Antenna of ceiling ONU (Optical Network Unit)

Abstract

A ceiling ONU antenna disclosed by the present invention comprises a radiator and a ground wire, the radiator comprises a first radiation surface, a second radiation surface, a third radiation surface, a fourth radiation surface and a fifth radiation surface, and the ground wire comprises a first rectangular surface, a second rectangular surface and a third rectangular surface. And the first rectangular surface, the second rectangular surface and the third rectangular surface form a concave structure. Through the coplanar layout of the first radiating surface, the second radiating surface, the third radiating surface, the fourth radiating surface and the fifth radiating surface and the mutual connection mode of the radiating surfaces, the structural compactness is realized, the overall size of the antenna is reduced, the space utilization rate is also improved, and the antenna structure is compact. Therefore, the antenna is more suitable for application scenarios with strict requirements on the size, such as a ceiling-mounted ONU structure.

Description

Technical Field

[0001] The present invention relates to the technical field of antennas, and more specifically, to an antenna for a ceiling-mounted ONU. Background Art

[0002] In recent years, the Internet and wireless devices have developed rapidly. With the diversification of application scenarios, users have higher requirements for the coverage and installation methods of wireless devices.

[0003] Ceiling ONU, or ceiling optical network unit, is a user-side device in a fiber-optic access network. It is usually designed to be installed on the top or ceiling of a room for easy wiring and management. The ceiling design makes the installation of ONU more flexible and convenient, especially in environments such as homes or offices where wiring needs to be hidden or space needs to be saved. At the same time, since it is installed on the top, the ceiling ONU can effectively reduce cable exposure and improve the indoor aesthetics.

[0004] Compared with traditional ONU equipment, ceiling-mounted ONU has a wider coverage and more flexible and convenient installation layout. However, due to the limitations of the ceiling-mounted ONU structure, the performance requirements that metal antennas can achieve in a smaller size are higher. Summary of the invention

[0005] The present invention provides a ceiling-mounted ONU antenna, which enables a metal antenna to meet high performance requirements under the condition of a small volume.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0007] The present invention provides an antenna for a ceiling-mounted ONU, comprising a radiator and a ground wire, wherein:

[0008] The radiator comprises a first radiating surface, a second radiating surface, a third radiating surface, a fourth radiating surface and a fifth radiating surface, wherein the first radiating surface, the second radiating surface, the third radiating surface, the fourth radiating surface and the fifth radiating surface are coplanar, one end of the first radiating surface is connected to one end of the second radiating surface, the other end of the second radiating surface is connected to one end of the third radiating surface, the other end of the third radiating surface is respectively connected to one end of the fourth radiating surface and one end of the fifth radiating surface, the fourth radiating surface and the fifth radiating surface extend in opposite directions, and the connection point between the second radiating surface and the third radiating surface is a feeding point;

[0009] The ground line includes a first rectangular surface, a second rectangular surface and a third rectangular surface, the first rectangular surface, the second rectangular surface and the third rectangular surface form a "concave" structure, and the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are connected to the first rectangular surface.

[0010] In the above technical means, the compactness of the structure is achieved through the coplanar layout of the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface, and the way they are connected to each other. This design not only reduces the overall size of the antenna, but also improves the space utilization, making the antenna more suitable for application scenarios such as ceiling-mounted ONU structures that have strict requirements on size. At the same time, since the extension directions of the fourth radiation surface and the fifth radiation surface are opposite, a more balanced multi-directional radiation performance is brought, and better signal coverage can be provided in multiple directions of the antenna, which improves the reliability and stability of communication, and enables the metal antenna to meet high performance requirements under the condition of small size.

[0011] Furthermore, the extension direction of the first radiation surface is perpendicular to the extension direction of the second radiation surface, the extension direction of the second radiation surface is perpendicular to the extension direction of the third radiation surface, and the extension direction of the third radiation surface is the same as the extension direction of the first radiation surface, and the extension direction of the third radiation surface is perpendicular to the extension direction of the fourth radiation surface and the extension direction of the fifth radiation surface, respectively.

