Cobham Antennas Systems 500 - 3,000 MHz Ultra Wideband Antenna, DIRECTIONAL, Planar Spiral PSA 75301R/170

The PSA 75301R/170 is a directional planar spiral antenna designed for test and measurement applications, operating within a frequency range of 500 MHz to 3.0 GHz. It features a gain of 1 dBiC at 500 MHz and 4-6 dBiC across the 1-3 GHz range, with a right-hand circular polarization. The antenna has an approximate beamwidth of 70° in the azimuth and 90° in the elevation, with an axial ratio of 1 to 3 dB typical. The voltage standing wave ratio (VSWR) is specified as a maximum of 2:1 over the 750 MHz to 3 GHz range and 2.5:1 over the 500 MHz to 750 MHz range. It can handle a power rating of 2-5 W and provides a front-to-back ratio of 15 to 20 dB. In terms of mechanical specifications, the antenna has a mass of 1 kg and operates within a temperature range of -20° to +50°C. It is finished in gloss white and has a wind loading capacity of 7.3 kg at 100 mph. This antenna is suitable for various applications, including security, and is compact in design.