STRUCTURE FOR UNIFORMLY DISTRIBUTING RADIATION ENERGY OF MILLIMETER WAVE ANTENNA

Abstract

The present invention discloses an structure for uniformly distributing radiation energy of a millimeter wave antenna, comprising an emitting array antenna and/or receiving array antenna including at least one comb-shaped antenna assembly, wherein the comb-shaped antenna assembly comprises a long-strip-shaped antenna body and a micro-strip antenna radiation assembly; one end of the antenna body can 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 the tail end of the antenna body; and the area of the middle micro-strip antenna radiation units is gradually increased from one end close to the millimeter wave circuit to the other end, such that distribution of energy outwards radiated by each middle micro-strip antenna radiation unit trends to be average.

Claims

1-17. (canceled)

18. A structure for uniformly distributing radiation energy of a millimeter wave antenna, characterized by comprising at least one comb-shaped antenna assembly which is provided with a long-strip-shaped antenna body and a micro-strip antenna radiation assembly arranged on the antenna body, wherein 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 away from the millimeter wave circuit; and the area of the middle micro-strip antenna radiation unit at one end of the antenna body away from the millimeter wave circuit is not smaller than the area of the middle micro-strip antenna radiation unit at one end close to the millimeter wave circuit.

19. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 18, characterized in that the arrangement way of the middle micro-strip antenna radiation units is that the area of the middle micro-strip antenna radiation unit closer to the millimeter wave circuit is smaller than the area of the middle micro-strip antenna radiation unit away from the millimeter wave circuit.

20. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 18, characterized in that partially adjacent middle micro-strip antenna radiation units have the same area.

21. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 19, characterized in that the shape of each middle micro-strip antenna radiation unit and the tail-end micro-strip antenna radiation unit is selected from a rectangle, a polygon or an ellipse.

22. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 21, characterized in that the middle micro-strip antenna radiation units are in the shape of a rectangle with a length-to-width ratio of (1.2-1.3) to 1.

23. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 19, characterized in that 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.

24. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 21, characterized in that the tail-end micro-strip antenna radiation unit is in the shape of a square.

25. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 19, characterized in that a part connecting the tail-end micro-strip antenna radiation unit to the antenna body is provided with a rectangular concave notch.

26. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 23, characterized in that a part connecting the tail-end micro-strip antenna radiation unit to the antenna body is provided with a rectangular concave notch.

27. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim19, characterized in that each middle micro-strip antenna radiation unit and the tail-end micro-strip antenna radiation unit are arranged on the antenna body in the same direction at a skew angle at intervals.

28. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 23, characterized in that each middle micro-strip antenna radiation unit and the tail-end micro-strip antenna radiation unit are arranged on the antenna body in the same direction at a skew angle at intervals.

29. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 27, characterized in that each middle micro-strip antenna radiation unit and the tail-end micro-strip antenna radiation unit respectively form skew angles of 45 degrees with the antenna body.

30. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 28, characterized in that each middle micro-strip antenna radiation unit and the tail-end micro-strip antenna radiation unit respectively form skew angles of 45 degrees with the antenna body.

31. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 27, characterized in that one corner of each middle micro-strip antenna radiation unit is linked to the antenna body.

32. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 28, characterized in that one corner of each middle micro-strip antenna radiation unit is linked to the antenna body.

33. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 29, characterized in that one corner of each middle micro-strip antenna radiation unit is linked to the antenna body.

34. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 30, characterized in that one corner of each middle micro-strip antenna radiation unit is linked to the antenna body.

35. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 18, characterized in that 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.

36. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 35, characterized in that a part connecting the tail-end micro-strip antenna radiation unit to the antenna body is provided with a rectangular concave notch.

37. The structure for uniformly distributing radiation energy of the millimeter wave antenna of claim 36, characterized in that each middle micro-strip antenna radiation unit and the tail-end micro-strip antenna radiation unit are arranged on the antenna body in the same direction at a skew angle at intervals.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG. 1 is a structural schematic diagram of an existing millimeter wave antenna.

