Title :
A low-power UWB radar transceiver with fast switching wideband LNA for short-range detection
Author :
Won, You-Sun ; Yuwono, Sigit ; Jung, Jae-Hoon ; Han, Seok-Kyun ; Lee, Sang-Gug
Author_Institution :
Dept. of Electrical Engineering, KAIST, Daejeon, 305-701, Korea
Abstract :
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 mm2.
Keywords :
Abstracts; Decision support systems; FCC; Low-noise amplifiers; Transmitters; Ultra wideband radar; Low-noise amplifiers; pulse generation; switched circuits; transceivers; ultra wideband radar;
Conference_Titel :
Microwave Conference (APMC), 2014 Asia-Pacific
