Spiral antennas have high spectral efficiency, low gain, and are circularly
polarized. Spiral antennas provide frequency-independent performance over wide
operational bandwidths with compact form-factor and superior performance making it
ideal for use in RF Shield Boxes.
Spiral antennas are widely used in the defense industry for sensing applications, where
very wideband antennas that do not take up much space are needed. Spiral antenna
arrays are used in military aircraft in the 1-18 GHz range. Other applications of spiral
antennas include GPS, where it is advantageous to have RHCP (right hand circularly
polarized) antennas.
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