A high-performance low-power CMOS double-balanced IQ down-conversion mixer for 2.45-GHz ISM band applications

Author

Tan, Chun Geik

Author_Institution

Inst. of Microelectron., Singapore, Singapore

fYear

2003

Firstpage

457

Lastpage

460

Abstract

A 2.45GHz CMOS double-balanced IQ downconversion switching passive mixer achieves low noise figure (NF) of 16dB, high input third-intercept point (IIP3) of 2dBm, high conversion gain (CG) of 13dB, while consuming only 4-mA from a 1.8V supply. This paper also proposes a new technique for stabilizing CG, IIP3, and NF of a CMOS passive mixer from the power supply (V_DD), threshold voltage (V_TH), and temperature variations. The proposed technique dissolves the undesired variations by providing dynamic DC biasing voltages. Measurement of various test chips shows that the CG of the mixers are all within ±0.1dB for 10% V_DD variations, and within ±0.75dB for temperature of -40 to 90°C.

Keywords

CMOS integrated circuits; UHF integrated circuits; UHF mixers; low-power electronics; -40 to 90 degC; 1.8 V; 13 dB; 16 dB; 2.45 GHz; 4 mA; CMOS double-balanced IQ down-conversion switching passive mixer; ISM band; conversion gain; dynamic DC bias circuit; input third-intercept point; low-power operation; noise figure; Character generation; Circuit topology; Linearity; Mixers; Noise figure; Noise measurement; Power supplies; Radio frequency; Switches; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits (RFIC) Symposium, 2003 IEEE

ISSN

1529-2517

Print_ISBN

0-7803-7694-3

Type

conf

DOI

10.1109/RFIC.2003.1213984

Filename

1213984