Title :
A New Low Voltage CMOS Micromixer for 2.45GHz Applications
Author :
Yen, Chin-Hsien ; Chang, Win-Ming ; Cheng, Kuo-Hua ; Jou, Christina F.
Author_Institution :
Inst. of Commun., Nat. Chiao Tung Univ., Hsinchu
Abstract :
This paper presents a new low voltage CMOS micromixer for 2.45GHz applications, which operates at 1V supply voltage. The new low voltage CMOS micromixer topology modified from basic BJT micromixer uses coupling capacitors to feed the RF signal so as to bias the two transistors in RF stage separately with lower voltage. The charge injection method is also adopted to improve the conversion gain and linearity under low voltage operation. With a power consumption of 1.72 mW the measurement shows voltage gain of 8.28 dB, input 1dB compression point of -5.63 dBm and input third-order intercept point of 4.21 dBm
Keywords :
CMOS integrated circuits; UHF mixers; low-power electronics; 1 V; 1.72 mW; 2.45 GHz; 8.28 dB; BJT micromixer; CMOS micromixer; charge injection; coupling capacitors; low voltage micromixer; Capacitors; Energy consumption; Feeds; Gain measurement; Linearity; Low voltage; Power measurement; Radio frequency; Topology; Voltage measurement;
Conference_Titel :
VLSI Design, Automation and Test, 2006 International Symposium on
Conference_Location :
Hsinchu
Print_ISBN :
1-4244-0179-8
Electronic_ISBN :
1-4244-0180-1
DOI :
10.1109/VDAT.2006.258179
