CN217641759U - Broadband single-polarization small wall-mounted antenna - Google Patents
Broadband single-polarization small wall-mounted antenna Download PDFInfo
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- CN217641759U CN217641759U CN202221341194.8U CN202221341194U CN217641759U CN 217641759 U CN217641759 U CN 217641759U CN 202221341194 U CN202221341194 U CN 202221341194U CN 217641759 U CN217641759 U CN 217641759U
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Abstract
The utility model relates to the technical field of antennas, a small-size hanging antenna of wide band single polarization is disclosed, include: the radiation device comprises a metal reflecting plate, a first radiation unit and a second radiation unit, wherein the first radiation unit and the second radiation unit are installed on the metal reflecting plate; the radiating device is characterized in that a U-shaped metal sheet is suspended at the lower side of the second radiating unit; the left side and the right side of the metal reflecting plate are respectively provided with two inverted L-shaped metal sheets, each inverted L-shaped metal sheet protrudes towards one side where the radiation unit is located, the front side and the rear side of the metal reflecting plate are respectively provided with metal side edges, and each metal side edge protrudes towards one side where the radiation unit is located; the second radiation unit is a dipole unit, and a short circuit bridge is arranged on the second radiation unit; and a low-frequency loading piece and a high-frequency director are arranged on the first radiation unit. The utility model has the characteristics of the structure is compacter, and the volume is littleer.
Description
Technical Field
The utility model relates to the technical field of antennas, especially, relate to a small-size hanging antenna of wide band single polarization.
Background
The wall-mounted antenna is one of indispensable devices applied to WLAN and LTE wireless communication systems as an indoor distributed antenna, and the quality of the performance of the wall-mounted antenna directly affects the coverage effect of the network. In order not to affect the indoor environment, the wall-mounted antenna generally requires small volume and beautiful appearance. The existing single-polarized wall-mounted antenna with smaller size and capable of covering multiple frequency bands still has larger size.
The concrete expression is as follows: the early wideband wall-mounted antenna, as described in the chinese utility model patent publication No. CN2706882Y, has a frequency band of 1710-2500 MHz and a size of 220mm × 200mm × 80mm. With the development of technology and the increasing of frequency band range, in recent years, it is required to add a low frequency oscillator to a wall-mounted antenna, for example, a chinese patent application with publication number CN105119039a discloses a wall-mounted antenna, which includes: reflecting plate, high frequency oscillator and low frequency oscillator establish the top of reflecting plate and separate with the reflecting plate, and the low frequency oscillator is located high frequency oscillator one side and keeps away from the high frequency oscillator. The increase of the low-frequency element further increases the size of the wall-mounted antenna, and the length of the whole wall-mounted antenna is increased to 280mm.
In view of this, how to further optimize the size of the broadband wall-mounted antenna has very important practical significance.
Disclosure of Invention
To the problem that exists among the prior art, an object of the utility model is to provide a structure is compacter, the volume is littleer wide band single polarization small-size hanging antenna.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
A broadband single-polarized small wall-mounted antenna, comprising: the radiation device comprises a metal reflecting plate, a first radiation unit and a second radiation unit, wherein the first radiation unit and the second radiation unit are installed on the metal reflecting plate; the U-shaped metal sheet is suspended on the lower side of the second radiation unit; the left side and the right side of the metal reflecting plate are respectively provided with two inverted L-shaped metal sheets, each inverted L-shaped metal sheet protrudes towards one side where the radiation unit is located, the front side and the rear side of the metal reflecting plate are respectively provided with metal side edges, and each metal side edge protrudes towards one side where the radiation unit is located; the second radiation unit is a dipole unit, and a short circuit bridge is arranged on the second radiation unit; and a low-frequency loading piece and a high-frequency director are arranged on the first radiation unit.
More preferably, the metal reflecting plate, the first radiation unit and the second radiation unit are all rectangular plates, and long sides of the three rectangular plates correspond to long sides, short sides of the three rectangular plates correspond to short sides, and the three rectangular plates are concentrically arranged; the U-shaped metal sheet is long-strip-shaped, the length direction of the U-shaped metal sheet is perpendicular to the long edges of the rectangular plates, and the U-shaped metal sheet and the three rectangular plates are concentrically arranged.
