A 245 GHz ASK modulator and demodulator with 40 Gbits/sec data rate in 0.13 μm SiGe BiCMOS technology

Abstract

This paper presents a 245 GHz ASK modulator and demodulator capable of 40 Gbit/s operation. The design is based on 0.13 μm SiGe BiCMOS technology. The chip includes a 245 GHz SPST switch, a wide-band driver amplifier, and an ASK demodulator. The ASK demodulator consists of a power detector followed by a wide-band high gain amplifier. The modulator consumes 31 mW and the demodulator consumes 100 mW.