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Design of differential-mode bandpass filter with common-mode suppression using ring dielectric resonator

Published online by Cambridge University Press:  29 November 2016

Jugul Kishor
Affiliation:
Department of Electronics and Communication Engineering, I. T. S Engineering College, Greater Noida, UP, India
Binod K. Kanaujia
Affiliation:
Department of ECE, Ambedkar Institute of Advanced Communication Technologies and Research, Geeta Colony, New Delhi-110031, India School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi-110067, India
Santanu Dwari
Affiliation:
Department of Electronics Engineering, Indian School of Mines, Dhanbad, Jharkhand, India
Ashwani Kumar
Affiliation:
Department of Electronics, Sri Aurobindo College, University of Delhi, Malviya Nagar, New Delhi-110017, India
Corresponding
E-mail address:

Abstract

Synthesis of differential-mode bandpass filter (BPF) with good common-mode suppression has been described and demonstrated on the basis of ring dielectric resonator (RDR) for high-performance communication system. A RDR with two pairs of feeding lines has been used to excite TE01δ-mode. This unique combination of feeding lines and the ring resonator creates a differential passband. Meanwhile, TM01δ-mode of the DR can also be excited to achieve common-mode rejection in the stopband. Transmission zeros are created in the lower and upper stopband to further improve the selectivity of the proposed BPF. A second-order differential BPF is designed, fabricated and its performance is measured to validate the concept. There is good agreement between simulated and measured results.

Type
Research Papers
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

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References

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Design of differential-mode bandpass filter with common-mode suppression using ring dielectric resonator
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