[0012] In the above technical means, the radiation surfaces are perpendicular to each other, realizing a compact radiator structure, so that the antenna can achieve efficient radiation performance in a limited space.

[0013] Furthermore, the first rectangular surface and the second rectangular surface are perpendicular to each other, the second rectangle and the third rectangular surface are perpendicular to each other, and the third rectangular surface is opposite to the first rectangular surface.

[0014] Furthermore, the first radiation surface has a width of 2.0 mm to 3.0 mm and a length of 4 mm to 5 mm.

[0015] Furthermore, the second radiation surface has a width of 1 mm to 2 mm and a length of 10 mm to 11 mm.

[0016] Furthermore, the third radiation surface has a width of 1 to 2 mm and a length of 8 to 10 mm.

[0017] Furthermore, the fourth radiation surface has a width of 2.0 to 3 mm and a length of 18 to 19 mm.

[0018] Furthermore, the fifth radiation surface has a width of 1 to 2 mm and a length of 8 to 9 mm.

[0019] Furthermore, the long sides of the first rectangular surface, the second rectangular surface and the third rectangular surface are equal, the long sides of the first rectangular surface, the second rectangular surface and the third rectangular surface are at least greater than the length of the second radiation surface, and the width of the first rectangular surface is at least greater than the sum of the lengths of the first radiation surface and the third radiation surface.

[0020] Furthermore, the radiation wire and the ground wire are both made of stainless steel.

[0021] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0022] The present invention provides an antenna for a ceiling-mounted ONU, comprising a radiator and a ground wire, wherein the radiator comprises a first radiating surface, a second radiating surface, a third radiating surface, a fourth radiating surface and a fifth radiating surface connected to each other; the ground wire comprises a first rectangular surface, a second rectangular surface and a third rectangular surface to form a "concave" structure. The antenna of the present invention has a small volume, a compact size and is easy to be integrated and manufactured on a PCB board or other media. At the same time, due to the compact structure and reasonable design, the manufacturing cost can be reduced and the production efficiency can be improved, which is conducive to large-scale production and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of an antenna for a ceiling-mounted ONU provided in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of S11 of an antenna of a ceiling-mounted ONU provided in an embodiment of the present invention;

[0025] Figure 3 A standing wave diagram of an antenna of a ceiling-mounted ONU provided in an embodiment of the present invention;

[0026] Figure 4 A 3D radiation diagram of an antenna of a ceiling-mounted ONU provided in an embodiment of the present invention.

[0027] In the figure, 1 is the first radiation surface, 2 is the second radiation surface, 3 is the third radiation surface, 4 is the fourth radiation surface, 5 is the fifth radiation surface, 6 is the first rectangular surface, 7 is the second rectangular surface, and 8 is the third rectangular surface. DETAILED DESCRIPTION

[0028] The drawings are for illustrative purposes only and should not be construed as limiting the present patent;

[0029] In order to better illustrate the present embodiment, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0030] It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0031] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Example 1

[0033] An antenna for a ceiling mounted ONU, such as Figure 1As shown, it includes a radiator and a ground line, where:

[0034] The radiator comprises a first radiating surface, a second radiating surface, a third radiating surface, a fourth radiating surface and a fifth radiating surface, wherein the first radiating surface, the second radiating surface, the third radiating surface, the fourth radiating surface and the fifth radiating surface are coplanar, one end of the first radiating surface is connected to one end of the second radiating surface, the other end of the second radiating surface is connected to one end of the third radiating surface, the other end of the third radiating surface is respectively connected to one end of the fourth radiating surface and one end of the fifth radiating surface, the fourth radiating surface and the fifth radiating surface extend in opposite directions, and the connection point between the second radiating surface and the third radiating surface is a feeding point;

[0035] The ground line includes a first rectangular surface, a second rectangular surface and a third rectangular surface, the first rectangular surface, the second rectangular surface and the third rectangular surface form a "concave" structure, and the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are connected to the first rectangular surface.

