volume | PIER Journals

2010-02-09

Design of Novel Wideband Monopole Antenna with a Tunable Notched-Band for 2.4 GHz WLAN and UWB Applications

Ya-Bing Yang,

Dr. Ya-Bing Yang

Xidian University

China

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Fu-Shun Zhang,

Dr. Fu-Shun Zhang

Xidian University

China

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Fan Zhang,

Dr. Fan Zhang

National Key Laboratory of Antennas and Microwave Technology

Xidian University

China

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Li Zhang,

Dr. Li Zhang

National Key Laboratory of Antennas and Microwave Technology

Xidian University

China

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Yong-Chang Jiao

Dr. Yong-Chang Jiao

Xidian University

China

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Progress In Electromagnetics Research Letters, Vol. 13, 93-102, 2010

doi:10.2528/PIERL09121203

Abstract

In this article, a novel wideband planar monopole antenna for applications in 2.4 GHz WLAN and UWB bands is presented and investigated. The proposed antenna is composed of a gourd-like radiation element fed by a 50 Ohm microstrip line and a step-shaped ground plane. A pair of slot lines is etched symmetrically on the ground plane to obtain the 5 GHz band-notched characteristic, and the notched band can be tuned. The proposed antenna is successfully simulated, designed, and measured. The measured results agree reasonably with the simulated ones. According to the measured results, the proposed antenna yields a wide bandwidth ranging from 2.2 to 11 GHz for VSWR less than 2, except the notched band of 5.1-6.2 GHz for 5 GHz WLAN. Moreover, it exhibits nearly omnidirectional radiation patterns, stable gain, and small group delay variation across the operation band, which meets the requirements of 2.4 GHz WLAN and UWB applications.

Citation

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Ya-Bing Yang, Fu-Shun Zhang, Fan Zhang, Li Zhang, and Yong-Chang Jiao, "Design of Novel Wideband Monopole Antenna with a Tunable Notched-Band for 2.4 GHz WLAN and UWB Applications," Progress In Electromagnetics Research Letters, Vol. 13, 93-102, 2010.
doi:10.2528/PIERL09121203

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