Millimeter-Wave Technology for Automotive Radar Sensors in the 77 GHz Frequency Band

2012 ◽  
Vol 60 (3) ◽  
pp. 845-860 ◽  
Author(s):  
Jürgen Hasch ◽  
Eray Topak ◽  
Raik Schnabel ◽  
Thomas Zwick ◽  
Robert Weigel ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Frequency Band ◽  
Automotive Radar ◽  
Radar Sensors ◽  
Wave Technology ◽  
77 Ghz

Antenna Concepts for Millimeter-Wave Automotive Radar Sensors

2012 ◽  
Vol 100 (7) ◽  
pp. 2372-2379 ◽  
Author(s):  
W. Menzel ◽  
A. Moebius
Keyword(s):  
Millimeter Wave ◽  
Automotive Radar ◽  
Radar Sensors

Planar 180° hybrid coupler with non-interspersed ports for millimeter-wave applications

2019 ◽  
Vol 12 (4) ◽  
pp. 293-302
Author(s):  
Jaber Moghaddasi ◽  
Ke Wu
Keyword(s):  
Millimeter Wave ◽  
Structural Parameters ◽  
Wave Frequency ◽  
Superior Performance ◽  
Matrix Approach ◽  
Automotive Radar ◽  
Excellent Candidate ◽  
Hybrid Coupler ◽  
77 Ghz ◽  
Good Agreement

AbstractThis paper presents a simple topology of 180° hybrid coupler with non-interspersed inputs and outputs, as opposed to the conventional rat-race topology. Such hybrid coupler topologies with inputs located on one side and outputs at the opposite side simplify the design of signal routings and module packaging when integrated with other circuits and components. It also relaxes the necessity of using auxiliary compensating components such as tapers, jumpers, and crossovers. The proposed coupler topology is theoretically analyzed through a T-matrix approach. The analysis comes up with design equations and diagrams that help choose the structural parameters for the desired specification. The simplicity and also the immunity against intrinsic parasitic effects within the proposed topology make it an excellent candidate for operation over any RF and millimeter-wave frequency bands, for applications such as automotive radar or E-band backhaul radio. To this end, a coupler based on the proposed scheme is realized for operation over 77 GHz and assessed through on-wafer measurements. Good agreement of the measured results with the simulated and analytical counterparts demonstrates the superior performance of the proposed 180° hybrid coupler.

Angular measurements in azimuth and elevation with 77 GHz radar sensors

2013 ◽  
Vol 5 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Klaus Baur ◽  
Marcel Mayer ◽  
Steffen Lutz ◽  
Thomas Walter
Keyword(s):  
Elevation Angle ◽  
Azimuth Angle ◽  
Radar Signal ◽  
Automotive Radar ◽  
Radar Sensor ◽  
Radar Sensors ◽  
Dielectric Lens ◽  
Angular Measurements ◽  
Array Structure ◽  
77 Ghz

An antenna concept for direction of arrival estimation in azimuth and elevation is proposed for 77 GHz automotive radar sensors. This concept uses the amplitude information of the radar signal for the azimuth angle and the phase information for the elevation angle. The antenna consists of a combination of a series-fed-array structure with a cylindrical dielectric lens. This concept is implemented into a radar sensor based on SiGe MMICs for validation. A two- and a four-beam configuration are presented and discussed with respect to angular accuracy and ambiguities.

VANET-Assisted Interference Mitigation for Millimeter-Wave Automotive Radar Sensors

IEEE Network ◽  
2020 ◽  
Vol 34 (2) ◽  
pp. 238-245
Author(s):  
Mengyuan Zhang ◽  
Shibo He ◽  
Chaoqun Yang ◽  
Jiming Chen ◽  
Junshan Zhang
Keyword(s):  
Millimeter Wave ◽  
Interference Mitigation ◽  
Automotive Radar ◽  
Radar Sensors

Target simulator concept for chirp modulated 77 GHz automotive radar sensors

2014 ◽  
Author(s):  
Steffen Lutz ◽  
Christian Erhart ◽  
Thomas Walte ◽  
Robert Weigel
Keyword(s):  
Automotive Radar ◽  
Radar Sensors ◽  
77 Ghz
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