Design of up conversion mixer with enhanced transconductance stage and low power consumption oscillator

Author

Wu, Chang-Hsi ; Jian, Guan-Xiu

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 5.2 GHz self-oscillating mixer (SOM) for IEEE 802.11a WLAN transmitter, fabricated using CMOS 0.18μm process, is presented in this paper. The conversion gain of the proposed Mixer is mainly upgraded by an enhanced transconductance technique. To reduce the power consumption, the proposed voltage controlled oscillator (VCO) employs a complementarily cross-coupled architecture. Under 1.5 V and 0.6 V supply voltage of Mixer and VCO, respectively, the simulated results of the proposed Mixer reveal a conversion gain of 10.74 dB, input third-order intercept (IIP3) of -4.8dBm, phase noise of -116.2dBc/Hz at 1 MHz offset and tuning range of 4.615GHz~5.335GHz (14.12%) while total power consumption is only 7.3mW. The size of the chip is 0.741mm ×1.291mm.

Keywords

MMIC mixers; low-power electronics; microwave mixers; radio transmitters; voltage-controlled oscillators; wireless LAN; CMOS process; IEEE 802.11a WLAN transmitter; SOM; VCO; complementarily cross-coupled architecture; enhanced transconductance technique; frequency 4.615 GHz to 5.335 GHz; gain 10.74 dB; input third-order intercept; low power consumption oscillator; power 7.3 mW; self-oscillating mixer; size 0.18 mum; up conversion mixer design; voltage 0.6 V; voltage 1.5 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.2010.5607017

Filename

5607017