140 GHz Energy-Efficient OOK Receiver using Self-Mixer-Based Power Detector in 65nm CMOS

• Published in: 2022 International Conference on IC Design and Technology (ICICDT) pp. 73 - 76
• Main Authors: Mai-Khanh, Nguyen Ngoc, Yamazaki, Daisuke, Iizuka, Tetsuya
• Format: Conference Proceeding
• Language: English
• Published: IEEE 21.09.2022
• Subjects: Bit error rate; CMOS; D-band; Detectors; Frequency modulation; Low-pass filters; mixer; mm-wave; power detector; Prototypes; Receivers; Semiconductor device measurement
• ISSN: 2691-0462
• DOI: 10.1109/ICICDT56182.2022.9933075

This paper presents an integrated 140 GHz receiver in 65 nm CMOS including a power detector for high-bandwidth and power-efficient communication and radar applications. The mm-wave power detector utilizes a self-mixer scheme by the use of an NMOS transistor fed to a simple RC low-pass filter. Measured result shows that it can operate in a wide-band frequency range of 134-158 GHz and the proposed receiver occupies a small core area of 220 µm×220 µm. To realize the demodulated waveform and bit error rate (BER) measurements, we fabricated a prototype including an OOK modulator followed by the proposed receiver in a 65 nm CMOS process. The prototype successfully demonstrates a demodulated waveform and BER test at 11 Gb/s with a carrier frequency of 140 GHz. The measured BER is 2.1 × 10 −4 at 11 Gb/s and less than 1 × 10 −11 , which is a limit of the BERT, at 8 Gb/s or less. Our OOK transceiver prototype can achieve low power, high isolation, and small die area with more design freedom and suitable for mm-wave D-band communication or radar systems.