RF gain control in direct conversion receivers

Jussi Ryynänen, Kalle Kivekäs, Jarkko Jussila, Aarno Pärssinen*, Kari Halonen

*Corresponding author for this work

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

5 Citations (Scopus)


This paper presents a study of LO selfmixing and RF gain control issues in direct conversion receivers. In cellular systems, that use continuous time frequency duplexing, these can constitute serious problems. The presented topic is of special importance when digitally programmable gain is implemented at the RF frequencies before the downconversion mixers, practically in the LNA. Furthermore, this paper gives circuit solutions to overcome this problem.

Original languageEnglish
Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems
Pagespp. IV-117-120
Publication statusPublished - 2002
MoE publication typeA4 Article in a conference publication
EventIEEE International Symposium on Circuits and Systems - Phoenix, United States
Duration: 26 May 200229 May 2002


ConferenceIEEE International Symposium on Circuits and Systems
Abbreviated titleISCAS
Country/TerritoryUnited States


  • BiCMOS analog integrated circuits
  • direct conversion
  • gain control
  • low noise amplifiers
  • mixers
  • radio receivers


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