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Page 14 of 22

 

INSTRUCTION MANUAL

 

AH-8055

 HIGH GAIN HORN ANTENNA 

 

1912 1 E l T o ro R d  

   Si l vera do,  Ca lifo rni a 9 26 76  

  (9 49)  459 -96 00   

  co m-p o wer. com

 

 

REV051517 

 

5.1  AH-8055 as a Transmitting Antenna  

Illustrated in Figure 6 is the AH-8055 High Gain Horn Antenna configured for use as 
a transmitting antenna. Illustrated in Figure 7 is a typical system arrangement for 

this antenna configuration, with the antenna port connected directly to the 

output port of a power amplifier.  In practice, a power amplifier may or may not 
be used, depending on the desired magnitude of the generated field. 
 
 
 
 
 
 
 
 

Figure 6 –

 

AH-8055 as a Transmitting Antenna 

In this configuration, the AH-8055 is used as a transmitting antenna.  Some 

examples of these applications are listed below: 

o

 

Site Validation tests, such as the reciprocal S

VSWR

 procedure described in 

CISPR 16-1-4 

o

 

Radiated RF Immunity (or susceptibility) testing, such as that described in 
IEC 61000-4-3, MIL-STD 461x, DO-160, etc. 

o

 

Antenna Calibrations per ANSI C63.5, ARP 958, etc. 

For applications such as those listed above, the isotropic gain factors have 
importance, rather than the antenna factors, as described in section 5.1.1. 

 

 

 

 

 

Figure 7 –

 

Typical Equipment Arrangement for Transmitting Applications 

RF SIGNAL

GENERATOR

RF POWER

AMPLIFIER

Summary of Contents for AH-8055

Page 1: ...ION MANUAL AH 8055 HIGH GAIN HORN ANTENNA 19121 El Toro Rd Silverado California 92676 949 459 9600 com power com REV051517 INSTRUCTION MANUAL for HIGH GAIN HORN ANTENNA Model AH 8055 800 MHz to 5 GHz...

Page 2: ...Setup for Reference Measurements R 12 Figure 4 Setup for Insertion Loss Measurements I 12 5 0 Antenna Configurations Modes of Operation 13 Figure 5 Antenna Configurations Modes of Operation 13 5 1 AH...

Page 3: ...NTENNA 19121 El Toro Rd Silverado California 92676 949 459 9600 com power com REV051517 8 0 Typical Performance Data 21 Figure 12 Typical Antenna Factors and Isotropic Gain Values 21 Figure 13 Typical...

Page 4: ...ual includes product specifications safety precautions warranty information guidelines and usage instructions for the AH 8055 for different applications Information contained in this manual is the pro...

Page 5: ...s CDN Comb Generators Current Probes Emissions Test Systems Conducted Immunity Test Systems Impedance Stabilization Networks ISN Line Impedance Stabilization Networks LISN Antenna Masts Near Field Pro...

Page 6: ...ease check the contents of the shipment against the package inventory in section 3 2 to ensure that you have received all applicable items If shipping damage to the product or any of the accessories i...

Page 7: ...rt is a precision female N type connector When used as a receiving antenna this port is the antenna output port Conversely when used as a transmitting antenna it is the antenna input port Mounting Hol...

Page 8: ...Nominal Impedance 50 Power Handling 450 Watts continuous Antenna Factors 13 8 to 24 2 average 19 7 dB m Isotropic Gain 10 6 to 23 1 dBi VSWR antenna port 1 17 to 2 88 average 1 69 1 Return Loss antenn...

Page 9: ...ers and the cables attenuators adapters filters etc can all be lumped into one general category 3 Insertion Loss Factors These three categories of correction factors are discussed in the following sec...

Page 10: ...d connected to the antenna and expressed in decibel form 20 log E Vo Put more simplistically the antenna factor represents the difference in dB between A the voltage present across the output port of...

Page 11: ...rmula is modified as follows 4 3 Insertion Loss Factors As discussed previously our third category of correction factors is insertion loss factors These factors can include the insertion loss values o...

Page 12: ...e with the appropriate frequency capabilities such as a signal generator function generator or even a Com Power Comb Generator 4 3 1 1 Insertion Loss Measurement Procedure 1 REFERENCE MEASUREMENTS R W...

Page 13: ...459 9600 com power com REV051517 5 0 Antenna Configurations Modes of Operation The AH 8055 high gain horn antenna while designed primarily for use as a transmitting antenna may also be used as a rece...

Page 14: ...on the desired magnitude of the generated field Figure 6 AH 8055 as a Transmitting Antenna In this configuration the AH 8055 is used as a transmitting antenna Some examples of these applications are l...

Page 15: ...eld Strength with 450W input power The graph shown in Figure 9 shows the calculated power requirements based on typical factors for various field strength levels at various test distances as well as t...

Page 16: ...ain Horn Antenna configured for use as a receiving antenna Illustrated in Figure 11 is a typical system arrangement for this antenna configuration with the antenna port connected to the input of a pre...

Page 17: ...connecting the AH 8055 to the preamplifier Cable 1 3 The Insertion Loss Factor for the cable connecting the preamplifier to the spectrum analyzer Cable 2 4 The gain of the RF preamplifier We ll assum...

Page 18: ...to the attenuator input Reposition if necessary the antenna to the height noted in Step 1 4 Re measure the amplitude of the signal and compare it to the amplitude determined in Step 1 The amplitude re...

Page 19: ...ion of your AH 8055 is recommended when it is used as a receiving antenna Calibration intervals is left to your discretion but should be chosen based on the frequency with which it is used and or as a...

Page 20: ...nty to repair damage resulting from attempts to install repair service or modify the instrument by personnel other than Com Power service representatives Under no circumstances does Com Power recogniz...

Page 21: ...20 80 19 51 1100 11 84 19 19 3300 20 82 19 75 1200 14 16 17 63 3400 21 18 19 65 1300 14 62 17 86 3500 21 58 19 50 1400 13 96 19 16 3600 22 10 19 23 1500 15 16 18 56 3700 21 82 19 75 1600 15 20 19 08...

Page 22: ...6 949 459 9600 com power com REV051517 Figure 13 Typical VSWR Return Loss Figure 14 Typical 3 dB Beamwidth 0 10 20 30 40 50 60 0 5 1 5 2 5 3 5 4 5 5 5 6 5 Frequency GHz 3 dB Beamwidth degrees H Plane...

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