Dual-frequency wifi soft board built-in antenna

Abstract

The utility model relates to the technical field of wireless communication, in particular to a dual-frequency wifi soft board built-in antenna. The antenna comprises an FPC board and a coaxial line, the FPC board is provided with a pair of symmetrically coupled antenna oscillators, each antenna oscillator comprises a 5.8 G radiator and a 2.4 G radiator, the 5.8 G radiator is connected with the 2.4 G radiator, each antenna oscillator is provided with a feeding point, and one end of the coaxial line is connected with the feeding points of the pair of antenna oscillators. According to the utility model, the FPC soft board design is adopted, the problem of uneven environment during antenna installation is solved, and the antenna can be installed and attached even if the size is small. The symmetrical coupling design is adopted, so that the directional diagram is relatively circular. The same antenna size can solve the problems of multiple frequencies, difficulty in installation in a client machine environment and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless communication technical field, especially a kind of dual-frequency wifi soft board built-in antenna. BACKGROUND

[0002] Now there is mostly used hard board PCB board or do single frequency, antenna design is also adopted irregular line.For the uneven installation environment of antenna or the installation environment of small volume machine, hard board PCB board has the problem of difficult installation, and in this installation environment, hard board PCB board or single frequency antenna will appear the problem of non-circularity of radiation pattern, leading to uneven signal coverage, communication quality decline and other problems. INVENTION CONTENTS

[0003] The utility model provides a kind of dual-frequency wifi soft board built-in antenna, to solve the problem of uneven environment and small volume when installing existing hard board PCB board or single frequency antenna and non-circularity of radiation pattern.

[0004] The utility model provides a kind of dual-frequency wifi soft board built-in antenna, including FPC board, coaxial line, the FPC board is equipped with a pair of symmetrical coupling antenna oscillator, each antenna oscillator includes 5.8G radiator and 2.4G radiator, 5.8G radiator is connected with 2.4G radiator, each antenna oscillator is equipped with feed point, one end of coaxial line is connected with the feed point of a pair of antenna oscillator.

[0005] As a further improvement of the utility model, the end of the 2.4G radiator is provided with a turning wire structure.

[0006] As a further improvement of the utility model, the 2.4G radiator is provided with a straight line part and a turning part, the straight line part extends linearly to the end of the FPC board, the turning part is connected to the end of the straight line part, and the turning part is parallel to the end of the FPC board or inwardly turned to the center of the FPC board.

[0007] As a further improvement of the utility model, one end of the 2.4G radiator is connected to the middle part of the 5.8G radiator.

[0008] As a further improvement of the utility model, the feed point is arranged at one end of the 5.8G radiator close to the center of the FPC board.

[0009] As a further improvement of the utility model, the FPC board is pasted at the head and tail to form a ring structure.

[0010] As a further improvement of the utility model, the FPC board is pasted on the cambered surface.

[0011] The utility model discloses a beneficial effect is: adopt FPC soft board design, solved the uneven environment and small volume when installing antenna and can install attachment. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the overall structural drawing of the dual-frequency wifi soft board built-in antenna of the utility model,

[0013] Fig. 2 It is the structure diagram of FPC board in the utility model. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is further detailed below with the drawings and examples.

[0015] As Figs. 1-2 The utility model discloses a dual-frequency wifi soft board built-in antenna, including FPC board 1, coaxial line 2, be equipped with a pair of symmetrical coupling's antenna oscillator 3 on FPC board 1, and each antenna oscillator 3 includes 5.8G radiator 4 and 2.4G radiator 5, 5.8G radiator 4 is connected with 2.4G radiator 5, and is equipped with the feed point 6 on each antenna oscillator 3, and one end of coaxial line 2 is connected the feed point 6 of a pair of antenna oscillator 3.

[0016] The product adopts the form of FPC structure + CABLE line, and the line length can be freely adjusted according to the whole machine condition; the patent adopts FPC soft board design, solves the uneven environment and small volume when installing antenna and can install attachment. The antenna oscillator 3 is a pair of symmetrical radiators, and the two end radiators are also designed to turn, so that the antenna volume can be reduced by one third. The antenna adopts symmetrical coupling design, and the directional diagram is relatively round.

