A Low-Power, Subharmonic Super-Regenerative Receiver toward a Massive Multichannel FMCW Radar Close to Cut-Off Frequency
Hahn L, Vossiek M, Carlowitz C (2023)
Publication Language: English
Publication Type: Conference contribution
Publication year: 2023
Journal
Publisher: Institute of Electrical and Electronics Engineers Inc.
Book Volume: 2023-June
Pages Range: 513-516
Conference Proceedings Title: IEEE MTT-S International Microwave Symposium Digest
Event location: San Diego, CA
ISBN: 9798350347647
DOI: 10.1109/IMS37964.2023.10188187
Abstract
This paper reports for the first time on an entirely new subharmonic super-regenerative receiver (SRR) concept. Unlike in conventional SRRs, the local oscillator signal is additionally used for non-linear downconversion, enabling phase-coherent amplification. An experimental concept verification is done with a 24 GHz FMCW radar transceiver implemented using planar microstrip technology. It is shown that the subharmonic SRR down-conversion allows to significantly increase the maximum operating frequency and bandwidth. In addition, the LO power requirements are considerably reduced compared to what is typically needed in passive mixer approaches. Operated with a sinusoidal quench signal, the fabricated SRR achieves a gain greater than 60 dB with a power consumption of only 24 mW. It is explained that the concept allows also for operation near the semiconductor cutoff frequency. Due to this, and because of its simplicity, this novel concept is especially suited for scaling to integrated circuits with a high number of receive channels at very high, several 100 GHz, carrier frequencies.
Authors with CRIS profile
Leonhard Hahn
Lehrstuhl für Hochfrequenztechnik
Martin Vossiek
Lehrstuhl für Hochfrequenztechnik
Christian Carlowitz
Lehrstuhl für Hochfrequenztechnik
Additional Organisation(s)
How to cite
APA:
Hahn, L., Vossiek, M., & Carlowitz, C. (2023). A Low-Power, Subharmonic Super-Regenerative Receiver toward a Massive Multichannel FMCW Radar Close to Cut-Off Frequency. In IEEE MTT-S International Microwave Symposium Digest (pp. 513-516). San Diego, CA, US: Institute of Electrical and Electronics Engineers Inc..
MLA:
Hahn, Leonhard, Martin Vossiek, and Christian Carlowitz. "A Low-Power, Subharmonic Super-Regenerative Receiver toward a Massive Multichannel FMCW Radar Close to Cut-Off Frequency." Proceedings of the 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023, San Diego, CA Institute of Electrical and Electronics Engineers Inc., 2023. 513-516.
BibTeX: Download