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2016-10-22
Design of a UWB Filtering Antenna with Defected Ground Structure
By
Progress In Electromagnetics Research Letters, Vol. 63, 65-70, 2016
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.
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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