Abstract
AbstractIn this article, an improved double‐sided printed compact UWB monopole planar radiator and a method for improving its bandwidth for ultra‐wideband application is suggested. Results show that using right angled triangular slots on the partial ground plane under the microstrip feed line (a patch radiator with a compact dimension of 14.5 × 14.75 mm2) is achieved a bandwidth of 14.3 GHz. It varies from 3.2 to 17.5 GHz for S11 < −10 dB (VSWR < 2) with center frequency of 10.35 GHz, whereas the measured bandwidth 14 GHz varies from 3.1 to 17.1 GHz. Moreover, it has a stable radiation pattern across the whole bandwidth and attains an average gain of 4.2 dBi and highest gain of 6.4 dBi at 12.5 GHz.
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