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

作者:Song Yue*; Jiao Yong Chang; Zhang Fu Shun; Zhang Li; Zhao Hui; Weng Zi Bin
来源:Microwave and Optical Technology Letters, 2008, 50(9): 2309-2311.
DOI:10.1002/mop.23632

摘要

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.