[0017] The end of the 2.4G radiator 5 is provided with a turning wire structure. Specifically, the 2.4G radiator 5 is provided with a straight portion 51 and a turning portion 52, the straight portion 51 extends straight to the end portion of the FPC board 1, the turning portion 52 is connected to the end of the straight portion 51, and the turning portion 52 is parallel to the end portion of the FPC board 1 or is turned inward to the center of the FPC board.

[0018] If the 2.4G radiator 5 is straight out without turning and bending, the antenna will exceed the existing 40MM length, greatly increasing the length and volume of the antenna, and after the 2.4G radiator 5 is bent, the short space advantage of the 5.8G radiator 4 can be utilized, so that the problem of small volume is solved.

[0019] One end of the 2.4G radiator 5 is connected to the middle of the 5.8G radiator 4. The butt joint of the 2.4G radiator 5 and the 5.8G radiator 4 is close to the center of the FPC plate 1, so that the area covered by the 5.8G radiator 4 can be fully utilized to lay the 2.4G radiator 5, and the volume of the FPC plate 1 can be made smaller, and the butt joint position in the middle also reserves the position of the feed point 6 of the 5.8G radiator 4.

[0020] The feed point 6 is arranged at one end of the 5.8G radiator 4 close to the center of the FPC plate 1. The feed point 6 is arranged close to the center and is located at the symmetry center of a pair of antenna dipoles 3, so that the feed signal can be concentrated and gathered to the coaxial line 2 for transmission.

[0021] The FPC plate 1 is pasted to form a ring structure. Alternatively, the FPC plate 1 is pasted on the arc surface. The material of the soft plate FPC used in the utility model can be installed on a whole machine with an arc surface. The FPC plate 1 has release paper pasted on the back surface when leaving the factory, and a hand tearing position 7 is reserved. The hand tearing position 7 is used to tear the release paper from the FPC plate 1. The FPC antenna has 3M glue on the back surface, which can be pasted in a ring shape or on various arc surfaces.

[0022] The dual-frequency wifi soft plate built-in antenna can be installed in a small volume and uneven machine environment through the structural design of the FPC plate 1. The antenna dipoles 3 of the 5.8G radiator 4 and the 2.4G radiator 5 realize multi-frequency transmission. The structure of the symmetrically coupled antenna dipoles 3 makes the antenna radiation pattern more circular, the signal coverage is uniform, the communication quality is improved, and the antenna efficiency value is ensured.

[0023] The above is a further detailed description of the utility model in combination with a specific preferred embodiment, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, which should be regarded as falling within the protection scope of the utility model.

Claims

1. A dual-band WiFi soft board built-in antenna, characterized in that, The application relates to a coaxial line and a FPC plate, the FPC plate is provided with a pair of symmetrical coupled antenna dipoles, each of the antenna dipoles comprises a 5.8G radiator and a 2.4G radiator, the 5.8G radiator is connected with the 2.4G radiator, each of the antenna dipoles is provided with a feeding point, and one end of the coaxial line is connected with the feeding points of the pair of antenna dipoles.

2. The dual-band WiFi soft board in-built antenna according to claim 1, wherein, The end of the 2.4G radiator is provided with a turning wire structure.

3. The dual-band WiFi soft board in-built antenna according to claim 2, wherein, The 2.4G radiator is provided with a straight line part and a turning part, the straight line part extends linearly to the end of the FPC plate, the turning part is connected at the end of the straight line part, and the turning part is parallel to the end of the FPC plate or is turned inward to the center of the FPC plate.

4. The dual-band WiFi soft board in-built antenna according to claim 1, wherein, One end of the 2.4G radiator is connected to the middle part of the 5.8G radiator.

5. The dual-band WiFi soft board-in antenna according to claim 1, wherein, The feeding point is arranged at one end of the 5.8G radiator close to the center of the FPC plate.

6. The dual-band WiFi soft board in-built antenna according to claim 1, wherein, The FPC plate is pasted at the head and tail to form a ring structure.

7. The dual-band WiFi soft board in-built antenna according to claim 1, wherein, The FPC plate is pasted on an arc surface.

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