CN215119203U - Foldable plate-shaped directional antenna - Google Patents
Foldable plate-shaped directional antenna Download PDFInfo
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- CN215119203U CN215119203U CN202121658514.8U CN202121658514U CN215119203U CN 215119203 U CN215119203 U CN 215119203U CN 202121658514 U CN202121658514 U CN 202121658514U CN 215119203 U CN215119203 U CN 215119203U
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- directional antenna
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Abstract
The utility model discloses a collapsible platy directional aerial, it includes the reflecting plate and locates the antenna panel of reflecting plate top, the antenna panel pass through collapsible supporting mechanism with the reflecting plate is connected, makes the antenna panel is relative the reflecting plate is kept away from to expand or is close to and folds up. The utility model makes the antenna plate far away from the reflection plate to be unfolded through the foldable support mechanism, and the distance between the antenna plate and the reflection plate is the largest at the moment, so that the antenna plate is in a normal working state; and folding the antenna plate close to the reflecting plate, wherein the distance between the antenna plate and the reflecting plate is minimum, the folded plate-shaped directional antenna is in a storage state of the antenna plate, and the thickness of the folded plate-shaped directional antenna can be reduced to about one third of that of the unfolded plate-shaped directional antenna. The utility model provides a collapsible plate-like directional aerial not only folds up the antenna effectively through collapsible supporting mechanism and is favorable to accomodating and transporting, does not influence gain, the work bandwidth of antenna moreover.
Description
Technical Field
The utility model relates to the technical field of antennas, especially, relate to a collapsible plate-like directional aerial.
Background
The plate-shaped directional antenna is composed of an antenna plate and a reflecting plate, and in order to achieve maximum radiation efficiency, maximum gain and a wide operating frequency band, the distance between the radiating antenna plate and the reflecting plate is generally designed to be about one-quarter wavelength. When the working frequency is relatively low, the volume of the antenna is relatively large, for example, when the working frequency is 300MHz, the distance between the radiation mechanism and the reflecting plate reaches 250 mm.
However, in some special applications, such as field, direction-finding activities, etc., where emergency communication is required, a miniaturized antenna is required for convenient transportation and folding. Limited by antenna theory, the miniaturization of the existing antenna is usually conditioned by sacrificing the gain and the operating bandwidth of the antenna. Therefore, there is a need to develop an antenna which can be contracted in volume at ordinary times and can be quickly built when used.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the present invention provides a foldable plate-shaped directional antenna.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
a foldable plate-shaped directional antenna comprises a reflecting plate and an antenna plate arranged above the reflecting plate, wherein the antenna plate is connected with the reflecting plate through a foldable supporting mechanism, so that the antenna plate is far away from or close to the reflecting plate for folding.
As a preferred embodiment of the foldable plate-shaped directional antenna provided in the present invention, the foldable supporting mechanism is a Z-shaped folding mechanism, an X-shaped folding mechanism, or a multi-stage folding mechanism.
As a preferred embodiment of the foldable plate-shaped directional antenna provided in the present invention, the multi-section folding mechanism includes an upper connecting seat, an upper connecting rod, a middle connecting seat, a lower connecting rod, and a lower connecting seat; the upper connecting seat is arranged on the antenna plate; two ends of the upper connecting rod are respectively and rotatably connected to the upper connecting seat and the middle connecting seat; the lower connecting seat is arranged on the reflecting plate; and two ends of the lower connecting rod are respectively and rotatably connected with the middle connecting seat and the lower connecting seat.
As a preferred embodiment of the foldable plate-shaped directional antenna provided in the present invention, the upper connection seat is provided with an upper rotation guide portion; the lower connecting seat is provided with a lower rotation guide part; the middle connecting seat is provided with two middle rotating guide parts.
As a preferred embodiment of the foldable plate-shaped directional antenna provided in the present invention, the upper rotation guide portion and the middle rotation guide portion have opposite guiding directions; the guiding directions of the lower rotating guide part and the middle rotating guide part are opposite.
