Title :
An EVM-optimized power amplifier for 2.4-GHz WLAN application
Author :
Sagebiel, Michael ; Gerlach, Stephan ; Kruck, Achim ; Subramanian, Viswanathan
Author_Institution :
Atmel, Heilbronn, Germany
fDate :
30 Oct.-2 Nov. 2005
Abstract :
A 2.4-GHz three-stage power amplifier for WLAN IEEE802.11b/g has been designed using low cost 35-GHz fT SiGe-HBT technology. Special emphasis has been placed on minimizing the error vector magnitude (EVM) for a 54-Mbps OFDM modulated signal. Up to 21 dBm of output power can be achieved with 3% EVM under these conditions. The PA shows 33dB power gain and a 27dBm P1dB with an associated 42% power added efficiency (PAE).
Keywords :
Ge-Si alloys; IEEE standards; UHF power amplifiers; wireless LAN; 2.4 GHz; 35 GHz; 54 Mbit/s; IEEE802.11b/g; OFDM modulated signal; SiGe; SiGe-HBT technology; WLAN application; error vector magnitude; power added efficiency; power amplifier; Costs; Distortion measurement; Linearity; OFDM; Phase distortion; Power amplifiers; Power generation; Radio frequency; Voltage; Wireless LAN;
Conference_Titel :
Compound Semiconductor Integrated Circuit Symposium, 2005. CSIC '05. IEEE
Print_ISBN :
0-7803-9250-7
DOI :
10.1109/CSICS.2005.1531796
