CN214625358U - Ceiling antenna - Google Patents

Abstract

The utility model discloses a ceiling antenna, which is used for being installed on a ceiling and comprises a transparent shell, a PCB feed seat arranged in the transparent shell, a transparent conductive film which is arranged on the PCB feed seat and is used as a radiation element, a feed line which extends out of the transparent shell from the inside of the transparent shell and a fixing piece which is arranged at the outer side of the transparent shell; the feeding part of the PCB feeding seat is electrically connected with the feeding line, and the transparent conductive film is tightly attached to the feeding part of the PCB feeding seat so as to realize capacitive coupling feeding; the fixing piece is used for being fixed with the ceiling. The utility model discloses a transparent conducting film is as radiation element and adopt transparent housing, and when it was installed on the ceiling, it was not obvious, even install intensive region, also can not cause visual pollution. In addition, the PCB feed seat is electrically connected with the feeder line, and the transparent conductive film is tightly attached to the feed part of the PCB feed seat, so that the transparent conductive film is fed by capacitive coupling, and the PCB feed seat is simple and reliable in structure and low in cost.

Description

Ceiling antenna

Technical Field

The utility model relates to a room branch antenna design technical field especially relates to a ceiling antenna.

Background

At present, the communication technology is developed more and more quickly, the indoor coverage required range is wider and wider, the transmission capacity is larger and larger, and the quantity of the indoor distributed antennas is promoted to be more and more dense. Conventional indoor antennas such as ceiling antennas mainly include the following two forms: firstly, the drop-shaped vertical polarization ceiling antenna has good radiation performance, but large volume and is not attractive when being installed on a ceiling; the horizontally polarized ceiling antenna has small volume, but needs a large number of installations in crowded occasions, and the traditional ceiling antenna generally adopts a common plastic shell which is obviously arranged on a ceiling, and the densely installed area can even cause visual pollution.

Therefore, it is desirable to provide a new ceiling antenna to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a do not show eye, simple structure's ceiling antenna.

In order to achieve the above object, the present invention provides a ceiling antenna for being installed on a ceiling, the ceiling antenna including a transparent housing, a PCB feed socket disposed in the transparent housing, a transparent conductive film disposed on the PCB feed socket as a radiation element, a feed line extending from inside of the transparent housing to outside of the transparent housing, and a fixing member disposed outside of the transparent housing; the feed part of the PCB feed seat is electrically connected with the feed line, and the transparent conductive film is tightly attached to the feed part of the PCB feed seat so as to realize capacitive coupling feed; the fixing piece is used for being fixed with a ceiling.

Compared with the prior art, the utility model discloses a ceiling antenna adopts transparent conductive film as radiating element and adopts transparent housing, and when ceiling antenna installs on the ceiling, it is not obvious, even install intensive region, ceiling antenna can not cause visual pollution yet. Moreover, because transparent conductive film can not weld also heat-resisting, the utility model discloses set up PCB feed seat, through being connected PCB feed seat and feed line electricity to make transparent conductive film and PCB feed seat's feed portion hug closely, realize that capacitive coupling feeds for transparent conductive film, simple structure, reliable, and with low costs.

Preferably, the transparent conductive film includes a first conductive film and a second conductive film arranged at an interval, the PCB feed socket includes a substrate, and a first feed portion and a second feed portion arranged on the substrate, the first conductive film is tightly attached to the first feed portion, the second conductive film is tightly attached to the second feed portion, the feed line is a coaxial cable, an inner conductor of the feed line is electrically connected to the first feed portion, and an outer conductor of the feed line is electrically connected to the second feed portion.

More preferably, the first conductive film and the second conductive film are horizontally polarized half-wave oscillators.

Preferably, the fixing member is provided with a through hole extending along an axis thereof, and the feeder line is inserted in the through hole.

Preferably, the fixing member is a screw.

Specifically, the transparent shell comprises a transparent bottom plate and a transparent cover plate covering the transparent bottom plate, the PCB feed seat is fixed on the transparent bottom plate, and the fixing piece is arranged on the outer side of the transparent bottom plate.

Preferably, the transparent shell is flat.

Specifically, the transparent shell is made of transparent PP or transparent glass.

Drawings

Fig. 1 is a schematic structural view of a ceiling antenna according to an embodiment of the present invention.

