Design of the band-pass filter with wide stopband performance using λ/4 forked SIRs

Wei Chen Lin; Min-Hua Ho

doi:10.1109/APMC.2009.5384493

Design of the band-pass filter with wide stopband performance using λ/4 forked SIRs

Wei Chen Lin, Min-Hua Ho

Graduate Institute of Communication Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

In this paper, a band-pass filter (BPF) using forked stepped-impedance resonators (SIRs) was proposed with having a very wide stopband performance. The circuit composed of two forked SIRs connected with a narrow microstrip with the latter's middle point shorting to the ground through a via hole. The FSIRs filter operated under a quarterwavelength resonance condition. The filter was built for WLAN IEEE 802.11b/g (2.4/2.45 GHz) applications. A long narrow coupled microstrip which increasing the stopband range was used to couple I/O signal to/from the resonators. The upper stopband, its frequency range was measured from 2.76 to 23.08 GHz with the criterion of the signal rejection levels greater than 20 dB. The stopband's upper-end is over 9.5 f₀ with the central frequency of 2.44 GHz. Experiment was conducted and a good agreement was observed between the measurement and simulation.

Original language	English
Title of host publication	APMC 2009 - Asia Pacific Microwave Conference 2009
Pages	1380-1382
Number of pages	3
DOIs	https://doi.org/10.1109/APMC.2009.5384493
Publication status	Published - 2009 Dec 1
Event	Asia Pacific Microwave Conference 2009, APMC 2009 - Singapore, Singapore Duration: 2009 Dec 7 → 2009 Dec 10

Publication series

Name	APMC 2009 - Asia Pacific Microwave Conference 2009

Other

Other	Asia Pacific Microwave Conference 2009, APMC 2009
Country	Singapore
City	Singapore
Period	09-12-07 → 09-12-10

All Science Journal Classification (ASJC) codes

Hardware and Architecture
Electrical and Electronic Engineering

Access to Document

10.1109/APMC.2009.5384493

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Cite this

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title = "Design of the band-pass filter with wide stopband performance using λ/4 forked SIRs",

abstract = "In this paper, a band-pass filter (BPF) using forked stepped-impedance resonators (SIRs) was proposed with having a very wide stopband performance. The circuit composed of two forked SIRs connected with a narrow microstrip with the latter's middle point shorting to the ground through a via hole. The FSIRs filter operated under a quarterwavelength resonance condition. The filter was built for WLAN IEEE 802.11b/g (2.4/2.45 GHz) applications. A long narrow coupled microstrip which increasing the stopband range was used to couple I/O signal to/from the resonators. The upper stopband, its frequency range was measured from 2.76 to 23.08 GHz with the criterion of the signal rejection levels greater than 20 dB. The stopband's upper-end is over 9.5 f0 with the central frequency of 2.44 GHz. Experiment was conducted and a good agreement was observed between the measurement and simulation.",

author = "Lin, {Wei Chen} and Min-Hua Ho",

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N2 - In this paper, a band-pass filter (BPF) using forked stepped-impedance resonators (SIRs) was proposed with having a very wide stopband performance. The circuit composed of two forked SIRs connected with a narrow microstrip with the latter's middle point shorting to the ground through a via hole. The FSIRs filter operated under a quarterwavelength resonance condition. The filter was built for WLAN IEEE 802.11b/g (2.4/2.45 GHz) applications. A long narrow coupled microstrip which increasing the stopband range was used to couple I/O signal to/from the resonators. The upper stopband, its frequency range was measured from 2.76 to 23.08 GHz with the criterion of the signal rejection levels greater than 20 dB. The stopband's upper-end is over 9.5 f0 with the central frequency of 2.44 GHz. Experiment was conducted and a good agreement was observed between the measurement and simulation.

AB - In this paper, a band-pass filter (BPF) using forked stepped-impedance resonators (SIRs) was proposed with having a very wide stopband performance. The circuit composed of two forked SIRs connected with a narrow microstrip with the latter's middle point shorting to the ground through a via hole. The FSIRs filter operated under a quarterwavelength resonance condition. The filter was built for WLAN IEEE 802.11b/g (2.4/2.45 GHz) applications. A long narrow coupled microstrip which increasing the stopband range was used to couple I/O signal to/from the resonators. The upper stopband, its frequency range was measured from 2.76 to 23.08 GHz with the criterion of the signal rejection levels greater than 20 dB. The stopband's upper-end is over 9.5 f0 with the central frequency of 2.44 GHz. Experiment was conducted and a good agreement was observed between the measurement and simulation.

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