coun sats Equation eedt d uA M A idee 46 Equation ra Ma I HR 46 Equation mare 46 Appendix Warranty pp 47 Appendix B Power 49 3160 0 MT M 50 Table 1 Model 3160 01 Power Requirements at 1 50 Table 2 Model 3160 01 Power Requirements at 3 and 10 Meters 50 9160 02 5 c tad i t Me dee Table 3 Model 3160 02 Power Requirements at 1 Meter Table 4 Model 3160 02 Power Requirements at 3 and 10 Meters 51 9160203 t 52 Table 5 Model 3160 03 Power Requirements at 1 52 Table 6 Model 3160 03 Power Requirements at 3 and 10 Meters 52 3160 04 C 53 Table 7 Model 3160 04 Power Requirements at 1 53 Table 8 Model 3160 04 Power Requirements at 3 and 10 Meters 53 316005 55 Table 9 Model 3160 05 Power Requirements at 1 55 Table 10 Model 3160 05 Power Requirements at 3 and 10 Meters 55 3160 06 sce nn tetteren ano ne M yeso oS SIEHE TREE 56 Table 11 Model 3160 06 Power Requirements at 1 Meter 56 Table 12 Model 3160 06 Power Requirements at 3 and 10 Meters
6. 4178 16012 12s 2345 9258 20831 1029 4115 16459 me ww woe 55 me sm mus 1645 sr us 55 1548 6192 1 933 88 2732 11008 160 1460 5842 1344 649 2596 1085 165 3525 12427 2435 9819 se iso 1 80 421 10623 325 2098 5394 58 3160 09 TABLE 17 MODEL 3160 09 POWER REQUIREMENTS 1 METER am ene GHz dB 1 m 10 Vim Vm 100 V m 324 42 1030 4159 185 153 341 402 010 978 3913 190 155 358 402 09 931 3723 195 158 376 403 009 887 3547 200 160 394 403 008 846 3385 aio 163 00 723 220 167 469 403 007 710 2842 as ies ow ee 230 171 509 404 007 656 2622 as oua 44 ow 252 240 174 549 404 006 607 2429 245 176 569 404 006 585 2342 250 177 590 404 006 565 2260 255 179 611 405 005 546 2182 260 180 632 405 005 527 2109 265 182 653 405 005 510 2040 TABLE 18 MODEL 3160 09 POWER REQUIREMENTS 3 AND 10 METERS Frequency Field Strength 10 meters m Liv po e pe Dam puel iso om 1030 4139 wu ul ae p en
7. 56 31600 rS 57 Table 13 Model 3160 07 Power Requirements at 1 Meter 57 Table 14 Model 3160 07 Power Requirements at 3 and 10 Meters 57 3160 08 TA Table 15 Model 3160 08 Power Requirements at 1 Meter Table 16 Model 3160 08 Power Requirements at 3 and 10 Meters 58 3160 09 p tia i Ae 59 Table 17 Model 3160 09 Power Requirements at 1 Meter 59 Table 18 Model 3160 09 Power Requirements at 3 and 10 Meters 59 den remet re cere tas 60 Table 19 Model 3160 10 Power Requirements at 1 Meter 60 Table 20 Model 3160 10 Power Requirements at 3 and 10 Meters 60 Appendix C Model 3160 Series 61 9160015 tona E n a dre ear E TEE RARE 61 VSWRE3160 0 1 2222 e t sinen ila 61 Gain Antenna Factor 3160 01 61 Half Power Beamwidth 3160 01 62 Antenna Pattern 3160 01 at 1 2 2 63 3160 02 leri e 64 VSWR 9160 02 etienne ERS 64 Gain Antenna Factor 3160 02 Half Power Beamwidth 3160 02 Antenna Pattern 3160 02 at 1 41 GHz 3160 032 22a Hear ea 67 VSWR 3180 03 isi ee nid e te sire 67 Gain Antenna Factor 3160 03
8. 10 92 5 46 41 52 70 93 48 64 3160 04 23 20 23 50 17 50 7 21 3 40 40 00 67 71 43 86 3160 05 23 20 16 01 11 60 5 07 2 52 26 85 46 70 29 00 3160 06 23 20 11 59 8 59 3 49 1 58 20 00 34 18 21 92 3160 07 24 22 7 60 5 80 229 1 02 12 62 20 37 14 06 3160 08 29 24 5 01 3 73 1 50 0 71 7 02 11 91 7 51 3160 09 30 26 3 54 2 56 0 95 0 32 4 69 7 96 5 00 3160 10 31 26 2 46 1 77 0 60 0 24 3 13 5 51 3 27 CALCULATED GAIN 3160 u5 3160 u7 3160 01 3160 02 Frequency G Frequency G Frequency G Frequency G 0 5 6 42 0 75 14 5549 0 96 14 8231 112 14 4253 0 55 7 07 0 8 15 0711 1 06 15 6164 1 236 15 2158 0 6 7 64 0 85 15 5505 1 16 16 3255 1 352 15 9232 0 65 8 13 0 9 15 997 1 26 16 9633 1 468 16 5601 0 7 8 16 0 95 16 4139 1 36 17 5397 1 584 17 1364 0 75 8 92 1 16 8039 1 46 18 0626 1 7 17 6598 40 3160 03 3160 04 3160 05 3160 06 Frequency G Frequency G Frequency G 17 14 34 2 6 14 811 3 95 14 9746 5 85 15 6617 1 88 15 1526 2 87 15 6315 4 33 15 7343 6 32 16 2986 2 06 15 8791 3 14 16 371 4 71 16 4232 6 79 16 8847 2 24 16 5331 3 41 17 0425 5 09 17 09 7 26 17 4266 2 42 17 1247 3 68 17 6558 5 47 17 6294 7 73 17 9293 2 6 17 6622 3 95 18 2182 5 85 18 161 82 18 3973 3160 07 3160 08 3160 09 3160 10 Frequency G Frequency G Frequency G Frequency G 8 2 5 0692 12 4 14 8536 18 14 9048 26 5 15 0323 9 04 5 8748 13 52 15 5532 19 7 15 9601 29 2 15 7974 9 88 6 6011 14 64 16 1886 21 4 1