[0036] In this embodiment, the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are long strip radiation patches, and the top and bottom edges of the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are connected to each other to form a connection structure, which realizes structural compactness. This design not only reduces the overall size of the antenna, but also improves the space utilization rate, making the antenna more suitable for application scenarios such as ceiling-mounted ONU structures that have strict requirements on size. At the same time, since the extension directions of the fourth radiation surface and the fifth radiation surface are opposite, more balanced multi-directional radiation performance is brought, and better signal coverage can be provided in multiple directions of the antenna, which improves the reliability and stability of communication, and enables the metal antenna to achieve high performance requirements under the condition of small size.

[0037] Example 2

[0038] An antenna for a ceiling mounted ONU, such as Figure 1 As shown, it includes a radiator and a ground line, where:

[0039] The radiator comprises a first radiating surface, a second radiating surface, a third radiating surface, a fourth radiating surface and a fifth radiating surface, wherein the first radiating surface, the second radiating surface, the third radiating surface, the fourth radiating surface and the fifth radiating surface are coplanar, one end of the first radiating surface is connected to one end of the second radiating surface, the other end of the second radiating surface is connected to one end of the third radiating surface, the other end of the third radiating surface is respectively connected to one end of the fourth radiating surface and one end of the fifth radiating surface, the fourth radiating surface and the fifth radiating surface extend in opposite directions, and the connection point between the second radiating surface and the third radiating surface is a feeding point;

[0040] The ground line includes a first rectangular surface, a second rectangular surface and a third rectangular surface, the first rectangular surface, the second rectangular surface and the third rectangular surface form a "concave" structure, and the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are connected to the first rectangular surface.

[0041] In a further embodiment, the extension direction of the first radiation surface is perpendicular to the extension direction of the second radiation surface, the extension direction of the second radiation surface is perpendicular to the extension direction of the third radiation surface, and the extension direction of the third radiation surface is the same as the extension direction of the first radiation surface, and the extension direction of the third radiation surface is perpendicular to the extension direction of the fourth radiation surface and the extension direction of the fifth radiation surface, respectively.

[0042] In this embodiment, the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are long strip radiation patches, and the extension direction of the radiation surface refers to the direction with the short side of one end of the radiation surface as the starting point and the short side of the other end of the radiation surface as the end point. Therefore, the extension direction of the first radiation surface is perpendicular to the extension direction of the second radiation surface, which means that the short side of the first radiation surface at the end point of the first radiation surface is connected to the short side of the second radiation surface at the starting point of the second radiation surface and is perpendicular to each other; the extension direction of the second radiation surface is perpendicular to the extension direction of the third radiation surface, which means that the short side of the second radiation surface at the end point of the second radiation surface is connected to the short side of the third radiation surface at the starting point of the third radiation surface and is perpendicular to each other; and the extension direction of the third radiation surface is the same as the extension direction of the first radiation surface, which means that the direction from the starting point of the first radiation surface to the end point of the first radiation surface is consistent with the direction from the starting point of the third radiation surface to the end point of the third radiation surface, but not opposite; the extension direction of the third radiation surface is perpendicular to the extension direction of the fourth radiation surface and the extension direction of the fifth radiation surface respectively, which means that the short side of the third radiation surface at the end point of the third radiation surface is connected to the short side of the fourth radiation surface at the starting point of the fourth radiation surface and is perpendicular to each other, and at the same time, the short side of the third radiation surface at the end point of the third radiation surface is connected to the short side of the fifth radiation surface at the starting point of the fifth radiation surface and is perpendicular to each other, and the end point of the fourth radiation surface and the end point of the fifth radiation surface are in different directions.

[0043] In a further embodiment, the first rectangular surface and the second rectangular surface are perpendicular to each other, the second rectangular surface and the third rectangular surface are perpendicular to each other, and the third rectangular surface is opposite to the first rectangular surface.

