Pattern Reconfiguration of Microstrip Antennas by Controlling Slots in Its Ground Plane

Gök Ç., Alatan L.

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022, Colorado, United States Of America, 10 - 15 July 2022, pp.1196-1197 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/ap-s/usnc-ursi47032.2022.9887356
  • City: Colorado
  • Country: United States Of America
  • Page Numbers: pp.1196-1197
  • Keywords: Microstrip antenna, pattern reconfigurable antenna, RF-MEMS switches
  • Middle East Technical University Affiliated: Yes

Abstract

© 2022 IEEE.In this work, a pattern reconfigurable antenna with improved pattern diversity is proposed. The antenna is formed by placing a circular ring around a circular microstrip patch antenna and excited by using two feeds. The in-phase and out-of-phase excitation of these feeds provides conical beam and broadside radiation, respectively. Slots are introduced to the ground plane of the antenna to steer the main radiation direction in broadside radiation mode and to obtain asymmetric radiation in conical beam mode. Consequently, the pattern diversity of the two-mode antenna is improved.