9. 683 2734 17084 550 1285 5142 11569 sm 2285 14283 55 3160 06 TABLE 11 MODEL 3160 06 POWER REQUIREMENTS 1 METER o wam 500 V m sa la 590 158 377 298 883 3533 22079 555 158 334 wo 86 21724 650 166 454 299 734 2936 18349 675 169 488 299 683 2733 17081 775 180 632 300 527 2108 13177 80 183 671 300 497 1988 12423 eo s 702 309 475 18 186 TABLE 12 MODEL 3160 06 POWER REQUIREMENTS AT 3 AND 10 METERS TD GHz love E E en en zen 5 95 1955 7821 17597 369 3476 21724 eo pa 7696 mar sss 21379 eas Ins 16 291 316 19775 iesi eos 188 134 2936 16349 675 1537 6149 13835 683 2733 17081 A a L5 ose wen 10900 775 1186 4744 10673 527 2108 13177 1068 4273 9614 475 1899 11869 56 3160 07 TABLE 13 MoDEL 3160 07 POWER REQUIREMENTS 1 METER e En GHz Num dB l m re ea us 34 875 156 366 334 912 3648 22797 159 386 334 86 3457 21603 925 161 406 334 820 3281 20505 950 163 428 334 780 3119 19492 9375 1
10. 006 35 0 00 054 483 006 149 597 3600 ow os 460 0 14 5 em o oos 135 sa 3800 000 047 419 005 129 517 E EE L_4000 000 043 384 00 118 474 60 Model 3160 Series Data 3160 01 VSWR 3160 01 VSWR 0 9 1 0 1 1 1 2 1 3 1 4 1 5 Frequency GHz GAIN ANTENNA FACTOR 3160 01 0 9 1 0 1 1 1 3 1 4 1 5 61 HALF POWER BEAMWIDTH 3160 01 55 EPlane N N Degrees 0 9 1 0 1 1 1 2 1 3 1 4 1 5 Frequency GHz 62 3160 02 VSWR 3160 02 1 0 14 1 2 1 3 1 4 1 5 1 6 1 7 18 Frequency CHz GAIN ANTENNA FACTOR 3160 02 17 5 17 3 Gain dBi 3 1 4 1 5 1 6 1 7 1 8 Frequency GHz 1 0 11 1 2 1 64 HALF POWER BEAMWIDTH 3160 02 HPBW Degrees 1 1 1 2 1 3 1 4 1 5 Frequency GHz 1 6 65 3160 03 VSWR 3160 03 1 5 1 7 1 9 2 1 2 3 2 5 2 7 Frequency GHz GAIN ANTENNA FACTOR 3160 03 21 0 20 8 20 0 16 1 7 18 19 20 21 22 23 24 25 26 2 7 Frequency GHz 67 HALF POWER BEAMWIDTH 3160 03 1 6 1 7 18 18 20 21 EPlane 22 2 3 Frequency GHz 68 24 25 26 2 7 3160 04 VSWR 3160 04 2 5 2 8 3 1 3 4 3 7 4 0 Frequency GHz GAIN ANTENNA FACTOR 3160 04 24 0
11. 26 29 32 35 38 Frequency GHz 41 89
12. enint rana 13 Service Procedures ee een esee rt a 14 3 0 Specifications i reete tette 15 Electrical Specifications iiss lances uated et 15 3160 SONGS 15 Model 3160 5 and Model 3160 u7 Standard Gain Horns Below 1 GHz iade ihe cae 15 Model 160 15 16 3160 17 Physical Specifications oiii nennen adden 19 Model 3160 Series eite pee treten lasiert 19 Model 3160 u5 and Model 3160 u7 Standard Gain Horns Below 1 GHz Mod l 31603Ub cns ch rat 20 3160507 vin arterie rettet nter tees 25 4 0 Mounting Instructions annen 31 3160 09 and 3160 10 32 3160 09 3160 10 Mou ntto d TE A ML UE ALLE 33 Mount to 7 an 34 Mo nt to 2x2 BOOM estic repiten tee eh itane e e 35 5 0 Typical codi A AN LAENEN RARAN 37 Typical VSWR 3160 06 Typical Gain and Antenna Factor 3160 06 Calculated Far Field Gain et 39 Geometry of the Horns pp 40 Calculated Gains dia 40 Typical Half Power Beamwidth 3160 06 42 6 0 Radiated Emissions Measurements 43 Measure Ambient Field Strength Values pp 43 Conversion Formulas rene rtr 44 Equation 1 anre ei 44 Equation 2 aac iin eene ed A
13. and painted for protection against corrosion and changes in the weather Each Model 3160 Series antenna comes completely assembled with high performance low VSWR coax to waveguide adapter Below 18 GHz the transition from coax to waveguide is made using a female Precision connector Above 18 GHz the transition uses female K connectors The coax to waveguide adapters are the only power limiting component and can be removed if high fields are desired For this purpose the RF generator must be equipped with waveguide ports In such a configuration fields in excess of 10 000 V m at 10 meters can be obtained Each Model 3160 Series antenna comes with a standard 1 4 20 mount Horizontal and vertical polarizations are obtained by rotating the antennas from one position on the mount to the other The mounts have been placed so as not to interfere with incoming electromagnetic energy For the variety of mounting options available for the Model 3160 Series see Mounting Instructions on page 20 The Model 3160 Series may be used for either transmission or reception The 50 ohm input impedance is well matched for generating high electric fields with little power reflected back to the amplifier reducing the chance of saturation As a receiver the antennas are matched to free space 377 ohms Typical performance data is provided beginning on page 37 Methods for radiated emissions measurement are described on page 43 For TEMPEST applicati
