CN212725581U - Multi-frequency band FPC antenna - Google Patents
Multi-frequency band FPC antenna Download PDFInfo
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- CN212725581U CN212725581U CN202021702286.5U CN202021702286U CN212725581U CN 212725581 U CN212725581 U CN 212725581U CN 202021702286 U CN202021702286 U CN 202021702286U CN 212725581 U CN212725581 U CN 212725581U
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Abstract
The embodiment of the application discloses a multi-band FPC antenna, which comprises an FPC board and an antenna radiating body which is arranged on the FPC board and has a rectangular structure; the antenna radiator comprises an antenna main body and an antenna coupling body which are mutually connected, and a gap is arranged between the antenna main body and the antenna coupling body; the gap comprises a first gap section with a trapezoid structure, a second gap section with a rectangular structure, a third gap section with a trapezoid structure, a fourth gap section with a strip structure and a fifth gap section with a circular structure, wherein the second gap section is communicated with the first gap section, the fourth gap section is communicated with the fourth gap section, and the fifth gap section is communicated with the fourth gap section. The antenna can keep the original 2G, 3G and 4G frequency bands, has the frequency band of 5G, Sub6G, has the advantages of high gain and good directivity, and achieves good practical use effect.
Description
Technical Field
The utility model relates to an antenna technology field especially relates to a multifrequency section FPC antenna.
Background
The age of 5G has quietly come, and various intelligent network products are available at present, such as: vehicle-mounted central control, notebook computers, network televisions and the like need to be upgraded and updated in the 5G era. However, since the traditional 2G, 3G and 4G are still mainstream in the market, how to be compatible with multiple frequency bands becomes a problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a multifrequency section FPC antenna can be when keeping original 2G, 3G, 4G frequency channels, has 5G, Sub6G frequency channels again, has high gain moreover, advantage that the directionality is good, has reached good in-service use effect.
In order to achieve the technical purpose, the utility model provides a multiband FPC antenna, which comprises a FPC board and an antenna radiator with a rectangular structure, wherein the antenna radiator is arranged on the FPC board;
the antenna radiator comprises an antenna main body and an antenna coupling body which are mutually connected, and a gap is arranged between the antenna main body and the antenna coupling body;
the gap comprises a first gap section with a trapezoid structure, a second gap section with a rectangular structure, a third gap section with a trapezoid structure, a fourth gap section with a strip structure and a fifth gap section with a circular structure, wherein the second gap section is communicated with the first gap section, the fourth gap section is communicated with the fourth gap section, and the fifth gap section is communicated with the fourth gap section.
In some embodiments, the second slit section communicates with the upper bottom of the first slit section, the short waist of the third slit section communicates with the lower bottom of the first slit section, and the fourth slit section communicates with the lower bottom corner of the first slit section, which is formed by the long waist and the lower bottom.
In some embodiments, the length of the second slit segment is less than the length of the upper base of the first slit segment, and the length of the short waist of the third slit segment is less than the length of the lower base of the first slit segment.
In some embodiments, the width of the fourth slit segment is gradually reduced from the position of the lower bottom corner of the first slit segment, which is formed by the long waist and the lower bottom, to the position of the fifth slit segment.
In some embodiments, the fifth slot segment is provided at a connection of the antenna body and the antenna coupling body. In some embodiments, the multi-band FPC antenna further comprises a feed point, the feed point being disposed on the antenna coupling body and near a connection of the fourth slot segment and the fifth slot segment.
In some embodiments, the multi-band FPC antenna further includes a ground point, the ground point is disposed on the antenna main body and near a connection between the fourth slot segment and the fifth slot segment, and the feed point and the ground point are disposed opposite to each other.
In some embodiments, the multi-band FPC antenna further includes a coaxial cable and a pad, and the antenna radiator and the coaxial cable are fixed by the pad.
In some embodiments, the antenna radiator has an overall dimension of (125.2 ± 0.15mm) (51.4 ± 0.15mm) ((8 ± 0.15 mm)).
