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Investigation on dual‐band equilateral triangular shaped dielectric resonator antennas for WLAN applications
Author(s) -
P. Anoop,
Bhattacharjee Ratnajit
Publication year - 2021
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.22672
Subject(s) - multi band device , antenna (radio) , dielectric resonator antenna , equilateral triangle , resonator , dielectric , directional antenna , dielectric resonator , excited state , coaxial , physics , materials science , electrical engineering , optoelectronics , engineering , atomic physics , geometry , mathematics
In this article, two configurations of dual‐band equilateral triangular dielectric resonator antennas (ETDRAs) for WLAN applications are proposed namely, configuration‐I and configuration‐II. The configuration‐I uses single ETDRA for dual‐band operation; whereas, configuration‐II includes two ETDRAs to operate as a dual‐band antenna. Both the antenna configurations, which uses 99.7% alumina material having a dielectric constant of ε r = 9.9 , are excited to operate in the bands of 2.4 to 2.5 GHz and 5.75 to 5.85 GHz. The antennas are excited using a conventional coaxial feed to have a simple feeding mechanism. Prototypes of both the antenna configurations are fabricated and measured. The radiation characteristics of the antennas are discussed. The circuit analysis for the proposed configurations of the dual‐band ETDRA is also performed and an appropriate equivalent circuit for each dual‐band ETDRA is presented. Further, the performance of the proposed configurations of the dual‐band antennas are also compared with other dual‐band DRAs reported in the literature.