The present invention provides a waveguide antenna having multi-fold radiation slots, and an automotive radar. The waveguide antenna having multi-fold radiation slots comprises: a waveguide antenna body; a waveguide cavity is formed inside the waveguide antenna body, multi-fold radiation slots are arranged to pass through the waveguide antenna body, and each multi-fold radiation slot comprises an upper radiation slot, a transition radiation slot, and a lower radiation slot which are connected in sequence; the upper radiation slots pass through the outer surface of the waveguide antenna body, and the lower radiation slots are in communication with the waveguide cavity; the centers of the upper radiation slots are located within a longitudinal central plane of the waveguide cavity in a signal transmission direction, and the centers of the lower radiation slots are located on two sides of the longitudinal central plane of the waveguide cavity in the signal transmission direction and are arranged with a staggered offset. According to the multi-fold radiation slots disclosed in the present invention, the centers of the upper radiation slots are aligned, allowing for optimization of the directions of side lobes and convenient suppression of the heights of the side lobes; and the lower radiation slots are in a left-right staggered arrangement, with the staggered offset following or approximating a Taylor or Chebyshev distribution, so that it is convenient to adjust and preset VSWR bandwidth and impedance characteristics are realized.
- 출원번호 : CN2025/115000
- 출원인 : SHANGHAI WAVELAND TECHNOLOGY CO., LTD.
- 특허번호 :
- IPC : H01Q-001/36(2006.01)