A Four-Channel 94-GHz SiGe-Based Digital Beamforming FMCW Radar

被引：54

作者：

Jahn, Martin ^{[1
]}

Feger, Reinhard ^{[1
]}

Wagner, Christoph ^{[2
]}

Tong, Ziqiang

Stelzer, Andreas ^{[1
]}

机构：

[1] Johannes Kepler Univ Linz, Inst Commun Engn & RF Syst, Christian Doppler Lab Integrated Radar Sensors, A-4040 Linz, Austria

[2] Danube Integrated Circuits Engn DICE GmbH, A-4040 Linz, Austria

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2012年 / 60卷 / 03期

关键词：

Frequency-modulated continuous wave (FMCW); heterojunction bipolar transistors (HBTs); millimeter wave circuits; MMICs; SiGe bipolar ICs; voltage-controlled oscillators; DC-OFFSET COMPENSATION; TRANSCEIVER;

D O I：

10.1109/TMTT.2011.2181187

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a multi-channel frequency-modulated continuous-wave (FMCW) radar sensor operating in the frequency range from 91 to 97 GHz. The millimeter-wave radar sensor utilizes an SiGe chipset comprising a single signal-generation chip and multiple monostatic transceiver (TRX) chips, which are based on a 200-GHz f(T) HBT technology. The front end is built on an RF soft substrate in chip-on-board technology and employs a nonuniformly distributed antenna array to improve the angular resolution. The synthesis of ten virtual antennas achieved by a multiple-input multiple-output technique allows the virtual array aperture to be maximized. The fundamental-wave voltage-controlled oscillator achieves a single-sideband phase noise of -88 dBc/Hz at 1-MHz offset frequency. The TX provides a saturated output power of 6.5 dBm, and the mixer within the TRX achieves a gain and a double sideband noise figure of 11.5 and 12 dB, respectively. Possible applications include radar sensing for range and angle detection, material characterization, and imaging.

引用

页码：861 / 869

页数：9

共 16 条

[1] SiGe bipolar technology for automotive radar applications [J].