A Fast Settling Phase Modulator for Outphasing Transmitters in 65-nm CMOS

作者：Yahalom Gilad^*; Dawson Joel L

来源：IEEE Transactions on Microwave Theory and Techniques, 2014, 62(9): 2048-2058.

DOI：10.1109/TMTT.2014.2337288

• CMOS integrated circuits
• phase modulation
• phase shifters
• RF integrated circuits

We present a phase modulator architecture with very fast settling time for use in high data-rate outphasing transmitters. The proposed design utilizes the phase-shifting capabilities of a resonant tank and the ability to separately control the circuit properties via its components. A prototype in 65-nm CMOS achieves 9 bits of effective resolution, with a fast settling time of less than five carrier cycles to within 1. The circuit is also tested as a standalone transmitter showing an error vector magnitude of less than 5% for 8-PSK modulation at maximum data rate of 240Mb/s, meeting the Federal Communications Commission requirements for operation at the medical implant communication services band.

• 出版日期2014-9
• 单位MIT