PCB antenna

Abstract

The utility model provides a PCB antenna, comprising a circular PCB (1) and three groups of oscillators and coaxial cables (3) arranged on the circular PCB (1), each group of oscillators radiate at least 120 degrees, a gap is arranged between adjacent oscillators, the center of the circular PCB (1) is provided with a through hole, a welding plate around the through hole on the front surface of the circular PCB (1) is a core feed (4), and the core feed (4) is a coaxial cable. The ground feed (2) is arranged around the through hole in the back surface of the circular PCB (1), an inner conductor of the coaxial cable (3) is inserted into the through hole and is welded with the core feed (4), an outer conductor of the coaxial cable (3) is welded with the ground feed (2), and each group of oscillators are respectively connected with the core feed (4) and the ground feed (2). The PCB antenna provided by the utility model has the beneficial effects that the PCB antenna provided by the utility model solves the problem that individual radiation angles are poor when wires are horizontally placed, and improves the transmission efficiency of signals.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a PCB antenna. Background Art

[0002] In the existing environment, WIFI PCB antennas are generally implemented in dipole form. When placed horizontally, the antenna will always have one or two angles where radiation is poor, thus affecting signal reception and effective signal transmission. Utility Model Content

[0003] In order to solve the problem of individual radiation angle differences when antennas are placed horizontally in the prior art, the utility model provides a PCB antenna.

[0004] The utility model discloses a PCB antenna, comprising a circular PCB board and three groups of vibrators and coaxial cables arranged on the circular PCB board, each group of vibrators radiates at least 120 degrees, gaps are arranged between adjacent vibrators, a through hole is arranged at the center of the circular PCB board, a core feed is formed around the through hole on the front side of the circular PCB board, a ground feed is formed around the through hole on the back side of the circular PCB board, an inner conductor of the coaxial cable is inserted into the through hole and welded to the core feed, an outer conductor of the coaxial cable is welded to the ground feed, and each group of vibrators is connected to the core feed and the ground feed respectively.

[0005] As a further improvement of the utility model, each group of the vibrators includes a pair of symmetrically arranged radiation patches A1 and radiation patches A2, the radiation patches A1 of each group of the vibrators are arranged on the front side of the circular PCB board, and the radiation patches A1 are connected to the core feed, and the radiation patches A2 of each group of the vibrators are arranged on the back side of the circular PCB board, and the radiation patches A2 are connected to the ground feed.

[0006] As a further improvement of the present invention, each of the radiation patches A1 and the radiation patches A2 have the same structure and include a connecting arm, a first branch and a second branch. Each connecting arm is respectively provided with the first branch and the second branch. One end of the connecting arm of the radiation patch A1 arranged on the front side of the circular PCB board is connected to the core feed, and one end of the connecting arm of the radiation patch A2 arranged on the back side of the circular PCB board is connected to the ground feed.

[0007] As a further improvement of the present invention, the first branch end of each of the radiation patch A1 and the radiation patch A2 is bent toward the through hole.

[0008] As a further improvement of the present invention, the first branch on each connecting arm is arranged at the edge of the circular PCB board, the second branch on each connecting arm is arranged between the through hole and the first branch, and the first branch is longer than the second branch.

[0009] As a further improvement of the present invention, the first branch is in an arc shape, and the second branch is in a rectangular shape or any other shape.

[0010] The beneficial effects of the utility model are as follows: the PCB antenna of the utility model solves the problem of individual radiation angle differences when the wires are placed horizontally, thereby improving the transmission efficiency of signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the front view of the PCB antenna of the utility model;

[0012] Figure 2 This is the back view of the PCB antenna of the utility model;

[0013] Figure 3 This is the structure diagram of the PCB antenna of the utility model;

[0014] Figure 4 It is a side view of the PCB antenna of the utility model. DETAILED DESCRIPTION

[0015] like Figure 1-4 As shown, the utility model discloses a PCB antenna, comprising a circular PCB board 1 and three groups of vibrators and coaxial cables 3 arranged on the circular PCB board 1, each group of vibrators radiates at least 120 degrees, and gaps are provided between adjacent vibrators. A through hole is provided in the center of the circular PCB board 1, and the welding plate around the through hole on the front side of the circular PCB board 1 is a core feed 4, and the through hole around the back side of the circular PCB board 1 is a ground feed 2, the inner conductor of the coaxial cable 3 is inserted into the through hole and welded to the core feed 4, and the outer conductor of the coaxial cable 3 is welded to the ground feed 2, and each group of vibrators is connected to the core feed 4 and the ground feed 2 respectively.

