Design of UWB BPF using SIR with open- and short-circuit stubs for bandwidth enhancement

Cheng Siou Li, Min-Hua Ho, Wanchu Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, an ultra-wideband (UWB) bandpass filter (BPF) composing of a multi-mode resonances SIR is proposed. The SIR provides three resonances to form the passband response. However, the acquired bandwidth (BW) is insufficient and it is remedied by an open and a short-circuit stub, attaching to the SIR in the middle. The added open and short stubs with appropriate length furnish the SIR with two extra resonances, below and above its original ones. The sandwichcoupled-lines structure is implemented in the feed structure to provide the tight coupling needed by the UWB BPF. This feed structure alleviates the manufacturing tolerance caused by a small gap used in a conventional coupled-lines design. To further enhance the coupling strength of the sandwich-coupled lines, a slot is embedded in the ground plan beneath the feed. Experiments are conducted to verify the UWB BPF and agreements between the simulation and the measurements are observed.

Original languageEnglish
Title of host publicationProceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1123-1126
Number of pages4
ISBN (Electronic)9781479943548
DOIs
Publication statusPublished - 2014 Dec 18
Event3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014 - Harbin, China
Duration: 2014 Jul 262014 Jul 29

Publication series

NameProceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014

Other

Other3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014
CountryChina
CityHarbin
Period14-07-2614-07-29

Fingerprint

Bandpass filters
Ultra-wideband (UWB)
Short circuit currents
Bandwidth
Experiments

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Cite this

Li, C. S., Ho, M-H., & Hong, W. (2014). Design of UWB BPF using SIR with open- and short-circuit stubs for bandwidth enhancement. In Proceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014 (pp. 1123-1126). [6992709] (Proceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APCAP.2014.6992709
Li, Cheng Siou ; Ho, Min-Hua ; Hong, Wanchu. / Design of UWB BPF using SIR with open- and short-circuit stubs for bandwidth enhancement. Proceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 1123-1126 (Proceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014).
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abstract = "In this paper, an ultra-wideband (UWB) bandpass filter (BPF) composing of a multi-mode resonances SIR is proposed. The SIR provides three resonances to form the passband response. However, the acquired bandwidth (BW) is insufficient and it is remedied by an open and a short-circuit stub, attaching to the SIR in the middle. The added open and short stubs with appropriate length furnish the SIR with two extra resonances, below and above its original ones. The sandwichcoupled-lines structure is implemented in the feed structure to provide the tight coupling needed by the UWB BPF. This feed structure alleviates the manufacturing tolerance caused by a small gap used in a conventional coupled-lines design. To further enhance the coupling strength of the sandwich-coupled lines, a slot is embedded in the ground plan beneath the feed. Experiments are conducted to verify the UWB BPF and agreements between the simulation and the measurements are observed.",
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Li, CS, Ho, M-H & Hong, W 2014, Design of UWB BPF using SIR with open- and short-circuit stubs for bandwidth enhancement. in Proceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014., 6992709, Proceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014, Institute of Electrical and Electronics Engineers Inc., pp. 1123-1126, 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014, Harbin, China, 14-07-26. https://doi.org/10.1109/APCAP.2014.6992709

Design of UWB BPF using SIR with open- and short-circuit stubs for bandwidth enhancement. / Li, Cheng Siou; Ho, Min-Hua; Hong, Wanchu.

Proceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 1123-1126 6992709 (Proceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - In this paper, an ultra-wideband (UWB) bandpass filter (BPF) composing of a multi-mode resonances SIR is proposed. The SIR provides three resonances to form the passband response. However, the acquired bandwidth (BW) is insufficient and it is remedied by an open and a short-circuit stub, attaching to the SIR in the middle. The added open and short stubs with appropriate length furnish the SIR with two extra resonances, below and above its original ones. The sandwichcoupled-lines structure is implemented in the feed structure to provide the tight coupling needed by the UWB BPF. This feed structure alleviates the manufacturing tolerance caused by a small gap used in a conventional coupled-lines design. To further enhance the coupling strength of the sandwich-coupled lines, a slot is embedded in the ground plan beneath the feed. Experiments are conducted to verify the UWB BPF and agreements between the simulation and the measurements are observed.

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Li CS, Ho M-H, Hong W. Design of UWB BPF using SIR with open- and short-circuit stubs for bandwidth enhancement. In Proceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 1123-1126. 6992709. (Proceedings of 3rd Asia-Pacific Conference on Antennas and Propagation, APCAP 2014). https://doi.org/10.1109/APCAP.2014.6992709