SPIRAL ANTENNA |
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Our OBS series cavity backed spiral antennas are broadband antennas designed for EMC, surveillance, direction finding, telemetry, and flush mounted airborne applications. These spiral antennas can be used as a separate component antenna or as broadband feeds for reflector type dish antennas. ALL OBS series spiral antennas exhibit an excellent impedance match and radiation pattern control over the broad operating bands in a compact and lightweight package. These spiral antennas are ideally suited for amplitude matching and phase or gain tracking. The unit-to-unit uniformity and frequency independent performance is ideal for airborne monitoring receiving systems. ALL cavity backed spirals are available in RHCP or LHCP. These spiral antennas have been designed to operate in a harsh environment and meet the extremes of the Surroundings Specification. Also we provide specific frequency spiral antennas according to customers' requirement. |
Copyright(C)2005-2009 Oceanmicrowave Tel:+86-10-60290088 E-mail:sales@oceanmicrowave.com |
PN. |
Frequency (GHz) |
Gain (dBic) |
Axial Ratio (dB)(Max.) |
VSWR |
VSWR (Typ.) |
3dB Beamwidth (º) |
Connector |
Size(mm) |
Datasheet |
Spiral antenna OBS520 |
0.5~2 |
≥-5 |
≤6 |
2:1 |
RHCP/LHCP |
55~120 |
N |
Ф226×230 |
|
Spiral antenna OBS840 |
0.8~4 |
≥0 |
≤3 |
2:1 |
RHCP/LHCP |
70~110 |
SMA |
Ф154×85 |
|
Spiral antenna OBS1020 |
1~2 |
≥-3 |
≤3 |
2:1 |
RHCP/LHCP |
55~120 |
SMA |
Ф135×90 |
|
Spiral antenna OBS1080 |
1~8 |
≥-4 |
≤4 |
2:1 |
RHCP/LHCP |
60~120 |
SMA |
Ф120×90 |
|
Spiral antenna OBS10180 |
1~18 |
≥-4 |
≤3 |
3:1 |
RHCP/LHCP |
55~120 |
SMA |
Ф120×90 |
|
Spiral antenna OBS2040 |
2~4 |
≥1 |
≤4 |
2:1 |
RHCP/LHCP |
55~120 |
SMA |
Ф68×50 |
|
Spiral antenna OBS20180A |
2~18 |
≥-4 |
≤3 |
2.5:1 |
RHCP/LHCP |
55~135 |
SMA |
Ф61.5×50 |
|
Spiral antenna OBS20180B |
2~18 |
≥-4 |
≤4 |
2.5:1 |
RHCP/LHCP |
55~135 |
SMA |
Ф55×50 |
|
Spiral antenna OBS20180C |
2~18 |
≥-9 |
≤6 |
2.5:1 |
RHCP/LHCP |
55~120 |
SMA |
Ф40×50 |
|
Spiral antenna OBS4080 |
4~8 |
≥1 |
≤3 |
2.5:1 |
RHCP/LHCP |
55~120 |
SMA |
Ф35×40 |
|
Spiral antenna OBS60180 |
6~18 |
≥0 |
≤4 |
2.5:1 |
RHCP/LHCP |
50~120 |
SMA |
Ф25×50 |
|
Spiral antenna OBS18265 |
18~26.5 |
≥-4 |
≤3 |
3:1 |
RHCP/LHCP |
55~120 |
SMA |
Ф30×30 |