Title :
A Gm-boosted and current peaking wideband merged LNA and mixer
Author :
Hu, Boyu ; Yu, Xiaopeng ; HE, Lenian
Author_Institution :
Inst. of VLSI Design, Zhejiang Univ., Hangzhou, China
Abstract :
This paper presents the concept and design of a wideband merged LNA and mixer covering the frequency range from 2GHz to 10GHz using a standard 0.18-μ m CMOS technology. Gm-boosting and current bleeding techniques are adopted to make the proposed single stage merged LNA and mixer topology suitable for high conversion gain, low noise and low power consumption operation. A proposed current peaking technique further broadens the working frequency range of the merged front-end up to 10GHz. This merged front-end achieves 20dB conversion gain, a flat noise figure of 6.7~8.5dB over the whole working range and an input IP3 of -1dBm. It consumes only 7.2mW from a 1.8V supply.
Keywords :
CMOS integrated circuits; MMIC amplifiers; MMIC mixers; network topology; Gm-boosting techniques; current bleeding techniques; current peaking wideband LNA; frequency 2 GHz to 10 GHz; gain 20 dB; low power consumption operation; mixer topology; noise figure 6.7 dB to 8.5 dB; power 7.2 mW; size 0.18 mum; voltage 1.8 V; wideband mixer;
Conference_Titel :
Ultra-Wideband (ICUWB), 2010 IEEE International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-5305-4
Electronic_ISBN :
978-1-4244-5306-1
DOI :
10.1109/ICUWB.2010.5615801
