1 GHz to 18 GHz Cavity Backed Spiral Antenna OBS-10180
$1599
Frequency: 1.0GHz-18.0GHz
Gain: -3.5Typ~5.3Typ
VSWR: 2.5:1
Connection Type: SMA-Female
Polarization: LHCP/RHCP
The OBS-10180 is suitable for electronic-warfare, direction-finding, telemetry, and surveillance systems, as well as flush-mounted airborne applications.
- Description
- Datasheet
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Description
Cavity Backed Spiral Antenna
1GHz to 18GHz
OBS-10180
The OBS-10180 is a compact, moderate gain, moderate VSWR, circularly-polarized cavity-backed spiral antenna designed to transmit and receive in the frequency band of 1.0 GHz to 18.0 GHz. The antenna exhibits an excellent impedance match and radiation pattern.
It is capable of receiving both linearly polarized signals and a circularly polarized signal. The linear gain (dBil) is about 3 dB lower than the circular gain (dBic).
The antenna has the advantages of a low profile, a planar aperture, no phase center offset, near constant beam width across the frequency band, normally symmetrical radiation beam width, extreme flexibility for carrying, and lightweight.
These advantages render the antenna a very good candidate for electronic warfare, direction-finding, telemetry, and surveillance systems, as well as flush-mounted airborne applications. The antenna can also be used as a broadband feed for reflector antennas.
The antennas outermost dimensions are a diameter of 68mm and a height of 50mm.
Applications
- Satellite communications
- Personal mobile communications
- Electronic warfare, direction finding, telemetry, and surveillance systems
- Embedded airborne applications
Features
- Very convenient to carry
- Wide frequency band
- Lightweight
- Small volume
- Easy packaging
- Main lobe width
- With circular polarization, wide beam width
| Cavity Backed Spiral Antenna Specifications | |
| Part No. | OBS-10180 |
| Frequency | 1GHz-18GHz |
| Nominal Gain | -3.5 dB Typ ~ 5.3 dB Typ |
| VSWR | Maximum 2.5:1, Typical 2.0:1 |
| Pattern | Directional Beam |
| 3 dB Beam Width | 65°Minimum, Typical |
| 10 dB Beam Width | 120°Typical |
| Input Impedance | 50 Ohms Nominal |
| Input Connector | SMA Female |
