Design of a new bandpass filter using anti-parallel coupled asymmetric SIRs

Ching Her Lee, Chung I.G. Hsu, He Kai Jhuang

研究成果: Article

7 引文 斯高帕斯(Scopus)

摘要

In this paper a newly designed internally-coupled asymmetric stepped-impedance resonator (SIR) bandpass filter (BPF) is proposed. The asymmetric SIR structure not only can effectively reduce the circuit size but also can provide two flexibly tunable transmission zeros near the lower and upper passband edges. The first transmission zero is due to the series resonance of the quarter-wavelength open stepped-impedance stub, and the second one is produced by anti-parallel coupling between adjacent SIRs, The proposed BPF was fabricated and simulated using the commercial software HFSS, and agreement between the measured and simulated results was observed. A 0.9-dB insertion loss and a shape factor of 3.6 were achieved in the passband, thus indicating that the proposed filter structure is of practical value.

原文English
頁(從 - 到)571-575
頁數5
期刊IEICE Transactions on Electronics
E89-C
發行號4
DOIs
出版狀態Published - 2006 四月

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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