Mimo antenna with improved grating lobe characteristics

A technology for antennas and transmitting antennas, applied to antenna arrays that are energized separately, independent non-interactive antenna combinations, antennas, etc., can solve problems such as high cost and complex multi-layer feedback structure
CN104901022AInactive Publication Date: 2015-09-09DELPHI TECH INC
0 Cites 34 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DELPHI TECH INC
Publication Date
2015-09-09
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A multiple input multiple output (MIMO) antenna (110, 210, 410, 510, 610, 710) for a radar system that includes a first transmit antenna (122, 222, 422, 522, 622, 722), a second transmit antenna (124, 224, 424, 524, 624, 724), and a receive antenna (120, 220, 420, 520, 620, 720). The first transmit antenna is configured to emit a first radar signal toward a target. The first transmit antenna is formed of a first vertical array (132, 232) of radiator elements (136, 236). The second transmit antenna is configured to emit a second radar signal toward the target. The second transmit antenna (110) is formed of a second vertical array (134, 234) of radiator elements (136, 236) distinct from the first vertical array (132). The receive antenna is configured to detect radar signals reflected by a target toward the receive antenna. The receive antenna is formed of a plurality of paired vertical arrays (250) of detector elements (252).
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present application discloses MIMO antennas with improved grating lobe characteristics. The present disclosure relates to multiple-input multiple-output (MIMO) antennas for radar systems, and more particularly to configuring transmit and receive antennas to improve grating lobe performance of the antennas. Background technique

[0002] Many ground vehicle (eg automotive) radar systems in use today are only capable of determining the range and horizon or azimuth to a target or object. The transmit and receive antennas of such systems are typically vertical arrays of radiator and detector elements or patches, respectively. However, it has been recognized that it is desirable to determine the vertical or elevation angle to the object so that elevated objects such as overhanging bridges or buildings are not inadvertently determined as objects in the vehicle's path of travel.

[0003] Since automotive radar systems are particularly sensitive to cost f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More