US 12,444,845 B2
Antenna and radar
Zhe Cheng, Xi'an (CN); and Rui Yang, Dongguan (CN)
Assigned to Shenzhen Yinwang Intelligent Technologies Co., Ltd., Shenzhen (CN)
Filed by SHENZHEN YINWANG INTELLIGENT TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Aug. 24, 2022, as Appl. No. 17/894,399.
Application 17/894,399 is a continuation of application No. PCT/CN2021/077339, filed on Feb. 23, 2021.
Claims priority of application No. 202010115641.7 (CN), filed on Feb. 25, 2020.
Prior Publication US 2022/0416431 A1, Dec. 29, 2022
Int. Cl. H01Q 9/04 (2006.01); H01Q 1/32 (2006.01); H01Q 21/08 (2006.01)
CPC H01Q 9/045 (2013.01) [H01Q 1/3233 (2013.01); H01Q 21/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An antenna, comprising:
a first radiating element and a first feed line, wherein a first end of the first feed line is connected to the first radiating element;
the first radiating element and the first feed line are arranged on a same surface of a dielectric substrate;
the first feed line comprises a first feed line segment, and an acute angle between the first feed line segment and a current direction of the first radiating element is greater than or equal to 20 degrees, and is less than or equal to 70 degrees; and wherein a difference between a length of the first feed line segment and a preset wavelength is less than a preset value, and wherein the antenna is configured to generate an electromagnetic wave that travels through the dielectric substrate, and the preset wavelength is one half of a wavelength of the electromagnetic wave that travels through the dielectric substrate;
wherein the antenna comprises: a first power splitter, a second radiating element, and a second feed line, wherein
the first end of the second feed line is connected to the second radiating element, and is configured to feed the second radiating element;
the first power splitter, the second radiating element, the second feed line, and the first radiating element are arranged on a same surface of the dielectric substrate; and
a first end of the first power splitter is separately connected to a second end of the first feed line and a second end of the second feed line, the second radiating element and the first radiating element are symmetrically arranged on the dielectric substrate relative to the first power splitter, and the second feed line and the first feed line are symmetrically arranged on the dielectric substrate relative to the first power splitter; and
wherein the antenna further comprises:
a second power splitter and a third feed line, wherein the second power splitter, the third feed line, and the first radiating element are arranged on a same surface of the dielectric substrate;
the second power splitter and the first power splitter are centrosymmetric on the dielectric substrate relative to a center point of the second radiating element, and a second end of the first power splitter is connected to an end of the second power splitter through the third feed line; and
the third feed line comprises at least one third feed line segment, and an acute angle between each third feed line segment and the current direction of the first radiating element is greater than or equal to 20 degrees, and is less than or equal to 70 degrees.