14. included with your shipment for the following e Warranty information Safety regulatory other product marking information Steps to shipment Steps to return component for service ETS Lindgren calibration ETS Lindgren contact information 12 2 0 Before performing follow safety information in the ETS Lindgren Product Information Bulletin included with your shipment Maintenance of the Model 3160 Series is ARRANT limited to external components such as QA cables or connectors If you have any questions concerning maintenance contact ETS Lindgren Customer Service When not in use the Model 3160 Series Pyramidal Horn Antenna should be stored on a shelf face down to keep dust out of the feed areas If the Model 3160 Series is used outdoors the antennas should be checked for water accumulations Water has a high dielectric constant and can alter performance If an antenna is dropped feed horn joint should be checked for misalignment Annual Calibration The electromagnetic performance of the Model 3160 Series is almost exclusively dependent on the physical dimensions of the horns Comparisons with computed gain and antenna factor result in differences within 1 dB Therefore it is not necessary to calibrate Model 3160 Series antennas only a mechanical check
15. soueJealD 4 24 MODEL 3160 U7 Weight approximate 32 7 kg 72 0 6 gt Two mounting platforms are provided with the Model 3160 u7 Mounting fasteners 1 4 20 not provided 25 Model 3160 7 Aperture View 80 7 cm 31 8 in 26 3160 u7 Side View SIU pesn ueo 51 02 ul 9 09 27 Model 3160 u7 Back View o O O O O O L ANA Model 3160 u7 Bottom View Uuoheld uo 8 02 29 This page intentionally left blank 30 4 0 Mounting Instructions Before connecting any components follow the CAUTION safety information in the ETS Lindgren Product Information Bulletin included with your shipment The Model 3160 Series antennas are precision measurement devices Handle your antenna with care CAUTION Horizontal and vertical polarizations can be achieved by rotating the antenna from one mount to the other The Model 3160 u5 and Model 3160 u7 horns require customized mounts due to their large physical size for more information see the Model 3160 u5 Model 3160 u7 drawings provided in Physical Specifications beginning on page 20 Y y The Model 3160 Series Pyramidal Horn Antenna is equipped with a standard 1 4
16. sw 33 oo m 346 mas 2 00 070 3946 008 773 3094 9 em os 319 007 65 262 zo oo 055 3025 006 607 242 E EE a SE NR x we xn ws on 59 3160 10 TABLE 19 MoDEL 3160 10 POWER REQUIREMENTS 1 METER EE aes GH dB Num dB 1 m 2650 1528 3370 4339 010 247 99 2700 1543 3489 4340 010 239 955 28 00 1572 3732 4342 009 223 893 2900 1600 3982 4345 008 209 837 3100 1653 4497 4350 007 185 741 3300 1702 5034 4355 007 16 662 3400 1725 5309 4358 006 157 628 3500 1747 5588 4361 006 149 597 3600 1769 5872 4364 006 142 56 3700 1789 6159 4367 005 135 541 3800 1809 6449 4370 005 129 517 3900 1829 6743 4373 005 124 494 40 00 1847 7039 4377 005 118 4 TABLE 20 MoDEL 3160 10 PowER REQUIREMENTS AT 3 AND 10 METERS Frequency ereen Field meer Tvm 30Vim iva SVm 2650 oor 010 247 99 EIT on go f i ri le 290 001 075 678 008 209 837 0 001 637 008 197 78 3100 oo 0 60 007 185 74 E EE mE RE MN EE MEME BE NNNM NE E oi se
