CIRCULARLY POLARIZED SINGLE FEED HEMISPHERICAL DIELECTRIC RESONATOR ANTENNA FOR WI-MAX APPLICATIONS | Zendy

Arunodayam Radhakrishnan Anu | Zendy; P Abdulla | Zendy; P. M. Jasmine | Zendy; Thulaseedharan Kodiyattuvila Rekha | Zendy

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CIRCULARLY POLARIZED SINGLE FEED HEMISPHERICAL DIELECTRIC RESONATOR ANTENNA FOR WI-MAX APPLICATIONS

Author(s) -

Arunodayam Radhakrishnan Anu,

P Abdulla,

P. M. Jasmine,

Thulaseedharan Kodiyattuvila Rekha

Publication year - 2020

Publication title -

progress in electromagnetics research m

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.216

H-Index - 31

ISSN - 1937-8726

DOI - 10.2528/pierm20022401

Subject(s) - dielectric resonator antenna , antenna (radio) , dielectric , turnstile antenna , resonator , dielectric resonator , materials science , optics , antenna feed , optoelectronics , physics , coaxial antenna , telecommunications , microstrip antenna , computer science

A concentric circular slots coupled hemispherical dielectric resonator antenna fed by a modified microstrip line for circular polarization is investigated. By adjusting the position of the hemispherical dielectric resonator antenna and the slots properly, the resonances of the slot and the antenna are merged to obtain wider axial ratio bandwidth. Parametric studies have been done on the effect of changing the DRA position on impedance band and axial ratio band. The circular polarization achieved by the antenna offers a very good 10 dB impedance bandwidth of 27.379% and a 3dB axial ratio bandwidth of 640 MHz. The maximum gain in the operational band is 7.3 dBi. The antenna is suitable for Wi-Max applications.

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