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A circular-disc monopole antenna with band-rejection function for ultrawideband application

✍ Scribed by Chow-Yen-Desmond Sim; Wen-Tsan Chung; Ching-Her Lee

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
567 KB
Volume
51
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

The numerical design method for a microstrip‐fed circular‐disc monopole (CDM) antenna operating within the ultrawideband (UWB) from 3.1 to 10.6 GHz is initially studied. By simply embedding a pair of U‐shaped slots into the ground plane, a band‐rejection (band‐notch) function at around 5 GHz is achieved. For impedance matching and fine tuning of this proposed antenna, a small rectangular slit is inserted at the top centre of the ground plane. Except within the rejection band, the gain and time‐domain characteristics of this antenna has successfully demonstrated that it is applicable to any high data rate short‐range wireless communication system that requires a stable signal transmission in the UWB application. The performances of a common UWB CDM antenna without band‐rejection function and a similar one with a slot loaded in the radiating circular patch are also investigated and compared with the proposed antenna. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1607–1613, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24379

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