spiral antenna

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全系列喇叭天线全系列喇叭天线
 

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.

 

 According to customers' requirement, also we provide specific frequency spiral antennas, Especially bandwidth spiral antennas with special demands of frequency .

 

Test report is for reference only

 

 

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

Spiral antenna OBS840

0.8~4

≥0

≤3

2:1

RHCP/LHCP

70~110

SMA

Ф154×85

spiral antenna

Spiral antenna OBS1020

1~2

≥-3

≤3

2:1

RHCP/LHCP

55~120

SMA

Ф135×90

spiral antenna

Spiral antenna OBS1080

1~8

≥-4

≤4

2:1

RHCP/LHCP

60~120

SMA

Ф120×90

spiral antenna

Spiral antenna OBS10180

1~18

≥-4

≤3

3:1

RHCP/LHCP

55~120

SMA

Ф120×90

spiral antenna

Spiral antenna OBS2040

2~4

≥1

≤4

2:1

RHCP/LHCP

55~120

SMA

Ф68×50

spiral antenna

Spiral antenna OBS20180A

2~18

≥-4

≤3

2.5:1

RHCP/LHCP

55~135

SMA

Ф61.5×50

spiral antenna

Spiral antenna OBS20180B

2~18

≥-4

≤4

2.5:1

RHCP/LHCP

55~135

SMA

Ф55×50

spiral antenna

Spiral antenna OBS20180C

2~18

≥-9

≤6

2.5:1

RHCP/LHCP

55~120

SMA

Ф40×50

spiral antenna

Spiral antenna OBS4080

4~8

≥1

≤3

2.5:1

RHCP/LHCP

55~120

SMA

Ф35×40

spiral antenna

Spiral antenna OBS60180

6~18

≥0

≤4

2.5:1

RHCP/LHCP

50~120

SMA

Ф25×50

spiral antenna

Spiral antenna OBS18265

18~26.5

≥-4

≤3

3:1

RHCP/LHCP

55~120

SMA

Ф30×30

spiral antenna

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