Millimeter-Wave Antennas: Configurations and Applications by Jaco du Preez & Saurabh Sinha

Author:Jaco du Preez & Saurabh Sinha
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

4.7 Integrated MIMO Antennas

As an alternative to the phased array architecture, multiple input, multiple output (MIMO) configurations have only recently been seriously investigated. A MIMO architecture (as shown in Fig. 4.16), in conjunction with an integrated transceiver, could provide several benefits for radar systems [51]. For one, using multiple transmitters means that a target of interest is illuminated from multiple directions, which can potentially negate the angle dependency of radar cross-section (RCS). However, the radar antennas need to be placed at a considerable distance from one another for this to truly have an effect [52]. Another benefit is the ability to synthesize multiple antenna elements, which is used to create virtual antenna positions, leading to a larger number of effective elements in the array.

Fig. 4.16MIMO system architecture

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