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Dual port aperture coupled MIMO cylindrical dielectric resonator antenna with high isolation for WiMAX application
Author(s) -
Das Gourab,
Sharma Anand,
Gangwar Ravi Kumar
Publication year - 2017
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.21107
Subject(s) - dielectric resonator antenna , wimax , port (circuit theory) , dielectric resonator , mimo , resonator , antenna (radio) , dielectric , aperture (computer memory) , materials science , optics , optoelectronics , electronic engineering , physics , telecommunications , acoustics , engineering , wireless , beamforming
In this article, a dual port aperture coupled MIMO cylindrical dielectric resonator antenna with enhanced isolation is proposed. Dual feeding techniques are used to excite dielectric resonator. These feeding structures are oriented in such a way so that they can produce orthogonal mode in the dielectric resonator. High isolation is observed by generating two orthogonal modes, that is,H E 11 δ yandH E 11 δ xin the dielectric resonator. The fractional bandwidth for port 1 and port 2 is 17.8% (3.1‐3.68 GHz) and 18.4% (3.1‐3.7 GHz), respectively, and isolation between the two ports exceeds −25 dB within the required band. The proposed antenna is simulated, fabricated, and experimentally tested. Good agreements between measured and simulated results are observed. The various diversity performance parameters are also lie within their acceptable limits. Based on presented results, it can be concluded that the presented MIMO antenna is suitable for WiMAX (3.3‐3.6 GHz) applications.