As the utility model provides a preferred embodiment of foldable plate-like directional antenna, multistage formula folding mechanism still includes spacing portion for the restriction the turned angle who rotates the connection is 90.
As a preferred embodiment of the foldable plate-shaped directional antenna provided in the present invention, the two ends of the upper link are provided with the limiting portions; the two ends of the lower connecting rod are provided with the limiting parts.
As a preferred embodiment of the foldable plate-shaped directional antenna provided in the present invention, the foldable supporting mechanism is made of plastic.
As a preferred embodiment of the foldable plate-shaped directional antenna provided in the present invention, the antenna plate is connected to the reflection plate through at least 3 foldable support mechanisms.
As the present invention provides a preferred embodiment of the foldable plate-shaped directional antenna, the antenna board is a PCB board antenna or a planar radiation plate structure.
As the present invention provides a preferred embodiment of the foldable plate-shaped directional antenna, after the foldable supporting mechanism is unfolded, the distance between the antenna plate and the reflecting plate is one quarter of the wavelength of the working frequency of the antenna.
As a preferred embodiment of the foldable plate-shaped directional antenna provided in the present invention, the antenna plate has a radio frequency cable feeder.
The utility model discloses following beneficial effect has:
the utility model provides a collapsible platy directional aerial utilizes collapsible supporting mechanism to couple together reflecting plate and antenna panel to realize unfolding or folding up of antenna panel, can be relative the reflecting plate is kept away from and is shown the state of expansion or be close to and show the state of folding up. The antenna plate is unfolded away from the reflecting plate through the foldable supporting mechanism, and the distance between the antenna plate and the reflecting plate is the largest at the moment, so that the antenna plate is in a normal working state; and folding the antenna plate close to the reflecting plate, wherein the distance between the antenna plate and the reflecting plate is minimum, the folded plate-shaped directional antenna is in a storage state of the antenna plate, and the thickness of the folded plate-shaped directional antenna can be reduced to about one third of that of the unfolded plate-shaped directional antenna. The utility model provides a collapsible plate-like directional aerial not only folds up the antenna effectively through collapsible supporting mechanism and is favorable to accomodating and transporting, does not influence gain, the work bandwidth of antenna moreover.
Drawings
Fig. 1 is a perspective view of the foldable plate-shaped directional antenna according to the present invention in an unfolded state;
fig. 2 is a schematic diagram of the unfolding state of the foldable support mechanism in the foldable plate-shaped directional antenna according to the present invention;
fig. 3 is a perspective view of the foldable plate-shaped directional antenna of the present invention in a folded state;
fig. 4 is a schematic diagram of the foldable supporting mechanism of the foldable plate-shaped directional antenna according to the present invention in a folded state.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below 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 efforts shall belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present embodiment provides a foldable plate-shaped directional antenna, which includes:
a reflection plate 1;
an antenna plate 2 located above the reflection plate 1;
and the foldable support mechanism 3 is used for connecting the reflection plate 1 and the antenna plate 2 so as to drive the antenna plate 2 to be unfolded relative to the reflection plate 1 or to be folded relative to the reflection plate 1 through the foldable support mechanism 3.
The antenna board 2 is a PCB board antenna or a planar radiation board structure, and may be other board antenna structures. The antenna board 2 is connected with a radio frequency cable feeder 4, specifically, the radio frequency cable feeder 4 can pass through a through hole on the reflector board 1, so that the radio frequency cable feeder 4 can move along with the up-and-down movement of the antenna board 2, and the radio frequency cable feeder 4 does not need to be arranged on the outer side of the reflector board 1. It should be noted that the radio frequency cable feeder 4 may not pass through the reflector 1.
