Title :
A 3W 55% PAE CMOS PA with Closed-Loop 20:1 VSWR Protection
Author :
Carrara, Francesco ; Presti, Calogero D. ; Scuderi, Antonino ; Santagati, Carmelo ; Palmisano, Giuseppe
Author_Institution :
Univ. di Catania
Abstract :
A 0.25mum 2V CMOS PA for GSM applications delivers 3W output power with 55% PAE. A closed-loop mismatch protection method is implemented that enables the PA to sustain a 20:1 load VSWR at full power. The circuit enables faster protection lock-in by reducing the number of low-frequency poles in the loop response.
Keywords :
CMOS integrated circuits; power amplifiers; 2 V; 3 W; CMOS PA; GSM applications; closed-loop VSWR protection; closed-loop mismatch protection method; Circuit testing; Degradation; Power amplifiers; Power generation; Protection; Radio frequency; Radiofrequency amplifiers; Solid state circuits; Threshold voltage; Transconductors;
Conference_Titel :
Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0853-9
Electronic_ISBN :
0193-6530
DOI :
10.1109/ISSCC.2007.373597
