Title :
Miniature multilayer spiral inductors for GaAs MMICs
Author :
Geen, M.W. ; Green, G.J. ; Arnold, R.G. ; Jenkins, J.A. ; Jansen, R.H.
Author_Institution :
Plessey Three Five Group, Towcester, UK
Abstract :
A model approach is presented for reducing the area consumed by MMIC (monolithic microwave integrated circuit) spiral inductors by exploiting a multilayer MMIC process. These spiral inductors can be designed to have inductance values as high as 20 nH but occupy areas of less than 0.1 mm/sup 2/. A simple analysis is presented to estimate the prime inductance, and the results of geometric optimization using a two-level electromagnetic field analysis are shown. A practical equivalent circuit has been developed together with a set of design equations. A miniaturized amplifier has been produced to demonstrate the successful application of the component.<>
Keywords :
III-V semiconductors; MMIC; electromagnetic fields; equivalent circuits; gallium arsenide; inductors; microwave amplifiers; GaAs; MMIC; area; design equations; equivalent circuit; geometric optimization; inductance values; miniaturized amplifier; multilayer process; prime inductance; spiral inductors; two-level electromagnetic field analysis; Electromagnetic analysis; Gallium arsenide; Inductance; Inductors; Integrated circuit modeling; MMICs; Microwave integrated circuits; Monolithic integrated circuits; Nonhomogeneous media; Spirals;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1989. Technical Digest 1989., 11th Annual
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/GAAS.1989.69348