[0027] FIG. 2 is a structural schematic diagram of a structure for uniformly distributing radiation energy of a millimeter wave antenna in a first embodiment of the present invention.

[0028] FIG. 3 is a partially enlarged schematic view of a middle micro-strip antenna unit in FIG. 2.

[0029] FIG. 4 is a partially enlarged schematic view of a tail-end micro-strip antenna radiation unit in FIG. 2.

[0030] FIG. 5 is a structural schematic diagram of a structure for uniformly distributing radiation energy of a millimeter wave antenna in a second embodiment of the present invention.

[0031] FIG. 6 is a structural schematic diagram of a structure for uniformly distributing radiation energy of a millimeter wave antenna in a third embodiment of the present invention.

[0032] In the drawings: 1, 10, 100 and 2, comb-shaped antenna elements

[0033] 11 and 21, antenna body

[0034] 111, bending part

[0035] 12, 120 and 1200, micro-strip antenna radiation assemblies

[0036] 121, 122 and 123, middle micro-strip antenna radiation units

[0037] 124, tail-end micro-strip antenna radiation unit

[0038] 1241, notch

[0039] 22, micro-strip antenna radiation unit

[0040] A, A0, A00 and B, millimeter wave antennas

[0041] A1, A10, A100 and B1, emitting array antennas

[0042] A2, A20, A200 and B2, receiving array antennas

[0043] C, circuit board

[0044] C1, millimeter wave circuit

[0045] L121 and L122, length of long sides

[0046] W121 and W122, length of short sides

[0047] Y, interval distance.

DETAILED DESCRIPTION OF THE INVENTION

[0048] The specific embodiments of the present invention are further illustrated in combination with the accompanying drawings and embodiments below. The embodiments below are only used to illustrate the technical solution of the present invention more clearly, and are not intended to limit the protective scope of the present invention.

[0049] As shown in FIG. 2, a structure of a millimeter wave antenna A in the embodiment 1 of the present invention includes an emitting array antenna A1 including at least one comb-shaped antenna assembly 1 and/or a receiving array antenna A2 including at least one comb-shaped antenna assembly 1, and the like. In the embodiment, the emitting array antenna A1 includes three comb-shaped antenna assemblies 1 and the receiving array antenna A2 includes four comb-shaped antenna assemblies 1. In practical application, the emitting array antenna A1 and/or the receiving array antenna A2 can respectively adjust number of the comb-shaped antenna assemblies 1 according to the needed emitting strength and receiving sensitivity of the millimeter waves. Each comb-shaped antenna assembly 1 is respectively provided with a long-strip-shaped antenna body 11 and a micro-strip antenna radiation assembly 12 arranged on the antenna body 11, one end of the antenna body 11 is connected with a millimeter wave circuit C1 on the circuit board C, and the micro-strip antenna radiation assembly 12 includes a plurality of middle micro-strip antenna radiation units 121, 122 and 123 which are sequentially arranged on the middle section of the antenna body 11 at intervals as well as a tail-end micro-strip antenna radiation unit 124 at one end of the antenna body 11 away from the millimeter wave circuit C1.

[0050] In the embodiment, the middle micro-strip antenna radiation units 121, 122 and 123 respectively have areas of different sizes; the arrangement way is that the area of the middle micro-strip antenna radiation unit 121 at one end close to the millimeter wave circuit C1 is set to be smaller, and the areas of the middle micro-strip antenna radiation units 122, 123 and the like at the other end away from the millimeter wave circuit C1 are set to be gradually increased. The shape of each of the middle micro-strip antenna radiation units 121, 122 and 123 as well as the tail-end micro-strip antenna radiation unit 124 can be a rectangle, a polygon or an ellipse and the like.