The foldable support mechanism 3 is made of plastic and can be made of other insulating materials. The foldable supporting mechanism 3 is a Z-type folding mechanism, an X-type folding mechanism, or a multi-stage folding mechanism, but is not limited thereto. It is understood that the foldable supporting mechanism 3 may also be other foldable mechanisms, and when the foldable supporting mechanism 3 is unfolded, the distance between the antenna board 2 and the reflection board 1 is only one quarter of the wavelength of the operating frequency of the antenna. When the designed working frequency is 750MHz, the distance between the antenna plate 2 and the reflecting plate 1 after spreading is about 100 mm.
In this embodiment, the foldable support mechanism 3 is preferably a multi-section folding mechanism. Preferably, the antenna board 2 is connected to the reflection board 1 through at least 3 foldable support mechanisms 3, and the design is such that the antenna board 2 performs the stability of the unfolding or folding action and the stability of the working state formed between the unfolded antenna board and the reflection board 1.
Specifically, the multi-section folding mechanism includes an upper connecting seat 31, an upper connecting rod 32, a middle connecting seat 33, a lower connecting rod 34 and a lower connecting seat 35 which are connected in sequence; the upper connecting seat 31 and the lower connecting seat 35 are respectively arranged on the antenna plate 2 and the reflecting plate 1; two ends of the upper connecting rod 32 are respectively rotatably connected to the upper connecting seat 31 and the middle connecting seat 33 through a rotating shaft 36; both ends of the lower link 34 are rotatably connected to the middle and lower connection seats 33 and 35 through a rotation shaft 36, respectively. It can be understood that the upper connecting seat 31, the upper connecting rod 32, the middle connecting seat 33, the lower connecting rod 34 and the lower connecting seat 35 are sequentially connected end to end through the rotating shaft 36 to form 4 rotating joints 37, when in a normal working state, each rotating joint 37 is in an unfolded state, the distance between the reflecting plate 1 and the antenna plate 2 is the largest and is about one fourth of the wavelength of the working frequency, and when the design frequency is 750MHz, the maximum distance is about 100 mm; when the foldable support mechanism 3 is folded, the rotary joints 37 are in a folded state, and the length of the foldable support mechanism 3 is the smallest, i.e. the distance between the reflection plate 1 and the antenna plate 2 is the smallest, which is about one third of the distance in an unfolded state, and the distance is about 35mm when the design frequency is 750 MHz.
Further, the upper connecting seat 31 is provided with an upper rotation guide portion 311; the lower connecting base 35 is provided with a lower rotation guide portion 351; the middle connection seat 33 is provided with two middle rotation guide portions 331. By providing the above-mentioned rotation guide portions, smooth rotation of the rotation joints 37 is facilitated and the unfolding and folding efficiency is facilitated.
More preferably, the upper and middle rotation guide portions have opposite guide directions; the guiding directions of the lower rotating guide part and the middle rotating guide part are opposite. With such design, when ready to be folded, the middle connecting seat 33 can be pushed to complete folding; when the antenna board 2 is ready to be unfolded, the antenna board can be unfolded by lifting, and the unfolding and folding efficiency is further improved.
Further, the multi-section folding mechanism further includes a limiting portion 38 for limiting the rotation angle of each of the rotational joints to 90 °. Specifically, the two ends of the upper link 32 are provided with the limiting parts 38; the two ends of the lower connecting rod 34 are provided with the limiting parts 38, and preferably, the upper connecting seat 31, the lower connecting seat 35 and the middle connecting seat 33 are provided with limiting grooves to match the limiting parts 38. It can be understood that, due to the arrangement of the limiting portion 38, each rotary joint 37 can only rotate 90 °, that is, cannot rotate continuously after rotating in place, so as to avoid over-rotation.
