Design of differential-mode bandpass filter with common-mode suppression using ring dielectric resonator
Published online by Cambridge University Press: 29 November 2016
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.
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- Type
- Research Papers
- Information
- International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 5 , June 2017 , pp. 1029 - 1035
- Copyright
- Copyright © Cambridge University Press and the European Microwave Association 2016
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