Title :
Design and performance of GaAs MMIC CPW baluns using overlaid and spiral couplers
Author :
Gokdemir, T. ; Economides, S.B. ; Khalid, A. ; Rezazadeh, A.A. ; Robertson, I.D.
Author_Institution :
Dept. of Electron. & Electr. Eng., King´s Coll., London, UK
Abstract :
The design and performance of microwave and MM-wave baluns using multilayer GaAs MMIC technology is presented. For MM-wave designs a compact overlaid coupler is employed. For lower frequencies it is shown that novel spiral couplers can be used. Results for baluns operating at 30-40 GHz and 5-15 GHz are presented.
Keywords :
III-V semiconductors; MMIC; baluns; coplanar waveguides; gallium arsenide; millimetre wave couplers; 30 to 40 GHz; 5 to 15 GHz; CPW baluns; EHF; GaAs; MM-wave baluns; SHF; compact overlaid coupler; microwave baluns; multilayer GaAs MMIC technology; spiral couplers; Coplanar waveguides; Couplers; Coupling circuits; Frequency; Gallium arsenide; Impedance matching; MMICs; Nonhomogeneous media; Resistors; Spirals;
Conference_Titel :
Microwave Symposium Digest, 1997., IEEE MTT-S International
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-3814-6
DOI :
10.1109/MWSYM.1997.602818
