Vol. 56

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2015-09-30

Bandpass Filter with Four Transmission Zeros Using Dual-Mode Ring Resonator

By Kuan Deng, Wenjie Feng, and Zhengyu Chen
Progress In Electromagnetics Research Letters, Vol. 56, 129-132, 2015
doi:10.2528/PIERL15090404

Abstract

A novel microstrip bandpass filter with four transmission zeros is proposed. Four transmission zeros close to the passband are realized to improve the selectivity for the passband. A sixth-order passband is realized with two shorted stubs and a dual-mode ring resonator. The transmission zeros near the passband can be adjusted conveniently by only changing the characteristic impedances of the coupled lines. For demonstration, a planar bandpass filter (3-dB bandwidth 21.9%) was designed and fabricated.

Citation


Kuan Deng, Wenjie Feng, and Zhengyu Chen, "Bandpass Filter with Four Transmission Zeros Using Dual-Mode Ring Resonator," Progress In Electromagnetics Research Letters, Vol. 56, 129-132, 2015.
doi:10.2528/PIERL15090404
http://jpier.org/PIERL/pier.php?paper=15090404

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