[0044] In a specific embodiment, if a short side of the first rectangular surface is used as the X-axis, a long side is used as the Y-axis, a vertex is used as the origin O, the plane where the first rectangular surface is located is the OXY plane, the positive direction of the X-axis is the direction from the vertex as the origin O to the other vertex of the short side of the X-axis, and the positive direction of the Y-axis is the direction from the vertex as the origin O to the other vertex of the long side of the Y-axis, and an XYZ coordinate system is established, then the first rectangular surface and the second rectangular surface are perpendicular to each other, a long side of the second rectangular surface is connected to a long side of the first rectangular surface, and the plane where the second rectangular surface is located is the OYZ plane; the second rectangular surface and the third rectangular surface are perpendicular to each other, which means that the other long side of the second rectangular surface is connected to a long side of the third rectangular surface, and the plane where the third rectangular surface is located is parallel to the OXY plane; the third rectangular surface is opposite to the first rectangular surface, which means that the projection of the third rectangular surface on the OXY plane is located within the range of the first rectangular surface.

[0045] In this embodiment, the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are long strip radiation patches, and the top and bottom edges of the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are connected to each other to form a connection structure, which realizes structural compactness. This design not only reduces the overall size of the antenna, but also improves the space utilization rate, making the antenna more suitable for application scenarios such as ceiling ONU structures that have strict requirements on size. At the same time, since the extension directions of the fourth radiation surface and the fifth radiation surface are opposite, more balanced multi-directional radiation performance is brought, and better signal coverage can be provided in multiple directions of the antenna, which improves the reliability and stability of communication, and realizes that the metal antenna meets the high performance requirements under the condition of small volume. The "concave" structure of the ground wire in this embodiment composed of the first rectangular surface, the second rectangular surface and the third rectangular surface not only provides a stable grounding path, but also may reflect or guide electromagnetic waves, further enhancing the radiation effect of the antenna.

[0046] Example 3

[0047] An antenna for a ceiling mounted ONU, such as Figure 1 As shown, it includes a radiator and a ground line, where:

[0048] The radiator comprises a first radiating surface, a second radiating surface, a third radiating surface, a fourth radiating surface and a fifth radiating surface, wherein the first radiating surface, the second radiating surface, the third radiating surface, the fourth radiating surface and the fifth radiating surface are coplanar, one end of the first radiating surface is connected to one end of the second radiating surface, the other end of the second radiating surface is connected to one end of the third radiating surface, the other end of the third radiating surface is respectively connected to one end of the fourth radiating surface and one end of the fifth radiating surface, the fourth radiating surface and the fifth radiating surface extend in opposite directions, and the connection point between the second radiating surface and the third radiating surface is a feeding point;

[0049] The ground line includes a first rectangular surface, a second rectangular surface and a third rectangular surface, the first rectangular surface, the second rectangular surface and the third rectangular surface form a "concave" structure, and the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are connected to the first rectangular surface.

[0050] In a further embodiment, the extension direction of the first radiation surface is perpendicular to the extension direction of the second radiation surface, the extension direction of the second radiation surface is perpendicular to the extension direction of the third radiation surface, and the extension direction of the third radiation surface is the same as the extension direction of the first radiation surface, and the extension direction of the third radiation surface is perpendicular to the extension direction of the fourth radiation surface and the extension direction of the fifth radiation surface, respectively.

[0051] In this embodiment, the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are long strip radiation patches, and the extension direction of the radiation surface refers to the direction with the short side of one end of the radiation surface as the starting point and the short side of the other end of the radiation surface as the end point. Therefore, the extension direction of the first radiation surface is perpendicular to the extension direction of the second radiation surface, which means that the short side of the first radiation surface at the end point of the first radiation surface is connected to the short side of the second radiation surface at the starting point of the second radiation surface and is perpendicular to each other; the extension direction of the second radiation surface is perpendicular to the extension direction of the third radiation surface, which means that the short side of the second radiation surface at the end point of the second radiation surface is connected to the short side of the third radiation surface at the starting point of the third radiation surface and is perpendicular to each other; and the extension direction of the third radiation surface is the same as the extension direction of the first radiation surface, which means that the direction from the starting point of the first radiation surface to the end point of the first radiation surface is consistent with the direction from the starting point of the third radiation surface to the end point of the third radiation surface, but not opposite; the extension direction of the third radiation surface is perpendicular to the extension direction of the fourth radiation surface and the extension direction of the fifth radiation surface respectively, which means that the short side of the third radiation surface at the end point of the third radiation surface is connected to the short side of the fourth radiation surface at the starting point of the fourth radiation surface and is perpendicular to each other, and at the same time, the short side of the third radiation surface at the end point of the third radiation surface is connected to the short side of the fifth radiation surface at the starting point of the fifth radiation surface and is perpendicular to each other, and the end point of the fourth radiation surface and the end point of the fifth radiation surface are in different directions.

