A new broadband microstrip quadrature hybrid with very flat phase response

Ladu, Adelaide and Pisano, Giampaolo ORCID: https://orcid.org/0000-0003-4302-5681 2013. A new broadband microstrip quadrature hybrid with very flat phase response. Progress In Electromagnetics Research C 34 , pp. 227-237. 10.2528/PIERC12090305

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Abstract

A new broadband microstrip branch-line quadrature hybrid with very flat phase response is presented. The device is made by cascading four branch-line couplers with arbitrary power division. The novel design is based on the microstrip transposition of a broadband waveguide polariser [4]. Across a 32% bandwidth centred at 9.3 GHz, the RL and the IL are respectively -15 dB and -3 dB/-4 dB; the phase difference is very flat, i.e. 90°±1.5°.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Publisher:	EMW Publishing
ISSN:	1937-8718
Last Modified:	27 Oct 2022 08:28
URI:	https://orca.cardiff.ac.uk/id/eprint/62434

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