A low-power, wide-range variable gain CMOS RF transmitter for 900 MHz wireless communications

Authors:
Trung-Kien Nguyen
Affiliations:
Telematics Research Department, Electronics and Telecommunications Research Institute (ETRI), Daejeon, South Korea 305-700
Venue:
Analog Integrated Circuits and Signal Processing
Year:
2010

Citing 1
Cited 1

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Abstract

This paper presents a low-power, wide-range variable gain RF transmitter for 900 MHz-band wireless communication applications based on a standard 0.18 μm CMOS technology. A very wide-range variable gain and high linearity up-conversion mixer is obtained by using a newly transconductance stage. High linearity at low power dissipation driver amplifier can be obtained by adopting a folded cascode topology with an additional gate-source capacitor. The measured results show conversion gain of 16 dB, dB-linear gain variation of 47 dB with the linearity error less than 卤0.5 dB, output P-1 dB of 2 dBm, and OIP3 of 12 dBm while dissipating 4 mA from 1.25 V supply.