A 254 GHz CMOS Transmitter With VCO-Q Modulation

作者：Koo Hyunji^*; Kim Choul Young; Hong Songcheol

来源：IEEE Microwave and Wireless Components Letters, 2016, 26(6): 458-460.

DOI：10.1109/LMWC.2016.2562099

• ASK modulator
• ASK transmitter
• CMOS
• high efficiency
• J-band
• millimeter-wave
• terahertz communication
• wide deviation frequency modulation

This letter presents a transmitter at 254 GHz, which uses both amplitude and frequency changes of a transformer-based VCO output by control voltage. Amplitude modulation is achieved by VCO-Q modulation of the VCO with varactor control voltage (V-CONT). Wide-deviation frequency modulation is also achieved due to its wide tuning range, which improves the amplitude modulation by filtering out a low-amplitude band at a receiver. It is fabricated by a 65 nm CMOS process and demonstrates a high data rate of over 10 Gb/s and a low dc power consumption of 23 mW. The amplitude modulation is improved by 9.7 dB with an implemented receiver.

• 出版日期2016-6