Compact Fabry-Perot Antenna With Wide 3 dB Axial Ratio Bandwidth Based on FSS and AMC Structures

The proposed antenna combines a conventional patch with an artificial magnetic conductor (AMC) ground plane and a frequency selective surface (FSS) superstrate with the height of 0.35 λ 0 (at f = 8.5 GHz) from the feed antenna. In this structure, to create circularly polarized waves, a FSS superstra...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2020-08, Vol.19 (8), p.1326-1330
Main Authors: Fakhte, Rasoul, Aryanian, Iman
Format: Article
Language:English
Subjects:
Antenna arrays
Antenna measurements
Antennas
Axial ratio (AR)
Bandwidth
Bandwidths
Broadband
Circular polarization
Conductors
Fabry–Perot
Frequency selective surfaces
Ground plane
High gain
Microwave power beaming
patch
Reflection
Reflector antennas
Satellite communications
superstrate
unit cell
Wireless communications
Wireless power transmission
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Summary:The proposed antenna combines a conventional patch with an artificial magnetic conductor (AMC) ground plane and a frequency selective surface (FSS) superstrate with the height of 0.35 λ 0 (at f = 8.5 GHz) from the feed antenna. In this structure, to create circularly polarized waves, a FSS superstrate composed of an array of quasi-crescent shaped unit cells is used. In addition, to compact the antenna cavity, the AMC ground plane with the reflection phase of zero is utilized. Moreover, for further improvement in the antenna 3 dB axial ratio (AR) bandwidth (BW), an array of diagonal rectangular slots is used in the AMC ground plane. The proposed antenna presents an appropriate 3 dB AR in the whole BW (20%) of antenna with the gain up to 16 dBi. Due to high gain, wideband axial ratio, fabrication simplicity, and compact structure, this antenna is a promising candidate for X -band satellite communication, radar, wireless communication, and microwave power transmission.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2020.2999745