[0051] As shown in FIG. 3, a preferable embodiment of the comb-shaped antenna assembly 1 is disclosed. The middle micro-strip antenna radiation unit 121 is of a rectangular structure with length L121 of long sides of and length W121 of short sides. When the proportion of the length L121 of the long sides to the length W121 of the short sides is (1.2-1.3) to 1, a point of resonance of the middle micro-strip antenna radiation unit 121 is kept on a position close to 76.5 GHz. The adjacent middle micro-strip antenna radiation units 122 on one position are structures with similar rectangles and a fixed interval distance Y, the length of the long sides is L122, the length of the short sides is W122, and the proportion of the length L122 of the long sides to the length W122 of the short sides is (1.2-1.3) to 1; and meanwhile, a proportion of the area (the length L122 of the long sides*the length W122 of the short sides) of the middle micro-strip antenna radiation unit 122 to the area (the length L121 of the long sides*the length W121 of the short sides) of the middle micro-strip antenna radiation unit 121 on the original position is (1.1-1.2) to 1.

[0052] It can be known from the above that the middle micro-strip antenna radiation units 121, 122 and 123 are respectively in the shapes of rectangles with a length-to-width ratio limited within the range of (1.2-1.3) to 1, and the adjacent two middle micro-strip antenna radiation units with gradually increased areas are limited within the area proportion range of (1.1-1.2) to 1, and are provided with a fixed interval distance Y. Through the design with the areas gradually increased outwards, when the millimeter wave energy output from the millimeter wave circuit C1 is transmitted to the middle micro-strip antenna radiation unit 121 closest to the millimeter wave circuit C1 (the millimeter wave energy being the strongest and the radiation area being the smallest), the rest of the energy is continuously fed to the middle micro-strip antenna radiation unit 122 on the position along the antenna body 21 (the millimeter wave energy being weaker and the radiation area being bigger) after the middle micro-strip antenna radiation unit 121 outwards radiates one part of the energy, such that the middle micro-strip antenna radiation unit 122 on the position can utilize a greater radiation area to make up attenuation of the millimeter wave energy. In such a manner, the energy which is outwards radiated through the middle micro-strip antenna radiation unit 121 on the position can trend to the energy which is outwards radiated of the middle micro-strip antenna radiation unit 122 on the position, and the rest of the energy is continuously radiated outwards through the middle micro-strip antenna radiation unit 123 on the position. The middle micro-strip antenna radiation unit 123 on the position has a greater radiation area to make up attenuation of the millimeter wave energy again, such that radiation energy of the middle micro-strip antenna radiation units 121, 122 and 123 on the respective positions trends to be an average distribution state. In such a manner, the integral gain of the comb-shaped antenna assembly 1 is improved.

[0053] In practical application, through the design that ends of the middle micro-strip antenna radiation units 121, 122 and 123 are respectively linked to the antenna body 11 with one corner of the middle micro-strip antenna radiation units, the middle micro-strip antenna radiation units 121, 122 and 123 are arranged in the same direction at skew angles at intervals, such that opposite-direction interference is reduced. The skew angles as shown in the figure are 45 degrees.

[0054] As shown in FIG. 4, another preferable embodiment of the comb-shaped antenna assembly 1 is disclosed. The tail-end micro-strip antenna radiation unit 124 is in the shape of a rectangle (square), and the part connecting the tail-end micro-strip antenna radiation unit 124 to the antenna body 11 is provided with a rectangular (square) concave notch 1241. The tail end of the antenna body 11 passes through the center of the concave notch 1241 and then is connected close to the center of the tail-end micro-strip antenna radiation unit 124 . Through the peripheral fed-in design of the concave notch 1241, the number of reflections of the tail-end micro-strip antenna radiation unit 124 can be reduced. As a result, when the rest of the energy after the middle micro-strip antenna radiation units 121, 122 and 123 respectively outwards radiate energy is transmitted to the tail-end micro-strip antenna radiation unit 124 through the antenna body 11, the tail-end micro-strip antenna radiation unit 124 uniformly spreads and disperses the energy outwards from the part close to the center to further improve the integral gain.

