Miniature butler matrix design using glass-based thin-film integrated passive device technology for 2.5-GHz applications

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题名:	Miniature butler matrix design using glass-based thin-film integrated passive device technology for 2.5-GHz applications
作者:	林祐生;Lin, Yo-Shen;Lee, Jun-Hua
贡献者:	資訊電機學院電機工程學系
关键词:	Applied sciences;Bandwidth;Branch-line coupler;bridged-T coil;Butler matrices;Butler matrix;Circuit properties;Circuits;Coiling;Coils;Couplers;Design. Technologies. Operation analysis. Testing;Devices;Electric, optical and optoelectronic circuits;Electronic equipment and fabrication. Passive components, printed wiring boards, connectics;Electronics;Exact sciences and technology;Integrated circuits;integrated passive device (IPD);Joining;Layout;Loss measurement;Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits;Microwaves;Miniature;Noise levels;Semiconductor device measurement;Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices;Thin films
日期:	2013-01-01
上传时间:	2026-04-23 14:24:29 (UTC+8)
出版者:	Institute of Electrical and Electronics Engineers Inc.;New York, NY: IEEE
摘要:	摘要： In this paper, miniature branch-line coupler and Butler matrix designs for 2.5-GHz applications are proposed using the glass-based thin-film integrated passive device (TF-IPD) technology. The size reduction is achieved by replacing the quarter-wavelength transmission lines in a conventional branch-line coupler with the bridged-T coil. In this way, the circuit size can be largely reduced without sacrificing the operation bandwidth. The proposed miniature branch-line coupler is then applied to the design of a 4 × 4 Butler matrix centered at 2.5 GHz using the glass-based TF-IPD technology. The measured results show a bandwidth of 2.4-2.6 GHz for better than 13-dB return loss with a maximal dissipation of 4 dB, amplitude imbalance within 1.1 dB, and phase imbalance less than 13 ° . Notably, the proposed Butler matrix occupies a chip area of 3.13 mm × 3.3 mm, which is only about 0.026 λ 0 × 0.027 λ 0 at 2.5 GHz. 其他題名： TMTT 出版者： New York, NY: IEEE 出版日期： 2013-07-01 出處： IEEE Transactions on Microwave Theory and Techniques, 2013-07, Vol.61 (7), p.2594-2602 資源來源： IEEE Electronic Library (IEL) 版權： 2014 INIST-CNRS 版權： Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Jul 2013 識別號： ISSN: 0018-9480 識別號： EISSN: 1557-9670 識別號： DOI: 10.1109/TMTT.2013.2261540 識別號： CODEN: IETMAB
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