Title :
A compact 8-14 GHz LTCC stripline coupler network for high efficiency power combining with better than 82% combining efficiency
Author :
Gipprich, J. ; Dickens, Luke ; Hayes, Barry ; Sacks, F.
Author_Institution :
Electron. Syst., Westinghouse Electr. Corp., Baltimore, MD, USA
Abstract :
A compact coupler network for combining six high efficiency HBT power MMICs has demonstrated an 82% minimum combining efficiency (0.85 dB), typically greater than 87% (0.6 dB), over an 8.0 to 14.0 GHz frequency band. The combining network is a two-tier "vertically stacked" multilayer Low Temperature Cofired Ceramic (LTCC) stripline assembly and was designed with the aid of electromagnetic simulation and circuit modeling. This paper describes the design, fabrication and test of this combiner assembly.<>
Keywords :
power combiners; strip line couplers; 8 to 14 GHz; 82 percent; HBT power MMICs; Low Temperature Cofired Ceramic; circuit modeling; compact coupler network; design; electromagnetic simulation; fabrication; power combiner; test; two-tier vertically stacked multilayer LTCC stripline; Assembly; Ceramics; Circuit simulation; Electromagnetic modeling; Frequency; Heterojunction bipolar transistors; MMICs; Nonhomogeneous media; Stripline; Temperature;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406278
