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A compact, ultrawide band planar antenna with modified circular patch and a defective ground plane for multiple applications
Author(s) -
Hota Satyabrat,
Baudha Sudeep,
Mangaraj B. B.,
Yadav Manish V.
Publication year - 2019
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.31867
Subject(s) - ground plane , bandwidth (computing) , omnidirectional antenna , return loss , planar , patch antenna , wimax , microstrip antenna , optics , antenna (radio) , materials science , physics , wireless , engineering , electrical engineering , telecommunications , computer science , computer graphics (images)
A compact ultrawideband planar antenna with modified circular patch and a defective ground plane for multiple applications is presented. The proposed structure consists of a modified circular patch and rectangular parasitic elements with defective ground plane etched on flame retardant (FR‐4) substrate with 50 Ω feed line. Return loss ( S 11 < −10 dB) and the simulated bandwidth of the structure was 2.5 to 12.2 GHz with the fractional bandwidth of 131%. The overall volume of the structure had a compact size of 15 × 19 × 1.6 mm 3 . The gain of the structure is 3.5 dB, and the antenna efficiency is 73.5%. The structure radiated (stable radiations) omnidirectional and bidirectional patterns. Measured and simulated results of Co‐ and Cross‐polarizations. are in relatively good agreement. All these properties shows that the proposed structure is applicable in WiMAX‐band 3.5, 5.5 GHz, WLAN‐band 5.2, 5.8 GHz, X‐band8‐12 GHz, data links to satellites along with various applications in the wireless communication field.