Wideband circularly polarized Spidron fractal slot antenna with a grooved dielectric resonator

Wideband circularly polarized Spidron fractal slot antenna with a grooved dielectric resonator

A single-feed wideband circularly polarized Spidron fractal slot antenna with a grooved dielectric resonator is presented. To realize a wideband axial ratio, the circular polarizations of both a Spidron fractal slot and a grooved rectangular dielectric resonator are merged. The proposed antenna is e...

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Bibliographic Details
Published in:Journal of electromagnetic waves and applications Vol. 29; no. 14; pp. 1942 - 1951
Main Authors: Lee, J.M., Kwon, G., Song, C.M., Lee, K.-Y., Yang, Y., Hwang, K.C.
Format: Journal Article
Language:English
Published: Taylor & Francis 22-09-2015
Subjects:
circular polarization
dielectric resonator
slot antenna
Spidron fractal
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Summary:A single-feed wideband circularly polarized Spidron fractal slot antenna with a grooved dielectric resonator is presented. To realize a wideband axial ratio, the circular polarizations of both a Spidron fractal slot and a grooved rectangular dielectric resonator are merged. The proposed antenna is excited by a simple 50-Ω microstrip feed line which is located underneath the Spidron fractal slot. A prototype of the proposed antenna is fabricated and tested. The measured −10 dB reflection coefficient bandwidth and 3 dB axial ratio bandwidth are 40.33% (1.94-2.92 GHz) and 23.75% (2.30-2.92 GHz), respectively. The measured peak gain of the antenna is 4.23 dBic.
ISSN:0920-5071
1569-3937
DOI:10.1080/09205071.2015.1071207