A 77-GHz SiGe integrated six-port receiver front-end for angle-of-arrival detection

Publikationstyp
Journal Article
Date Issued
2012-07-17
Sprache
English
Author(s)
Laemmle, Benjamin  
Vinci, Gabor  
Maurer, Linus  
Weigel, Robert  
Kölpin, Alexander  orcid-logo
TORE-URI
http://hdl.handle.net/11420/6770
Journal
IEEE Journal of Solid-State Circuits  
Volume
47
Issue
9
Start Page
1966
End Page
1973
Article Number
6236224
Citation
IEEE Journal of Solid-State Circuits 9 (47): 6236224 (2012-07-17)
Publisher DOI
10.1109/JSSC.2012.2201271
In this paper an integrated six-port receiver front-end for angle-of-arrival detection of 77-GHz signals is presented. Applications of the circuit are direction finding, automotive radar calibration, or high precision industrial radar. The measurement principle is based on passive superposition of two incident signals and power detection. The circuit features two input amplifiers, a broadband passive six-port network, and four power detectors. The integrated circuit has a power consumption of 95 mW with 5 V supply voltage. It is fabricated in a 200-GHz f T SiGe bipolar technology and occupies only 1028×1128 m 2. The circuit operates in a 3-dB bandwidth from 75 GHz to 84 GHz and has a responsivity of 152 kV/W at 80 GHz. A simple calibration method is proposed and all calibration parameters are calculated for different frequency values.
Subjects
Angle-of-arrival
automotive radar
calibration
interferometer
phase measurement
six-port