Fig. 2 is a schematic view of the ceiling antenna shown in fig. 1 with the transparent cover removed.

Fig. 3 is a schematic diagram of a transparent conductive film and a PCB feed pad.

Fig. 4 is a schematic view of an assembly structure of a PCB feeding seat and a feeding line.

Fig. 5 is a voltage standing wave ratio test chart of the ceiling antenna shown in fig. 1.

Fig. 6 is a vertical plane of the radiation pattern of the ceiling antenna shown in fig. 1.

Fig. 7 is a horizontal plane of the radiation pattern of the ceiling antenna of fig. 1.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

In the description of the present invention, it should be understood that the terms "inside", "outside", "upper", "bottom", and the like indicate the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for the convenience of description and simplification of the description, and thus, the limitation of the protection of the present invention is not understood.

Referring to fig. 1 to 4, the present invention provides a ceiling antenna 100 for being installed on a ceiling (not shown), which includes a transparent casing 1, a PCB feeding base 2, a transparent conductive film 3, a feeding line 4 and a fixing member 5, wherein the PCB feeding base 2 and the transparent conductive film 3 are disposed in the transparent casing 1, and the feeding line 4 extends from the inside of the transparent casing 1 to the outside of the transparent casing 1. The fixing member 5 is disposed outside the transparent casing 1, and the fixing member 5 is used to fix to a ceiling to mount the ceiling antenna 100 on the ceiling. The feeding parts 22 and 23 of the PCB feeding base 2 are electrically connected with the feeding line 4, the transparent conductive film 3 is used as a radiating element and is arranged on the PCB feeding base 2, and the transparent conductive film 3 is tightly attached to the feeding parts 22 and 23 of the PCB feeding base 2 so as to realize capacitive coupling feeding.

Incidentally, the transparent conductive film 3 is formed by etching silver ions having a conductive property in a grid shape on a thin transparent film by using a photolithography machine, and an antenna pattern is formed thereon to realize a specific radiation effect.

Referring to fig. 3 and 4, in the embodiment, the transparent conductive film 3 includes a first conductive film 31 and a second conductive film 32 arranged at an interval, the PCB feeding base 2 includes a substrate 21, and a first feeding portion 22 and a second feeding portion 23 arranged on the substrate 21, the first feeding portion 22 and the second feeding portion 23 are arranged at an interval and are both in a sheet shape, the first conductive film 31 is closely attached to the first feeding portion 22, and the second conductive film 32 is closely attached to the second feeding portion 23. The power feeding line 4 is a coaxial cable, an inner conductor of the power feeding line 4 is electrically connected to the first power feeding unit 22 by soldering, and an outer conductor of the power feeding line 4 is electrically connected to the second power feeding unit 23 by soldering. The ceiling antenna 100 is simple in structure and easy to implement.

Preferably, the first conductive film 31 and the second conductive film 32 are horizontally polarized half-wave resonators. By setting the first conductive film 31 and the second conductive film 32 to be horizontally polarized, the volume of the whole ceiling antenna 100 can be made smaller, which is beneficial to miniaturization design, and especially when being applied to a place requiring intensive installation, the problem of visual pollution caused by intensive installation can be avoided.

Specifically, as shown in fig. 1, the fixing member 5 is a screw, and the ceiling antenna 100 is stably mounted on the ceiling by screwing the fixing member 5 to the ceiling. Furthermore, the fixing member 5 is provided with a through hole (not shown) extending along the axis thereof, and the feeder line 4 penetrates through the transparent housing 1, then penetrates through the through hole, and then penetrates through the through hole to be connected with an external feeding device. The feeder line 4 is drawn out of the ceiling antenna 100 by providing a through hole in the fixing member 5, and the feeder line 4 is housed.

Specifically, as shown in fig. 1, the transparent case 1 is flat, thin and inconspicuous. Optionally, the transparent shell 1 is made of transparent PP or transparent glass, and when the transparent glass is adopted, acrylic is selected. The transparent casing 1 includes a transparent bottom plate 11 and a transparent cover plate 12 (as shown in fig. 1) covering the transparent bottom plate 11, the PCB feed socket 2 is fixed on the transparent bottom plate 11, and the fixing member 5 is fixed on the outer side of the transparent bottom plate 11 (as shown in fig. 2). In this embodiment, the PCB feeding base 2 is tightly fixed on the transparent bottom plate 11 by thermocompression bonding, and the transparent conductive film 3 is tightly attached to the feeding portions 22 and 23 of the PCB feeding base 2, so that the thickness of the ceiling antenna 100 is thinner. Similarly, the transparent cover plate 12 and the transparent base plate 11 are bonded together in a seamless manner by thermocompression bonding, and the ceiling antenna 100 is thinner and has a smoother and more beautiful appearance.

