A 30-97 GHz Ptextsat,3dB Broadband PA with 18.5-21.5dBm Ptextsat and 18-26% PAE in 90nm SiGe Supporting Concurrent Multi-Band Operation

Zheng Liu, Emir Ali Karahan, Kaushik Sengupta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

With the evolving spectral allocations across bands ranging between 24-100 GHz, future mmWave front-ends will need to address multiple band allowing spectral agility and spectrum sharing capabilities for high capacity and robust links. Such characteristics are extremely challenging to achieve in transmitter front-ends particularly at the power amplifiers. This paper presents a broadband and efficient mmWave PA with Ptextsat,3dB bandwidth covering 30-97 GHz capable of supporting concurrent multi-band modulation operation. Implemented in GlobalFoundries 90 nm SiGe process, we employ common-base HBT transistors with broadband, yet highly efficient power combiner exploiting mix of open and short stub transmission line network. For single carrier CW operation, the proposed PA achieves 18.5-21.5 dBmPtextsat, 18-26% PAE across 106% bandwidth. We demonstrate one of the first concurrent multi-band mmWave modulation capability with three 32 QAM signals (total data rate up to 7.5 Gbps) across licensed/unlicensed spectrum of 36/39/66 GHz exhibiting 7.9/8.2/11.5 dBm linear average power and concurrent PAE of 11%. The PA exhibits one of the highestPtextsat,3dB bandwidth with peak output power exceeding 20 dBm, peak PAE greater than 25%, and concurrent multi-band capability allowing new capabilities in spectrum sharing, frequency diversity and always connected capability in resource-constrained environment.

Original languageEnglish (US)
Title of host publication2022 17th European Microwave Integrated Circuits Conference, EuMIC 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages153-156
Number of pages4
ISBN (Electronic)9782874870705
DOIs
StatePublished - 2022
Event17th European Microwave Integrated Circuits Conference, EuMIC 2022 - Milan, Italy
Duration: Sep 26 2022Sep 27 2022

Publication series

Name2022 17th European Microwave Integrated Circuits Conference, EuMIC 2022

Conference

Conference17th European Microwave Integrated Circuits Conference, EuMIC 2022
Country/TerritoryItaly
CityMilan
Period9/26/229/27/22

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation

Keywords

  • 5G
  • 6G
  • broadband
  • common-base
  • concurrent multi-band
  • frequency-diverse
  • mmWave
  • PA
  • spectrum sharing

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