Omnidirectional antenna with multiple frequency bands and multiple downward inclination angles

Abstract

The utility model relates to a multiband multi-downtilt omnidirectional antenna, which is characterized in that at least two support columns, at least two 2G feed panels and at least two 3.5 G feed panels are fixed on the front surface of each reflecting plate, the downtilt angles of the 2G feed panels and the 3.5 G feed panels are 0-6 degrees, and the downtilt angles of different 2G feed panels mounted on the same reflecting plate are different. The degrees of downward inclination angles of different 3.5 G feed panels mounted on the same reflecting plate are different, at least two 2G antenna oscillators are fixed on the front surface of each 2G feed panel, at least two 3.5 G antenna oscillators are fixed on the front surface of each 3.5 G feed panel, and a 2G power dividing plate and a 3.5 G power dividing plate are fixed on the back surface of each reflecting plate. The antenna has multiple frequency bands and multiple downward inclination angles, and can be applied to more scenes. The antenna provided by the utility model is an omnidirectional antenna and is convenient for outdoor coverage.

Description

Technical Field

[0001] The utility model belongs to the field of antennas in radio technology, and specifically discloses an omnidirectional antenna with multiple frequency bands and multiple downtilt angles. Background Art

[0002] The base station antenna provides wireless coverage, that is, realizes wireless signal transmission between the limited communication network and the wireless terminal. The type of antenna is closely related to the terrain, objects, and traffic distribution. For suburban environments with low traffic volume and large expected coverage area, a multi-band multi-downtilt omnidirectional antenna is urgently needed. Summary of the invention

[0003] The utility model aims to overcome the deficiencies in the prior art and provide an omnidirectional antenna with multiple frequency bands and multiple downtilt angles.

[0004] According to the technical solution provided by the utility model, the multi-band multi-downtilt omnidirectional antenna includes a bottom plate, a top plate, a support column, a coaxial cable, a coaxial cable connector, a reflector, a 2G feed board, a 3.5G feed board, a 2G antenna vibrator, a 3.5G antenna vibrator, a 2G power splitter board and a 3.5G power splitter board;

[0005] A coaxial cable connector is fixed on the lower surface of the bottom plate, at least three reflective plates are fixed on the upper surface of the bottom plate, all the reflective plates form a hollow prism, there is a gap between adjacent sides of two adjacent reflective plates, adjacent sides of two adjacent reflective plates are connected by a triangular support block, a top plate is fixed on the upper ends of all the reflective plates, at least two support columns, at least two 2G feeder boards and at least two 3.5G feeder boards are fixed on the front of each reflective plate, the downward tilt angle of the 2G feeder board is 0-6°, the downward tilt angle of the 3.5G feeder board is 0-6°, the downward tilt angle of different 2G feeder boards installed on the same reflector is different, and different 2G feeder boards installed on the same reflector have different downward tilt angles. The degree of the downtilt angle of the 3.5G feed board is different. At least two 2G antenna elements are fixed on the front of each 2G feed board, and the 2G antenna element is electrically connected to the 2G feed board. At least two 3.5G antenna elements are fixed on the front of each 3.5G feed board, and the 3.5G antenna element is electrically connected to the 3.5G feed board. A 2G power splitter board and a 3.5G power splitter board are fixed on the back of each reflector, and the 2G power splitter board is electrically connected to the 2G feed board. The 2G power splitter board is connected to the corresponding coaxial cable connector through a coaxial cable, and the 3.5G power splitter board is electrically connected to the 3.5G feed board, and the 3.5G power splitter board is connected to the corresponding coaxial cable connector through a coaxial cable.

[0006] Preferably, three reflective plates are fixed on the upper surface of the bottom plate, the three reflective plates form a hollow triangular prism, and there is a gap between adjacent sides of two adjacent reflective plates.

[0007] Preferably, three supporting columns, four 2G feed boards and four 3.5G feed boards are fixed on the front of each reflector plate, the downtilt angles of the four 2G feed boards are 0°, 2°, 4° and 6° respectively, the downtilt angles of the four 3.5G feed boards are 0°, 2°, 4° and 6° respectively, three 2G antenna elements are fixed on the front of each 2G feed board, and six 3.5G antenna elements are fixed on the front of each 3.5G feed board.

