Abstract
A dual-band microstrip bandpass filter (BPF) designed using half-wavelength (λ/2) tri-section microstrip steppedimpedance resonators (TSSIRs) and quarter-wavelength (λ/4) coplanar-waveguide (CPW) stepped-impedance resonators (SIRs) is presented. The center frequencies of the passbands are located at commercially practical frequencies (2.45 and 5.25 GHz) for wireless local-area network (WLAN) applications. A pair of TSSIRs in the top layer of the BPF provides a path for the 2.45 and 5.25 GHz signals, and a pair of CPW SIRs in the ground layer furnishes a path for the 5.25 GHz signal. All these resonators are coupled by microstrip feed lines. For passband selectivity improvement, a cross-coupling path is established by connecting an anti-parallelcoupled line section to the ends of the input and output feed lines to form the source-load coupling.
| Original language | English |
|---|---|
| Pages (from-to) | 13-18 |
| Number of pages | 6 |
| Journal | Journal of Microwaves and Optoelectronics |
| Volume | 8 |
| Issue number | 1 |
| Publication status | Published - 2009 Jun 1 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
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Design of dual-band bandpass filter incorporating tri-section SIRs and CPW SIRs. / Lee, Ching Her; Hsu, Chung I.G.; Chen, Yu Cheng.
In: Journal of Microwaves and Optoelectronics, Vol. 8, No. 1, 01.06.2009, p. 13-18.Research output: Contribution to journal › Article
TY - JOUR
T1 - Design of dual-band bandpass filter incorporating tri-section SIRs and CPW SIRs
AU - Lee, Ching Her
AU - Hsu, Chung I.G.
AU - Chen, Yu Cheng
PY - 2009/6/1
Y1 - 2009/6/1
N2 - A dual-band microstrip bandpass filter (BPF) designed using half-wavelength (λ/2) tri-section microstrip steppedimpedance resonators (TSSIRs) and quarter-wavelength (λ/4) coplanar-waveguide (CPW) stepped-impedance resonators (SIRs) is presented. The center frequencies of the passbands are located at commercially practical frequencies (2.45 and 5.25 GHz) for wireless local-area network (WLAN) applications. A pair of TSSIRs in the top layer of the BPF provides a path for the 2.45 and 5.25 GHz signals, and a pair of CPW SIRs in the ground layer furnishes a path for the 5.25 GHz signal. All these resonators are coupled by microstrip feed lines. For passband selectivity improvement, a cross-coupling path is established by connecting an anti-parallelcoupled line section to the ends of the input and output feed lines to form the source-load coupling.
AB - A dual-band microstrip bandpass filter (BPF) designed using half-wavelength (λ/2) tri-section microstrip steppedimpedance resonators (TSSIRs) and quarter-wavelength (λ/4) coplanar-waveguide (CPW) stepped-impedance resonators (SIRs) is presented. The center frequencies of the passbands are located at commercially practical frequencies (2.45 and 5.25 GHz) for wireless local-area network (WLAN) applications. A pair of TSSIRs in the top layer of the BPF provides a path for the 2.45 and 5.25 GHz signals, and a pair of CPW SIRs in the ground layer furnishes a path for the 5.25 GHz signal. All these resonators are coupled by microstrip feed lines. For passband selectivity improvement, a cross-coupling path is established by connecting an anti-parallelcoupled line section to the ends of the input and output feed lines to form the source-load coupling.
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M3 - Article
AN - SCOPUS:70350666702
VL - 8
SP - 13
EP - 18
JO - Journal of Microwaves, Optoelectronics and Electromagnetic Applications
JF - Journal of Microwaves, Optoelectronics and Electromagnetic Applications
SN - 2179-1074
IS - 1
ER -