Balun diplexer design in hybrid structure of microstrip line and slot-line

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

2 Citations (Scopus)

Abstract

In this paper, a new balun diplexer consists of hybrid microstrip and slot-line resonator structures is designed with broad-band common-mode (CM) suppression. The balun diplexer was formed by combining two balun bandpass filters (BPFs) operating at 1.92 GHz and 2.45 GHz, respectively, through a T-junction. Cross-coupling between the feed-lines and the SISLRs at a proper position is adopted to obtain an appropriate coupling strength between the above two resonators. In addition, the incompleteness of the slot-line resonator results from the open-boundary condition along the symmetry plane in CM operation is employed to effectively suppress the CM signals. A prototype of the proposed balun diplexer was implemented and measured with a differential-mode isolation of higher than 25.4 dB and a CM suppression of larger than 27.5 dB in the frequency range of 1-6 GHz. Good agreement was observed between the simulated and the measured results.

Original languageEnglish
Title of host publication2015 Asia-Pacific Microwave Conference Proceedings, APMC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Volume3
ISBN (Electronic)9781479987658
DOIs
Publication statusPublished - 2015 Jan 1
Event2015 Asia-Pacific Microwave Conference, APMC 2015 - Nanjing, China
Duration: 2015 Dec 62015 Dec 9

Other

Other2015 Asia-Pacific Microwave Conference, APMC 2015
CountryChina
CityNanjing
Period15-12-0615-12-09

Fingerprint

Microstrip lines
Resonators
Bandpass filters
Boundary conditions

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Wu, Z. L., Lee, C-H., & Chen, H-H. (2015). Balun diplexer design in hybrid structure of microstrip line and slot-line. In 2015 Asia-Pacific Microwave Conference Proceedings, APMC 2015 (Vol. 3). [7413541] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APMC.2015.7413541
Wu, Zhong Lin ; Lee, Ching-Her ; Chen, Hsun-Hsiang. / Balun diplexer design in hybrid structure of microstrip line and slot-line. 2015 Asia-Pacific Microwave Conference Proceedings, APMC 2015. Vol. 3 Institute of Electrical and Electronics Engineers Inc., 2015.
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Wu, ZL, Lee, C-H & Chen, H-H 2015, Balun diplexer design in hybrid structure of microstrip line and slot-line. in 2015 Asia-Pacific Microwave Conference Proceedings, APMC 2015. vol. 3, 7413541, Institute of Electrical and Electronics Engineers Inc., 2015 Asia-Pacific Microwave Conference, APMC 2015, Nanjing, China, 15-12-06. https://doi.org/10.1109/APMC.2015.7413541

Balun diplexer design in hybrid structure of microstrip line and slot-line. / Wu, Zhong Lin; Lee, Ching-Her; Chen, Hsun-Hsiang.

2015 Asia-Pacific Microwave Conference Proceedings, APMC 2015. Vol. 3 Institute of Electrical and Electronics Engineers Inc., 2015. 7413541.

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

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Wu ZL, Lee C-H, Chen H-H. Balun diplexer design in hybrid structure of microstrip line and slot-line. In 2015 Asia-Pacific Microwave Conference Proceedings, APMC 2015. Vol. 3. Institute of Electrical and Electronics Engineers Inc. 2015. 7413541 https://doi.org/10.1109/APMC.2015.7413541