CN204706630U - Flexible antenna structure - Google Patents

Abstract

A flexible antenna structure, comprising: a flexible medium substrate, which is a sheet structure and has a first surface, a second surface and a substrate width, wherein the flexible medium substrate further has an embedding part, the embedding part has a first reference point, a second reference point and an embedding top edge, and the substrate width gradually decreases from the first reference point and the second reference point to the embedding top edge; a circuit layer formed on at least one surface of the flexible dielectric substrate, the circuit layer being formed by at least one conductive strip line; at least one signal feed-in point, which is arranged on at least one surface of the flexible medium base material and is connected with the conductive strip line; and at least one signal grounding point which is arranged on at least one surface of the flexible medium base material and is connected with the conductive strip line.

Description

Flexible Antenna Structure

technical field

The utility model relates to an antenna structure, in particular to a flexible antenna structure. The bent surface of the antenna can be designed to adjust the bending degree of the curved surface according to the model requirements of the antenna sleeve, and then the antenna can be placed into the The antenna sleeve does not affect its antenna power.

Background technique

In the traditional antenna production in the past, after completing the design of the antenna body, it is necessary to cooperate with the assembly of the antenna shell according to the situation. brand), the housing that the antenna body is matched with may be in various shapes.

Various shapes of antenna housings have caused some problems for the antenna body. Commonly used antenna circuits on the market are arranged on hard substrates and soft substrates. When the difference between the antenna shell and the antenna body is too large for the hard substrate antenna, a larger antenna shell needs to be made to fit the antenna body. This will increase the production cost and is not in line with economic benefits. If the size of the antenna shell does not want to be changed, it must be It will be a difficult task to redesign the antenna body and require the circuit to be made smaller under the same antenna power, and the development time will be greatly increased and it is not economical. On the soft base material, although the soft base material can be curled and is competitive compared with the hard base material, some problems have also occurred one after another. When the soft base material is curled into the antenna shell, due to the The end needs to be bent and it is difficult to control the change of the curved surface. In this way, the circuits on the antenna are likely to affect each other and interfere with the frequency band of the radiated power. What is more, it is difficult to control the change of the antenna surface and may cause different circuits to contact and overlap each other. In this case It is very likely that the overall antenna will not work, and the yield rate of the antenna will be greatly reduced.

Therefore, the utility model proposes a specially designed flexible antenna structure to optimize the antenna production, so that the antenna can adapt to and maintain its power under various antenna casings.

Utility model content

Based on the desire to improve the problem of increased production costs caused by the large difference between the antenna body circuit and the antenna shell structure in the traditional antenna field, the utility model proposes a flexible antenna structure, which includes: a flexible dielectric substrate, The flexible medium substrate has a sheet structure and has a first surface, a second surface and a substrate width. The flexible medium substrate also has an insertion portion, and the insertion portion has a first A reference point, a second reference point and an embedded top edge, a circuit layer, the circuit layer is formed on at least one side of the flexible dielectric substrate, and the circuit layer is composed of at least one conductive strip line. Wherein starting from the first reference point and the second reference point, the width of the substrate decreases all the way to the insertion top edge.

Preferably, at least one signal feed-in point is further included, and the at least one signal feed-in point is arranged on at least one side of the flexible dielectric substrate and connected to the conductive strip line.

Preferably, at least one signal grounding point is further included, and the at least one signal feeding point is disposed on at least one side of the flexible dielectric substrate and connected to the conductive strip line.

Preferably, the paths from the first reference point and the second reference point to the insertion top include straight lines and curves.

Preferably, the first reference point and the second reference point are arranged at symmetrical positions.

Preferably, when the first reference point and the second reference point are arranged at symmetrical positions, the degree of inclination between the first reference point and the top edge of the insertion is the same as that between the second reference point and the insertion The top edge is sloped to the same degree.

