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A multi-mode resonator-based UWB bandpass filter with wide stopband

Published online by Cambridge University Press:  01 June 2015

Ting Zhang
Affiliation:
School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China
Fei Xiao*
Affiliation:
School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China
Xiaohong Tang
Affiliation:
School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China
Lei Guo
Affiliation:
School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China
*
Corresponding author: F. Xiao Email: fxiao316@gmail.com or fxiao@uestc.edu.cn

Abstract

In this paper, a novel multi-mode resonator is presented, which is formed by cascading several open-circuited transmission line sections with a coupled-line section. Owing to its symmetry, even- and odd-mode analysis methods are applied to analyze its resonance characteristic. Based on this resonator, a microstrip ultra-wide bandwidth (UWB) bandpass filter is designed, fabricated, and measured. The simulated and measured results show that its bandwidth can cover the desired UWB. Return loss in passband is better than −14 dB. This filter is featured by good selectivity and wide stopband. Stopband suppression as low as −40 dB can be achieved within frequency range from 12 to 16 GHz.

Type
Research Papers
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

REFERENCES

[1]“Revision of Part 15 of the Commission's Rules Regarding Ultra-Wideband Transmission System,” FCC, Washington, DC, Tech. Rep. ET-Docket, April 2002, 98–153.Google Scholar
[2] Zhu, L.; Sun, S.; Menzel, W.: Ultra-wideband (UWB) bandpass filters using multiple-mode resonator. IEEE Microw. Wireless Compon. Lett., 15 (2005), 796798.Google Scholar
[3] Zhu, H.; Chu, Q.X.: Compact ultra-wideband (UWB) bandpass filter using dual-stub-loaded resonator (DSLR). IEEE Microw. Wireless Compon. Lett., 23 (2013), 527529.CrossRefGoogle Scholar
[4] Deng, H.W.; Zhao, Y.J.; Zhang, L.; Zhang, X.S.; Gao, S.P.: Compat quintuple-mode stub-loaded resonator and UWB filter. IEEE Microw. Wireless Compon. Lett., 20 (2010), 438440.Google Scholar
[5] Chu, Q.X.; Wu, X.H.; Tian, X.K.: Novel UWB bandpass filter using stub-loaded multiple-mode resonator. IEEE Microw. Wireless Compon. Lett., 21 (2011), 403405.CrossRefGoogle Scholar
[6] Zhang, Z.X.; Xiao, F.: An UWB bandpass filter based on a novel type of multi-mode resonator. IEEE Microw. Wireless Compon. Lett., 22 (2012), 506508.CrossRefGoogle Scholar
[7] Li, X.P.; Ji, X.: Novel compact UWB bandpass filters design with cross-coupling between λ/4 short-circuited stubs. IEEE Microw. Wireless Compon. Lett., 24 (2014), 2325.CrossRefGoogle Scholar
[8] Wang, H.; Zheng, Y.Y.; Kang, W.; Miao, C.; Wu, W.: UWB bandpass filter with novel structure and super compact size. Electron. Lett., 48 (2012), 10681069.Google Scholar