Abstract
A CMOS transmitter frontend integrated circuit suitable for 24-GHz frequency-modulated continuous-wave (FMCW) radar applications is presented in this paper. With a transformer-based power-combining technique and pseudo-differential class-AB power amplifiers (PAs), the proposed circuit exhibits enhanced output power and efficiency at a nominal supply voltage. In addition, a voltage-controlled oscillator is incorporated for frequency modulation purposes while differential amplifiers are utilized as the driver stages for the PAs to facilitate near-saturation circuit operation. The transmitter frontend is fabricated in a 65-nm CMOS process, demonstrating an output power of 18 dBm and a power-added efficiency (PAE) of 29% at 1.2-V supply voltage.
Original language | English |
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Title of host publication | 2012 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2012 - Digest of Papers |
Pages | 137-140 |
Number of pages | 4 |
DOIs | |
Publication status | Published - 2012 Sep 28 |
Event | 2012 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2012 - Montreal, QC, Canada Duration: 2012 Jun 17 → 2012 Jun 19 |
Other
Other | 2012 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2012 |
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Country | Canada |
City | Montreal, QC |
Period | 2012/06/17 → 2012/06/19 |
Keywords
- CMOS
- FMCW
- efficiency
- power amplifier
- transmitter
ASJC Scopus subject areas
- Engineering(all)