Distributed-element absorptive bandpass filter with a broadband impedance matching

Jongheun Lee; Seunggoo Nam; Juseop Lee

doi:10.1109/IMS30576.2020.9223959

Distributed-element absorptive bandpass filter with a broadband impedance matching

Jongheun Lee, Seunggoo Nam, Juseop Lee

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

3 Citations (Scopus)

Abstract

In this paper, we present a new method for designing absorptive bandpass filters using coupled lines. The new design method and filter structure allow an absorptive bandpass filter to have good impedance matching performance over a wider frequency range in comparison with distributed-element absorptive filters reported in the literature. Closed form design equations are provided so that a filter can be designed in a way to produce a target frequency response. For verifying the presented design approach, a second-order absorptive bandpass filter centered at 2 GHz having 10% fractional bandwidth has been designed, fabricated, and measured. The measurement shows that the return losses (S11 and S22) are overall larger than 10 dB from DC to 3 f0.

Original language	English
Title of host publication	IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	912-915
Number of pages	4
ISBN (Electronic)	9781728168159
DOIs	https://doi.org/10.1109/IMS30576.2020.9223959
Publication status	Published - 2020 Aug
Event	2020 IEEE/MTT-S International Microwave Symposium, IMS 2020 - Virtual, Los Angeles, United States Duration: 2020 Aug 4 → 2020 Aug 6

Publication series

Name	IEEE MTT-S International Microwave Symposium Digest
Volume	2020-August
ISSN (Print)	0149-645X

Conference

Conference	2020 IEEE/MTT-S International Microwave Symposium, IMS 2020
Country/Territory	United States
City	Virtual, Los Angeles
Period	20/8/4 → 20/8/6

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. NRF-2018R1A2B6006095).

Publisher Copyright:
© 2020 IEEE.

Keywords

Absorptive filters
Distributed-element filters

ASJC Scopus subject areas

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/IMS30576.2020.9223959

Cite this

Lee, J., Nam, S., & Lee, J. (2020). Distributed-element absorptive bandpass filter with a broadband impedance matching. In IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium (pp. 912-915). Article 9223959 (IEEE MTT-S International Microwave Symposium Digest; Vol. 2020-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IMS30576.2020.9223959

Distributed-element absorptive bandpass filter with a broadband impedance matching. / Lee, Jongheun; Nam, Seunggoo; Lee, Juseop.
IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium. Institute of Electrical and Electronics Engineers Inc., 2020. p. 912-915 9223959 (IEEE MTT-S International Microwave Symposium Digest; Vol. 2020-August).

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

Lee, J, Nam, S & Lee, J 2020, Distributed-element absorptive bandpass filter with a broadband impedance matching. in IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium., 9223959, IEEE MTT-S International Microwave Symposium Digest, vol. 2020-August, Institute of Electrical and Electronics Engineers Inc., pp. 912-915, 2020 IEEE/MTT-S International Microwave Symposium, IMS 2020, Virtual, Los Angeles, United States, 20/8/4. https://doi.org/10.1109/IMS30576.2020.9223959

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abstract = "In this paper, we present a new method for designing absorptive bandpass filters using coupled lines. The new design method and filter structure allow an absorptive bandpass filter to have good impedance matching performance over a wider frequency range in comparison with distributed-element absorptive filters reported in the literature. Closed form design equations are provided so that a filter can be designed in a way to produce a target frequency response. For verifying the presented design approach, a second-order absorptive bandpass filter centered at 2 GHz having 10% fractional bandwidth has been designed, fabricated, and measured. The measurement shows that the return losses (S11 and S22) are overall larger than 10 dB from DC to 3 f0. ",

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AB - In this paper, we present a new method for designing absorptive bandpass filters using coupled lines. The new design method and filter structure allow an absorptive bandpass filter to have good impedance matching performance over a wider frequency range in comparison with distributed-element absorptive filters reported in the literature. Closed form design equations are provided so that a filter can be designed in a way to produce a target frequency response. For verifying the presented design approach, a second-order absorptive bandpass filter centered at 2 GHz having 10% fractional bandwidth has been designed, fabricated, and measured. The measurement shows that the return losses (S11 and S22) are overall larger than 10 dB from DC to 3 f0.

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Distributed-element absorptive bandpass filter with a broadband impedance matching

Abstract

Publication series

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Bibliographical note

Keywords

ASJC Scopus subject areas

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