The utility model discloses following beneficial effect has:
the utility model provides a collapsible platy directional aerial utilizes collapsible supporting mechanism to couple together reflecting plate and antenna panel to realize unfolding or folding up of antenna panel, can be relative the reflecting plate is kept away from and is shown the state of expansion or be close to and show the state of folding up. The antenna plate is unfolded away from the reflecting plate through the foldable supporting mechanism, and the distance between the antenna plate and the reflecting plate is the largest at the moment, so that the antenna plate is in a normal working state; and folding the antenna plate close to the reflecting plate, wherein the distance between the antenna plate and the reflecting plate is minimum, the folded plate-shaped directional antenna is in a storage state of the antenna plate, and the thickness of the folded plate-shaped directional antenna can be reduced to about one third of that of the unfolded plate-shaped directional antenna. The utility model provides a collapsible plate-like directional aerial not only folds up the antenna effectively through collapsible supporting mechanism and is favorable to accomodating and transporting, does not influence gain, the work bandwidth of antenna moreover.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.
Claims (10)
1. A foldable plate-shaped directional antenna is characterized by comprising a reflecting plate and an antenna plate arranged above the reflecting plate, wherein the antenna plate is connected with the reflecting plate through a foldable supporting mechanism, so that the antenna plate is far away from or close to the reflecting plate for folding.
2. The foldable plate-shaped directional antenna according to claim 1, wherein the foldable support mechanism is a Z-type folding mechanism, an X-type folding mechanism, or a multi-section type folding mechanism.
3. The foldable plate-shaped directional antenna according to claim 2, wherein the multi-section folding mechanism comprises an upper connection seat, an upper connecting rod, a middle connection seat, a lower connecting rod and a lower connection seat; the upper connecting seat is arranged on the antenna plate; two ends of the upper connecting rod are respectively and rotatably connected to the upper connecting seat and the middle connecting seat; the lower connecting seat is arranged on the reflecting plate; and two ends of the lower connecting rod are respectively and rotatably connected with the middle connecting seat and the lower connecting seat.
4. The foldable plate-shaped directional antenna according to claim 3, wherein the upper connection base is provided with an upper rotation guide part; the lower connecting seat is provided with a lower rotation guide part; the middle connecting seat is provided with two middle rotating guide parts.
5. The foldable plate-shaped directional antenna according to claim 3, wherein the multi-section folding mechanism further comprises a limiting portion for limiting the rotation angle of the rotational connection to 90 °.
6. The foldable plate-shaped directional antenna according to claim 5, wherein the upper link is provided at both ends thereof with the stopper portions; the two ends of the lower connecting rod are provided with the limiting parts.
7. The foldable plate-shaped directional antenna according to claim 1, wherein the foldable support mechanism is made of plastic.
8. The foldable plate-shaped directional antenna according to claim 1, wherein the antenna plate is connected to the reflection plate through at least 3 foldable support mechanisms.
9. The foldable plate-shaped directional antenna according to claim 1, wherein the distance between the antenna plate and the reflector plate is one quarter of the wavelength of the operating frequency of the antenna when the foldable support mechanism is unfolded.
10. The foldable plate-shaped directional antenna according to claim 1, wherein the antenna plate contains a radio frequency cable feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121658514.8U CN215119203U (en) | 2021-07-20 | 2021-07-20 | Foldable plate-shaped directional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121658514.8U CN215119203U (en) | 2021-07-20 | 2021-07-20 | Foldable plate-shaped directional antenna |
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| Publication Number | Publication Date |
|---|---|
| CN215119203U true CN215119203U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121658514.8U Active CN215119203U (en) | 2021-07-20 | 2021-07-20 | Foldable plate-shaped directional antenna |
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| CN (1) | CN215119203U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115207617A (en) * | 2022-07-11 | 2022-10-18 | 中国电子科技集团公司第五十四研究所 | Mechanical reconfigurable panel antenna |
-
2021
- 2021-07-20 CN CN202121658514.8U patent/CN215119203U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115207617A (en) * | 2022-07-11 | 2022-10-18 | 中国电子科技集团公司第五十四研究所 | Mechanical reconfigurable panel antenna |
| CN115207617B (en) * | 2022-07-11 | 2023-12-01 | 中国电子科技集团公司第五十四研究所 | Mechanically reconfigurable panel antenna |
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