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Circularly polarized rectangular dielectric resonator antenna fed by a cross aperture coupled spiral microstrip line
Author(s) -
Kumari Reena,
Gangwar Ravi Kumar
Publication year - 2018
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21200
Subject(s) - optics , microstrip antenna , dielectric resonator antenna , turnstile antenna , microstrip , physics , axial ratio , circular polarization , patch antenna , spiral antenna , antenna (radio) , aperture (computer memory) , antenna factor , coaxial antenna , resonator , telecommunications , acoustics , engineering
In this article, a circularly polarized rectangular dielectric resonator antenna fed by a cross‐aperture coupled spiral microstrip line is investigated. A quarter wavelength section of microstrip line is positioned between each arm of the cross slot in a spiral form to generate the circular polarization. The prototype of proposed antenna is fabricated and tested. The measured | S 11 | and 3‐dB axial ratio frequency range is 31.74%, (2.65–3.65) GHz and 20%, (3.12–3.74) GHz, respectively and the measured total gain and left handed circularly polarized gain are 4.5 and 3.1 dB, respectively. The proposed antenna may be suitable for WiMAX applications.