CN114824794A - Signal transmitting device and antenna system - Google Patents
Signal transmitting device and antenna system Download PDFInfo
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- CN114824794A CN114824794A CN202210571128.8A CN202210571128A CN114824794A CN 114824794 A CN114824794 A CN 114824794A CN 202210571128 A CN202210571128 A CN 202210571128A CN 114824794 A CN114824794 A CN 114824794A
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- 230000008054 signal transmission Effects 0.000 claims description 38
- 239000010410 layer Substances 0.000 claims description 8
- 239000002356 single layer Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 description 37
- 238000010586 diagram Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000002310 reflectometry Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
Abstract
The present disclosure relates to a signal transmitting apparatus, the signal transmitting apparatus including: the mask body comprises a mask body bottom and a mask body top arranged opposite to the mask body bottom; a radiating unit disposed between the cover bottom and the cover top and configured to radiate a wireless signal; and a media panel disposed between the radiant element and the enclosure bottom or between the radiant element and the enclosure top. In addition, the present disclosure also relates to an antenna system, which includes a first signal transmitting device, wherein the first signal transmitting device is the signal transmitting device; and the second signal transmitting device is arranged on one side of the bottom of the cover body, which is far away from the medium panel, wherein the working frequency of the first signal transmitting device is different from that of the second signal transmitting device.
Description
Technical Field
The present disclosure relates to the field of communications, and more particularly, to a signal transmitting apparatus and an antenna system having the same.
Background
In recent years, with the development of information communication technologies such as mobile internet and internet of things, data traffic is continuously and explosively increasing. The number of 5G base stations is rapidly increasing, and the problem of shortage of site resources is increasingly appearing.
In order to rapidly deploy 5G communication equipment, a 5G site is mainly implemented by adding a 5G antenna and equipment to 4G site resources, so a multi-frequency base station antenna becomes the mainstream. The 4G and 5G integrated active and passive integrated base station antenna has more advantages in space size, wind load and management, is widely accepted and applied in the 5G base station deployment process, and is an important direction for the future base station antenna evolution.
The existing active and passive base station antenna deployment schemes mainly include the following two types: the first is to place the active antenna module and the passive antenna module on top of each other, for example, the active antenna module is on the top and the passive antenna module is on the bottom. However, such a deployment has the disadvantage that the antenna is too long in size, resulting in excessive wind loads. A second solution is to mount a part of the passive antenna module on the reflector plate of the active antenna module. The disadvantage of this solution is that the active antenna and the passive antenna can only work together, and cannot be separated, and the passive antenna module in such an antenna can also generate a large interference effect on the signal transmission of the active antenna module.
Disclosure of Invention
The technical problem in the prior art is solved, that is, how to reduce the interference of the passive antenna module on the signal transmission of the active antenna module while increasing the deployment flexibility of the active antenna module and the passive antenna module.
In order to solve the above technical problem, a first aspect of the present disclosure provides a signal transmitting apparatus, including:
the mask body comprises a mask body bottom and a mask body top arranged opposite to the mask body bottom;
a radiating unit disposed between the cover bottom and the cover top and configured to radiate a wireless signal; and
a media panel disposed between the radiant element and the enclosure bottom or between the radiant element and the enclosure top.
In the signal transmitting device according to the present disclosure, the dielectric panel is disposed between the radiation unit and the bottom of the housing or between the radiation unit and the top of the housing, so that interference with a signal transmitted by another signal transmitting device can be reduced, and radiation performance of a signal transmitting system including the signal transmitting device and the another signal transmitting device can be improved.
Preferably, in one embodiment according to the present disclosure, the distance between the media panel and the top of the housing is related to the wavelength of a signal emitted by another signal emitting device used in cooperation with the signal emitting device. More preferably, in one embodiment according to the present disclosure, the distance is equal to an integer multiple of half the wavelength plus a quarter wavelength. In this way, the electromagnetic waves reflected by the top of the cover body of the signal emitted by the other signal emitting device can be counteracted, and therefore the interference of the signal emitting device according to the present disclosure on the signal emitted by the other signal emitting device is reduced. In other words, in this way, the influence of the signal transmitting apparatus according to the present disclosure on the signal transmitted by another signal transmitting apparatus used in cooperation with the present disclosure can be minimized.
Preferably, in one embodiment according to the present disclosure, the material of the media panel and the material of the cover are the same. Preferably, in one embodiment according to the present disclosure, the signal transmitting device is configured as a passive antenna. In this way, the active antenna can be conveniently integrated with other antennas, and the radiation performance of the whole system is improved while flexible arrangement is realized.
Furthermore, a second aspect of the present disclosure provides an antenna system comprising:
a first signal transmitting apparatus, wherein the first signal transmitting apparatus is the signal transmitting apparatus according to the first aspect of the present disclosure; and
the second signal transmitting device is arranged on one side, far away from the medium panel, of the bottom of the cover body, and the working frequency of the first signal transmitting device is different from that of the second signal transmitting device.
Here, since the first signal transmitting apparatus is provided with the dielectric panel and the dielectric panel is disposed between the radiation unit and the bottom of the housing or between the radiation unit and the top of the housing, it is possible to reduce interference with a signal transmitted by another signal transmitting apparatus and improve radiation performance of a signal transmitting system including the signal transmitting apparatus and the another signal transmitting apparatus.
Preferably, in one embodiment according to the present disclosure, the antenna system further includes a frequency selective panel configured as a frequency selective surface and disposed within the first signal transmission device or within the second signal transmission device.
Preferably, in one embodiment according to the present disclosure, the first signal transmission device further includes a feeding board, and wherein the feeding board is configured between the radiation unit and the frequency selective panel and feeds the radiation unit when the frequency selective panel is disposed within the first signal transmission device.
