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.

Downloads

Download data is not yet available.

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.

Downloads

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

Articles