More preferably, the first radiation unit and the second radiation unit are respectively suspended on the upper side of the metal reflecting plate through a first supporting column and a second supporting column connected with the metal reflecting plate, and the U-shaped metal sheet is suspended on the lower side of the second radiation unit through a third supporting column connected with the second radiation unit.
More preferably, the two inverted-L-shaped metal sheets positioned on the same side are symmetrically arranged, and the opening directions of the two inverted-L-shaped metal sheets are opposite; the inverted-L-shaped metal sheets positioned on different sides are symmetrical.
More preferably, the left and right sides are short sides of the metal reflection plate, and the front and rear sides are long sides of the metal reflection plate.
More preferably, the L-shaped metal sheet, the metal side and the metal reflector are integrally punched to form an integral structure.
More preferably, two sides of the top of the inverted L-shaped metal sheet and the two sides of the top of the U-shaped metal sheet are respectively provided with an outward flanging structure.
More preferably, a through hole for allowing a feeding plate to pass through is formed in the center of the U-shaped metal plate, one end of the feeding plate is connected with the second radiating element, and the other end of the feeding plate is connected with a cable.
More preferably, the low-frequency loading sheet is two parallel long-strip-shaped metal sheets, and the high-frequency director is two metal points arranged between the two long-strip-shaped metal sheets.
The utility model has the advantages that: the whole wall-mounted antenna is more compact in structure and smaller in size. Through the actual production verification, the utility model provides a small-size hanging antenna of wide band unipolar, its size can accomplish 100X 70mm, and the working frequency reaches 880MHz-2700MHz, has the function of small volume, broadband concurrently.
Drawings
Fig. 1 is a schematic structural view of the broadband single-polarized small wall-mounted antenna provided by the present invention.
Fig. 2 is a schematic structural diagram of a reflective backplane.
Fig. 3 is a schematic structural diagram of the first radiation unit.
Fig. 4 is a schematic structural diagram of the second radiation unit.
Reference numerals indicate the same.
1: metal reflective plate, 2: first radiation unit, 3: second radiation unit, 4: u-shaped metal sheet, 5: first support column, 6: second support column, 7: third support column, 8: cable, 9: a feeding tab.
1-1: inverted-L-shaped metal sheet, 1-2: metal side edges.
2-1: low-frequency loading piece, 2-2: a high frequency director.
3-1: a short circuit bridge.
Detailed Description
In the description of the present invention, it should be noted that, for the terms of orientation, there are terms such as "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicating the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; mechanical connection is also possible; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
As shown in fig. 1, a broadband single-polarized small wall-mounted antenna includes: the metal reflecting plate 1 and install first radiating element 2, second radiating element 3 on the metal reflecting plate 1, first radiating element 2 hangs and locates the upside of second radiating element 3 the downside of second radiating element 3 hangs and is equipped with U-shaped sheetmetal 4. When the antenna works, the metal reflecting plate 1 is used for enhancing the front-to-back ratio and the gain of the antenna, so that the radiation performance of the antenna is good; the U-shaped metal sheet 4 is used for coupling with the radiation unit, so that the antenna generates resonance, and the bandwidth of the antenna is increased.
In this embodiment, it is preferable that the metal reflection plate 1, the first radiation unit 2, and the second radiation unit 3 are rectangular plates, and long sides of the three rectangular plates correspond to long sides, and short sides of the three rectangular plates correspond to short sides, and the three rectangular plates are concentrically disposed. The U-shaped metal sheet 4 is long-strip-shaped, the length direction of the U-shaped metal sheet 4 is perpendicular to the long edges of the rectangular plates, and the U-shaped metal sheet 4 and the three rectangular plates are concentrically arranged. Thus, the entire antenna has the most excellent performance. In some embodiments, the metal reflection plate 1, the first radiation unit 2, and the second radiation unit 3 may be appropriately adjusted according to actual needs, and are not limited to the embodiment.
