Quasi lumped element quadrature coupler design

S.B.D. O'Caireallain, V. F. Fusco

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


In this paper synthesis equations for a type of directional coupler that employs both distributed and lumped elements with phase quadrature characteristics are developed This configuration will be referred to as the quasi-lumped coupler. Theoretical and practical results are presented for an inductive coupler operating at 100 MHz and a capacitive coupler operated at 500 MHz. The major application for the class of couplers described in this paper is for millimetric MMICs.
Original languageEnglish
Pages (from-to)216-218
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number6
Publication statusPublished - Jun 1989


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