1 GHz to 8 GHz Cavity Backed Spiral Antenna OBS-1080
$1599
Frequency: 1.0GHz-8.0GHz
Gain: -3Typ~1Typ
VSWR: 2.5:1
Connection Type: SMA-Female
Polarization: LHCP/RHCP
The OBS-1080 is suitable for electronic-warfare, direction-finding, telemetry, and surveillance systems, as well as flush-mounted airborne applications.
- Description
- Datasheet
- Outline
- Plot
Description
Cavity Backed Spiral Antenna |
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1GHz to 8GHz |
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OBS1080 |
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The OBS1080 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 8.0 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. |
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Property |
Value |
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Part No. |
OBS-1080 |
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Min. Frequency (GHz) |
1 |
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Max. Frequency (GHz) |
8 |
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Nominal Gain |
-3dB Typ ∼ 1dB Typ |
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Max. VSWR |
Maximum 2.5:1, Typical 2.0:1 |
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Pattern |
Directional Beam |
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3 dB Beam Width |
65° Minimum, Typical |
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10 dB Beam Width |
120° Typical |
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Input Impedance(Ω) |
50 |
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Connector |
SMA Female |
Features |
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Very convenient to carry and Light weight |
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Wide Beam width |
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Small Volume |
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With Circular Polarization, Wide beam width |
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Main Lobe Width |
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Applications |
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Satellite communications |
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Personal mobile communications |
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Electronic warfare, direction finding, telemetry, and surveillance systems |
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Embedded airborne applications |
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