In this embodiment, it is preferable that the first radiation unit 2 and the second radiation unit 3 are respectively suspended on the upper side of the metal reflection plate 1 by a first support column 5 and a second support column 6 connected to the metal reflection plate 1, and the U-shaped metal sheet 4 is suspended on the lower side of the second radiation unit 3 by a third support column 7 connected to the second radiation unit 3. Obviously, the suspension installation manner of the first radiation unit 2, the second radiation unit 3 and the U-shaped metal sheet 4 can be selected by those skilled in the art according to actual needs, and is not limited to the embodiment.
As shown in fig. 2, two inverted L-shaped metal sheets 1-1 are respectively disposed on the left and right sides of the metal reflection plate 1, each inverted L-shaped metal sheet 1-1 protrudes toward one side where the radiation unit is located, and the two inverted L-shaped metal sheets 1-1 located on the same side are symmetrically disposed and have opposite opening directions; the front side and the rear side of the metal reflecting plate 1 are respectively provided with metal side edges 1-2, and each metal side edge 1-2 protrudes towards one side where the radiation unit is located. When the antenna works, the two inverted L-shaped metal sheets 1-1 serve as inductance capacitors and are used for adjusting the matching of the antenna and coupling with the radiation unit to generate resonance and increase the bandwidth of the antenna; the metal side edge 1-2 is used for adjusting the wave width of the antenna, so that the directional diagram of the antenna is more stable.
In this embodiment, the left and right sides are short sides of the metal reflecting plate, and the front and rear sides are long sides of the metal reflecting plate 1; the inverted L-shaped metal sheets 1-1 on the left side and the right side are symmetrical to each other; the antenna thus arranged has the best performance. In some embodiments, the position of the inverted L-shaped metal sheet 1-1 may be appropriately adjusted or asymmetrically disposed, not limited to the present embodiment.
In this embodiment, the L-shaped metal sheet 1-1 and the metal side 1-2 are formed by integrally punching the metal reflector 1, and the metal reflector has a simple structure, is convenient to process, saves materials, and is lighter in weight.
As can be seen from fig. 2, the top parts of the inverted L-shaped metal sheet 1-1 and the U-shaped metal sheet 4 are respectively provided with an outward flanging structure; to enhance performance. Preferably, a through hole for allowing the feeding sheet 9 to pass through is formed in the center of the U-shaped metal sheet 4, one end of the feeding sheet 9 is connected with the second radiating unit 3, and the other end of the feeding sheet 9 is connected with the cable 8; for signal transmission.
As shown in fig. 3 and 4, the second radiating element 3 is a dipole element, and has a short-circuit bridge 3-1 thereon, and the short-circuit bridge 3-1 increases an antenna current path, so that the high-frequency radiation performance of the antenna is more stable. The first radiation unit 2 is provided with a low-frequency loading piece 2-1 and a high-frequency director 2-2, the low-frequency loading piece 2-1 is used for adjusting low-frequency wave width to enable antenna performance to be more stable, and the high-frequency director 2-2 is used for improving radiation performance of a high-frequency part of the antenna.
In this embodiment, the low-frequency loading piece 2-1 is two parallel strip-shaped metal pieces, and the direction of the strip-shaped metal pieces is consistent with the direction of the long side of the first radiation unit 2. The high-frequency director 2-2 is two square metal points arranged between the two long strip-shaped metal sheets. The size and the interval of the two strip-shaped metal sheets, the size and the interval of the two metal points, and the shape of the short-circuit bridge can be properly adjusted according to actual needs, and the specific adjustment principle is the common technical knowledge mastered by those skilled in the art, and will not be described in detail herein.
Through practical production verification, the size of the broadband single-polarized small wall-mounted antenna provided by the embodiment can be 100 multiplied by 70mm, the working frequency range reaches 880MHz-2700MHz, and the broadband single-polarized small wall-mounted antenna has the functions of small volume and broadband.
Tables 1 to 3 show directional diagram test data of the broadband single-polarized small wall-mounted antenna provided in this embodiment at different frequency bands, and as can be seen from tables 1 to 3, the broadband single-polarized small wall-mounted antenna provided in this embodiment can completely meet the operating requirements of 880MHz to 2700 MHz.
