On the Efficiency of Miniaturized 360° Beam-Scanning Antenna

TitleOn the Efficiency of Miniaturized 360° Beam-Scanning Antenna
Publication TypeConference Paper
Year of Publication2019
AuthorsZandamela, AA, Schraml, K, Jantarachote, V, Heberling, D, Ammann, MJ, Narbudowicz, A
Conference NameEuropean Conference on Antennas and Propagation - EuCAP
Conference Start Date31/03/2019
Conference LocationKrakow, PL
Abstract

The efficiency and beam-scanning performance of a compact beam reconfigurable antenna are presented. The proposed design achieves flexible switchless bidirectional radiation pattern of 360° in azimuth by using phase variations between its 3 ports. Antenna miniaturization is performed by dielectric loading; designs are presented for 4 different permittivity values, shifting the resonant frequency from 2.46GHz to 2.16GHz, 1.95GHz, and 1.8GHz. The simulated results show good linear beam-scanning despite a decrease in antenna efficiency.