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A Continuous Sweep-Clock-Based Time-Expansion Impulse-Radio Radar
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- Authors
- Piljae Park, Sungdo Kim
- Issue Date
- 2018-09
- Citation
- IEEE Transactions on Circuits and Systems I : Regular Papers, v.65, no.9, pp.3049-3059
- ISSN
- 1549-8328
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- This paper presents a single-chip impulse-radio (IR) radar transceiver that utilizes a novel continuous sweep-clock generator. While requiring low power and small area, the proposed clock generator enables a versatile IR radar operation with millimeter resolution. The radar detection range and update rate are adjustable by an on-chip delay command circuit or by an external master. The IR radar transceiver, working with transmission and reception clocks, incorporates a spectrum adjustable transmitter and a wide-band sampling receiver. The recovered echo pulses from the radar are distinguishable in an expanded time scale. For the first time, generalized analyses on the radar range for time-expansion IR radars are established. The single chip radar transceiver is fabricated in a 130-nm CMOS technology occupying a chip area of 1.0 mm2. The measurements show that the echo pulses are recovered with a millimeter range resolution, while dissipating 30 mW. Respiration motions are successfully captured with the prototype radar.
- KSP Keywords
- CMOS Technology, Chip area, Radar detection range, Radar transceiver, Range resolution, Single chip, Spectrum adjustable, Time Scale, Update rate, Wide band, clock generator