17. 1 21 17 Frequency MHz Computed Gain dBi Numeric Gain VSWR 840 15 51 35 57 1 11 850 15 57 36 07 1 07 860 15 64 36 67 1 11 870 15 73 37 39 1 16 890 15 93 39 14 1 19 900 16 04 40 15 1 18 910 16 15 41 24 1 16 920 16 27 42 35 1 12 930 16 38 43 45 1 09 940 16 49 44 53 1 08 950 16 59 45 56 1 11 960 16 68 46 51 1 16 970 16 76 47 37 1 22 980 16 82 48 12 1 26 990 16 88 48 76 1 28 1000 16 93 49 37 1 27 18 Physical Specifications MODEL 3160 SERIES Length Weight Construction L CREE KTR COENEN porem me ae ia feno co 19 MODEL 3160 05 AND MODEL 3160 07 STANDARD GAIN HORNS BELOW 1 GHZ MODEL 3160 05 Weight approximate 95 3 kg 210 0 Ib gt Two mounting subframes with hardware are provided with the Model 3160 u5 Hardware for customer mount is not provided Clearances in subframe top for access to holes in bottom 20 Model 3160 5 Aperture View 155 7 cm 61 3 in 21 3160 u5 Side View 177 9 cm 70 1 in NN m N st 22 Model 3160 u5 Back View U O9L wo 90 23 Model 3160 u5 Bottom View Clearance holes 7 in bottom of subframe are for or 3 8 16 bolts Hardware not provided 9 22 WI 64 U wo 956 4 sajoy
18. 20 mount The mount is placed so as not to interfere with incoming electromagnetic energy Once mounted remove the red cover from the Type connector and attach a cable between the antenna and a transmitting receiving RF device Rotate the antenna for horizontal and vertical polarizations as needed 31 3160 09 3160 10 3160 09 and 3160 10 antennas ship with supplemental mount that may be used with the 4 TR Tripod 7 TR Tripod mast and 2x2 boom 3160 09 103255 Clamping Block e 103256 Mounting Bracket 3160 10 103253 Clamping Block 103254 Mounting Bracket 32 Mount to 4 TR Do not mount the Model 3160 01 or CAUTION Model 3160 02 to a 4 TR Model 3160 Series antennas mount directly to an ETS Lindgren 4 TR Tripod no additional hardware is required Secure the mount onto the 4 TR by tightening the1 4 20 UNC mount knob 33 Mountto 7 Mast Following is an option for mounting the Model 3160 Series onto an ETS Lindgren 7 TR Tripod or mast Contact the ETS Lindgren Sales Department for information on ordering optional mounting hardware 34 Mast refers to 2070 Series 2075 and 2175 Antenna Towers 7 TR refers to these booms 109042 boom Straight boom for general antenna mounting on a 7 TR 108983 boom Offset boom for general antenna mounting on a 7 TR with pneumatic or manual polarization can also be used to mount stinger type antenn
19. 23 9 23 8 23 7 23 6 23 5 2 5 2 7 2 9 3 1 3 3 3 5 3 7 3 9 4 1 Frequency GHz 70 HALF POWER BEAMWIDTH 3160 04 35 x HPlane E Plane N o HPBW Degrees 2 5 2 7 2 9 3 1 3 3 3 5 Frequency GHz 71 3160 05 VSWR 3160 05 3 9 4 2 4 5 4 8 5 1 5 4 Frequency GHz GAIN ANTENNA FACTOR 3160 05 Gain dBi 27 0 10 38 40 42 44 46 48 50 52 5 4 56 58 60 GHz 73 HALF POWER BEAMWIDTH 3160 05 HPBW Degrees 39 41 4 3 45 47 49 5 1 Frequency GHz 74 HPlane 53 5 5 5 7 5 9 3160 06 VSWR 3160 06 7 5 8 0 8 5 5 5 6 0 6 5 7 0 Frequency GHz GAIN ANTENNA FACTOR 3160 06 18 20 30 5 Gain dBi Antenna Factor 4801 m 4 TIPP 30 5 516 30 1 o O14 29 9 12 29 7 29 5 69 72 75 78 Bi 84 57 60 65 66 Frequency GHz 76 HALF POWER BEAMWIDTH 3160 06 35 Plane 5 52 HPBW Degrees 5 7 6 0 6 3 6 6 6 9 7 2 7 5 Frequency GHz 77 E PLANE 3160 06 CER WEN 92 SI 3160 07 VSWR 3160 07 VSWR 10 Frequency GHz GAIN FACTOR 3160 07 480 Antenna Factor dB 1 20 34 0 187 Th TIZIO i 33 8 ERE 33 6 9 e jo c uae s
20. 6 2776 31 9 16 4806 10 72 7 2604 15 76 16 7687 23 1 16 8683 34 6 17 0941 11 56 7 8623 16 88 17 3006 24 8 17 4065 37 3 17 6474 12 4 8 4142 18 17 7898 26 5 17 8984 40 18 148 41 Typical Half Power Beamwidth 3160 06 Following is a plot of the half power beamwidth HPBW versus frequency The information provides the size of the Equipment Under Test EUT that can be illuminated without scanning The size of the EUT can be obtained as EUT 2 lt tan Ce Distance is the distance between the EUT and the aperture of the antenna HPlane EPlane HPBW Degrees 5 7 6 0 6 3 6 6 6 9 7 2 7 5 7 8 8 1 Frequency CHz 42 6 0 Radiated Emissions Measurements Measure Ambient Field Strength Values 1 Install the antenna where measured field strength values desired 2 Adjust the desired orientation of the antenna for both bore site direction and polarization 3 Connect the output connector of the antenna to the input of the receiving system using a low VSWR low loss coaxial cable The Model 3160 Series Pyramidal Horn Antennas are designed for receiving systems having 50 input impedance Other values of receiving system input impedance will require correction for the difference in impedance mismatch 4 desired measurement frequency on the receiving system Make sure that the selected frequency is one that can be used with the antenna that is connected to the system 5