[0055] In practical application, one end of the antenna body 11 close to the tail-end micro-strip antenna radiation unit 124 is provided with a bending part 111 for bending. The tail-end micro-strip antenna radiation unit 124 can form the same skew angles with the middle micro-strip antenna radiation units 121, 122 and 123 through the bending part 111 to further reduce the opposite-direction interference.

[0056] As shown in FIG. 5, the structure of the millimeter wave antenna A0 in the embodiment 2 of the present invention includes an emitting array antenna A10 including at least one comb-shaped antenna assembly 10 and/or a receiving array antenna A20 including at least one comb-shaped antenna assembly 10, and the like. In the embodiment, each comb-shaped antenna assembly 10 is respectively provided with a long-strip-shaped antenna body 11 and a micro-strip antenna radiation assembly 120 arranged on the antenna body 11, and one end of the antenna body 11 is connected with a millimeter wave circuit C1 on the circuit board C. The micro-strip antenna radiation assembly 120 includes a plurality of middle micro-strip antenna radiation units 121, 122 and 123 which are sequentially arranged on the middle section of the antenna body 11 at intervals as well as a tail-end micro-strip antenna radiation unit 124 arranged at one end of the antenna body 11 away from the millimeter wave circuit C1.

[0057] Through comparison between the comb-shaped antenna assembly 10 in the second embodiment with the comb-shaped antenna assembly 1 in the first embodiment, the difference is that each of the middle micro-strip antenna radiation units 121, 122 and 123 in the micro-strip antenna radiation assembly 120 at least partially has the same area. In the embodiment as shown in FIG. 5, the micro-strip antenna radiation assembly 120 is provided with two adjacent middle micro-strip antenna radiation units 121 with same smallest area closest to the millimeter wave circuit C1, and the middle micro-strip antenna radiation unit 123 with the biggest area is located on the position of the antenna body 11 away from the millimeter wave circuit C1; and two adjacent middle micro-strip antenna radiation units 122 with the same second-large area are located between the middle micro-strip antenna radiation unit 121 with the smallest area and the middle micro-strip antenna radiation unit 123 with the biggest area of the antenna body 11. In such a manner, another comb-shaped antenna assembly 10 combined structure which meets the gradually reduced area arrangement way of the middle micro-strip antenna radiation units and has a similar function is formed.

[0058] As shown in FIG. 6, the structure of the millimeter wave antenna A00 in the embodiment 3 of the present invention includes an emitting array antenna A100 including at least one comb-shaped antenna assembly 100 and/or a receiving array antenna A200 including at least one comb-shaped antenna assembly 100, and the like. In the embodiment, each comb-shaped antenna assembly 100 is respectively provided with a long-strip-shaped antenna body 11 and a micro-strip antenna radiation assembly 1200 arranged on the antenna body 11, and one end of the antenna body 11 is connected with a millimeter wave circuit C1 on the circuit board C. The micro-strip antenna radiation assembly 1200 includes a plurality of middle micro-strip antenna radiation units 121, 122 and 123 which are sequentially arranged on the middle section of the antenna body 11 at intervals as well as a tail-end micro-strip antenna radiation unit 124 arranged at one end of the antenna body 11 away from the millimeter wave circuit C1.

[0059] Through comparison between the comb-shaped antenna assembly 100 in the third embodiment and the comb-shaped antenna assembly 1 in the first embodiment, the difference is that each of the middle micro-strip antenna radiation units 121, 122 and 123 of the micro-strip antenna radiation assembly 1200 and the tail-end micro-strip antenna radiation unit 124 are co-arranged on the antenna body 11 at skew angles smaller than (or greater than) 45 degrees at intervals. In such a manner, another comb-shaped antenna assembly 100 combined structure with the similar function is formed.

[0060] In conclusion, the structure for uniformly distributing the radiation energy of the millimeter wave antenna disclosed by the present invention can achieve the effects of increasing an action distance of the millimeter waves and improving anti-interference ability by improving the gain of each comb-shaped antenna assembly.

[0061] The above are only preferred embodiments of the present invention. It should be noted that, for those ordinary skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and shall be regarded as the protection scope of the present invention.