Design of a 2.4 GHz high-performance mixer with current bleeding topology

Wah Ching Lee, Kim Fung Tsang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The important characteristics of a mixer including high conversion gain, low noise, high dynamic range, low third-order intermodulation distortion and low unwanted leakage signals between ports have reconsidered. A double balanced Gilbert-cell with a class-A amplifier bleeding mixer (DBGC CAAB mixer) is designed and implemented. The voltage gain of 14 dB at class-A amplifier is used to magnifier the local oscillator (LO) signal. Current of class-A amplifier is injected into the Gibert mixer as a bleeding current to improve the performance of the trans-conductor stage. The DBGC CAAB mixer achieves a conversion gain of 17.5 dB at -14 dBm LO power, and the noise figure is suppressed from 45 dB to 10.7 dB. It is important to stress that the new configuration has a third-order intermodulation (HP3) at -9 dBm which is considered to be insignificant. The DBGC CAAB mixer is implemented by using 0.18-μm RFCMOS technology and operates at the 2.4 GHz ISM application with 10 MHz intermediate frequency. The power consumption is 12 mA at 1.5 V supply voltage.
Original languageEnglish
Title of host publicationIEEE 20th International Conference on Advanced Communication Technology
Subtitle of host publicationOpening New Era of Intelligent Things, ICACT 2018
PublisherIEEE
Pages98-103
Number of pages6
Volume2018-February
ISBN (Electronic)9791188428007
DOIs
Publication statusPublished - 23 Mar 2018
Event20th IEEE International Conference on Advanced Communication Technology, ICACT 2018 - Elysian Gangchon, Chuncheon, Korea, Republic of
Duration: 11 Feb 201814 Feb 2018

Publication series

NameInternational Conference on Advanced Communication Technology, ICACT
Volume2018-February
ISSN (Print)1738-9445

Conference

Conference20th IEEE International Conference on Advanced Communication Technology, ICACT 2018
CountryKorea, Republic of
CityChuncheon
Period11/02/1814/02/18

Keywords

  • Current Bleeding CMOS Mixer
  • Double balance Gilbert-cell

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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