2.4-GHz 8.5mW 3.7-dB NF 100-kHz 1/f corner direct-conversion receiver using double-balanced passive mixer

Jin Siang Syu*, Chin-Chun Meng, Chung Yo Lin, Shyh Chyi Wong, Guo Wei Huang, Wen Te Liu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

A 2.4-GHz direct-conversion receiver (DCR) is demonstrated using 0.18-μm CMOS technology. A passive mixer is used in this work to avoid the 1/f noise problem. Besides, a single-to-differential transformer is also used between the low-noise amplifier (LNA) and the passive mixer to perform better isolation. In addition, vertical-NPN transistors, which can be obtained in deep-n-well CMOS process without extra mask, are employed at the transconductance stage of the IF amplifiers to achieve a higher gain and lower 1/f noise than the NMOS transistors. The receiver achieves a conversion gain of 49 dB and double-sideband noise figure of 3.7 dB when the dc power consumption is 8.5 mW at a 1.8-V supply. The I/Q amplitude mismatch and phase error are below 0.3 dB and 2°, respectively, when LO frequency ranges from 2 to 3 GHz.

Original languageEnglish
Title of host publication2011 IEEE MTT-S International Microwave Symposium, IMS 2011
DOIs
StatePublished - 7 Sep 2011
Event2011 IEEE MTT-S International Microwave Symposium, IMS 2011 - Baltimore, MD, United States
Duration: 5 Jun 201110 Jun 2011

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Conference

Conference2011 IEEE MTT-S International Microwave Symposium, IMS 2011
CountryUnited States
CityBaltimore, MD
Period5/06/1110/06/11

Keywords

  • CMOS
  • Direct-conversion receiver (DCR)
  • flicker noise (1/f noise)
  • passive mixer
  • vertical-NPN (V-NPN)

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