Programmable-gain constant-IF-bandwidth SiGe BiCMOS upconversion micromixer at 2.4/5.8 GHz using current-mode approach

Jin Siang Syu, Wei Ling Chang, Chin-Chun Meng, Yi Chen Lin, Guo Wei Huang

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

Abstract

A 2.4/5.8-GHz dual-band programmable-gain upconverter with a constant IF bandwidth is demonstrated using 0.35-μm SiGe BiCMOS technology. Using a current-mode design approach, the input IF bandwidth remains the same at different gain settings. A dual-band LC current combiner is used at the mixer RF output to combine differential signals to a single-ended one at two bands. Then, a wideband amplifier is cascaded after the dual-band mixer. The demonstrated upconverter achieves maximum gain of -4/-3 dB at 2.4/5.8 GHz, respectively. In addition, four gain steps with 5-dB gain difference between each step are controlled by a two-bit digital circuit. The total current consumption is 26 mA at a 4-V supply.

Original languageEnglish
Title of host publicationSiRF 2017 - 2017 IEEE 17th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages121-124
Number of pages4
ISBN (Electronic)9781509052363
DOIs
StatePublished - 8 Mar 2017
Event17th IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2017 - Phoenix, United States
Duration: 15 Jan 201718 Jan 2017

Publication series

NameSiRF 2017 - 2017 IEEE 17th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems

Conference

Conference17th IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2017
Country/TerritoryUnited States
CityPhoenix
Period15/01/1718/01/17

Keywords

  • Dual-band
  • feedback amplifier
  • silicon germanium (SiGe) BiCMOS
  • upconverter

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