Waveguide antenna applied to 4D imaging millimeter wave radar

Abstract

The invention relates to a waveguide antenna applied to a 4D imaging millimeter wave radar, and relates to the technical field of antennas, and the waveguide antenna applied to the 4D imaging millimeter wave radar comprises a pyramid horn antenna module and a radio frequency board module. The pyramid horn antenna module is located above the radio frequency board module, and the pyramid horn antenna module is connected with the radio frequency board module. On the basis that the pyramidal horn antenna module and the radio frequency board module are arranged in an overlapped mode, a transmitting waveguide antenna and a receiving waveguide antenna are arranged in the antenna function part in a rectangular distribution mode, and a transmitting radio frequency chip, a receiving radio frequency chip, a transmitting antenna array element and a receiving antenna array element are correspondingly arranged in the radio frequency board module. According to the waveguide antenna structure, the layout difficulty of the antenna on the PCB is reduced, the difficulty and the cost in the antenna preparation process can be reduced, and batch production is realized.

Description

technical field [0001] The present application relates to the field of antenna technology, and in particular, to a waveguide antenna applied to a 4D imaging millimeter-wave radar. Background technique [0002] The main function of the antenna is energy conversion and directional radiation. Therefore, any electromagnetic wave radiation and reception need to use the antenna. In autonomous driving scenarios, the antennas used in millimeter-wave radars with 4D imaging capabilities are mostly microstrip array antennas. [0003] In the related art, the microstrip array antenna in the millimeter wave radar is directly etched and formed on a printed circuit board (Printed Circuit Board, PCB). [0004] However, in the related art, the antenna directly etched and formed on the PCB board needs to adopt a relatively difficult process in the application scenario of adapting to the radar with the function of 4D imaging, which makes the realization process complicated; therefore, it is ap...

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Problems solved by technology

[0004] However, in the related art, the antenna formed by etching directly on the PCB needs to adopt a relatively difficult process in the application scenario of adapting the radar with 4D imaging function, which makes the realization process complicated; therefore, it is applied to 4D The manufacture of imaging radar antennas is relatively difficult and expensive

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