Millimeter wave radar antenna

A millimeter-wave radar and antenna technology, which is applied in the directions of antenna, antenna coupling, antenna array, etc., can solve the problems of array antenna size limitation, disadvantage, and improve array antenna index, etc., to achieve improved isolation, large design space, and reduced interaction The effect of the coupling effect

CN110350301AInactive Publication Date: 2019-10-18张明
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-10-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a millimeter wave radar antenna. The millimeter wave radar antenna is of a cover type structure and consists of an antenna layer and an antenna cover type structural member; the antenna layer is arranged on the antenna cover type structural member, and is fixedly connected with a printed circuit board through the antenna cover type structural member; and an array antenna isprinted on the antenna layer. According to the array antenna, the occupied area of a chip is utilized, so that a larger design space is obtained; the implementation of different millimeter wave arrayantenna pattern forms is facilitated; the isolation degree between array antennas can be improved; and the mutual coupling effect between the array antennas can be reduced.
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Description

technical field

[0001] The invention belongs to the technical field of integrated circuits and relates to a millimeter-wave radar antenna, in particular to a novel millimeter-wave radar antenna structure. Background technique

[0002] Millimeter wave radar is a radar that works in the millimeter wave band. Generally, millimeter waves refer to electromagnetic waves with a frequency range of 30-300 GHz (corresponding to a wavelength of 1-10 mm). The wavelength of the millimeter wave is between the centimeter wave and the light wave, so the millimeter wave has the advantages of microwave guidance and photoelectric guidance.

[0003] The millimeter-wave radar used in automobiles refers to radars with millimeter-level wavelengths (currently mainly using 24GHz, 77GHz or 79GHz frequency bands), which can quickly and accurately obtain target information around cars and drones, such as relative distances, relative speeds, and angles , Whether there is an object, the direction of mo...

Examples

Embodiment Construction

[0019] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0020] please see figure 2 , a millimeter-wave radar antenna provided by the present invention, the millimeter-wave radar antenna is a cover-shaped structure consisting of an antenna layer 4 and a radome-shaped structural member 5; the antenna layer 4 is arranged in parallel with the printed circuit board 2, and is arranged on the radome-shaped The top surface of the structural member 5 is fixedly connected to the printed circuit board 2 through the radome-shaped structural member 5; an array antenna 7 is printed on the antenna layer 4;

[0021] The chip no...