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Compact planar ultrawideband wide‐slot antenna with an assembled band‐notched structure
Author(s) -
Zeng Wenbo,
Zhao Jia,
Wu Qiqi
Publication year - 2012
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.26864
Subject(s) - stub (electronics) , coplanar waveguide , planar , slot antenna , ground plane , microwave , printed circuit board , impedance matching , bandwidth (computing) , optics , radiation pattern , materials science , electrical impedance , antenna (radio) , optoelectronics , electrical engineering , physics , engineering , telecommunications , computer science , computer graphics (images)
A simple and compact wide‐slot antenna and its extended band‐notched design are presented.The proposed antenna is etched on a piece of FR4 printed circuit board with an overall size of 30 × 28 × 0.8 mm 3 . It consists of a polygonal wide slot, a coplanar waveguide feeding line, and a circular metal ring. The antenna prototype achieves good impedance matching, a constant gain, and stable radiation patterns over an operating bandwidth of 3.1–10.6 GHz. Furthermore, after the addition of an assembled band‐notch structure, which is formed by a pair of inverted L‐shaped slits embedded in the ground plane and a T‐shaped stub inside the metal ring, the proposed antenna exhibits band‐notched characteristics and achieves a much sharper notch band at 5–6 GHz. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1654–1659, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26864