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A Miniaturized ZOR antenna with enhanced bandwidth for WiMAX applications
Author(s) -
Mishra Naveen,
Chaudhary Raghvendra Kumar
Publication year - 2016
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29494
Subject(s) - ground plane , patch antenna , monopole antenna , microstrip antenna , optics , omnidirectional antenna , radiation pattern , bandwidth (computing) , microwave , j pole antenna , stripline , antenna efficiency , dipole antenna , engineering , electrical engineering , physics , antenna (radio) , telecommunications
In this article, a compact zeroth‐order resonance (ZOR) antenna with extended bandwidth is presented. The proposed antenna consists of a rectangular and semicircular patch separated by gap G which is liable for initiating ZOR mode. The semicircular patch and ground planes are connected by a thin stripline, hence, via less coplanar metamaterial structure. The proposed antenna offers measured fractional bandwidth of 23.64% at ZOR frequency (f ZOR = 3.60 GHz) with an average peak gain of 2.26 dB with 95.89% radiation efficiency over entire working band. The proposed antenna shows the overall footprint area of 0.276 λ 0 × 0.129 λ 0 , where λ 0 is the free space wavelength centered at 3.60 GHz. It also offers dipole like pattern in xz‐plane and omnidirectional pattern in yz‐plane at ZOR frequency. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:71–75, 2016