A low-power UWB radar transceiver with fast switching wideband LNA for short-range detection

This paper presents a short-range UWB radar that extends the detection-range. The minimum detectable-range is shortened by the adoption of an LNA with fast-switching operation, whereas the maximum detectable-range is improved by a wideband transceiver. To minimize the power dissipation, the radar tr...

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Bibliographic Details
Main Authors: Won, You-Sun, Yuwono, Sigit, Jung, Jae-Hoon, Han, Seok-Kyun, Lee, Sang-Gug
Format: Conference Proceeding
Language:English
Subjects:
Abstracts
Decision support systems
FCC
Low-noise amplifiers
pulse generation
switched circuits
transceivers
Transmitters
Ultra wideband radar
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Summary:This paper presents a short-range UWB radar that extends the detection-range. The minimum detectable-range is shortened by the adoption of an LNA with fast-switching operation, whereas the maximum detectable-range is improved by a wideband transceiver. To minimize the power dissipation, the radar transceiver is turned on/off in synchronization with transmit pulses. The proposed radar operates at 4 GHz with 1 GHz bandwidth, and measurements show the detectable-range of 0.1 to 1.5 m for an antenna gain of 2 dBi while consuming 2.13 nJ/pulse from a 1.2 V supply at 1 MHz PRF. The chip occupies an area of 1.98 mm 2 .
ISSN:2165-4727
2165-4743