NDLI: A new design for two-pole transmission line bandpass filters using a closed-loop resonator and coupled lines

Content Provider	IEEE Xplore Digital Library
Author	Thap, T. Koan Houng Samnang Kuong Jongsik Lim Dal Ahn
Copyright Year	2012
Description	Author affiliation: Department of Electrical Engineering Soonchunhyang University, Asan, Chungnam, 336-745, R.O. Korea (Thap, T.; Koan Houng; Samnang Kuong; Jongsik Lim; Dal Ahn)
Abstract	This paper presents a new design method for two-pole transmission line bandpass filters (BPFs) using a closed-loop resonator and coupled lines. The concept of this method is to adjust the length of the closed-loop resonator for Jl2 inverter realization and attenuation poles at desired frequencies. To analyze the filter structure, we start with an equivalent π-network for the closed-loop resonator that can be transformed into J-inverter-based network. The lengths of the closed-loop resonator and coupled lines are determined from the resonance condition and the relationship between J-inverters and resonant susceptance. To demonstrate the practicality of this new method we designed and fabricated a two-pole bandpass filter. The measured and simulated results of the filter show an excellent agreement with each other.
Starting Page	104
Ending Page	106
File Size	493830
Page Count	3
File Format	PDF
ISBN	9781467323031
e-ISBN	9781467323055
DOI	10.1109/RFIT.2012.6401628
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-21
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Design methodology BAND-PASS FILTER (BPF) Resonator filters Resonant frequency Transmission line measurements Band pass filters Passband CLOSED-LOOP RESONATOR COUPLED LINE Equivalent circuits
Content Type	Text
Resource Type	Article

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