Multiple-input Multiple-output Grating Lobe Selection Scheme for Radar Applications

Multiple-input Multiple-output Grating Lobe Selection Scheme for Radar Applications

Cancrinus, Nick (TU Delft Electrical Engineering, Mathematics and Computer Science)

Yarovoy, Alexander (mentor)
Puskely, J. (mentor)
Silveira Vaucher, C. (graduation committee)
Krasnov, O.A. (graduation committee)

Delft University of Technology

Electrical Engineering

2019-08-26

For radar applications, MIMO is often used. The problem is that the amount of available transmit- and receive channels is limited. If each channel is connected to a single antenna element, the effective aperture is small, and therefore the beamwidth is large and the angular resolution is limited. In this thesis, a novel scheme is proposed that circumvents this problem. More details are given in the full thesis. The result is an array that covers a reduced part of the visible space, with discrete beams that have improved beamwidth. The system gives the possibility to improve the angular resolution at the cost of field of view. A CST-model is made to verify this concept. In the specific example given in this thesis, the half-power beamwidth is improved from 8.4 degrees at broadside, to 5.7 degrees at broadside. At the same time the coverage is reduced from a theoretical ±90 degrees, to ±50 degrees.

grating lobe selection scheme
multiple-input multiple-output (MIMO) radar
substrate integrated waveguide (SIW)

http://resolver.tudelft.nl/uuid:f7e90fb2-ecdb-4038-952b-a9bd652dc030

2021-03-26

Student theses

master thesis

© 2019 Nick Cancrinus