Title :
Low-voltage and low-power 1.9 GHz body-input downconversion mixer
Author :
Jafferali, Nabeel ; Deen, M. Jamal
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada
Abstract :
The paper describes a mixer designed in CMOS 0.18 μm technology, which uses the body terminal of the transistor as one of the inputs. This method allows for the radio-frequency (RF) and local oscillator (LO) stages in traditional switching mixers to be collapsed into one stage, thereby allowing for operation at lower supply voltages and lower power consumption levels. The mixer was designed to downconvert a 1.9 GHz RF signal to a 250 MHz intermediate-frequency (IF) signal. The simulated performance characteristics result in a power consumption of 400 μW from a 0.8 V supply, a conversion gain of 3 dB, a single sideband (SSB) noise figure of 10 dB, and an input-referred 3rd-order intercept point (IIP3) of -11 dBm.
Keywords :
CMOS integrated circuits; UHF frequency convertors; UHF integrated circuits; UHF mixers; circuit simulation; integrated circuit design; integrated circuit noise; low-power electronics; radio equipment; 0.18 micron; 0.8 V; 1.9 GHz; 10 dB; 250 MHz; 3 dB; 400 muW; CMOS technology; IIP3; RF signal downconversion; SSB noise figure; conversion gain; input-referred third-order intercept point; intermediate-frequency signal; local oscillator stages; low-voltage low-power body-input downconversion mixer; mixer design; operating supply voltages; power consumption; power consumption levels; radio-frequency stages; simulated performance characteristics; single sideband noise figure; switching mixers; transistor body terminal input; Amplitude modulation; CMOS technology; Energy consumption; Local oscillators; Paper technology; Performance gain; RF signals; Radio frequency; Signal design; Voltage-controlled oscillators;
Conference_Titel :
Electrical and Computer Engineering, 2004. Canadian Conference on
Print_ISBN :
0-7803-8253-6
DOI :
10.1109/CCECE.2004.1349666
