1 GHz to 8 GHz Cavity Backed Spiral Antenna OBS-1080
$1599
The OBS-1080 is a compact, cavity-backed spiral antenna designed for high-performance transmission and reception across the 1.0 GHz to 8.0 GHz frequency range. With moderate gain and VSWR, this circularly polarized antenna provides an excellent impedance match and radiation pattern.
Key features of this antenna include the ability to receive both linearly and circularly polarized signals, with linear gain approximately 3 dB lower than circular gain. Its low-profile design, planar aperture, no phase center offset, flexibility for carrying, and lightweight and symmetrical radiation beam width ensure consistent performance across the entire frequency band. The antenna’s outermost dimensions are a diameter of 68mm and a height of 50mm.
With these advantages, it is ideal for a variety of demanding applications. First of all, It designed for longer-range communication, and provides excellent signal propagation and lower attenuation, making it a prime choice for satellite communication, terrestrial radio links, and military communication systems. It’s well-suited for general radar systems, including air traffic control radar, weather monitoring, and early warning radar systems, where broad area coverage is critical. In electronic warfare (EW), this antenna excels at signal interception, jamming, and wide-area electronic surveillance, making it an essential component in broad-spectrum defense systems. Lastly, its lower frequency range allows it to be integrated into broadband antenna systems that balance moderate resolution with long-distance coverage, making it a versatile solution for a range of industries.https://www.rfecho.com/product-category/rf-antenna/cavity-backed-spiral-antenna/
- Description
- Additional information
Description
SPEC
Cavity Backed Spiral Antenna
1GHz to 8GHz
OBS1080
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 antenna’s 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. | OBS1080 |
| Frequency | 1GHz-8GHz |
| Nominal Gain | -3 dB Typ ~ 1 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 |
Outline
Plot
SPEC
Cavity Backed Spiral Antenna
1GHz to 8GHz
OBS1080
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 antenna’s 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. | OBS1080 |
| Frequency | 1GHz-8GHz |
| Nominal Gain | -3 dB Typ ~ 1 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 |
Outline
Plot
Additional information
| Min. Frequency (GHz) | 1 |
|---|---|
| Max. Frequency (GHz) | 8 |
| Gain (dBi) | -3 Typ~1 Typ16° |
| VSWR | 2.5:1 |
| Impedance (Ω) | 50 |
| Connection Type | SMA-Female |
| Polarization | LHCP/RHCP |