Investigation of a wideband 90° hybrid coupler with an arbitrary coupling level
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 5430901 |
Pages (from-to) | 1022-1029 |
Journal / Publication | IEEE Transactions on Microwave Theory and Techniques |
Volume | 58 |
Issue number | 4 |
Publication status | Published - Apr 2010 |
Link(s)
Abstract
This paper presents a new class of wideband 90 ° hybrid coupler with an arbitrary coupling level. The physical size of the proposed coupler is close to that of a conventional two-section branch-line coupler, but it has an additional phase inverter. The impedance bandwidth of the proposed coupler is close to that of a four-section branch-line coupler. The proposed coupler is a backward-wave coupler with a port assignment different from that of a conventional branch-line coupler. The design formulas of the proposed coupler are proved based on its even- and odd-mode half structures. We demonstrated three couplers at the center frequency of 2 GHz with different design parameters. © 2006 IEEE.
Research Area(s)
- 90° hybrid coupler, Bandwidth enhancement, Parallel-strip phase inverter
Citation Format(s)
Investigation of a wideband 90° hybrid coupler with an arbitrary coupling level. / Chiu, Leung; Xue, Quan.
In: IEEE Transactions on Microwave Theory and Techniques, Vol. 58, No. 4, 5430901, 04.2010, p. 1022-1029.
In: IEEE Transactions on Microwave Theory and Techniques, Vol. 58, No. 4, 5430901, 04.2010, p. 1022-1029.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review