Preferably, when the first reference point and the second reference point are arranged at symmetrical positions, the degree of inclination between the first reference point and the top edge of the insertion is the same as that between the second reference point and the insertion The slope of the top edge varies.

Preferably, the first reference point and the second reference point are arranged at asymmetric positions.

Preferably, when the first reference point and the second reference point are set at asymmetrical positions, the degree of inclination between the first reference point and the inserted top edge is the same as that between the second reference point and the set The slope of the top edge is the same.

Preferably, when the first reference point and the second reference point are set at asymmetrical positions, the degree of inclination between the first reference point and the inserted top edge is the same as that between the second reference point and the set The inclination of the top edge varies.

It can be seen from the above structure that the utility model utilizes the original antenna structure to improve it. When the flexible dielectric substrate is put into the antenna casing, the shape of the flexible dielectric substrate will not be different from the antenna casing. The attached circuit layer is deformed so that the circuit layer can maintain normal circuit performance. Moreover, based on the fact that a little processing on the original structure does not need to consume additional materials, and at the same time can reduce production costs and production time, the practical application benefits are quite high.

The above is only a brief description of each step, and details of each specific embodiment and implementation steps will be further disclosed as follows.

Description of drawings

FIG. 1 and FIG. 2 show the prior art of the flexible antenna structure.

3-5 show the first embodiment of the flexible antenna structure.

FIG. 6 shows a second embodiment of the flexible antenna structure.

FIG. 7 shows a third embodiment of the flexible antenna structure.

FIG. 8 shows a fourth embodiment of the flexible antenna structure.

Wherein, the reference signs are explained as follows:

1 Flexible media substrate

11 first side

12 second side

13 Substrate width

14 Insertion part

141 First reference point

142 Second reference point

143 Insert top edge

2 circuit layer

21 Conductive belt line

3 Signal feed points

4 signal ground

5 Antenna housing

Detailed ways

first embodiment

Please refer to FIGS. 1-5 for this embodiment. FIGS. 1 and 2 show the prior art of the flexible antenna structure, and FIGS. 3-5 show the first embodiment of the flexible antenna structure.

Please refer to FIG. 1 , which is an embodiment of the prior art. When the antenna body is put into the antenna case 5, since the inserted end does not conform to the shape of the antenna case 5, the bending of the antenna body is difficult to control and thus affects the performance of the antenna. Because the circuit is prone to coupling between circuits under the transmission of high-frequency signals, it will be very difficult to control the characteristics of the circuit when the curved surface where the circuit is located cannot predict irregular bending.

Please refer to Fig. 2, which is also a prior art, showing that when the antenna body is put into the antenna case 5, the same problem as that in Fig. 1 occurs, the antenna body undergoes unexpected distortion, but the problem in Fig. 2 It may be more serious. When the antenna is bent or even folded together, the circuits may be directly shorted to each other and cause irreversible damage, and the antenna will lose its ability to work.

In order to improve the shortcomings of the prior art, the flexible antenna structure proposed by the utility model mainly includes a flexible dielectric substrate 1 , a circuit layer 2 , a signal feeding point 3 and a signal grounding point 4 . The main technical feature is that an insertion portion 14 is designed on the flexible dielectric substrate 1 , and the insertion portion 14 enables the antenna circuit body to achieve the best matching effect with the antenna housing 5 .

Regarding the flexible medium substrate 1 in this embodiment, please refer to FIG. 3 , the flexible medium substrate 1 defines a first surface 11 , a second surface 12 and a substrate width 13 . The flexible dielectric substrate 1 is actually the dielectric material used in the general antenna manufacturing process, and circuits are printed on this dielectric material in the traditional antenna manufacturing process. Please refer to FIG. 4 , compared with the traditional dielectric material, the material of this embodiment is more flexible, which makes it easier to combine the flexible dielectric substrate 1 with the antenna case 5 . In this embodiment, the flexible medium substrate 1 is a strip-shaped flexible structure, and a first reference point 141 and a second reference point 142 are defined on the flexible medium substrate 1. and a built-in top edge 143 . Wherein, starting from the first reference point 141 and the second reference point 142, the base material width 13 decreases all the way to the insertion top edge 143 presenting a pointed structure, the purpose of which is to make the flexible The dielectric substrate 1 can be easily combined with the antenna housing 5 . Since the substrate width 13 decreases all the way to the inserted top edge 143 , when the degree of gradual decrease is large enough, the width of the inserted top edge 143 may be 0 cm.

