spiral antennaspiral antenna
SPIRAL ANTENNA
 
 
 

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.

 

spiral antenna spiral antenna spiral antenna
spiral antenna spiral antenna spiral antenna
spiral antenna spiral antenna spiral antenna
 Copyright(C)2005-2009 Oceanmicrowave Tel:+86-10-60290088   1 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

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