# US 12,113,284 B2 · Anti-interference structure of millimeter wave antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,284 B2 - Document ID: US12113284B2 - Status: Granted - Kind: B2 - Application number: 18/015,064 - Filed: 2020-12-10 - Published: 2023-08-31 - Granted: 2024-10-08 - Earliest claimed: 2020-12-10 - Assignees: Jiangsu Kangrui New Material Technology Co., Ltd. - Applicants: Jiangsu Kangrui New Material Technology Co., Ltd. - Inventors: Wei Zhu; Qiaotao Liang; Haolin Chuang; Chinhui Lin; Tingting Yang - Web page: https://patentgrep.com/patent/US12113284B2 ## CPC - H01Q 21/0075: {Stripline fed arrays (H01Q21/065 takes precedence)} - H01Q 1/3233: {particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems} - H01Q 1/525: {between emitting and receiving antennas} - H01Q 21/065: {Patch antenna array} - H01Q 21/30: Combinations of separate antenna units operating in different wavebands and connected to a common feeder system - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract The present invention discloses an anti-interference structure of a millimeter wave antenna, comprising an emitting array antenna and/or receiving array antenna including at least one comb-shaped antenna assembly. The comb-shaped antenna assembly is provided with a long-strip-shaped antenna body and a micro-strip antenna radiation assembly; one end of the antenna body is connected with a millimeter wave circuit capable of generating millimeter waves; the micro-strip antenna radiation assembly includes a plurality of middle micro-strip antenna radiation units which are arranged on the middle section of the antenna body at intervals, and a tail-end micro-strip antenna radiation unit which is arranged at the tail end of the antenna body; and the each middle micro-strip antenna radiation unit and the tail-end antenna radiation unit are arranged on the antenna body at intervals in the same skew direction, such that the interference phenomenon of the opposite-direction noises is reduced. ## Claims ### Claim 1 An anti-interference structure of a millimeter wave antenna, characterized by comprising at least one comb-shaped assembly, wherein each comb-shaped antenna assembly is provided with a long-strip-shaped antenna body and a micro-strip antenna radiation assembly arranged on the antenna body; one end of the antenna body is configured to be connected with a millimeter wave circuit capable of generating millimeter waves; the micro-strip antenna radiation assembly includes a plurality of middle micro-strip antenna radiation units which are arranged on the middle section of the antenna body at intervals, and a tail-end micro-strip antenna radiation unit which is arranged at one end of the antenna body away from the millimeter wave circuit; and each middle micro-strip antenna radiation unit and the tail-end micro-strip antenna radiation unit are arranged on the antenna body at intervals in a skew direction; wherein an area of a middle micro-strip antenna radiation unit closer to the millimeter wave circuit is smaller than an area of a middle micro-strip antenna radiation unit away from the millimeter wave circuit; and wherein each middle micro-strip antenna radiation unit is in the shape of a rectangle with a length-to-width ratio of (1.2-1.3) to 1; and the adjacent two middle micro-strip antenna radiation units with gradually increased areas are in an area proportion of (1.1-1.2) to 1. ### Claim 2 (depends on 1) The anti-interference structure of the millimeter wave antenna of claim 1, characterized in that the skew angle between the middle micro-strip antenna radiation unit and the antenna body, and the skew angle between the tail-end micro-strip antenna radiation unit and the antenna body, are the same. ### Claim 3 (depends on 2) The anti-interference structure of the millimeter wave antenna of claim 2, characterized in that the skew angle between the middle micro-strip antenna radiation unit and the antenna body, and the skew angle between the tail-end micro-strip antenna radiation unit and the antenna body, are 45 degrees. ### Claim 4 (depends on 3) The anti-interference structure of the millimeter wave antenna of claim 3, characterized in that partially adjacent middle micro-strip antenna radiation units have the same area. ### Claim 5 (depends on 3) The anti-interference structure of the millimeter wave antenna of claim 3, characterized in that the tail-end micro-strip antenna radiation unit is in the shape of a square, a part connecting the tail-end micro-strip antenna radiation unit to the antenna body is provided with a rectangular concave notch, and the end part of the antenna body passes through the center of the concave notch and then is connected to the part of the tail-end micro-strip antenna radiation unit close to the center. ### Claim 6 (depends on 3) The anti-interference structure of the millimeter wave antenna of claim 3, characterized in that one corner of each middle micro-strip antenna radiation unit is respectively linked to the antenna body, and one end of the antenna body close to the tail-end micro-strip antenna radiation unit is provided with a bending part. ### Claim 7 (depends on 2) The anti-interference structure of the millimeter wave antenna of claim 2, characterized in that partially adjacent middle micro-strip antenna radiation units have the same area. ### Claim 8 (depends on 2) The anti-interference structure of the millimeter wave antenna of claim 2, characterized in that the tail-end micro-strip antenna radiation unit is in the shape of a square, a part connecting the tail-end micro-strip antenna radiation unit to the antenna body is provided with a rectangular concave notch, and the end part of the antenna body passes through the center of the concave notch and then is connected to the part of the tail-end micro-strip antenna radiation unit close to the center. ### Claim 9 (depends on 2) The anti-interference structure of the millimeter wave antenna of claim 2, characterized in that one corner of each middle micro-strip antenna radiation unit is respectively linked to the antenna body, and one end of the antenna body close to the tail-end micro-strip antenna radiation unit is provided with a bending part. ### Claim 10 (depends on 1) The anti-interference structure of the millimeter wave antenna of claim 1, characterized in that the skew angle between the middle micro-strip antenna radiation unit and the antenna body, and the skew angle between the tail-end micro-strip antenna radiation unit and the antenna body, are different. ### Claim 11 (depends on 10) The anti-interference structure of the millimeter wave antenna of claim 10, characterized in that one corner of each middle micro-strip antenna radiation unit is respectively linked to the antenna body, and one end of the antenna body close to the tail-end micro-strip antenna radiation unit is provided with a bending part. ### Claim 12 (depends on 1) The anti-interference structure of the millimeter wave antenna of claim 1, characterized in that one corner of each middle micro-strip antenna radiation unit is respectively linked to the antenna body, and one end of the antenna body close to the tail-end micro-strip antenna radiation unit is provided with a bending part. ### Claim 13 (depends on 1) The anti-interference structure of the millimeter wave antenna of claim 1, characterized in that the tail-end micro-strip antenna radiation unit is in the shape of a square, a part connecting the tail-end micro-strip antenna radiation unit to the antenna body is provided with a rectangular concave notch, and the end part of the antenna body passes through the center of the concave notch and then is connected to the part of the tail-end micro-strip antenna radiation unit close to the center. ### Claim 14 (depends on 1) The anti-interference structure of the millimeter wave antenna of claim 1, characterized in that partially adjacent middle micro-strip antenna radiation units have the same area. ### Claim 15 (depends on 1) The anti-interference structure of the millimeter wave antenna of claim 1, characterized in that the middle micro-strip antenna radiation units respectively have areas of different sizes, and the arrangement way of the middle micro-strip antenna radiation units is that the area of the middle micro-strip antenna radiation unit at one end close to the millimeter wave circuit is set to be smaller, and the areas of the middle micro-strip antenna radiation units at the other end away from the millimeter wave circuit are set to be gradually increased.