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Low-power frequency synthesizer for multi-tone six-port radar
Publikationstyp
Conference Paper
Date Issued
2018-03-09
Sprache
English
TORE-URI
Volume
2018-January
Start Page
84
End Page
87
Citation
IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNet : 84-87 (2018-03-09)
Contribution to Conference
Publisher DOI
This paper presents an optimized 24 GHz frequency synthesizer for low-power multi-tone radar systems and discusses the underlying design considerations as well as the circuit and system concepts. Core component is a fast locking phase locked loop (PLL) with a 24 GHz voltage controlled oscillator (VCO). The system shows a total turn-on and lock time below 50 microseconds and, due to range-correlation in continuous wave (CW) short-range radar systems, still a good phase noise. With the proposed optimized system design and by intermittently transmitting, the average power consumption of the complete system was significantly reduced down to, e.g., 1 mW for 20 dual-tone signals per second.