Title :
X-band successive detection log amplifier/limiter MMIC implemented in 0.15 /spl mu/m double recess PHEMT
Author :
Komiak, J.J. ; Kong, W. ; Nichols, K.
Author_Institution :
Inf. & Electron. Warfare Syst., Microwave Electron. Group, Nashua, NH, USA
Abstract :
Design and performance of an X-band successive detection log amplifier/limiter MMIC covering 8 to 12 GHz is reported. The three-stage amplifier is a cascadeable block providing 20 dB nominal gain, 5.5 dB noise figure, +7 dBm limited output, < 2:1 input/output VSWR, and a 20 dB log range at 50 mV/dB. This is the first reported use of successive detection at X-band frequencies. Previously reported results have been below 7 GHz, required four times the power for the same dynamic range, and twice the chip count. The amplifier is implemented in a fully selective 0.15 /spl mu/m double recess power PHEMT process.
Keywords :
HEMT integrated circuits; MMIC power amplifiers; cascade networks; field effect MMIC; microwave limiters; 0.15 micron; 20 dB; 5.5 dB; 8 to 12 GHz; X-band; cascadeable block; double recess power PHEMT process; dynamic range; input/output VSWR; successive detection log amplifier/limiter MMIC; three-stage amplifier; Circuits; Dynamic range; Impedance matching; MMICs; PHEMTs; Radio frequency; Radiofrequency amplifiers; Resistors; Signal design; Voltage;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2002. 24th Annual Technical Digest
Conference_Location :
Monterey, California, USA
Print_ISBN :
0-7803-7447-9
DOI :
10.1109/GAAS.2002.1049058