21. 65 449 335 742 2969 18557 1000 167 471 335 708 2830 17690 1050 171 516 335 646 2582 16140 34125 127 587 335 56 2271 14192 1175 180 636 336 524 2095 13096 1200 182 661 336 504 2016 12599 TABLE 14 MoDEL 3160 07 POWER REQUIREMENTS 3 AND 10 METERS Frequency _ ma Na am oo 1944 nn 17499 864 3457 21605 1592 14329 2830 17690 1030 1453 13074 646 2532 16140 uw 53 5327 1986 592 2368 14797 us 1226 4905 11037 545 2180 13626 1240 1068 an 9631 475 1898 118 65 57 3160 08 TABLE 15 MODEL 3160 08 POWER REQUIREMENTS 1 METER o bee Num aB m 100 Vim 200 4 Vim 501 391 me am s as er pie 135 157 375 3711 890 3558 14234 uo s 236 s es I Tau so 571 731 2924 ness e 4 L3 em imss ko ini ss 5 16s ses 372 2455 9819 es es s sm us 8 372 52 2207 8828 180 373 525 2098 8394 TABLE 16 MODEL 3160 08 POWER REQUIREMENTS AT 3 AND 10 METERS ETE E te vim Dv ve Tm pum paie es 2650
22. E EE BEEN NE es EE E a asi mn mx ms mm sis 7731168 6613 2653 73s 2939 183 70 3s ex s ess 340 5896 23582 65 2620 163 77 is mw ss xus em n is CEE EE ux ee ben em 395 as 816 4 1980 12372 54 3160 05 TABLE 9 MODEL 3160 05 POWER REQUIREMENTS 1 METER Field Strength lm Num ab Um em ose Das za 128 3659 zum po zu ss pus zx ms 490 1 amp 7 4695 2729 710 2840 17730 sio 1704 5064 2731 658 2633 16457 520 1720 5252 2732 635 2539 158 66 50 1736 5444 2733 612 2449 15308 540 1751 5638 2734 59 2365 14781 550 1766 5834 2735 571 2285 14283 560 1781 6034 2736 552 2210 13811 570 1795 6236 2737 535 2138 133 64 580 1809 6440 2738 518 2070 12939 535 1816 6543 2739 509 2038 12735 TABLE 10 MoDEL 3160 05 POWER REQUIREMENTS AT 3 AND 10 METERS Lett Strength 3 mens Field Strength 10 meters 50 V m 150 V m 10 V m T io 23561982 21200 104 26172 40 1879 7514 16907 835 3340 20873 500 1538 6150 13838
23. ERS Frequency 112 2679 10715 42858 1191 4762 297 63 115 2549 10195 40778 1133 4531 283 18 120 2353 9413 37653 1046 4184 26148 15 2181 8724 34897 969 3877 24234 130 2028 81 13 32453 901 3606 22537 135 1892 7569 30277 841 3364 21026 tao mas 9694 145 1661 6646 26584 738 7954 18461 iss es 16579 160 1393 5574 22295 619 2477 15483 165 5280 2t sar 247 6r 51 3160 03 TABLE 5 MODEL 3160 03 POWER REQUIREMENTS 1 METER CRE GHz dB Num dB m 100 Vim 200 Vim 500 Vim 170 144 274 204 1217 4869 30431 175 146 289 204 1152 4610 288 10 180 148 305 205 1093 4372 27323 188 151 321 205 1038 4153 25954 10 153 337 205 988 3951 24693 ___195 155 354 205 941 3764 23528 210 161 406 206 821 3283 20520 220 165 442 206 754 3016 18848 225 166 461 206 724 2895 18096 230 168 479 206 696 2783 17391 25 170 498 206 6 69 267 16732 240 171 517 207 645 2578 16114 25 173 536 207 621 2485 15534 25 175 556 207 6 00 2398 149 88 TABLE 6 MODEL 3160 03 POWER REQUIREMENTS AT 3 AND 10 METERS Frequency
24. Eed Strength Smolen Weld Swengih To meters 730 100 200 Vim 10 Vim 20Vim Vim 190 2222 8890 35558 988 3951 24693 200 3592 mes 20 1847 7387 29549 821 3283 20520 20 1696 6785 27142 754 3016 18848 230 15 65 6261 25044 696 2783 17391 240 450 5801 23204 645 2578 161 14 20 1349 5396 21583 600 2398 149 88 es sn 201 86 560 2038 1990 52 3160 04 TABLE 7 MODEL 3160 04 POWER REQUIREMENTS 1 METER GHz dB Num 4 1 260 148 305 237 1095 4378 27364 270 152 328 237 1018 4070 25439 280 155 351 237 949 3795 23718 300 160 401 237 831 3324 207 77 310 163 427 237 781 3122 19515 320 166 44 237 735 2939 18370 330 168 481 237 693 2772 17328 340 wi 509 238 655 2620 16377 350 173 537 238 620 2481 15506 360 175 567 238 588 2353 14706 370 178 596 238 559 2235 13971 380 180 627 238 532 2127 13294 390 182 658 238 507 2027 12668 39 182 658 238 507 2027 12668 395 183 674 238 495 1980 12372 TABLE 8 MODEL 3160 04 POWER REQUIREMENTS AT 3 AND 10 METERS 53 ETEN GHz EINE E