[0052] In a further embodiment, the first rectangular surface and the second rectangular surface are perpendicular to each other, the second rectangular surface and the third rectangular surface are perpendicular to each other, and the third rectangular surface is opposite to the first rectangular surface.

[0053] In a specific embodiment, if a short side of the first rectangular surface is used as the X-axis, a long side is used as the Y-axis, a vertex is used as the origin O, the plane where the first rectangular surface is located is the OXY plane, the positive direction of the X-axis is the direction from the vertex as the origin O to the other vertex of the short side of the X-axis, and the positive direction of the Y-axis is the direction from the vertex as the origin O to the other vertex of the long side of the Y-axis, and an XYZ coordinate system is established, then the first rectangular surface and the second rectangular surface are perpendicular to each other, a long side of the second rectangular surface is connected to a long side of the first rectangular surface, and the plane where the second rectangular surface is located is the OYZ plane; the second rectangular surface and the third rectangular surface are perpendicular to each other, which means that the other long side of the second rectangular surface is connected to a long side of the third rectangular surface, and the plane where the third rectangular surface is located is parallel to the OXY plane; the third rectangular surface is opposite to the first rectangular surface, which means that the projection of the third rectangular surface on the OXY plane is located within the range of the first rectangular surface.

[0054] In this embodiment, the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are long strip radiation patches, and the top and bottom edges of the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are connected to each other to form a connection structure, which realizes structural compactness. This design not only reduces the overall size of the antenna, but also improves the space utilization rate, making the antenna more suitable for application scenarios such as ceiling ONU structures that have strict requirements on size. At the same time, since the extension directions of the fourth radiation surface and the fifth radiation surface are opposite, more balanced multi-directional radiation performance is brought, and better signal coverage can be provided in multiple directions of the antenna, which improves the reliability and stability of communication, and realizes that the metal antenna meets the high performance requirements under the condition of small volume. The "concave" structure of the ground wire in this embodiment composed of the first rectangular surface, the second rectangular surface and the third rectangular surface not only provides a stable grounding path, but also may reflect or guide electromagnetic waves, further enhancing the radiation effect of the antenna.

[0055] In a further embodiment, the first radiation surface has a width of 2.0 mm to 3.0 mm and a length of 4 mm to 5 mm.

[0056] In a specific embodiment, the first radiation surface has a width of 2.5 mm and a length of 4 mm.

[0057] In a further embodiment, the second radiation surface has a width of 1 mm to 2 mm and a length of 10 mm to 11 mm.

[0058] In a specific embodiment, the bottom edge of the second radiation surface is 1.3 mm and the length is 11 mm.

[0059] In a further embodiment, the third radiation surface has a width of 1 to 2 mm and a length of 8 to 10 mm.

[0060] In a specific embodiment, the third radiation surface has a width of 1.7 mm and a length of 9 mm.

[0061] In a further embodiment, the fourth radiation surface has a width of 2.0-3 mm and a length of 18-19 mm.

[0062] In a specific embodiment, the fourth radiation surface has a width of 2.0 mm and a length of 19 mm.

[0063] In a further embodiment, the fifth radiation surface has a width of 1 to 2 mm and a length of 8 to 9 mm.

[0064] In a specific embodiment, the fifth radiation surface has a width of 1.5 mm and a length of 9 mm.

[0065] In a further embodiment, the long sides of the first rectangular surface, the second rectangular surface and the third rectangular surface are equal, the long sides of the first rectangular surface, the second rectangular surface and the third rectangular surface are at least greater than the length of the second radiation surface, and the width of the first rectangular surface is at least greater than the sum of the lengths of the first radiation surface and the third radiation surface.

[0066] In a further embodiment, the radiation and ground wires are both made of stainless steel.

