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http://dx.doi.org/10.5515/KJKIEES.2018.29.8.632

Single Antenna Radar Sensor with FMCW Radar Transceiver IC  

Yoo, Kyung Ha (Department of Electronic Engineering, Kwangwoon University)
Yoo, Jun Young (Department of Electronic Engineering, Kwangwoon University)
Park, Myung Chul (RF Core(RF Core, Corp.))
Eo, Yun Seong (Department of Electronic Engineering, Kwangwoon University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.29, no.8, 2018 , pp. 632-639 More about this Journal
Abstract
This paper presents a single antenna radar sensor with a Ku-band radar transceiver IC realized by 130 nm CMOS processes. In this radar receiver, sensitivity time control using a DC offset cancellation feedback loop is employed to achieve a constant SNR, irrespective of distance. In addition, the receiver RF block has gain control to adjust high dynamic range. The RF output power is 9 dBm and the full chain gain of the Rx is 82 dB. To reduce the direct-coupled Tx signal to the Rx in a single antenna radar, a stub-tuned hybrid coupler is adopted instead of a bulky circulator. The maximum measured distance between the horn antenna and a metal plate target is 6 m.
Keywords
FMCW Radar; Single Antenna Radar; Hybrid Coupler; CMOS Radar IC;
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