CN215377685U

CN215377685U - Antenna structure

Info

Publication number: CN215377685U
Application number: CN202120652732.4U
Authority: CN
Inventors: 雷双露; 梁胜
Original assignee: Shenzhen South Star Technology Co ltd
Current assignee: Shenzhen South Star Technology Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-12-31
Anticipated expiration: 2031-03-31

Abstract

The utility model relates to the technical field of communication equipment shells, and provides an antenna structure, which comprises: the PCB is provided with a radiation circuit and a feed point, and one end of the PCB close to the feed point is provided with a notch; and one end of the radio frequency coaxial line penetrates through the notch and then is connected with the feed point. The antenna structure solves the problem that the radio frequency coaxial line is not firmly connected with the PCB, improves the assembly efficiency of the antenna, and increases the consistency of the whole performance of the antenna.

Description

Antenna structure

Technical Field

The utility model relates to the technical field of communication equipment, in particular to an antenna structure.

Background

Pcb (printed circuit board), i.e. printed wiring board, printed circuit board for short, is one of the important parts in the electronics industry. Almost every kind of electronic equipment, as small as electronic watches, calculators, as large as computers, communication electronics, military weaponry systems, has electronic components such as integrated circuits, and printed boards are used to electrically interconnect the various components. The printed circuit board consists of an insulating bottom plate, a connecting lead and a welding disc for assembling and welding electronic elements, and has double functions of a conductive circuit and the insulating bottom plate. The circuit can replace complex wiring to realize electrical connection among elements in the circuit, thereby simplifying the assembly and welding work of electronic products, reducing the wiring workload in the traditional mode and greatly lightening the labor intensity of workers; and the volume of the whole machine is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved. The printed circuit board has good product consistency, can adopt standardized design, and is beneficial to realizing mechanization and automation in the production process. Meanwhile, the whole printed circuit board subjected to assembly and debugging can be used as an independent spare part, so that the exchange and maintenance of the whole product are facilitated. At present, printed wiring boards have been used very widely in the manufacture of electronic products.

The antenna manufactured by adopting the PCB is generally characterized in that one end of a radio frequency coaxial line is directly welded with a feed point on the PCB, the other end of the radio frequency coaxial line is connected with a host, and the middle part of the radio frequency coaxial line is not provided with any fixing device. Therefore, in the actual use process, along with the movement of the communication device, the radio frequency coaxial line and the PCB board generate relative movement, so that the welding point between the radio frequency coaxial line and the PCB board is easy to fall off, and the normal use of the antenna is affected. In addition, threading holes are also formed in some PCBs, the radio-frequency coaxial line penetrates through the threading holes from one side of the PCBs and then is welded with the feed points on the other side of the PCBs, and during assembly, due to the fact that the radio-frequency coaxial line and the threading holes are small in size, all threading efficiency is low, the welding points are easily separated from the PCBs, and the antenna is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an antenna structure to solve the problem that a radio frequency coaxial line is not firmly connected with a PCB.

In order to achieve the above object, the present invention provides an antenna structure comprising: the PCB is provided with a radiation circuit and a feed point, and one end of the PCB close to the feed point is provided with a notch; and one end of the radio frequency coaxial line penetrates through the notch and then is connected with the feed point.

Preferably, the notch is a U-shaped groove, and the width of the U-shaped groove is smaller than the diameter of the radio frequency coaxial line.

Preferably, the notch is provided with an adhesive tape.

Preferably, the tip of PCB board is equipped with and runs through the through wires hole of PCB board face, the through wires hole with the notch is linked together, just the diameter of through wires hole is greater than the width of notch.

Preferably, the open end of the notch is chamfered.

According to the above description and practice, the antenna structure of the present invention has the notch formed at one end of the PCB for clamping and fixing the rf coaxial line, so as to effectively prevent the rf coaxial line from shaking and ensure that the welding point between the rf coaxial line and the feeding point is not separated. In addition, through communicating this notch with the through wires hole on the PCB board, conveniently penetrate the radio frequency coaxial line to the threading aerial, improved the preparation packaging efficiency of antenna, still increased the holistic uniformity of antenna performance.

