Design and Realization of Spiral Marchand Balun Using CPW Multilayer GaAs Technology

Newly developed spiral Marchand baluns using the great flexibility of three-dimensional multilayer technology have been designed, optimized, fabricated, and measured. This paper demonstrates a monolithic microwave integrated circuits (MMIC) coplanar waveguide (CPW) spiral Marchand balun with good ba...

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Bibliographic Details
Published in2006 European Microwave Conference pp. 68 - 71
Main Authors Sun, Q., Yuan, J., Vo, V.T., Rezazadeh, A.A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2006
Subjects
Baluns
Circuit simulation
Coplanar waveguides
Design optimization
Frequency
Gallium arsenide
Impedance matching
Integrated circuit technology
MMICs
multilayer
Nonhomogeneous media
Spirals
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Summary:Newly developed spiral Marchand baluns using the great flexibility of three-dimensional multilayer technology have been designed, optimized, fabricated, and measured. This paper demonstrates a monolithic microwave integrated circuits (MMIC) coplanar waveguide (CPW) spiral Marchand balun with good balance performance in a wide frequency range and compact size. Even/odd mode characteristic impedance analysis was applied to optimize the balun's performance. A 2.5D simulator ADS Momentum and a true 3D simulator Ansoft HFSS were used for EM simulations providing useful insight of the components design and optimizations as compared with the measured data. On-wafer RF measurements were carried out from 45MHz to 40GHz. The measured results shows small insertion loss, good amplitude and phase balance in a wide operating frequency band. A very compact size of 0.26 mm 2 is achieved
ISBN:2960055160
9782960055160
DOI:10.1109/EUMC.2006.281183