NASA NTRS · 19880016363
A microstrip array feed for MSAT spacecraft reflector antenna
Abstract
An L-band circularly polarized microstrip array antenna with relatively wide bandwidth has been developed. The array has seven subarrays which form a single cluster as part of a large overlapping cluster reflector feed array. Each of the seven subarrays consists of four uniquely arranged linearly polarized microstrip elements. A 7.5 percent impedance (VSWR less than 1.5) as well as axial ratio (less than 1 dB) bandwidths have been achieved by employing a relatively thick honeycomb substrate with special impedance matching feed probes.
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Huang, John. 1988-05-01. A microstrip array feed for MSAT spacecraft reflector antenna. https://ntrs.nasa.gov/citations/19880016363
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