Regarding the circuit layer 2 in this embodiment, the circuit layer 2 is formed on the flexible dielectric substrate 1, and can be formed on the first surface 11 or the second surface of the flexible dielectric substrate 1 according to user requirements. 12 or both sides at the same time, the circuit layer 2 is composed of at least one conductive strip line 21 , the conductive strip line 21 is made of conductive material, and the circuit distribution of the antenna is designed by the conductive strip line 21 . At least one signal feed point 3 and at least one signal ground point 4 are also provided on the conductive strip line 21, and the at least one signal feed point 3 and the at least one signal ground point 4 are arranged on the flexible dielectric substrate 1, and the at least one signal feeding point 3 and the at least one signal grounding point 4 need to be connected to the conductive strip line 21 for leading signals into the antenna and grounding the antenna to form a loop.

Please refer to Fig. 5, when the flexible antenna structure proposed by the present utility model is put into the antenna housing 5, because of the structure of the insertion part 14 specially designed by the flexible dielectric substrate 1, the antenna body can be easily connected with the antenna housing 5, the antenna body made of soft material will not be deformed and affect the work of the antenna because it is put into the antenna shell 5.

second embodiment

For this embodiment, please refer to FIG. 6 , which shows a second embodiment of the flexible antenna structure.

The present invention proposes another embodiment. The flexible antenna structure of this embodiment mainly includes a flexible dielectric substrate 1 , a circuit layer 2 , a signal feeding point 3 and a signal grounding point 4 . The main technical feature also lies in the design of an inserting portion 14 on the flexible dielectric substrate 1 , through which the antenna circuit body and the antenna case 5 can achieve the best matching effect.

In this embodiment, the relative positions of the first reference point 141 and the second reference point 142 on the flexible dielectric substrate 1 are specially designed so that the flexible antenna structure has different body structures. In this embodiment, the first reference point 141 and the second reference point 142 are located on two symmetrical sides, wherein the sum of the length between the first reference point 141 and the second reference point 142 is the substrate width 13 . The insertion top edge 143 of this embodiment is not equidistant from the first reference point 141 and the second reference point 142, so the inclination of the line connecting the first reference point 141 and the insertion top edge 143 is different from that between the second reference point 142 and the second reference point 142. Enter the inclination of the line connecting the top edge 143.

Through the special design of the relative positions of the first reference point 141 and the second reference point 142 , the flexible antenna structure in this embodiment can be applied to the antenna housing 5 different from the previous embodiment.

third embodiment

For this embodiment, please refer to FIG. 7 , which shows a third embodiment of the flexible antenna structure.

The present invention proposes another embodiment. The flexible antenna structure of this embodiment mainly includes a flexible dielectric substrate 1 , a circuit layer 2 , a signal feeding point 3 and a signal grounding point 4 . The main technical feature also lies in the design of an inserting portion 14 on the flexible dielectric substrate 1 , through which the antenna circuit body and the antenna case 5 can achieve the best matching effect.

In this embodiment, the relative positions of the first reference point 141 and the second reference point 142 on the flexible dielectric substrate 1 are specially designed so that the flexible antenna structure has different body structures. In this embodiment, the first reference point 141 and the second reference point 142 are located on asymmetrical sides. Wherein, the length sum between the first reference point 141 and the second reference point 142 is larger than the substrate width 13 . Moreover, the inclination of the line connecting the first reference point 141 and the insertion top edge 143 in this embodiment is designed to be equal to the inclination of the line connecting the second reference point 142 and the insertion top edge 143 .