TABLE 1 gain test data sheet
Table 2, directional diagram horizontal plane (Theta = 90) analysis data table
Table 3, vertical direction diagram (Phi = 90) analysis data table.
| Frequency (MHz) | 880 | 960 | 1710 | 1900 | 2025 | 2300 | 2400 | 2515 | 2675 |
| Lobe width | 58.38 | 53.26 | 77.76 | 42.04 | 65.58 | 59.36 | 55.28 | 55.35 | 50.44 |
It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (9)
1. A broadband single-polarized small wall-mounted antenna, comprising: the radiation device comprises a metal reflecting plate, a first radiation unit and a second radiation unit, wherein the first radiation unit and the second radiation unit are installed on the metal reflecting plate; the radiating device is characterized in that a U-shaped metal sheet is suspended at the lower side of the second radiating unit; the left side and the right side of the metal reflecting plate are respectively provided with two inverted L-shaped metal sheets, each inverted L-shaped metal sheet protrudes towards one side where the radiation unit is located, the front side and the rear side of the metal reflecting plate are respectively provided with metal side edges, and each metal side edge protrudes towards one side where the radiation unit is located; the second radiation unit is a dipole unit, and a short circuit bridge is arranged on the second radiation unit; and a low-frequency loading piece and a high-frequency director are arranged on the first radiation unit.
2. The broadband single-polarized small wall-mounted antenna as claimed in claim 1, wherein the metal reflector, the first radiating element and the second radiating element are rectangular plates, and the long sides of the three rectangular plates correspond to the long sides, and the short sides of the three rectangular plates correspond to the short sides, and the three rectangular plates are concentrically arranged; the U-shaped metal sheet is long-strip-shaped, the length direction of the U-shaped metal sheet is perpendicular to the long edges of the rectangular plates, and the U-shaped metal sheet and the three rectangular plates are concentrically arranged.
3. The broadband single-polarized small wall-mounted antenna as claimed in claim 1, wherein the first radiating element and the second radiating element are suspended above the metal reflector by a first supporting pillar and a second supporting pillar connected to the metal reflector, respectively, and the U-shaped metal plate is suspended below the second radiating element by a third supporting pillar connected to the second radiating element.
4. The broadband single-polarized small wall-mounted antenna according to claim 1, wherein the two inverted-L-shaped metal sheets located on the same side are symmetrically arranged and have opposite opening directions; the inverted L-shaped metal sheets positioned on different sides are symmetrical.
5. The broadband single-polarized small wall-mounted antenna as claimed in claim 2, wherein the left and right sides are the short sides of the metal reflector, and the front and back sides are the long sides of the metal reflector.
6. The broadband single-polarized small wall-mounted antenna as claimed in claim 1, wherein the L-shaped metal sheet, the metal side and the metal are integrally punched to form a unitary structure.
7. The broadband single-polarized small wall-mounted antenna as claimed in claim 1, wherein the inverted-L-shaped metal sheet and the U-shaped metal sheet are respectively provided with an outward flanging structure at two sides of the top thereof.
8. The broadband single-polarized small wall-mounted antenna as claimed in claim 1, wherein a through hole is formed in the center of the U-shaped metal plate for allowing a feeding strip to pass through, one end of the feeding strip is connected to the second radiating element, and the other end of the feeding strip is connected to a cable.
9. The broadband single-polarized small wall-mounted antenna as claimed in claim 1, wherein the low-frequency loading sheet is two parallel elongated metal sheets, and the high-frequency director is two metal points disposed between the two elongated metal sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221341194.8U CN217641759U (en) | 2022-05-30 | 2022-05-30 | Broadband single-polarization small wall-mounted antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221341194.8U CN217641759U (en) | 2022-05-30 | 2022-05-30 | Broadband single-polarization small wall-mounted antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217641759U true CN217641759U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221341194.8U Active CN217641759U (en) | 2022-05-30 | 2022-05-30 | Broadband single-polarization small wall-mounted antenna |
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| CN (1) | CN217641759U (en) |
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- 2022-05-30 CN CN202221341194.8U patent/CN217641759U/en active Active
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