The beneficial effect that above-mentioned technical scheme brought lies in:
the scheme can keep the original 2G, 3G and 4G frequency bands, has the frequency band of 5G, Sub6G, has the advantages of high gain and good directivity, and achieves good practical use effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a multi-band FPC antenna according to an embodiment of the present invention;
the antenna comprises an antenna body 1, an antenna coupling body 2, a slot 3, a slot 31, a first slot section 32, a second slot section 33, a third slot section 34, a fourth slot section 35, a fifth slot section, a feed point 4 and a grounding point 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "X axis", "Y axis", "Z axis", "vertical", "parallel", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
The utility model provides a multi-band FPC antenna, which comprises a FPC board and an antenna radiator which is arranged on the FPC board and has a rectangular structure;
the antenna radiator comprises an antenna body 1 and an antenna coupling body 2 which are connected with each other, wherein the antenna body 1 is of an L-shaped structure, the antenna coupling body 2 is of a strip structure, and the antenna body 1 and the antenna coupling body achieve required antenna performance through coupling, so that a gap 3 is formed between the antenna body 1 and the antenna coupling body 2.
The gap 3 includes a first gap section 31 having a trapezoid structure, a second gap section 32 having a rectangular structure and communicated with the first gap section 31, a third gap section 33 having a trapezoid structure, a fourth gap section 34 having a bar structure, and a fifth gap section 35 having a circular structure and communicated with the fourth gap section 34.
Specifically, the second slit section 32 is communicated with the upper bottom of the first slit section 31, and the length of the second slit section 32 is smaller than that of the upper bottom of the first slit section 31; the short waist of the third slit section 33 is communicated with the lower bottom of the first slit section 31, and the short waist and the long waist of the third slit section 33 are both shorter than the lower bottom of the first slit section 31; the fourth slit section 34 communicates with the lower bottom corner of the first slit section 31, which is formed by the long waist and the lower bottom, and the width of the fourth slit section 34 is gradually reduced from the position of the lower bottom corner of the first slit section 31, which is formed by the long waist and the lower bottom, to the position of the fifth slit section 35.
In a preferred embodiment, the fourth slot segment 34 is a symmetrical structure, the center of the fifth slot segment 35 is located on the center line of the fourth slot segment 34, and the fifth slot segment 35 is disposed at the connection point between the antenna body 1 and the antenna coupling body 2.
For communication connection with the circuit, the multi-band FPC antenna described above further comprises a feed point 4 and a ground point 5. The feed point 4 is disposed on the antenna coupling body 2 and close to the connection between the fourth slot segment 34 and the fifth slot segment 35, the ground point 5 is disposed on the antenna main body 1 and close to the connection between the fourth slot segment 34 and the fifth slot segment 35, and the feed point 4 and the ground point 5 are disposed opposite to each other.
In addition, the multi-band FPC antenna further comprises a coaxial cable and a bonding pad, the antenna radiating body is fixed with the coaxial cable through the bonding pad, and the coaxial cable is connected with the feed point 4 and the grounding point 5 and then connected with the board end through installing connectors of different types, so that the antenna can be suitable for different use environments.
In order to make the connection of the antenna radiator to the coaxial cable more stable, the pads may be reinforced with UV glue.
The size of the whole antenna radiator is as follows: (125.2 ± 0.15mm) (51.4 ± 0.15mm) ((8 ± 0.15 mm)).
The vertical distance from the center of the fifth slot segment 35 to the edge of one side of the antenna radiator is 19.59 ± 0.3mm, the vertical distance from the center of the fifth slot segment 35 to the edge of the other side of the antenna radiator is 26.2 ± 0.3mm, the vertical distance from the edge of the second slot segment 32, which is parallel to the edge of one side of the antenna radiator and is close to the fifth slot segment 35, to the edge of one side of the antenna radiator is 93.5 ± 0.3mm, the vertical distance from the short waist of the first slot segment 31 to the edge of one side of the antenna radiator is 113 ± 0.3mm, and the vertical distance from the feed point 4 to the edge of the other side of the antenna radiator is 28.3 ± 0.3 mm.
