The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
이 문서에서는 WLAN 애플리케이션을 위한 λ/2 및 대칭/비대칭 쌍으로 구성된 λ/4 계단형 임피던스 공진기(SIR)로 구성된 이중 대역 대역 통과 필터(BPF) 설계를 제시합니다. 필터는 2.45GHz와 5.2GHz의 작동 주파수를 모두 포괄합니다. 이중 결합 메커니즘은 선택된 주파수의 신호에 대한 대체 경로를 제공하기 위해 필터 설계에 사용됩니다. 프로토타입 필터는 λ/2 및 대칭 λ/4 SIR로 구성됩니다. 그런 다음 향상된 광대역 저지대역 필터는 대칭형 λ/4 SIR이 비대칭형 SIR로 대체된 필터에서 개발됩니다. 비대칭 λ/4 SIR은 인접한 I/O SIR로부터 분리된 더 높은 공진 주파수를 가지며 향상된 필터를 기본 주파수의 XNUMX배를 초과하는 저지대역 상한까지 확장합니다. 또한 필터는 신호 선택성을 향상시키기 위해 통과대역 가장자리에 의해 전송 영점을 도입하는 교차 결합 구조를 가질 수 있습니다. 이 회로에는 저지대역 거부 수준을 개선하기 위한 추가 감쇠 극을 생성하기 위해 탭 라인 피드가 채택되었습니다. 회로 성능을 검증하기 위해 실험이 수행되었습니다.
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부
Min-Hua HO, Hao-Hung HO, Mingchih CHEN, "Symmetric/Asymmetrical SIRs Dual-Band BPF Design for WLAN Applications" in IEICE TRANSACTIONS on Electronics,
vol. E92-C, no. 9, pp. 1137-1143, September 2009, doi: 10.1587/transele.E92.C.1137.
Abstract: This paper presents the dual-band bandpass filters (BPFs) design composed of λ/2 and symmetrically/asymmetrically paired λ/4 stepped impedance resonators (SIRs) for the WLAN applications. The filters cover both the operating frequencies of 2.45 and 5.2 GHz. The dual-coupling mechanism is used in the filter design to provide alternative routes for signals of selected frequencies. A prototype filter is composed of λ/2 and symmetrical λ/4 SIRs. The enhanced wide-stopband filter is then developed from the filter with the symmetrical λ/4 SIRs replaced by the asymmetrical ones. The asymmetrical λ/4 SIRs have their higher resonances frequencies isolated from the adjacent I/O SIRs and extend the enhanced filter an upper stopband limit beyond ten time the fundamental frequency. Also, the filter might possess a cross-coupling structure which introduces transmission zeros by the passband edges to improve the signal selectivity. The tapped-line feed is adopted in this circuit to create additional attenuation poles for improving the stopband rejection levels. Experiments are conducted to verify the circuit performance.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E92.C.1137/_p
부
@ARTICLE{e92-c_9_1137,
author={Min-Hua HO, Hao-Hung HO, Mingchih CHEN, },
journal={IEICE TRANSACTIONS on Electronics},
title={Symmetric/Asymmetrical SIRs Dual-Band BPF Design for WLAN Applications},
year={2009},
volume={E92-C},
number={9},
pages={1137-1143},
abstract={This paper presents the dual-band bandpass filters (BPFs) design composed of λ/2 and symmetrically/asymmetrically paired λ/4 stepped impedance resonators (SIRs) for the WLAN applications. The filters cover both the operating frequencies of 2.45 and 5.2 GHz. The dual-coupling mechanism is used in the filter design to provide alternative routes for signals of selected frequencies. A prototype filter is composed of λ/2 and symmetrical λ/4 SIRs. The enhanced wide-stopband filter is then developed from the filter with the symmetrical λ/4 SIRs replaced by the asymmetrical ones. The asymmetrical λ/4 SIRs have their higher resonances frequencies isolated from the adjacent I/O SIRs and extend the enhanced filter an upper stopband limit beyond ten time the fundamental frequency. Also, the filter might possess a cross-coupling structure which introduces transmission zeros by the passband edges to improve the signal selectivity. The tapped-line feed is adopted in this circuit to create additional attenuation poles for improving the stopband rejection levels. Experiments are conducted to verify the circuit performance.},
keywords={},
doi={10.1587/transele.E92.C.1137},
ISSN={1745-1353},
month={September},}
부
TY - JOUR
TI - Symmetric/Asymmetrical SIRs Dual-Band BPF Design for WLAN Applications
T2 - IEICE TRANSACTIONS on Electronics
SP - 1137
EP - 1143
AU - Min-Hua HO
AU - Hao-Hung HO
AU - Mingchih CHEN
PY - 2009
DO - 10.1587/transele.E92.C.1137
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E92-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2009
AB - This paper presents the dual-band bandpass filters (BPFs) design composed of λ/2 and symmetrically/asymmetrically paired λ/4 stepped impedance resonators (SIRs) for the WLAN applications. The filters cover both the operating frequencies of 2.45 and 5.2 GHz. The dual-coupling mechanism is used in the filter design to provide alternative routes for signals of selected frequencies. A prototype filter is composed of λ/2 and symmetrical λ/4 SIRs. The enhanced wide-stopband filter is then developed from the filter with the symmetrical λ/4 SIRs replaced by the asymmetrical ones. The asymmetrical λ/4 SIRs have their higher resonances frequencies isolated from the adjacent I/O SIRs and extend the enhanced filter an upper stopband limit beyond ten time the fundamental frequency. Also, the filter might possess a cross-coupling structure which introduces transmission zeros by the passband edges to improve the signal selectivity. The tapped-line feed is adopted in this circuit to create additional attenuation poles for improving the stopband rejection levels. Experiments are conducted to verify the circuit performance.
ER -