A Slender Fabry-Perot Antenna for High-Gain Horizontally Polarized Omnidirectional Radiation

Ziheng Zhou, Yue Li*, Yijing He, Zhijun Zhang, Pai Yen Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

In this communication, a special Fabry-Perot (FP) cavity antenna with a slender structure is proposed to realize an omnidirectional radiation pattern with horizontal polarization. In our design, a partially reflective strip consisting of periodical slots is placed over the aperture of a long and narrow cavity, thus generating an FP resonance with a uniform electric field distribution along this aperture. As the slot arrays are excited in phase and with a nearly identical amplitude, the proposed slender architecture can provide a horizontally polarized omnidirectional radiation pattern with an enhanced directivity. The proposed antenna is prototyped with a length of 2.95 lambda lambda is the free space wavelength at the center frequency). In well agreement with the simulation results, the experiment verifies that an omnidirectional pattern is achieved over the operating band (2.41-2.5 GHz), with a realized gain of 7.1-8.52 dBi and a gain variation on the E-plane less than 2.3 dB. In virtue of the low-profile all-metal structure, high efficiency (>86%), and enhanced gain, the proposed slender FP antenna is promising for future wireless communication applications.

Original languageEnglish
Article number9119777
Pages (from-to)526-531
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Volume69
Issue number1
DOIs
Publication statusPublished - Jan 2021
Externally publishedYes

Keywords

  • Antenna array
  • Fabry-Perot (FP) antennas
  • antenna directivity
  • antenna radiation pattern

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