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Modified rectangular monopole antenna having frequency band-notch function for UWB applications

✍ Scribed by Yue Song; Yong-Chang Jiao; Fu-Shun Zhang; Li Zhang; Hui Zhao; Zi-Bin Weng

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
510 KB
Volume
50
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A novel modified rectangular monopole antenna having frequency band‐notch function for UWB applications is proposed. To increase the impedance bandwidth, a meandered strip and a parasitical stub are used. By a small patch connected between the modified rectangular patch and a parasitical stub, a frequency‐notched response at 5.8 GHz is obtained. The designed antenna satisfies the voltage standing wave ratio requirement of less than 2.0 in the frequency band between 3 and 13 GHz while showing the band rejection performance in the frequency band of 4.9–6.2 GHz. Simulations and measurements are presented for the proposed antenna. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2309–2311, 2008; Published online in Wiley InterScience (www.interscience.wiley.com).DOI 10.1002/mop.23632

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at different angles. Figure 5(a) shows the AR value of 2.434 GHz with L t ϭ 12 mm against the elevation angle () with different azimuthal angles of ϭ 0°and 90°. It can be noted that the range of elevation angles from Ϫ55°to 62°has a smaller 3-dB AR value at ϭ 0°. Correspondingly, in Figure 5(b), as