[0016] Each group of the vibrators includes a pair of symmetrically arranged radiation patches A1 and radiation patches A2. The radiation patches A1 of each group of the vibrators are arranged on the front side of the circular PCB board 1, and the radiation patches A1 are connected to the core feed 4. The radiation patches A2 of each group of the vibrators are arranged on the back side of the circular PCB board 1, and the radiation patches A2 are connected to the ground feed 2.

[0017] Three radiation patches A1 are arranged on the front side of the circular PCB board 1, and three radiation patches A2 are arranged on the back side of the circular PCB board 1. Each radiation patch A1 and radiation patch A2 is F-shaped and symmetrical.

[0018] Each of the radiation patches A1 and A2 has the same structure and includes a connecting arm 5, a first branch 6, and a second branch 7. The first branch 6 and the second branch 7 are respectively provided on each connecting arm 5, and the first branch 6 on each connecting arm 5 is provided on the edge of the circular PCB board 1. One end of the connecting arm 5 of the radiation patch A1 arranged on the front side of the circular PCB board 1 is connected to the core feed 4, and one end of the connecting arm 5 of the radiation patch A2 arranged on the back side of the circular PCB board 1 is connected to the ground feed 2.

[0019] The end of the first branch 6 of each of the radiation patches A1 and A2 is bent toward the through hole, and the bent portions of the ends of the first branch 6 of adjacent oscillators correspond to each other.

[0020] The second branch 7 on each connecting arm 5 is arranged between the through hole and the first branch 6, the first branch 6 is longer than the second branch 7, the first branch 6 is arc-shaped, and the second branch 7 is of any shape, preferably rectangular.

[0021] The front and back sides of the circular PCB board 1 together form three pairs of vibrators, namely vibrator 1, vibrator 2, and vibrator 3. When the vibrators are excited by electrical signals passing through the coaxial cable 3, each pair of vibrators can radiate at least 120 degrees, so that the antenna can meet the radiation direction requirement of 360 degrees.

[0022] The PCB antenna of the utility model is based on the fact that the individual radiation angles of antennas are different in a horizontal environment, and a circular PCB is used to solve the problem.

[0023] The beneficial effects of the utility model are as follows: the PCB antenna of the utility model solves the problem of individual radiation angle differences when the antenna is placed horizontally, thereby improving the transmission efficiency of the signal.

[0024] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A PCB antenna, characterized in that: The invention comprises a circular PCB board (1) and three groups of vibrators and coaxial cables (3) arranged on the circular PCB board (1), each group of vibrators radiates at least 120 degrees, and gaps are provided between adjacent vibrators. A through hole is provided at the center of the circular PCB board (1), a core feed (4) is welded around the through hole on the front side of the circular PCB board (1), and a ground feed (2) is arranged around the through hole on the back side of the circular PCB board (1). The inner conductor of the coaxial cable (3) is inserted into the through hole and welded to the core feed (4), and the outer conductor of the coaxial cable (3) is welded to the ground feed (2), and each group of vibrators is connected to the core feed (4) and the ground feed (2) respectively.

2. The PCB antenna according to claim 1, characterized in that: Each group of the vibrators comprises a pair of symmetrically arranged radiation patches A1 and radiation patches A2, wherein the radiation patches A1 of each group of the vibrators are arranged on the front side of the circular PCB board (1), and the radiation patches A1 are connected to the core feed (4), and the radiation patches A2 of each group of the vibrators are arranged on the back side of the circular PCB board (1), and the radiation patches A2 are connected to the ground feed (2).

3. The PCB antenna according to claim 2, characterized in that: Each of the radiation patches A1 and A2 has the same structure, and both include a connecting arm (5), a first branch (6), and a second branch (7). Each connecting arm (5) is provided with the first branch (6) and the second branch (7), respectively. One end of the connecting arm (5) of the radiation patch A1 arranged on the front side of the circular PCB board (1) is connected to the core feed (4), and one end of the connecting arm (5) of the radiation patch A2 arranged on the back side of the circular PCB board (1) is connected to the ground feed (2).

4. The PCB antenna according to claim 3, characterized in that: The end of the first branch (6) of each of the radiation patches A1 and A2 is bent toward the through hole.

5. The PCB antenna according to claim 3, characterized in that: The first branch (6) on each connecting arm (5) is arranged at the edge of the circular PCB board (1), and the second branch (7) on each connecting arm (5) is arranged between the through hole and the first branch (6), and the first branch (6) is longer than the second branch (7).

6. The PCB antenna according to claim 5, characterized in that: The first branch (6) is in an arc shape, and the second branch (7) is in a rectangular shape or any other shape.

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