Drawings

Fig. 1 is a schematic structural diagram of an antenna structure according to an embodiment of the present invention.

Fig. 2 is a top view of an antenna structure according to an embodiment of the present invention.

The reference numbers in the figures are: 1. a PCB board; 2. a radiation circuit; 3. a feed point; 4. a radio frequency coaxial line; 5. a notch; 6. and (6) threading holes.

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings. The exemplary embodiments, however, may be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. In the present disclosure, the terms "include", "arrange", "disposed" and "disposed" are used to mean open-ended inclusion, and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting as to the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the utility model and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, in the embodiment, an antenna structure is provided, where the antenna structure includes a PCB board 1, a radiation circuit 2 and a feeding point 3 are disposed on a surface of the PCB board 1, and one end of a radio frequency coaxial line 4 is soldered to the feeding point 3, and inputs an electrical signal into the radiation circuit 2. Specifically, the radiation circuit 2 is provided with two feeding points 3, wherein one feeding point 3 is connected with a core wire of the radio frequency coaxial line 4, and the other feeding point 3 is connected with a ground wire of the radio frequency coaxial line 4.

In this embodiment, in order to fix the rf coaxial line 4 on the PCB and prevent the solder joint between the rf coaxial line and the feeding point 3 from falling off during the mounting process, a notch 5 is formed at one end of the PCB 1 close to the feeding point 3. The notch 5 is a U-shaped slot in this embodiment, the width of which is slightly smaller than the diameter of the rf coaxial cable 4, so that the rf coaxial cable 4 can be clamped in the notch 5 to prevent the rf coaxial cable from shaking. Of course, the notch 5 may be shaped into other shapes, and also can play a role of clamping and fixing the radio frequency coaxial line 4.

In addition, in one embodiment, the cross section of the slot 5 is further provided with an adhesive tape, and particularly, the adhesive tape can be adhered to the PCB board 1 along the cross section of the slot 5. Set up this adhesive tape, the frictional force between multiplicable radio frequency coaxial line 4 and the notch 5 ensures that the connection of radio frequency coaxial line 4 and notch 5 is more firm.

In one embodiment, the rf coaxial line 4 is not located on the same side of the PCB 1 as the radiating circuit 2, so that a threading hole 6 is formed on the PCB to guide the rf coaxial line 4 from one side of the PCB 1 to the other side. The diameter of the threading hole 6 is larger than that of the radio-frequency coaxial wire 4, or the threading hole 6 is set to be a long round hole, so that the minimum width of the threading hole is larger than that of the radio-frequency coaxial wire 4. But the welding connection point between the radio frequency coaxial line 4 and the radiation circuit 2 is easily stripped off in the threading process, and the transmission of signals is influenced. Therefore, the threading hole 6 is communicated with the notch 5, and a chamfer is arranged at the port of the notch 5, as shown in fig. 2, the opening end of the notch 5 is in a fillet structure. During the use, can directly impress radio frequency coaxial line 4 to in threading hole 6 through notch 5, in addition, still can carry out the centre gripping with notch 5 to radio frequency coaxial line 4 fixedly. The port of the notch 5 is provided with a chamfer so as to conveniently press the radio frequency coaxial line 4 into the threading hole 6.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims

1. An antenna structure, comprising:

the PCB is provided with a radiation circuit and a feed point, and one end of the PCB close to the feed point is provided with a notch;

and one end of the radio frequency coaxial line penetrates through the notch and then is connected with the feed point.

2. The antenna structure of claim 1, wherein the notch is a U-shaped slot, and the width of the U-shaped slot is less than the diameter of the radio frequency coaxial line.

3. The antenna structure according to claim 2, characterized in that the slot is provided with a glue strip.

4. The antenna structure according to any one of claims 1 to 3, wherein the end portion of the PCB board is provided with a threading hole penetrating through the board surface of the PCB board, the threading hole is communicated with the notch, and the diameter of the threading hole is larger than the width of the notch.

5. An antenna structure according to any of claims 1 to 3, wherein the open end of the slot is chamfered.