[0067] In a specific embodiment, the antenna provided in this embodiment has an operating frequency range of 2.4 GHz to 2.5 GHz, and its S11 schematic diagram is as shown in FIG. Figure 2 As shown, the standing wave diagram is as follows Figure 3 As shown, the 3D radiation diagram is Figure 4 shown.

[0068] In a further embodiment, the operating frequency band range of the antenna can be changed by changing the length of each radiating surface in the antenna of a ceiling-mounted ONU provided in this embodiment, so that it can be suitable for other operating frequency bands. For example, the length of the radiating surface can be changed so that the operating frequency range of the antenna can be changed to 2GHz-2.1GHz.

[0069] The same or similar reference numerals correspond to the same or similar components;

[0070] The terms used in the drawings to describe positional relationships are only used for illustrative purposes and should not be construed as limiting this patent;

[0071] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An antenna for a ceiling-mounted ONU, characterized in that: Includes radiator and ground wire, where: The radiator comprises a first radiating surface, a second radiating surface, a third radiating surface, a fourth radiating surface and a fifth radiating surface, wherein the first radiating surface, the second radiating surface, the third radiating surface, the fourth radiating surface and the fifth radiating surface are coplanar, one end of the first radiating surface is connected to one end of the second radiating surface, the other end of the second radiating surface is connected to one end of the third radiating surface, the other end of the third radiating surface is respectively connected to one end of the fourth radiating surface and one end of the fifth radiating surface, the fourth radiating surface and the fifth radiating surface extend in opposite directions, and the connection point between the second radiating surface and the third radiating surface is a feeding point; The ground line includes a first rectangular surface, a second rectangular surface and a third rectangular surface, the first rectangular surface, the second rectangular surface and the third rectangular surface form a "concave" structure, and the first radiation surface, the second radiation surface, the third radiation surface, the fourth radiation surface and the fifth radiation surface are connected to the first rectangular surface.

2. The ceiling-mounted ONU antenna according to claim 1, characterized in that: The extension direction of the first radiation surface is perpendicular to the extension direction of the second radiation surface, the extension direction of the second radiation surface is perpendicular to the extension direction of the third radiation surface, and the extension direction of the third radiation surface is the same as the extension direction of the first radiation surface, and the extension direction of the third radiation surface is perpendicular to the extension direction of the fourth radiation surface and the extension direction of the fifth radiation surface, respectively.

3. The antenna of the ceiling-mounted ONU according to claim 1, characterized in that: The first rectangular surface and the second rectangular surface are perpendicular to each other, the second rectangular surface and the third rectangular surface are perpendicular to each other, and the third rectangular surface is opposite to the first rectangular surface.

4. The antenna of the ceiling-mounted ONU according to claim 1, characterized in that: The first radiation surface has a width of 2.0 mm to 3.0 mm and a length of 4 mm to 5 mm.

5. The ceiling-mounted ONU antenna according to claim 1, characterized in that: The second radiation surface has a width of 1 mm to 2 mm and a length of 10 mm to 11 mm.

6. The ceiling-mounted ONU antenna according to claim 1, characterized in that: The third radiation surface has a width of 1 to 2 mm and a length of 8 to 10 mm.

7. The ceiling-mounted ONU antenna according to claim 1, characterized in that: The fourth radiation surface has a width of 2.0 to 3 mm and a length of 18 to 19 mm.

8. The ceiling-mounted ONU antenna according to claim 1, characterized in that: The fifth radiation surface has a width of 1 to 2 mm and a length of 8 to 9 mm.

9. The ceiling-mounted ONU antenna according to claim 1, characterized in that: The long sides of the first rectangular surface, the second rectangular surface and the third rectangular surface are equal, the long sides of the first rectangular surface, the second rectangular surface and the third rectangular surface are at least greater than the length of the second radiation surface, and the width of the first rectangular surface is at least greater than the sum of the lengths of the first radiation surface and the third radiation surface.

10. The ceiling-mounted ONU antenna according to any one of claims 1 to 9, characterized in that: The radiation and ground wires are both made of stainless steel.

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