A Broadband Low-Cost Direct-Conversion Receiver Front-End in 90 nm CMOS

Author

Zhan, Jing-Hong Conan ; Carlton, Brent R. ; Taylor, Stewart S.

Author_Institution

Commun. Circuit Lab., Hsinchu

Volume

43

Issue

5

fYear

2008

fDate

5/1/2008 12:00:00 AM

Firstpage

1132

Lastpage

1137

Abstract

Transistors in aggressively scaled CMOS technologies have f_T greater than 150 GHz, which exceeds requirements for most existing commercial applications below 10 GHz. Excess transistor performance can be traded-off for cost by designing out inductors. This paper presents a prototype which exploits the speed of transistors to design highly integrated broadband receiver front-ends. The inductor-less prototype operates from 2 to 5.8 GHz and dissipates 85 mW at 5 GHz while occupying 0.2 mm² active area. It provides 44 dB of gain, 3.4 dB double side band noise figure, 21 dBm in-band IIP3 in the highest gain mode and 15 dB input matching.

Keywords

CMOS integrated circuits; broadband networks; receivers; transistors; CMOS; broadband receiver front-ends; direct-conversion receiver; frequency 2 GHz to 5.8 GHz; frequency 5 GHz; gain 44 dB; inductor-less prototype; power 85 mW; transistors; 1f noise; CMOS technology; Circuits; Costs; Inductors; Linearity; Mixers; Prototypes; WiMAX; Wireless LAN; Broadband; current mode passive mixer; direct-conversion; inductor-less; low-cost; receiver; resistive feedback;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/JSSC.2008.920358

Filename

4494672