Design of on-chip quadrature hybrid (3dB) branch-line couplers in 0.13-μm SiGe technology for millimetre-wave applications

Publication Type:
Conference Proceeding
Citation:
2017 17th International Symposium on Communications and Information Technologies, ISCIT 2017, 2018, 2018-January pp. 1 - 5
Issue Date:
2018-01-16
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© 2017 IEEE. In this paper, design of miniaturized on-chip quadrature hybrid branch-line coupler is investigated. The motivation of this work is to minimize the footprint of the designed coupler while maintaining high performance of the circuit in the mm-wave band spectrum. Three examples are implemented in a standard (Bi)-CMOS process for millimetre wave applications. Excluding the pads, the chip size of the conventional design is 0.35 mm2, and the proposed two other designs structures are 0.26 mm2and 0.21 mm2, respectively, which indicates an area reduction by 13% and 30% respectively.
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