Abstract
A new wideband and enhanced gain Fabry-Pérot cavity antenna is presented in this letter. The Fabry-Pérot cavity is established between a single-layer metamaterial-based partially reflective surface (PRS) and a simple feeding slot antenna. The unit cell of the PRS consists of printed and etched square rings on both sides of the superstrate. A 6 × 6 array of the unit cells is optimized to produce a positive reflection phase gradient required for the gain enhancement. Simulated results of the designed Ku-band antenna demonstrate an impedance bandwidth of 13.1-15.3 GHz (15.5%) with a gain enhancement up to 8.2 dB (i.e., 150% gain increase above the feeding antenna) and a 3 dB radiation bandwidth of 18.7%. Experimentally observed reflection and radiation responses of the fabricated prototype validate the simulated results.
Original language | English |
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Article number | 8770090 |
Pages (from-to) | 1771-1774 |
Number of pages | 4 |
Journal | IEEE Antennas and Wireless Propagation Letters |
Volume | 18 |
Issue number | 9 |
DOIs | |
State | Published - Sep 2019 |
Bibliographical note
Publisher Copyright:© 2002-2011 IEEE.
Keywords
- Fabry-Pérot antenna
- high gain
- partially reflective surface (PRS)
- wideband
ASJC Scopus subject areas
- Electrical and Electronic Engineering