[0008] Further preferably, two 2G power division boards and two 3.5G power division boards are fixed on the back of each reflector plate, each 2G power division board is electrically connected in parallel with the two 2G feed boards, and each 3.5G power division board is electrically connected in parallel with the two 3.5G feed boards.

[0009] The utility model has multiple frequency bands and multiple downtilt angles, and can be applied to more scenarios; the utility model is an omnidirectional antenna, which is convenient for outdoor coverage. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a stereogram of the utility model.

[0011] Figure 2 It is a three-dimensional diagram of the utility model after a reflector plate is removed.

[0012] Figure 3 It is the front view of each reflector and all the components installed on the reflector. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0014] A multi-band multi-downtilt omnidirectional antenna, comprising a bottom plate 1, a top plate 2, a support column 3, a coaxial cable 4, a coaxial cable connector 5, a reflector 6, a 2G feed board 7, a 3.5G feed board 8, a 2G antenna element 9, a 3.5G antenna element 10, a 2G power splitter board 11 and a 3.5G power splitter board 12;

[0015] A coaxial cable connector 5 is fixed on the lower surface of the bottom plate 1, at least three reflecting plates 6 are fixed on the upper surface of the bottom plate 1, all the reflecting plates 6 form a hollow prism, there is a gap between adjacent sides of two adjacent reflecting plates 6, adjacent sides of two adjacent reflecting plates 6 are connected by a triangular supporting block, a top plate 2 is fixed on the upper end of all reflecting plates 6, at least two supporting columns 3, at least two 2G feeding plates 7 and at least two 3.5G feeding plates 8 are fixed on the front of each reflecting plate 6, the downward tilt angle of the 2G feeding plate 7 is 0-6°, the downward tilt angle of the 3.5G feeding plate 8 is 0-6°, different 2G feeding plates 7 installed on the same reflecting plate 6 have different downward tilt angles, different 3.5G feeding plates installed on the same reflecting plate 6 have different downward tilt angles, and The degrees of the downtilt angle of the electric board 8 are different. At least two 2G antenna elements 9 are fixed on the front of each 2G feeding board 7, and the 2G antenna element 9 is electrically connected to the 2G feeding board 7. At least two 3.5G antenna elements 10 are fixed on the front of each 3.5G feeding board 8, and the 3.5G antenna element 10 is electrically connected to the 3.5G feeding board 8. A 2G power division board 11 and a 3.5G power division board 12 are fixed on the back of each reflecting plate 6, and the 2G power division board 11 is electrically connected to the 2G feeding board 7, and the 2G power division board 11 is connected to the corresponding coaxial cable connector 5 through the coaxial cable 4, and the 3.5G power division board 12 is electrically connected to the 3.5G feeding board 8, and the 3.5G power division board 12 is connected to the corresponding coaxial cable connector 5 through the coaxial cable 4.

[0016] As a preference: Figure 1-3 As shown, three reflective plates 6 are fixed on the upper surface of the bottom plate 1. The three reflective plates 6 form a hollow triangular prism. There is a gap between the adjacent sides of two adjacent reflective plates 6. The adjacent sides of two adjacent reflective plates 6 are connected by triangular support blocks.

[0017] Three support columns 3, four 2G feed boards 7 and four 3.5G feed boards 8 are fixed on the front of each reflector 6. The downward tilt angles of the four 2G feed boards 7 are 0°, 2°, 4° and 6° respectively. The downward tilt angles of the four 3.5G feed boards 8 are 0°, 2°, 4° and 6° respectively. Three 2G antenna elements 9 are fixed on the front of each 2G feed board 7, and six 3.5G antenna elements 10 are fixed on the front of each 3.5G feed board 8.

[0018] Two 2G power division boards 11 and two 3.5G power division boards 12 are fixed on the back of each reflector 6 . Each 2G power division board 11 is electrically connected in parallel with two 2G feed boards 7 , and each 3.5G power division board 12 is electrically connected in parallel with two 3.5G feed boards 8 .