25. Measure the RF voltage Va referenced to the input port of the receiving system The units of the measurement should be in decibels referenced to 1 microvolt If the units of measurements are millivolts they should be converted to dB HV by V 20 voltage in microvolts V 20 log Va 6 Determine the field strength at the frequency of observation by adding the voltage reading on the receiving system in dB uV to the antenna factor in dB m RF Voltage dB uV Antenna Factor Field Strength dB u V m E Va AF 43 losses of the coaxial cable should be included in the computations In this case the previous equation becomes RF Voltage dB uV Cable Loss dB Antenna Factor DB m Field Strength dB uV m Ea Va Ac AF Conversion Formulas Following are some useful conversion formulas including how the constants are obtained EQUATION 1 dBm dB uV 107 The power is related to the voltage and the system impedance as Ina 50 Q system the previous equation becomes 10log P 20log V 10102 50 Converting from dB to dBm for power and from dB V to dB uV for voltage the overall constant becomes 30 120 10log 50 107 44 EQUATION 2 dB mW m dB uV m 115 8 The constant in this equation is obtained by considering the Poynting vector which relates the power density in Wim to the electric field strength in V m by W
26. S NA 14 33 4 33 0 8 0 85 90 95 100 10 5 11 0 11 5 12 0 12 5 Frequency GHz 79 HALF POWER BEAMWIDTH 3160 07 35 5 HPlane Plane 32 8 229 2 26 T 23 20 80 85 90 95 100 10 5 11 0 11 5 12 0 12 5 Frequency GHz 80 AT yu A 3160 08 VSWR 3160 08 11 12 13 14 15 16 17 18 19 Frequency GHz GAIN ANTENNA FACTOR 3160 08 37 7 Gain dBi Antenna Factor dB 1 m 37 5 12 13 14 15 16 17 18 19 Frequency GHz 82 HALF POWER BEAMWIDTH 3160 08 55 HPBW Degrees N 12 13 14 15 16 Frequency GHz 17 18 19 83 3160 09 VSWR 3160 09 VSWR 0 18 19 20 21 22 23 Frequency GHz GAIN ANTENNA FACTOR 3160 09 dBi Antenna Factor dB 1 Gain dBi 17 18 19 20 21 22 23 24 Frequency GHz 24 25 25 26 27 40 28 85 HALF POWER BEAMWIDTH 3160 09 55 52 HPBW Degrees 17 18 14 20 21 22 23 GHz 86 HPlane EPlane 24 25 3160 10 VSWR 3160 10 26 28 30 32 34 36 38 40 42 Frequency GHz GAIN ANTENNA FACTOR 3160 10 20 Gain dBi Antenna Factor dB 1 m 18 a Gain dBi 35 37 39 4 Frequency GHz 23 27 29 31 33 88 HALF POWER BEAMWIDTH 3160 10 35 HPlane EPlane N N CA o N HPBW Degrees N 20
27. amidal Horn Antenna 15 a series of pyramidal standard gain horn antennas designed specifically for utilization in emissions and immunity testing over the frequency range of 1 GHz to 40 GHz The Model 3160 Series includes models 3160 01 through 3160 10 Each Model 3160 Series antenna is linearly polarized and has medium gain wide half power beamwidth HPBW in both the horizontal and vertical planes low VSWR over the recommended operating frequency range and constant antenna factors so that the antennas can be used without looking up tables or charts The performance of the Model 3160 Series is precise and predictable through design parameters Both input and output are well matched to 50 Q and 377 Q respectively Comparisons of measured versus computed gain and antenna factors have been found to be within 0 5dB The Model 3160 Series antennas are considered to be the standard reference of measurements above 1 GHz as is the resonant dipole for measurements below 1 GHz Each Model 3160 Series antenna is ruggedly constructed for good electromagnetic performance Models 3160 01 through 3160 06 are welded using precise toolings and aluminum sheet metal Models 3160 07 3160 08 investment casted using aluminum compound Models 3160 09 3160 10 electroformed using deposition of copper at a rate of 0 001 inch hour for the highest precision available Models 3160 01 through 3160 08 are conversion coated
28. as 108507 boom Centerline rotation boom for Model 3106 Series antennas only when changing polarization maintains centerline rotation 7 TR Mast To antenna mounting hole 104169 Boom Antenna L1 Mount Knob Through boom on 7 TR Mast Mount to 2 2 Following are options for mounting the Model 3160 Series onto 2x2 boom Contact the ETS Lindgren Sales Department for information on ordering optional mounting hardware gt 2x2 boom refers to a typical 2 inch by 2 inch boom 2x2 Boom To OR To antenna antenna mounting mounting 101913 101937 Fixed Swivel Antenna Antenna Mount Mount Insert boom through Insert boom through 35 This page intentionally left blank 36 5 0 Typical Data Following is typical electromagnetic performance data for the Model 3160 Series Pyramidal Horn Antenna using Model 3160 06 data as representative of the series See Model 3160 Series Data on 61 data for all Model 3160 Series antennas Typical VSWR 3160 06 The following shows the antenna coax to waveguide adapter assembly 5 5 6 0 6 5 7 0 7 5 8 0 8 5 Frequency GHz 37 Typical Gain and Antenna Factor 3160 06 Following is a plot of computed and measured gain and antenna factor versus frequency The measured and computed results are within 3 dB which is typical of pyramidal horns Differences are attributed to imperfections in the measur
