A Novel Doubly-Balanced Folded Mixer for Low Supply Voltage and Direct Up-Conversion System

Author

Lin, Chih-Ming ; Wei, Hung-Ju ; Wang, Yi-Ting ; Wang, Shyh-Chyi ; Wang, Yeong-Her

Author_Institution

Dept. of Electr. Eng., Nat. Cheng-Kung Univ., Tainan

fYear

2006

fDate

2006

Firstpage

1562

Lastpage

1564

Abstract

A direct up-conversion mixer from 1MHz to 2.4GHz implemented by TSMC 0.18mum 1P6M CMOS process is demonstrated. In this design, the combination of the concepts of "active dual-gate mixer" and "passive FET mixer" is used to achieve mixing effect. With the "folded" structure, this mixer can operate at low voltage (1V) normally. As the results show, the conversion gain is 2.5dB at 0dBm of LO power and the P_1db is about -3.5dBm. At the same time, the isolations of LO/input and input/output are both more than 30dB, but the isolation of LO/output is about 10~20 dB

Keywords

CMOS integrated circuits; UHF mixers; 0.001 to 2.4 GHz; 0.18 micron; 2.5 dB; CMOS process; active dual-gate mixer; direct up-conversion system; doubly-balanced folded mixer; mixing effect; passive FET mixer; Bonding; CMOS process; Capacitors; Circuit simulation; FETs; Frequency conversion; Gain measurement; Low voltage; Power measurement; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on

Conference_Location

Shanghai

Print_ISBN

1-4244-0160-7

Electronic_ISBN

1-4244-0161-5

Type

conf

DOI

10.1109/ICSICT.2006.306289

Filename

4098472