FIG. 5 shows a voltage standing wave ratio test chart of the ceiling antenna 100, as shown in FIG. 5, the voltage standing wave ratio is below 1.4084 in the operating band 698 and 960 MHz; in the working frequency band 1427 + 2700MHz, the voltage standing wave ratio is below 1.6290; in the working frequency band of 3400-4000MHz, the voltage standing wave ratio is below 1.4630; at some frequency points, the voltage standing wave ratio is even close to 1. Fig. 6 and 7 show the vertical plane and the horizontal plane of the radiation pattern of the ceiling antenna 100, respectively, and as shown in fig. 6 and 7, the ceiling antenna 100 has good radiation characteristics in the operating frequency band. Namely, the utility model discloses a ceiling antenna 100 can compatible 4G, 5G system, realizes broadband work 698 and supplyes 960MHz, 1427 and supplyes 2700MHz, 3400 and supplyes 4000MHz, and has good radiation characteristic.

Compared with the prior art, the utility model discloses a ceiling antenna 100 adopts transparent conductive film 3 as radiating element and adopts transparent housing 1, and when ceiling antenna 100 installed on the ceiling, it is not obvious, even install intensive region, ceiling antenna 100 can not cause visual pollution yet. Moreover, because transparent conductive film 3 is not weldable nor heat-resisting, the utility model discloses set up PCB feed seat 2, through being connected PCB feed seat 2 and feed line 4 electricity to make transparent conductive film 3 hug closely with PCB feed seat 2's feed portion 22, 23, realize that capacitive coupling feeds for transparent conductive film 3, simple structure, reliable, and with low costs. In addition, the polarization direction of the transparent conductive film 3 is horizontal polarization, and the volume of the whole ceiling antenna 100 can be made small, which is favorable for miniaturization design.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the present invention is not limited by the appended claims.

Claims (8)

1. A ceiling antenna is used for being installed on a ceiling and is characterized by comprising a transparent shell, a PCB (printed circuit board) feed seat arranged in the transparent shell, a transparent conductive film serving as a radiation element and arranged on the PCB feed seat, a feed line extending out of the transparent shell from the inside of the transparent shell and a fixing piece arranged on the outer side of the transparent shell; the feed part of the PCB feed seat is electrically connected with the feed line, and the transparent conductive film is tightly attached to the feed part of the PCB feed seat so as to realize capacitive coupling feed; the fixing piece is used for being fixed with a ceiling.

2. The ceiling antenna according to claim 1, wherein the transparent conductive film comprises a first conductive film and a second conductive film which are arranged at intervals, the PCB feeding base comprises a substrate, and a first feeding portion and a second feeding portion which are arranged on the substrate, the first conductive film is closely attached to the first feeding portion, the second conductive film is closely attached to the second feeding portion, the feeding line is a coaxial cable, an inner conductor of the feeding line is electrically connected to the first feeding portion, and an outer conductor of the feeding line is electrically connected to the second feeding portion.

3. The ceiling antenna as claimed in claim 2, wherein the first conductive film and the second conductive film are horizontally polarized half-wave oscillators.

4. The ceiling antenna according to claim 2, wherein the fixing member is provided with a through hole extending along an axis thereof, and the feeder line is inserted through the through hole.

5. The ceiling antenna of claim 4, wherein the fixture is a screw.

6. The ceiling antenna according to claim 1, wherein the transparent housing comprises a transparent bottom plate and a transparent cover plate covering the transparent bottom plate, the PCB feed socket is fixed on the transparent bottom plate, and the fixing member is disposed outside the transparent bottom plate.

7. The ceiling antenna of claim 1, wherein the transparent housing is flat.

8. The ceiling antenna according to claim 1, wherein the transparent casing is made of transparent PP or transparent glass.

Images