Title :
A 5-watt, 37-GHz monolithic grid amplifier
Author :
Deckman, B. ; Deakin, D.S., Jr. ; Sovero, E. ; Rutledge, D.
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
Abstract :
A 5-Watt Ka-band amplifier has been demonstrated. The area of the grid amplifier is 1 cm/sup 2/ and there are 512 transistors. The small-signal gain of the grid is 8 dB at 37.2 GHz, with 1.3 GHz bandwidth. At 5 Watts output, the gain is 5 dB with 15% power-added efficiency. An aluminum-nitride heat spreader allows continuous operation with an estimated gate temperature of 70/spl deg/C.
Keywords :
microwave amplifiers; 1.3 GHz; 15 percent; 37 GHz; 5 W; 5 to 8 dB; 70 C; AlN; Ka-band; aluminum nitride heat spreader; monolithic grid amplifier; power added efficiency; small-signal gain; Bandwidth; Cogeneration; Gallium arsenide; Infrared heating; PHEMTs; Power amplifiers; Resistance heating; Temperature measurement; Thermal management; Thermal resistance;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.863303
