Integrated 200–240-GHz FMCW Radar Transceiver Module
Journal article, 2013

We present a 220-GHz homodyne transceiver module intended for frequency modulated continuous wave radar applications. The RF transceiver circuits are fabricated on 3 µm-thick GaAs membranes, and consist of a Schottky diode based transmitter frequency doubler that simultaneously operates as a sub-harmonic downconverting mixer. Two circuits are used in a balanced configuration to improve the noise performance. The output power is >3 dBm over a 40-GHz bandwidth (BW) centered at 220 GHz, and the receiver function is characterized by a typical mixer conversion loss of 16 dB. We present radar images at 4-m target distance with up to 60-dB dynamic range using a 30-µs chirp time, and near-BW-limited range resolution. The module is intended for applications in high-resolution real-time 3-D radar imaging, and the unit is therefore designed so that it can be assembled into 1-D or 2-D arrays.

radar

semiconductor membrane

millimeter wave

Frequency modulated continuous wave (FMCW)

imaging radar

Schottky diode

transceiver

Author

Tomas Bryllert

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Vladimir Drakinskiy

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Ken B. Cooper

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Jan Stake

Jet Propulsion Laboratory, California Institute of Technology

IEEE Transactions on Microwave Theory and Techniques

0018-9480 (ISSN)

Vol. 61 10 3808-3815

Areas of Advance

Information and Communication Technology

Infrastructure

Nanofabrication Laboratory

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TMTT.2013.2279359

More information

Latest update

1/17/2019