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
CountryUnited States
CityPhoenix
Period15/01/1718/01/17

Keywords

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

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