Dual High-Selectivity Band-Notched Ultra-Wideband Filter with Improved Out-of-Band Rejection

Authors

  • Ying Jiang Guo EHF Key Lab of Science, University of Electronic Science and Technology of China, Chengdu, 611731, China
  • Xiao Hong Tang EHF Key Lab of Science, University of Electronic Science and Technology of China, Chengdu, 611731, China
  • Kai Da Xu Department of Electronic Science, Xiamen University, Xiamen, 361005, China ,Shenzhen Research Institute of Xiamen University, Shenzhen 518057, China

Keywords:

Band-notched filter, high frequency selectivity, improved out-of-band rejection, ultrawideband filter

Abstract

A novel microstrip ultra-wideband (UWB) filter with dual notched bands is presented. By placing a simple dual-mode resonator having two symmetrical outer high-impedance lines beside the UWB filter, two controllable rejection bands are created, each of which features two resonant modes and high frequency selectivity. Defected ground structure techniques (DGS) is applied to realize wide out-of-band attenuation. To explain band-notched operating mechanism, the parametric studies and equivalent circuit of the proposed structure are presented. The experimental results agree well with the predicted results declaring the advantages of the proposed structure with high-selectivity widebandwidth notched bands and improved out-of-band rejection.

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References

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Published

2021-08-10

How to Cite

[1]
Ying Jiang Guo, Xiao Hong Tang, and Kai Da Xu, “Dual High-Selectivity Band-Notched Ultra-Wideband Filter with Improved Out-of-Band Rejection”, ACES Journal, vol. 31, no. 09, pp. 1072–1078, Aug. 2021.

Issue

2016: Vol 31 Iss 9

Section

General Submission