29. ements setup The left vertical scale is for the gain measured in dBi and the right vertical scale is for the antenna factor in dB m The antenna factor spans only 0 6 dB from minimum to maximum therefore it may be considered constant over the entire frequency band without loss of accuracy The gain is computed from the antenna factor using G dB 20 log fon AF yy 30 22 DA SEM dn SRI Computed Gain dBi Measured Gain dBi Computed dB 1 m Measured 481 m 5 7 6 0 6 3 66 69 72 75 78 8 8 4 Frequency GHz 38 Calculated Far Field Gain The gain of a pyramidal horn linear gain not dB is calculated as follows 1 g 4g Q0 S CW CO GW SOY Where V2V A And 1 2 Finally B S x are the Fresnel Cosine Integral and the Fresnel Sine Integral functions 39 HORNS units degrees waveguide flare Flares E and H angle H angle E A B a b L 4 3160 5 41 36 155 42 120 88 35 56 17 78 159 16 253 11 171 98 3160 7 32 28 80 41 59 99 25 07 12 38 96 14 167 07 108 31 3160 01 32 28 62 58 49 87 19 56 9 78 75 00 130 35 90 44 3160 02 32 27 52 82 39 55 16 51 8 26 64 00 11120 72 46 3160 03 31 28 34 00 26 00
30. here n is the free space characteristic impedance equal to 1207 Transforming the previous questions to decibels and using the appropriate conversion factors to convert dB W m to dB mW m for power density and dB V m to dB uV m for the electric field the constant becomes 30 120 1010g 1207 115 8 EQUATION 3 dB uV m dB uV AF EQUATION 4 dB V m 120 V m 10 20 EQUATION 5 dB 1A m dB uV m 51 5 The magnetic field strength is related to the electric field strength via the characteristic impedance of free space When the transformation is made to decibels the constant becomes 45 20 log 120 z 51 5 EQUATION 6 dB A m 120 10 20 EQUATION 7 dB W m 10 log V m A m EQUATION 8 dB mW m2 dB W m2 30 0 EQUATION 9 dB pT 2 0 The magnetic flux density B in T is related to the magnetic field strength H in A m by the permeability of the medium in H m For free space the permeability is 47 107 H m Converting from T to pT and from A m to A m and taking the log the constant becomes 240 120 20l0g 47x107 2 0 46 Warranty See the Product Information Bulletin included with your shipment gt the complete ETS Lindgren warranty for your Model 3160 Series DURATION OF WARRANTIES FOR MODEL 3160 SERIES All product warranties except the warranty of title and all remedies for warranty fa
31. ilures are limited to two years Product Warranted Duration of Warranty Period Model 3160 Series 2 Years Pyramidal Horn Antenna 47 This page intentionally left blank 48 Power Requirements The Model 3160 Series Pyramidal Horn Antenna is an efficient transmitting antenna capable of generating high electric field strengths using little power For a given electric field strength the required power can be computed using the transmission equation Field Strength Distance in meters 30 x Numeric Gain R E 305 Power Transmitted The typical power requirements in Watts for the 3161 06 are shown in Table 11 Table 12 on page 56 Distance is measured from the aperture of the antenna The maximum continuous power that can be applied is 250 W and the maximum peak power is 8 kW For example to generate an electric field equal to 100 V m distance of 3 meters at a frequency of 6 25 GHz the calibration antenna factor read from Table 1 is 29 9 dB m The gain in dB is computed using G dB 20 log Fan AF 30 22 G dB 20 log 6 25 29 9 30 22 16 2 The numeric gain is obtained as g 10 42 1 Applying this equation we obtain p 100 3 1 71 1W 30g 30 42 2 49 3160 01 TABLE 1 MODEL 3160 01 POWER REQUIREMENTS 1 METER GHz _ 2 E 200 Vim 500 V m s Tas puer Tas 10
