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On the Efficiency of Miniaturized 360° Beam-Scanning Antenna

: Zandamela, A.; Schraml, K.; Jantarachote, V.; Chalermwisutkul, S.; Heberling, D.; Ammann, M.J.; Narbudowicz, A.

13th European Conference on Antennas and Propagation, EuCAP 2019
Piscataway, NJ: IEEE, 2019
ISBN: 978-88-907018-8-7
ISBN: 978-1-5386-8127-5
European Conference on Antennas and Propagation (EUCAP) <13, 2019, Krakow>
European Commission EC
H2020; 713567; EDGE
Cutting Edge Training - Cutting Edge Technology
Fraunhofer FHR ()

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