Compact UWB Filtering-Antenna with Controllable WLAN Band Rejection Using Defected Microstrip Structure

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Date
2018-04
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Mark
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Společnost pro radioelektronické inženýrství
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Abstract
An ultra-wideband (UWB) filtering-antenna with controllable band notch is reported in this paper. The filtering-antenna consists of a modified monopole antenna and defected microstrip structure (DMS). The monopole antenna is modified using microstrip transition in the feedline and block with a triangular-shape slot on each side of the circular patch to produce wider impedance bandwidth with better return loss. The DMS is constructed using U-shaped slot etched on the feedline to provide band notch and remove WLAN band (5.1-5.8 GHz). A switch is employed in the DMS to control the created band notch. The measured results show that the proposed design exhibits a wide impedance bandwidth with controllable WLAN band rejection, realized peak gain of 4.85 dB and omnidirectional radiation pattern. Therefore, the proposed design is suitable for UWB applications.
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Radioengineering. 2018 vol. 27, č. 1, s. 110-117. ISSN 1210-2512
https://www.radioeng.cz/fulltexts/2018/18_01_0110_0117.pdf
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Peer-reviewed
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en
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Creative Commons Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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