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Performance analysis of a hybrid dielectric resonator antenna in frequency and time domains
Author(s) -
Bhattacharya Anamiya,
Dasgupta Bidisha,
Jyoti Rajeev
Publication year - 2019
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.21886
Subject(s) - standing wave ratio , microstrip antenna , dielectric resonator antenna , microstrip , resonator , physics , patch antenna , bandwidth (computing) , optics , dielectric , radiator (engine cooling) , acoustics , electrical impedance , antenna (radio) , optoelectronics , telecommunications , computer science , quantum mechanics
This article presents a compact hybrid X‐band radiator, by combining the multiple resonances of two resonating and radiating structures, namely (a) a cylindrical dielectric resonator (CDR) and (b) a new type of slot geometry along with a U‐shaped microstrip feedline. Excitation of a few higher order modes in CDR structure is also observed and further investigated. The detailed performance analysis of the proposed geometry has been carried out both in frequency and time domains. Some design guidelines have been formulated which enable the design of the antenna for different bands. The proposed structure offers 46.3% ( S 11 ≤ −10 dB and Voltage Standing Wave Ratio (VSWR) < 2) (measured) impedance bandwidth and about 4.5 dBi peak gain. The proposed antenna has the potential to be an ideal candidate for X‐band sensor applications.