Millimeter-wave radar system
A millimeter-wave radar and radar technology, which is applied in the field of radar systems, can solve problems such as difficult popularization, complex millimeter-wave radar systems, and high cost, and achieve the effects of simplifying design, improving integration, and reducing costs
Pending Publication Date: 2018-11-30
CALTERAH SEMICON TECH SHANGHAI CO LTD
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Problems solved by technology
At this time, the millimeter-wave radar system is not only complicated, but also expensive, making it difficult to popularize
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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0023] figure 1 A schematic structural diagram of a millimeter-wave radar system provided by an embodiment of the present invention, figure 2 A schematic structural diagram of another millimeter-wave radar system provided by an embodiment of the present invention. This embodiment can be applied to the situation of the millimeter-wave radar system that scans and detects multiple directions, refer to figure 1 and figure 2 , the millimeter wave radar system includes: a radar chip module 110, a receiving antenna ...
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The invention discloses a millimeter-wave radar system which comprises a radar chip module, a receiving antenna array and a transmitting antenna array. The receiving antenna array comprises a plurality of single-line antennas. The transmitting antenna array comprises at least two transmitting antennas. The radar chip module comprises at least two transmitters with phase shifters, and the transmitting antennas and the transmitters are in one-to-one correspondence connection. The phase shifters are used for adjusting the phases of transmitted beams of the corresponding transmitting antennas so as to adjust the maximum gain direction of the transmitting antenna array. According to the millimeter-wave radar system, the phase shifters adjust the phases of the transmitted beams of the corresponding transmitting antennas, thus the phase differences of the transmitted beams of the adjacent transmitting antennas are adjusted so as to adjust the maximum gain direction of the transmitting antennaarray to be changed with changing of the detecting direction, the millimeter-wave radar system achieves multidirectional beam scanning, and then tracking detection of a target is achieved; and the design of the radar system is simplified, the integration level is improved, and the cost of the radar system is lowered.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of radar systems, and in particular to a millimeter wave radar system. Background technique [0002] With the popularity of millimeter-wave radar chips, especially the breakthrough of 77GHz millimeter-wave radio frequency chips in the field of CMOS technology, the demand for sensors based on millimeter-wave radar is increasing. Millimeter wave radar can be widely used in intelligent driving, intelligent robot, traffic monitoring, security imaging, smart home and other fields. [0003] At present, most millimeter-wave radars generally use fixed beams pointing in specific directions to achieve detection due to cost and design requirements. When detecting in different directions, multiple radars need to use fixed beams to detect different specific directions respectively. At this time, the millimeter-wave radar system is not only complicated, but also expensive, making it difficult to po...
Claims
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IPC IPC(8): G01S13/93G01S7/02
CPCG01S7/02G01S13/93
Inventor 王典
Owner CALTERAH SEMICON TECH SHANGHAI CO LTD