[0019] The utility model comprises four 2G feed boards 7 with three 2G antenna elements 9 mounted on each 2G feed board 7, four 3.5G feed boards 8 with six 3.5G antenna elements 10 mounted on each 3.5G feed board 8, two 2G power splitter boards 11 and two 3.5G power splitter boards 12 to form an antenna. The three antennas are formed into an omnidirectional antenna as a main antenna, which mainly generates signals with frequency bands of 1695-2690MHz and 3400-3800MHz, and forms a multi-channel antenna with the coaxial cable connector 5 through the coaxial cable 4.

[0020] In the present invention, the operating frequency band of each 2G antenna element 9 is 1695-2690 MHz, and the operating frequency band of each 3.5G antenna element 10 is 3400-3800 MHz.

[0021] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A multi-band multi-downtilt omnidirectional antenna, characterized by: It comprises a bottom plate (1), a top plate (2), a support column (3), a coaxial cable (4), a coaxial cable connector (5), a reflector (6), a 2G feed plate (7), a 3.5G feed plate (8), a 2G antenna element (9), a 3.5G antenna element (10), a 2G power splitter board (11) and a 3.5G power splitter board (12); A coaxial cable connector (5) is fixed on the lower surface of the bottom plate (1), at least three reflective plates (6) are fixed on the upper surface of the bottom plate (1), all the reflective plates (6) are surrounded by a hollow prism, there is a gap between the adjacent sides of two adjacent reflective plates (6), the adjacent sides of two adjacent reflective plates (6) are connected by a triangular support block, a top plate (2) is fixed on the upper ends of all the reflective plates (6), at least two support columns (3), at least two 2G feeder plates (7) and at least two 3.5G feeder plates (8) are fixed on the front of each reflective plate (6), the downward tilt angle of the 2G feeder plate (7) is 0-6°, the downward tilt angle of the 3.5G feeder plate (8) is 0-6°, different 2G feeder plates (7) installed on the same reflective plate (6) have different downward tilt angles, and different 3.5G feeder plates (8) installed on the same reflective plate (6) have different downward tilt angles. ) have different degrees of downtilt angle, at least two 2G antenna elements (9) are fixed on the front of each 2G feed board (7), the 2G antenna elements (9) are electrically connected to the 2G feed board (7), at least two 3.5G antenna elements (10) are fixed on the front of each 3.5G feed board (8), the 3.5G antenna elements (10) are electrically connected to the 3.5G feed board (8), and at least two 3.5G antenna elements (10) are fixed on the back of each reflector (6). There are a 2G power splitter board (11) and a 3.5G power splitter board (12), the 2G power splitter board (11) is electrically connected to the 2G feeder board (7), the 2G power splitter board (11) is connected to a corresponding coaxial cable connector (5) via a coaxial cable (4), the 3.5G power splitter board (12) is electrically connected to a 3.5G feeder board (8), and the 3.5G power splitter board (12) is connected to a corresponding coaxial cable connector (5) via a coaxial cable (4).

2. The multi-band multi-downtilt omnidirectional antenna according to claim 1, characterized in that: Three reflective plates (6) are fixed to the upper surface of the bottom plate (1), the three reflective plates (6) forming a hollow triangular prism, and a gap exists between adjacent sides of two adjacent reflective plates (6).

3. The multi-band multi-downtilt omnidirectional antenna according to claim 1, characterized in that: Three support columns (3), four 2G feed boards (7) and four 3.5G feed boards (8) are fixed on the front of each reflector (6). The downtilt angles of the four 2G feed boards (7) are 0°, 2°, 4° and 6° respectively, and the downtilt angles of the four 3.5G feed boards (8) are 0°, 2°, 4° and 6° respectively. Three 2G antenna elements (9) are fixed on the front of each 2G feed board (7), and six 3.5G antenna elements (10) are fixed on the front of each 3.5G feed board (8).

4. The multi-band multi-downtilt omnidirectional antenna as claimed in claim 3, characterized in that: Two 2G power splitting boards (11) and two 3.5G power splitting boards (12) are fixed to the back of each reflection board (6); each 2G power splitting board (11) is electrically connected in parallel to the two 2G feeder boards (7); and each 3.5G power splitting board (12) is electrically connected in parallel to the two 3.5G feeder boards (8).

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