Bandwidth enhancement technique with vertically slotted sidewalls in capacitive coupled antenna | Zendy

Li Mei | Zendy; Che Wenquan | Zendy; Lau Puiyi | Zendy; Yung Edward K. N. | Zendy

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Bandwidth enhancement technique with vertically slotted sidewalls in capacitive coupled antenna

Author(s) -

Li Mei,

Che Wenquan,

Lau Puiyi,

Yung Edward K. N.

Publication year - 2008

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.23066

Subject(s) - bandwidth (computing) , return loss , radiation pattern , antenna gain , electrical engineering , microwave , antenna measurement , engineering , capacitive sensing , electronic engineering , antenna factor , acoustics , optics , antenna (radio) , physics , telecommunications

A novel capacitive coupled antenna has been introduced in this article; one circular ground with vertical‐slots sidewall is used to improve the bandwidth significantly. The antenna operates at 3 GHz, the impedance bandwidth at 10‐dB return loss is about 48.2%, and the gain of the butterfly radiation pattern is 3.8 dB. After introduction of the ground with vertical‐slots sidewall, the bandwidth of the antenna has been improved to 78.2%, about 62% bandwidth enhancement; the gain of this antenna is about 6.0 dB. Both numerical simulations and experimental data are presented, good agreement can be observed within. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 341–345, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23066

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