0.5 GHz to 2 GHz Cavity Backed Spiral Antenna OBS-520

0.5 GHz to 2 GHz Cavity Backed Spiral Antenna OBS-520

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$4,435

The OBS-520 is a compact, moderate gain, moderate VSWR, a circularly-polarized cavity-backed spiral antenna designed to transmit and receive in the frequency band of 0.5 GHz to 2.0 GHz.  The antenna exhibits an excellent impedance match and radiation pattern.

SKU: OBS-520 Categories: Cavity Backed Spiral Antenna, RF Antenna

Description

SPEC

Product Overview

The OBS-520 is a compact, moderate gain, moderate VSWR, a circularly-polarized cavity-backed spiral antenna designed to transmit and receive in the frequency band of 0.5 GHz to 2.0 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 bandwidth, extreme flexibility for carrying, and lightweight.

The servant ages 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 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
  • Light Weight
  • small volume
  • Easy package
  • Main lobe width
  • With circular polarization, wide beamwidth
Cavity Backed Spiral Antenna Specifications
Part No. OBS-520
Frequency* 0.5GHz-2.0GHz
Nominal Gain3 dB 3.6 Typ~6.1Typ
VSWR 2.5?1Maximum2.0:1 Typical
Pattern Directional Bean
3 dB Bandwidth 65°Minimum?Typical
10 dB Bandwidth 120° Typical
Input Impedance 50 Ohms Nominal
Input Connector N-female

PDF

Outline

0.5 GHz to 2 GHz Cavity Backed Spiral Antenna OBS-520

Plot

0.5 GHz to 2 GHz Cavity Backed Spiral Antenna OBS-5200.5 GHz to 2 GHz Cavity Backed Spiral Antenna OBS-520

Additional information

Min. Frequency (GHz)

0.5

Max. Frequency (GHz)

2

Gain (dBi)

3.6 Typ~6.1Typ

VSWR

2.5:1

Impedance (Ω)

50

Connection Type

N Female

Polarization

LHCP/RHCP

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