Abstract
In this paper, we present a fully integrated RFDAC-based outphasing power amplifier (ROPA) in 40-nm CMOS that achieves 22.2 dBm peak output power with 49.2% drain efficiency at 5.9 GHz. It employs differential quasi-load-insensitive Class-E branch PAs that can dynamically be segmented using a 3-bit digital amplitude control word to improve efficiency at power back-off. At 8 dB back-off, this segmentation technique improves the ROPA drain and system efficiency by 5% and 7%, respectively, when compared to a non-segmented approach.
Original language | English |
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Title of host publication | Proceedings of the 2016 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) |
Editors | S. Mehta, L. Lin |
Place of Publication | Danvers |
Publisher | IEEE |
Pages | 206-209 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-4673-8651-7 |
ISBN (Print) | 978-1-4673-8652-4 |
DOIs | |
Publication status | Published - May 2016 |
Event | RFIC 2016: IEEE Radio Frequency Integrated Circuits Symposium - San Francisco, CA, United States Duration: 22 May 2016 → 24 May 2016 https://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=37753 |
Conference
Conference | RFIC 2016 |
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Abbreviated title | RFIC |
Country/Territory | United States |
City | San Francisco, CA |
Period | 22/05/16 → 24/05/16 |
Internet address |
Keywords
- CMOS integrated circuits
- differential amplifiers
- digital-analogue conversion
- radiofrequency power amplifiers
- CMOS
- RFDAC-based outphasing power amplifier
- ROPA drain
- complementary metal oxide semiconductor
- differential quasiload-insensitive class-E branch PA
- digital amplitude control word
- efficiency 49.2 percent
- frequency 5.9 GHz
- power back-off
- radiofrequency digital-to-analog converter
- segmentation technique
- size 40 nm
- word length 3 bit
- Bandwidth
- Dynamic range
- Loading
- Modulation
- Power generation
- Switches
- CMOS power amplifier
- Chireix combiner
- Class-E
- Outphasing power amplifier
- RFDAC