A 6–20 GHz 400-MHz Modulation-Bandwidth CMOS Transmitter IC

Ali Raza Saleem, Saeed Naghavi, Mahwish Zahra, Kari Stadius, Marko Kosunen, Lauri Anttila, Mikko Valkama, Jussi Ryynänen

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

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Abstract

This paper presents a transmitter IC with two identical signal paths, including base-band amplifier, up-converting mixer, and power amplifier (PA) stages. The design is focused on wide modulation bandwidth, and the use of a resonatorless small die-area class-D power amplifier at cm-wave frequencies. This work also incorporates a local oscillator (LO) signal distribution network with phase tuning elements. The circuit is implemented in a 22-nm CMOS process, and the active die area is 0.8 mm2. Operation over the 6–20 GHz range of carrier frequencies through the transmission of both continuous wave (CW) and wideband quadrature phase shift keying (QPSK) modulated signals were verified with measurements. Results with 20/40/100, and 400 MHz modulation bandwidths are presented, and for instance for a 20-MHz QPSK modulated input signal the measured adjacent channel leakage ratio (ACLR) of the transmitter is 28 dBc and error vector magnitude (EVM) is 5%.
Original languageEnglish
Title of host publication2022 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS)
PublisherIEEE
Number of pages4
ISBN (Electronic)978-1-6654-8823-5
DOIs
Publication statusPublished - 2022
Publication typeA4 Article in conference proceedings
EventIEEE International Conference on Electronics, Circuits and Systems - Glasgow, United Kingdom
Duration: 23 Nov 202025 Nov 2020

Conference

ConferenceIEEE International Conference on Electronics, Circuits and Systems
Country/TerritoryUnited Kingdom
CityGlasgow
Period23/11/2025/11/20

Keywords

  • Semiconductor device measurement
  • Phase measurement
  • Transmitters
  • Power amplifiers
  • Resonant frequency
  • Frequency measurement
  • Wideband
  • CMOS
  • transmitter
  • 5G
  • QPSK
  • wideband modulation
  • beamforming
  • power amplifier
  • class-D

Publication forum classification

  • Publication forum level 1

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