Through the special design of the relative positions of the first reference point 141 and the second reference point 142 , the flexible antenna structure in this embodiment can be applied to the antenna housing 5 different from the previous embodiment.

Fourth embodiment

For this embodiment, please refer to FIG. 8 , which shows a fourth embodiment of the flexible antenna structure.

The present invention proposes another embodiment. The flexible antenna structure of this embodiment mainly includes a flexible dielectric substrate 1 , a circuit layer 2 , a signal feeding point 3 and a signal grounding point 4 . The main technical feature also lies in the design of an inserting portion 14 on the flexible dielectric substrate 1 , through which the antenna circuit body and the antenna case 5 can achieve the best matching effect.

In this embodiment, the relative positions of the first reference point 141 and the second reference point 142 on the flexible dielectric substrate 1 are specially designed so that the flexible antenna structure has different body structures. In this embodiment, the first reference point 141 and the second reference point 142 are located on asymmetrical sides. Wherein, the length sum between the first reference point 141 and the second reference point 142 is larger than the substrate width 13 . Moreover, the inclination of the line connecting the first reference point 141 and the insertion top edge 143 in this embodiment is designed to be different from the inclination of the line connecting the second reference point 142 and the insertion top edge 143 .

Through the special design of the relative positions of the first reference point 141 and the second reference point 142 , the flexible antenna structure in this embodiment can be applied to the antenna housing 5 different from the previous embodiment.

Looking at the whole, the flexible antenna structure provided by the utility model does have industrial application value. The above description is only a description of the preferred embodiment of the utility model, and those skilled in the art can make it according to the above description. Various other improvements, these changes still belong to the spirit of the utility model and the scope of patents defined below.

Claims (9)

1. A flexible antenna structure, characterized in that it comprises: A flexible medium substrate, the flexible medium substrate has a sheet structure and has a first surface, a second surface and a substrate width, the flexible medium substrate has an insertion part, the The insertion part has a first reference point, a second reference point and an insertion top edge; A circuit layer, the circuit layer is formed on at least one side of the flexible dielectric substrate, and the circuit layer is composed of at least one conductive strip line; Wherein, starting from the first reference point and the second reference point, the width of the substrate gradually decreases all the way to the insertion top edge, so that when the flexible medium substrate is stressed, the insertion top edge is prevented from Unexpected curl deformation affects the normal operation of the circuit layer. 2. The flexible antenna structure according to claim 1, further comprising at least one signal feeding point and at least one signal grounding point, the at least one signal feeding point and the at least one signal grounding point are arranged on At least one side of the flexible dielectric substrate is connected with the conductive strip line. 3. The flexible antenna structure according to claim 1, wherein the side between the first reference point and the inserted top edge and the side between the second reference point and the inserted top edge Contains straight lines as well as curved lines. 4. The flexible antenna structure according to claim 1, wherein the first reference point and the second reference point are arranged at symmetrical positions. 5 . The flexible antenna structure according to claim 4 , wherein the inclination degree of the first reference point and the inserted top edge is the same as the inclination degree of the second reference point and the inserted top edge. 6. The flexible antenna structure according to claim 4, wherein the degree of inclination between the first reference point and the built-in top edge is different from the degree of inclination between the second reference point and the built-in top edge . 7. The flexible antenna structure according to claim 1, wherein the first reference point and the second reference point are arranged at asymmetrical positions. 8 . The flexible antenna structure according to claim 7 , wherein the inclination degree of the first reference point and the inserted top edge is the same as the inclination degree of the second reference point and the inserted top edge. 9. The flexible antenna structure according to claim 7, wherein the degree of inclination between the first reference point and the built-in top edge is different from the degree of inclination between the second reference point and the built-in top edge .