Design of down-conversion mixer with gm-boosted stage combining low phase noise oscillator

Author

Wu, Chang-Hsi ; Lin, Yu-Po

Author_Institution

Dept. of Electron. Eng., Lunghwa Univ. of Sci. & Technol., Taoyuan, Taiwan

Volume

2

fYear

2010

fDate

17-20 Sept. 2010

Firstpage

1

Lastpage

4

Abstract

A high gain and high linearity down conversion mixer combining low phase noise oscillator based on CMOS 0.18μm process is presented in this paper. To enhance the conversion gain and to reduce power consumption, the proposed mixer employs g_m-boosted technique. The proposed circuit achieves simulated conversion gain of 18.07dB, input third-order intercept point (IIP₃) of -5.85 dBm and noise figure of 13.2dB. The proposed VCO exhibits a tuning range of 323 MHz and a phase noise of -115 dBc/Hz at 1-MHz offset frequency. Operating at a supply voltage of 1.8 V, the power consumptions for the mixer and the LO oscillator are both 10.952 mW. The size of the chip is 1.215mm × 1.185mm.VCO

Keywords

CMOS integrated circuits; low noise amplifiers; mixers (circuits); voltage-controlled oscillators; CMOS process; Gm-boosted stage; down-conversion mixer; frequency 1 MHz; frequency 323 MHz; gain 18.07 dB; low phase noise oscillator; noise figure 13.2 dB; power 10.952 mW; size 0.18 mum; voltage 1.8 V; voltage controlled oscillator;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals Systems and Electronics (ISSSE), 2010 International Symposium on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-6352-7

Type

conf

DOI

10.1109/ISSSE.2010.5607026

Filename

5607026