Dual-slot feeding technique for broadband Fabry-Perot cavity antennas

Konstantinos Konstantinidis*, Alexandros P. Feresidis, Peter S. Hall

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)
254 Downloads (Pure)


A dual-slot feeding technique is proposed for broadband multi-layer periodic Fabry-Perot cavity (FPC) antennas achieving enhanced directivity as well as broadband radiation and matching performance. To demonstrate the feeding technique, two FPC antennas are presented formed by two- and three-layer periodic partially reflective surfaces (PRSs) placed in front of a ground plane. Two optimised microstrip-fed rectangular slots of different lengths etched on the ground plane are used to feed the multi-layer cavity antennas and significantly enhance the antenna bandwidth as well as the directivity performance. Measurements of a fabricated three-layer PRS antenna prototype are presented exhibiting 19 dBi gain with 16% fractional bandwidth and validating the simulation results.

Original languageEnglish
Pages (from-to)861-866
Number of pages6
JournalMicrowaves, Antennas & Propagation
Issue number9
Publication statusPublished - 18 Jun 2015

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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