Title :
Multiband multi-standard transmitter using a compact power amplifier driver
Author :
Magnusson, HAkan ; Olsson, Håkan
Author_Institution :
Dept. of Microelectron. & Inf. Technol., R. Inst. of Technol., Kista, Sweden
Abstract :
This paper presents a multistandard transmitter solution using a new power amplifier (PA) driver operating in the broadcast, mobile, and the 2 GHz and 5 GHz ISM bands. The use of dual-loop feedback in the driver provides a matched output without area consuming matching networks. The circuit size is as small as 0.3 mm2 for the used 0.18 μm CMOS process, saving about 0.7 mm2 silicon area. Measurement results show a gain higher than 7.8 dB with a maximum output power of +4 dBm for all bands and using a supply voltage of 1.8 V.
Keywords :
CMOS analogue integrated circuits; MMIC power amplifiers; feedback amplifiers; impedance matching; radio transmitters; wideband amplifiers; 0.18 micron; 1.8 V; 2 GHz; 5 GHz; 7.8 dB; CMOS; ISM bands; broadcast bands; compact power amplifier driver; dual-loop feedback; matched output impedance; mobile bands; multiband transmitter; multiple-standard transmitter; wideband amplifiers; Broadcasting; CMOS process; Driver circuits; Gain measurement; Impedance matching; Output feedback; Power amplifiers; Power measurement; Silicon; Transmitters;
Conference_Titel :
Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. 2005 IEEE
Print_ISBN :
0-7803-8983-2
DOI :
10.1109/RFIC.2005.1489853
