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A wideband power divider with bandpass response

Published online by Cambridge University Press:  20 April 2015

Cong Tang ,
Xianqi Lin ,
Yong Fan  and
Kaijun Song
Cong Tang
Affiliation:
EHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Xianqi Lin*
Affiliation:
EHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Yong Fan
Affiliation:
EHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Kaijun Song
Affiliation:
EHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
*
Corresponding author: X. Lin Email: xqlin@uestc.edu.cn
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Abstract

In this paper, a new configuration embedded with two filters and one resistor is proposed, which has the dual function of power splitting and filtering. The filter is based on stepped impedance ring resonator. All the even- and odd-mode resonant frequencies and transmission zeroes of the stepped impedance ring resonator are derived based on the even- and odd-mode analysis. Three interdigital-coupled lines are applied at the input port and output ports to achieve a bandpass response and suppress the second harmonic. For verification, a sample operating at the central frequency of 2 GHz is fabricated and tested. The measured results show the power divider has good performance on impedance matching, frequency selectivity, and isolation over the operating band.

Keywords

Power divider/combinerEven- and odd-modeBandpass response
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 3: Journee Nationale des Micro-ondes (JNM) 2015 , May 2016 , pp. 583 - 590
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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