Title :
A power amplifier yields 10 watts over 8-14 GHz using GaAs MMICs in an LTCC serial combiner/divider network
Author :
Gipprich, J.W. ; Dickens, L.E. ; Faulkner, J.A.
Author_Institution :
Westinghouse Electr. Corp., Baltimore, MD, USA
Abstract :
An effort was made to develop a high-efficiency N-way combining scheme consistent with the physical geometries associated with X- and Ku-band active apertures. A 12-way combiner using stripline serial feed networks in low-temperature cofired ceramic (LTTC) was designed, fabricated, and tested over an 8-14-GHz bandwidth. This combiner was integrated with six dual-channel 1-W MMICs (monolithic microwave integrated circuit) to achieve 10-W peak output power with greater than 86% combining efficiency at center band.<>
Keywords :
III-V semiconductors; MMIC; gallium arsenide; microwave amplifiers; power amplifiers; waveguide couplers; 10 W; 8 to 14 GHz; 86 percent; GaAs; Ku-band; LTCC serial combiner/divider network; MMICs; N-way combining scheme; X-band; active apertures; combining efficiency; low-temperature cofired ceramic; peak output power; physical geometries; power amplifier; stripline serial feed networks; Apertures; Bandwidth; Ceramics; Circuit testing; Computational geometry; Feeds; Gallium arsenide; MMICs; Power amplifiers; Stripline;
Conference_Titel :
Microwave Symposium Digest, 1993., IEEE MTT-S International
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-1209-0
DOI :
10.1109/MWSYM.1993.276743