32. is required to guarantee performance However if calibration is required see the Product Information Bulletin included with your shipment for information on ETS Lindgren calibration services 13 Service Procedures For the steps to return a system or system component to ETS Lindgren for service see the Product Information Bulletin included with your shipment 14 3 0 Specifications Electrical Specifications MODEL 3160 SERIES e The VSWR indicated in the following table is that of the pyramidal horn antenna and coax to waveguide adapter The VSWR of the antenna by itself is of the order of 1 1 1 e The maximum continuous power indicated in the following table is mainly limited by the coax to waveguide adapter The antenna itself is capable of handling continuous power on the order of 10 Watts to 10 Watts Model Frequency AF VSWR w Max Cont Connector GHz dB 1 m feed Power W Type 3160 01 1 6 550 Prec N 3160 02 1 12 1 70 16 85 1 5 500 Prec N 3160 03 3160 04 3160 05 395 5 85 27 30 1 5 200 Prec N 3160 06 5 85 8 20 1 5 3160 07 8 20 12 40 1 5 3160 08 12 40 18 00 1 5 3160 09 18 00 26 50 1 5 3160 10 26 50 40 00 1 5 MODEL 3160 U5 AND MODEL 3160 07 STANDARD GAIN HORNS BELOW 1 GHZ ETS Lindgren also offers these two standard gain horns Model 3160 u5 Operates from 500 MHz to 750 MHz Model 3160 u7 Operates from 750 MHz to 1 GHz These horns require cus
33. ons all Model 3160 Series antennas especially models 3160 03 and up can be mounted on standard 12 18 or 24 inch reflector dishes The resulting antenna factor is usually about 20 dB lower than that of the antennas by themselves However the HPBW drops to less than 50 and the far field distance increases drastically making near field performance less predictable 10 Tripod Options Do not mount the Model 3160 01 or Model 3160 02 to a 4 TR ETS Lindgren offers the following non metallic non reflective tripods for use at both indoor and outdoor EMC test sites 4 TR Tripod Constructed of linen phenolic and delrin designed with an I adjustable center post for precise height adjustments Maximum height is 2 0 m 80 0 in and minimum height is 94 cm 37 0 in This tripod can support up to an 11 8 kg 26 0 Ib load e 7 TR Tripod Constructed of PVC and fiberglass components providing increased stability for physically large antennas The unique design allows for quick assembly disassembly and convenient storage Allows several different configurations including options He for manual or pneumatic polarization Quick height adjustment and locking wheels provide ease of use during testing Maximum height is 2 17 m 85 8 in with a minimum height of 0 8 m 31 8 in This tripod can support a 13 5 kg 30 Ib load 11 ETS Lindgren Product Information Bulletin See the ETS Lindgren Product Information Bulletin
34. tomized mounts due to their large physical size for more information see the Model 3160 u5 and Model 3160 u7 drawings provided in Physical Specifications beginning on page 20 The following sections provide the computed gain for the Model 3160 u5 and Model 3160 u7 15 Farfield gain computed using full wave analysis MW Studio MODEL 3160 U5 Frequency MHz Computed Gain dBi Numeric Gain VSWR 500 16 42 43 87 1 48 510 16 76 47 37 1 43 520 16 95 49 52 1 35 530 17 02 50 40 1 24 540 17 06 50 80 1 13 550 17 11 51 44 1 07 560 17 21 52 56 1 12 570 17 32 53 93 1 17 580 17 42 55 19 1 17 590 17 50 56 25 1 13 600 17 58 57 30 1 07 610 17 68 58 55 1 06 620 17 78 60 01 1 13 630 17 88 61 44 1 18 640 17 96 62 55 1 18 650 18 02 63 37 1 16 670 18 18 65 80 1 10 680 18 33 68 09 1 08 16 Frequency MHz Computed Gain dBi Numeric Gain VSWR 690 18 50 70 79 1 09 700 18 64 73 11 1 13 710 18 71 74 30 1 16 720 18 70 74 13 1 16 760 18 65 73 22 1 14 740 18 53 71 30 1 12 750 18 50 70 86 1 10 MODEL 3160 07 Farfield gain computed using full wave analysis MW Studio Frequency MHz Computed Gain dBi Numeric Gain VSWR 750 14 64 29 09 1 35 760 14 77 29 99 1 33 770 14 90 30 91 1 34 780 15 03 31 84 1 38 790 15 15 32 77 1 41 800 15 26 33 60 1 42 810 15 35 34 27 1 38 820 15 41 34 77 1 31 830 15 46 35 17
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