Measur ement antennas, Half octave single linear feed horns – ORBIT FR Compact Range feed horns User Manual
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Measur
ement antennas
Half octave single linear feed horns
The medium gain corrugated horn is the first choice
for general purpose compact ranges. It offers the
best overall performance in regard to amplitude taper,
cross polarization performance, reflector edge illumi-
nation, chamber wall illumination, and feed leakage
into the quiet zone.
The low gain corrugated feed horns offer lower
amplitude taper (typically 0.3 dB over the full quiet
zone versus 0.8 dB for the medium gain horns)
at the cost of slightly degraded quiet zone ripple
and cross-polarization performance. It is also fre-
quently used on compact range systems with
shorter focal lengths, which require an illumination
cone angle of ± 16 deg. Other advantages of the low
gain feeds are lower weight and the availability of a full
octave frequency bandwidth up to 8 GHz.
Part number
Frequency
Gain
Directivity
VSWR
Taper
Cross
Nominal 3 dB
range (GHz)
(dBi) (Typ) (dBi)
(Typ)
(dB)
(1)
polarization
(1)
(Typ) Beamwidth
AL 2309-0.75 SL
0.75 - 1.12
13
14
1.6:1
0.8
35°
34 - 40°
AL 2309-1.12 SL
1.12 - 1.70
13
14
1.6:1
0.8
35°
34 - 40°
AL 2309-1.70 SL
1.70 - 2.60
13
14
1.6:1
0.8
37°
34 - 40°
AL 2309-2.00 SL
2.00 - 3.00
13
14
1.6:1
0.8
37°
34 - 40°
AL 2309-2.60 SL
2.60 - 3.95
13
14
1.6:1
0.8
37°
34 - 40°
AL 2309-3.00 SL
3.00 - 4.50
13
14
1.6:1
0.8
37°
34 - 40°
AL 2309-3.95 SL
3.95 - 5.85
13
14
1.4:1
0.8
40°
34 - 40°
AL 2309-4.50 SL
4.50 - 6.70
13
14
1.4:1
0.8
40°
34 - 40°
AL 2309-5.85 SL
5.85 - 8.20
13
14
1.4:1
0.8
40°
34 - 40°
AL 2309-6.70 SL
6.70 - 10.0
13
14
1.4:1
0.8
40°
34 - 40°
AL 2309-8.20 SL
8.20 - 12.4
13
14
1.4:1 0.8
40°
34 - 40°
AL 2309-10.0 SL
10.0 - 15.0
13
14
1.4:1 0.8
40°
34 - 40°
AL 2309-12.4 SL
12.4 - 18.0
13
14
1.4:1 0.8
40°
34 - 40°
AL 2309-15.0 SL
15.0 - 22.0
13
14
1.4:1 0.8
40°
34 - 40°
AL 2309-18.0 SL
18.0 - 26.5
13
14
1.4:1 0.8
40°
34 - 40°
AL 2309-22.0 SL
22.0 - 33.0
13
14
1.4:1 0.8
40°
34 - 40°
AL 2309-26.5 SL
26.5 - 40.0
13
14
1.4:1 0.8
40°
34 - 40°
AL 2309-33.0 SL
33.0 - 50.0
13
14
1.4:1 0.8
37°
34 - 40°
AL 2309-40.0 SL
40.0 - 60.0
13
14
1.4:1 0.8
35°
34 - 40°
AL 2309-50.0 SL
50.0 - 75.0
13
14
1.4:1 0.8
35°
34 - 40°
AL 2309-60.0 SL
60.0 - 90.0
13
14
1.4:1 0.8
35°
34 - 40°
AL 2309-75.0 SL
75.0 - 110.0
13
14
1.4:1
0.8
35°
34 - 40°
(1) Cross-polarization applies to the conical angle of +- 8 deg, which illuminates the quiet zone of ORBIT/FR compact ranges.
Mechanical drawing
Medium gain
•
Alignment pin for accurate and repeatable
mounting.
•
Spirit level for repeatable polarization
reference.
Medium gain feed horns with
dual polarization for more
efficient range utilization
are available upon request.