A Wideband Circularly Polarized Slot Antenna Backed by a Frequency Selective Surface

This paper presents the design of a coplanar waveguide (CPW)-fed single-layer wideband circularly polarized (CP) planar slot antenna backed by a frequency selective surface (FSS). The planar slot antenna is fed with a stub-loaded modified CPW feed line to tune and optimize the impedance bandwidth. T...

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Bibliographic Details
Published inJournal of Electromagnetic Engineering and Science Vol. 19; no. 3; pp. 166 - 171
Main Authors Rajanna, Puneeth Kumar Tharehalli, Rudramuni, Karthik, Kandasamy, Krishnamoorthy
Format Journal Article
LanguageEnglish
Published 한국전자파학회JEES 01.07.2019
The Korean Institute of Electromagnetic Engineering and Science
한국전자파학회
Subjects
Circular Polarization
Frequency Selective Surface
Slot Antenna
전자/정보통신공학
Slot Antenna
Circular Polarization
Frequency Selective Surface
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Summary:This paper presents the design of a coplanar waveguide (CPW)-fed single-layer wideband circularly polarized (CP) planar slot antenna backed by a frequency selective surface (FSS). The planar slot antenna is fed with a stub-loaded modified CPW feed line to tune and optimize the impedance bandwidth. The corners of the square slot antenna are perturbed to produce two orthogonal degenerate modes required for a wideband CP operation. The FSS layer is placed under the slot antenna to increase the gain and axial ratio bandwidth. The measured results of the proposed antenna provide an impedance bandwidth of 63.22% and an axial ratio bandwidth of 31.14% with a peak gain of 4.87 dB. The proposed antenna has a simple geometry, a wide CP bandwidth, and a good gain.
ISSN:2671-7255
2234-8409
2671-7263
2234-8395
DOI:10.26866/jees.2019.19.3.166