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Lumped element hybrid networks for GaAs MMICs
Author(s) -
Fusco V. F.,
O'Caireallain S. B. D.
Publication year - 1989
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650020109
Subject(s) - monolithic microwave integrated circuit , microwave , electronic engineering , electronic circuit , engineering , integrated circuit , electrical element , electrical engineering , topology (electrical circuits) , telecommunications , cmos , amplifier
The use of lumped elements in microwave monolithic circuits (MMICs) is an essential feature allowing substantial reduction of GaAs substrate and reduced area cost when compared with conventional distributed microwave designs. The development of low loss passive circuit elements is therefore critical for the realisation of space conservative and efficient monolithic circuits. This paper discusses the properties of a series of lumped element designs that exhibit the same functional behaviour as the distributed quarter‐wavelength quadrature branchline coupler and presents a set of closed equations for their design.