Title :
A Weak-Inversion Low-Power Active Mixer for 2.4 GHz ISM Band Applications
Author :
Do, Aaron V. ; Boon, Chirn Chye ; Do, Manh Anh ; Yeo, Kiat Seng ; Cabuk, Alper
Author_Institution :
Nanyang Technol. Univ., Singapore, Singapore
Abstract :
This work describes a fully integrated active mixer designed in 0.18 mum CMOS technology for 2.4 GHz industrial, scientific and medical (ISM) band applications. The mixer uses a source driven local oscillator (LO) to integrate the RF-LO buffering with the active mixer, and weakly inverted input MOSFETs to improve the gain and noise performance. The double-balanced quadrature mixer has a measured conversion gain of 32 dB with a double sideband (DSB) noise figure (NF) of 8.5 dB at 30 MHz intermediate frequency (IF) while consuming only 0.56 mA of current from a 1.8 V supply.
Keywords :
CMOS integrated circuits; MMIC mixers; MOSFET; UHF integrated circuits; UHF mixers; UHF oscillators; low-power electronics; microwave field effect transistors; ISM band application; MOSFET; RF-LO buffering; current 0.56 mA; double sideband noise figure; double-balanced quadrature mixer; frequency 2.4 GHz; frequency 30 MHz; gain 32 dB; industrial scientific and medical band applications; intermediate frequency; noise figure 8.5 dB; size 0.18 mum; source driven local oscillator; voltage 1.8 V; weak-inversion low-power active mixer; CMOS integrated circuits; front-end; monolithic microwave integrated circuit (MMIC) mixers; subthreshold;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2009.2032014
