4G antenna

Abstract

The utility model provides a 4G antenna, comprising a substrate (1) and a radio frequency line (5), the substrate (1) is provided with an antenna oscillator, the antenna oscillator comprises an antenna first radiator (2), an antenna second radiator (3) and an impedance matching component (4) of the antenna, the antenna second radiator (3) is connected with the impedance matching component (4), and the antenna second radiator (3) is connected with the impedance matching component (4). One end of the radio frequency line (5) is connected with the impedance matching component (4) and the antenna first radiator (2), and the other end of the radio frequency line (5) is exposed outside. The beneficial effects of the 4G antenna are that the 4G antenna does not need to be grounded, and the problems of narrow bandwidth and low interference resistance of the antenna are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and in particular to a 4G antenna. Background Art

[0002] The existing antennas have narrow bandwidth, low anti-interference performance and require the antenna to be grounded, which cannot meet the needs of users. Utility Model Content

[0003] In order to solve the problems of narrow antenna bandwidth and low anti-interference in the prior art, the utility model provides a 4G antenna, including a substrate and a radio frequency line. The substrate is provided with an antenna vibrator, the antenna vibrator includes an antenna first radiator, an antenna second radiator and an impedance matching component of the antenna, the antenna second radiator is connected to the impedance matching component, one end of the radio frequency line is connected to the impedance matching component and the antenna first radiator, and the other end of the radio frequency line is exposed.

[0004] As a further improvement of the present invention, the substrate is a PCB board.

[0005] As a further improvement of the present invention, the antenna element is a copper foil arranged on the PCB board.

[0006] As a further improvement of the present invention, the outer periphery of the second radiator of the antenna is C-shaped.

[0007] The beneficial effects of the utility model are as follows: the 4G antenna of the utility model does not require antenna grounding, and solves the problems of narrow antenna bandwidth and low anti-interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model;

[0009] Figure 2 This is a schematic diagram of C-shaped routing. DETAILED DESCRIPTION

[0010] like Figure 1 As shown, the utility model discloses a 4G antenna, including a substrate 1 and a radio frequency line 5. An antenna vibrator is arranged on the substrate 1, and the antenna vibrator includes an antenna first radiator 2, an antenna second radiator 3 and an antenna impedance matching component 4. The antenna second radiator 3 is connected to the impedance matching component 4, one end of the radio frequency line 5 is connected to the impedance matching component 4 and the antenna first radiator 2, and the other end of the radio frequency line 5 is exposed.

[0011] As a preferred embodiment of the utility model, the substrate 1 is a PCB board, and the antenna element is a copper foil arranged on the PCB board.

[0012] The first radiator 2 of the antenna is designed for the stability of the antenna and for coupling with the second radiator 3 of the antenna. The first radiator 2 of the antenna is enlarged for the anti-interference of the antenna. For example, the length of one side of the first radiator 2 of the antenna is 23.2±0.2 mm, the length of the other side of the first radiator 2 of the antenna is 43.5±0.2 mm, and the width of the first radiator 2 of the antenna is 18.2 + 0.2 mm.

[0013] like Figure 2 As shown, the outer periphery of the second radiator 3 of the antenna is C-shaped, and the antenna bandwidth is increased by the C-shaped routing method.

[0014] In summary, the utility model increases the stability and anti-interference of the antenna by enlarging the first radiator 2 of the antenna (the first radiator 2 of the antenna is a ground-fed radiator), and uses the C-type routing method of the second radiator 3 of the antenna (the second radiator 3 of the antenna is a core-fed radiator) to increase the antenna bandwidth.

[0015] 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 4G antenna, characterized in that: The invention comprises a substrate (1) and a radio frequency line (5); an antenna vibrator is arranged on the substrate (1); the antenna vibrator comprises an antenna first radiator (2), an antenna second radiator (3) and an antenna impedance matching component (4); the antenna second radiator (3) is connected to the impedance matching component (4); one end of the radio frequency line (5) is connected to the impedance matching component (4) and the antenna first radiator (2); and the other end of the radio frequency line (5) is exposed.

2. The 4G antenna according to claim 1, characterized in that: The substrate (1) is a PCB board.

3. The 4G antenna according to claim 2, characterized in that: The antenna element is a copper foil arranged on the PCB board.

4. The 4G antenna according to claim 1, characterized in that: The length of one side of the first radiator (2) of the antenna is 23.2 + 0.2 mm, the length of the other side of the first radiator (2) of the antenna is 43.5 + 0.2 mm, the width of the first radiator (2) of the antenna is 18.2 + 0.2 mm.

5. The 4G antenna according to any one of claims 1 to 4, characterized in that: The outer periphery of the second radiator (3) of the antenna is C-shaped.

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