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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2016-10-22
Design of a UWB Filtering Antenna with Defected Ground Structure
By
Rong Li,

    Dr. Rong Li

    University of Electronic Science and Technology of China

    China

    Homepage

Peng Gao

    Prof. Peng Gao

    University of Electronic Science and Technology of China

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 63, 65-70, 2016
doi:10.2528/PIERL16081301 | Google Scholar

Abstract
In this paper, a band-notched UWB filtering antenna with defected ground structure (DGS) is presented. This defected ground structure as a lowpass filter (LPF) plays a role in filtering unwanted band. The DGS is applied to suppress the upper passband spectrum of the proposed antenna. A U-shaped slot line etched in the feeding line creates a single band-notched characteristic in 3.3-3.83 GHz for WIMAX to avoid potential interference with the existing system. The measured return loss has a wide fractional bandwidth up to 127.6%, which covers a range of 2.43-11 GHz, with the return loss higher than 10 dB except notch band and less than 2 dB up to 16 GHz. The measured and simulated results reveal that the antenna has good upper stopband performance and consistent quasi-omnidirectional radiation pattern within the UWB frequency range.
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Citation
Rong Li, and Peng Gao, "Design of a UWB Filtering Antenna with Defected Ground Structure," Progress In Electromagnetics Research Letters, Vol. 63, 65-70, 2016.
doi:10.2528/PIERL16081301
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