Modified wideband tandem couplers with arbitrary coupling coefficient and its implementation in beam-forming networks

Publication Type:
Conference Proceeding
Citation:
Asia-Pacific Microwave Conference Proceedings, APMC, 2019, 2018-November pp. 542 - 544
Issue Date:
2019-01-16
Full metadata record
© 2018 IEICE This paper presents a wideband quadrature coupler using a modified Tandem structure with two stages of cascaded coupled-lines. The proposed design is built in the stripline configuration, which can achieve wide operating bandwidth and excellent matching as well as high isolation across the whole band range. The proposed design with coupling coefficient of 3-dB and 1.77-dB is applied in the design of a wideband beam-forming network for wideband applications. Experimental result has been carried out, verifying that the design approach is useful for wideband applications.
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