Novel Microstrip Ultra-Wideband Bandpass Filter Using Radial-Stub-Loaded Structure

Authors

  • Xida Deng EHF Key Laboratory of Science University of Electronic Science and Technology of China (UESTC), Chengdu, 611731, China
  • Kai Da Xu Institute of Electromagnetics and Acoustics & Department of Electronic Science Xiamen University, Xiamen 361005, China
  • Zhigang Wang EHF Key Laboratory of Science University of Electronic Science and Technology of China (UESTC), Chengdu, 611731, China
  • Bo Yan EHF Key Laboratory of Science University of Electronic Science and Technology of China (UESTC), Chengdu, 611731, China

Keywords:

Bandpass filter, microstrip, radial-stubloaded, ultra-wideband

Abstract

A novel planar ultra-wideband (UWB) bandpass filter (BPF) using radial-stub-loaded resonator is proposed, where the resonator consists of three radial stubs, one located in the middle and two symmetrically at both sides. This radial-stub-loaded structure situates the first four resonant modes in the UWB passband (3.1~10.6 GHz) and makes the fifth resonant mode far away from this passband. To enhance the coupling degree, two interdigital coupled feed lines are utilized in this UWB filter. Finally, a UWB BPF with wide upper-stopband and sharp upper rejection skirt has been realized and its design steps have been also presented. The measured and full-wave simulated results of the proposed filter are in good agreement.

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References

U. F. C. Commission, “FCC revision of part 15 of the commission's rules regarding ultra-wideband transmission systems: first report and order,” Technical Report, Feb. 2002.

L. Zhu, S. Sun, and W. Menzel, “Ultra-wideband (UWB) bandpass filters using multiple-mode resonator,” IEEE Microwave and Wireless Components Letters, vol. 15, pp. 796-798, 2005.

R. Li and L. Zhu, “Compact UWB bandpass filter using stub-loaded multiple-mode resonator,” IEEE Microwave and Wireless Components Letters, vol. 17, pp. 40-42, 2007.

S. W. Wong and L. Zhu, “EBG-embedded multiple-mode resonator for UWB bandpass filter with improved upper-stopband performance,” IEEE Microwave and Wireless Components Letters, vol. 17, pp. 421-423, 2007.

S. W. Wong and L. Zhu, “Implementation of compact UWB bandpass filter with a notch-band,” IEEE Microwave and Wireless Components Letters, vol. 18, pp. 10-12, 2008.

S. W. Wong and L. Zhu, “UWB bandpass filters using short-circuited shunt stub-embedded multiple-mode resonators,” Microwave and Optical Technology Letters, vol. 51, pp. 2556-2559, 2009.

S. Oh, B. Shin, J. Jeong, Y. S. Kim, and J. Lee, “UWB bandpass filter using dual stepped impedance stub loaded resonators,” Microwave and Optical Technology Letters, vol. 56, pp. 448- 450, 2014.

L. Y. Chen, C. H. Lee, and C. I. G. Hsu, “Novel UWB BPF design using modified trisection MMR,” Microwave and Optical Technology Letters, vol. 50, pp. 2904-2907, 2008.

Ansoft High Frequency Structural Simulator (HFSS), 12th ed., Framingham, MA, USA, Ansoft Corp., 2006.

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Published

2021-07-30

How to Cite

[1]
Xida Deng, Kai Da Xu, Zhigang Wang, and Bo Yan, “Novel Microstrip Ultra-Wideband Bandpass Filter Using Radial-Stub-Loaded Structure”, ACES Journal, vol. 32, no. 12, pp. 1148–1151, Jul. 2021.

Issue

2017: Vol 32 Iss 12

Section

General Submission