A compact pattern reconfigurable antenna employing shorted quarterwave patch antennas

Çelik F. T., ALATAN L., AYDIN ÇİVİ H. Ö.

Turkish Journal of Electrical Engineering and Computer Sciences, vol.30, no.6, pp.2179-2189, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 6
  • Publication Date: 2022
  • Doi Number: 10.55730/1300-0632.3932
  • Journal Name: Turkish Journal of Electrical Engineering and Computer Sciences
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Applied Science & Technology Source, Compendex, Computer & Applied Sciences, INSPEC, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.2179-2189
  • Keywords: antenna design, beam steering, conical beam, Reconfigurable antenna, shorted patch
  • Middle East Technical University Affiliated: Yes

Abstract

In this study, a compact pattern reconfigurable antenna structure is proposed. The proposed antenna is a half-wave square microstrip patch antenna divided into two quarter-wave antenna portions by a conducting wall. This wall forces potential zero at the connection point; therefore, it separates the antenna into two independent quarterwave portions. Pattern reconfiguration is achieved by separate feeding of the quarter-wave portions. Phase difference between excitations of antenna ports result in variation at the maximum beam direction. Hence, pattern reconfiguration is achieved. Within such a compact antenna, beam steering up to 400 is achieved.