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 language | English (US) |
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Title of host publication | 2022 17th European Microwave Integrated Circuits Conference, EuMIC 2022 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 153-156 |
Number of pages | 4 |
ISBN (Electronic) | 9782874870705 |
DOIs | |
State | Published - 2022 |
Externally published | Yes |
Event | 17th European Microwave Integrated Circuits Conference, EuMIC 2022 - Milan, Italy Duration: Sep 26 2022 → Sep 27 2022 |
Publication series
Name | 2022 17th European Microwave Integrated Circuits Conference, EuMIC 2022 |
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Conference
Conference | 17th European Microwave Integrated Circuits Conference, EuMIC 2022 |
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Country/Territory | Italy |
City | Milan |
Period | 9/26/22 → 9/27/22 |
All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Instrumentation
Keywords
- 5G
- 6G
- PA
- broadband
- common-base
- concurrent multi-band
- frequency-diverse
- mmWave
- spectrum sharing