Title :
A novel high efficiency multioctave amplifier using cascaded reactively terminated single-stage distributed amplifiers for EW system applications
Author :
Virdee, A.S. ; Virdee, B.S.
Author_Institution :
Filtronic Components Ltd., Milton Keynes, UK
Abstract :
This paper demonstrates the design of a high efficiency amplifier employing a novel concept of cascaded reactively terminated single-stage distributed amplifier (CRTSSDA). In addition, CRTSSDA produces an available power gain significantly higher than conventional distributed amplifiers using the same number of active devices. Three-CRTSSDAs were designed and fabricated for EW application. The novel amplifier achieved an associated gain above 26 dB with flatness of \n\n\t\t
Keywords :
HEMT circuits; cascade networks; distributed amplifiers; electronic warfare; microwave amplifiers; microwave circuits; wideband amplifiers; 2 to 18 GHz; 30 percent; EW system applications; active devices; available power gain; cascaded reactively terminated single-stage distributed amplifiers; gain flatness; high efficiency multioctave amplifier; output power; power added efficiency; Bandwidth; Broadband amplifiers; Circuits; Distributed amplifiers; Impedance matching; Inductance; Phased arrays; Power amplifiers; Power generation; Termination of employment;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.966945