One side of the antenna radiator is: the antenna body 1 and the antenna coupling body 2 of the antenna radiator are connected to form one side, and the other side of the antenna radiator is perpendicular to the one side of the antenna radiator and close to the position of the grounding point 5.
When the multi-band FPC antenna is tested, the antenna is fixed on a rotating plane of a darkroom, the antenna is connected to a port of a network analyzer, a detection horn antenna is used for collecting data, and another standard gain horn antenna is used for calibrating the data. As shown in table 1 below, the efficiency and gain of the antenna are shown:
TABLE 1 efficiency and gain of the antenna
As can be seen from Table 1, the antenna provided by the scheme has better efficiency and gain in all frequency bands of 699 Mhz-960 Mhz, 1428 Mhz-1690 Mhz, 1710 Mhz-2690 Mhz, and 3300 Mhz-5800 Mhz.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A multiband FPC antenna comprises an FPC board and is characterized by also comprising an antenna radiating body which is arranged on the FPC board and has a rectangular structure;
the antenna radiator comprises an antenna main body and an antenna coupling body which are mutually connected, and a gap is arranged between the antenna main body and the antenna coupling body;
the gap comprises a first gap section with a trapezoid structure, a second gap section with a rectangular structure, a third gap section with a trapezoid structure, a fourth gap section with a strip structure and a fifth gap section with a circular structure, wherein the second gap section is communicated with the first gap section, the fourth gap section is communicated with the fourth gap section, and the fifth gap section is communicated with the fourth gap section.
2. The multi-band FPC antenna of claim 1, wherein the second slot segment communicates with an upper base of the first slot segment, a short waist of the third slot segment communicates with a lower base of the first slot segment, and the fourth slot segment communicates with a lower base corner of the first slot segment, the lower base corner being formed by a long waist and a lower base.
3. The multi-band FPC antenna of claim 2, wherein the length of the second slot segment is less than the length of the upper base of the first slot segment, and the length of the short waist of the third slot segment is less than the length of the lower base of the first slot segment.
4. The multi-band FPC antenna of claim 2, wherein the width of the fourth slot segment is gradually decreased from the position of the lower bottom corner of the first slot segment, which is formed by the long waist and the lower bottom, to the position of the fifth slot segment.
5. The multi-band FPC antenna of claim 1, wherein the fifth slot segment is provided at a junction of the antenna main body and the antenna coupling body.
6. The multi-band FPC antenna of claim 5, further comprising a feed point disposed on the antenna coupling body and near a connection of the fourth slot segment and the fifth slot segment.
7. The multi-band FPC antenna of claim 6, further comprising a ground point disposed on the antenna body and near a connection between the fourth slot segment and the fifth slot segment, wherein the feed point is disposed opposite to the ground point.
8. The multi-band FPC antenna of claim 1, further comprising a coaxial cable and a pad, wherein the antenna radiator and the coaxial cable are fixed by the pad.
9. The multi-band FPC antenna of any one of claims 1-8, wherein the overall size of the antenna radiator is: (125.2 ± 0.15mm) (51.4 ± 0.15mm) ((8 ± 0.15 mm)).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021702286.5U CN212725581U (en) | 2020-08-14 | 2020-08-14 | Multi-frequency band FPC antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021702286.5U CN212725581U (en) | 2020-08-14 | 2020-08-14 | Multi-frequency band FPC antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212725581U true CN212725581U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021702286.5U Active CN212725581U (en) | 2020-08-14 | 2020-08-14 | Multi-frequency band FPC antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212725581U (en) |
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- 2020-08-14 CN CN202021702286.5U patent/CN212725581U/en active Active
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