A Dual-Channel 15 Gb/s PRBS Generator for a D-Band PMCW Radar Transmitter in 22 nm FDSOI

Probst F, Engelmann A, Koch M, Weigel R (2023)

Publication Language: English

Publication Status: Accepted

Publication Type: Conference contribution

Future Publication Type: Conference contribution

Publication year: 2023

Event location: Melbourne, Florida

DOI: 10.1109/wamicon57636.2023.10124888

Abstract

This work proposes an integrated baseband signal generator with multiple orthogonal outputs for phase-modulated continuous-wave (PMCW) radar. The circuit combines a linear-feedback shift register (LFSR), producing an m-sequence at a chip rate of 15 Gb/s, with a digitally implemented outer code (OC) generator. Different channels can be distinguished at the receiver through a slow-time modulation of the pseudo-random binary sequence (PRBS) with different Hadamard codes. The generator is integrated into a 1700×1300 μm² double-channel D-band radar transmitter on a 22nm fully-depleted silicon on insulator (FDSOI) technology, of which only 73×80 μm² are devoted to the baseband generator. A measurement setup is presented, where the transmitter’s D-band output signal is externally down-converted and sampled using a high-speed oscilloscope. In a series of offline digital signal processing (DSP) steps including correlation, accumulation and another correlation, the functionality of the proposed generator is demonstrated.

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APA:

Probst, F., Engelmann, A., Koch, M., & Weigel, R. (2023). A Dual-Channel 15 Gb/s PRBS Generator for a D-Band PMCW Radar Transmitter in 22 nm FDSOI. In Proceedings of the IEEE Wireless and Microwave Technology Conference, WAMICON 2023. Melbourne, Florida, US.

MLA:

Probst, Florian, et al. "A Dual-Channel 15 Gb/s PRBS Generator for a D-Band PMCW Radar Transmitter in 22 nm FDSOI." Proceedings of the IEEE Wireless and Microwave Technology Conference, WAMICON 2023, Melbourne, Florida 2023.

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