Preferably, in one embodiment according to the present disclosure, the frequency selective panel includes a conductive pattern having a single-layer or multi-layer structure. Still preferably, in one embodiment according to the present disclosure, the conductive pattern is configured as a slit structure. Further preferably, in an embodiment according to the present disclosure, the slit structure includes a square ring slit structure. Still further preferably, in an embodiment according to the present disclosure, the square ring slit structure is configured as an interdigital slit structure.
Preferably, in one embodiment according to the present disclosure, the frequency selective panel has a ground connection.
Preferably, in one embodiment according to the present disclosure, the first signal transmission device and the second signal transmission device are respectively configured as independent structures. Still preferably, in an embodiment according to the present disclosure, an operating frequency of the second signal transmission device is higher than an operating frequency of the first signal transmission device.
In summary, in the signal transmitting apparatus according to the present disclosure, the dielectric panel is disposed between the radiation unit and the bottom of the cover or between the radiation unit and the top of the cover, so that interference with a signal transmitted by another signal transmitting apparatus can be reduced, and radiation performance of a signal transmitting system including the signal transmitting apparatus and another signal transmitting apparatus can be improved.
Drawings
The features, advantages and other aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings, wherein several embodiments of the present disclosure are shown by way of illustration and not limitation, and wherein:
FIG. 1A shows a schematic structural diagram of a signal transmitting apparatus according to the present disclosure;
fig. 1B shows a schematic perspective view of a signal transmitting device according to the present disclosure;
fig. 2A shows an assembled schematic of an antenna system according to one embodiment of the present disclosure;
fig. 2B illustrates a cross-sectional view of the antenna system of the embodiment of fig. 2A in accordance with the present disclosure;
FIG. 3A shows a schematic structural diagram of a frequency selective surface 300A for an antenna in accordance with one embodiment of the present disclosure;
FIG. 3B shows a schematic structural diagram of a frequency selective surface 300B for an antenna in accordance with another embodiment of the present disclosure;
fig. 3C shows a schematic structural diagram of a frequency selective surface 300C for an antenna according to yet another embodiment of the present disclosure; and
fig. 3D shows a perspective view of a frequency selective surface 300C for an antenna in accordance with the embodiment of fig. 3C of the present disclosure.
Detailed Description
Various exemplary embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. Although the exemplary methods, apparatus, and devices described below include software and/or firmware executed on hardware among other components, it should be noted that these examples are merely illustrative and should not be considered as limiting. For example, it is contemplated that any or all of the hardware, software, and firmware components could be embodied exclusively in hardware, exclusively in software, or in any combination of hardware and software. Thus, while the following describes example methods and apparatus, persons of ordinary skill in the art will readily appreciate that the examples provided are not intended to limit the manner in which the methods and apparatus may be implemented.
Furthermore, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods and systems according to various embodiments of the present disclosure. It should be noted that the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
As mentioned above, the problem in the prior art is that the passive antenna module in the antenna in the prior art also generates a large interference effect on the signal transmission of the active antenna module. In order to solve the technical problem existing in the prior art, namely how to reduce the interference of a passive antenna module on the signal transmission of an active antenna module while increasing the deployment flexibility of the active antenna module and the passive antenna module, the present disclosure adds a dielectric panel in a signal transmitting device arranged in an upper layer, so that, for example, the electromagnetic wave reflected by the top of a housing of a signal transmitting device arranged in a lower layer can be cancelled, thereby reducing the interference of the signal transmitting device according to the present disclosure on the signal transmitted by another signal transmitting device.
Specifically, fig. 1A shows a schematic structural diagram of a signal transmitting device 100 according to the present disclosure, and correspondingly, fig. 1B shows a schematic perspective structural diagram of a signal transmitting device according to the present disclosure. As can be seen from fig. 1A and 1B, the signal transmitting device 100 proposed by the first aspect of the present disclosure includes a cover 110, where the cover 110 includes a cover bottom 111 and a cover top 112 disposed opposite to the cover bottom 111. In addition, the signal transmitting apparatus 100 proposed by the present disclosure further includes a radiation unit 130, the radiation unit 130 is disposed between the cover bottom 111 and the cover top 112 and the radiation unit 130 is configured to radiate a wireless signal. Furthermore, the signal transmitting apparatus 100 proposed by the present disclosure further includes a dielectric panel 140, and the dielectric panel 140 is disposed between the radiation unit 130 and the cover bottom 111 or between the radiation unit 130 and the cover top 112. In the embodiment shown in fig. 1A, the dielectric panel 140 is disposed between the radiating element 130 and the enclosure bottom 111. It will be appreciated by those skilled in the art that the media panel 140 may also be disposed between the radiating element 130 and the enclosure top 112. Here, since the signal transmitting apparatus 100 is provided with the dielectric panel 140, and the dielectric panel 140 is disposed between the radiation unit 130 and the cover bottom 111 or between the radiation unit 130 and the cover top 112, it is possible to reduce interference with a signal transmitted by another signal transmitting apparatus (which will be described with reference to fig. 2A and 2B), and improve radiation performance of a signal transmitting system including the signal transmitting apparatus 100 and the another signal transmitting apparatus.
Preferably, in one embodiment according to the present disclosure, the distance between the media panel 140 and the cover top 112 is associated with a wavelength of a signal emitted by another signal emitting device (e.g., signal emitting device 200 in fig. 2A) used in conjunction with the signal emitting device 100. More preferably, in an embodiment according to the present disclosure, the distance is equal to an integer multiple of half the wavelength of a signal transmitted by another signal transmission device used with the signal transmission device 100 plus a quarter wavelength. In this way, the electromagnetic waves reflected by the top of the cover from the signal emitted by another signal emitting device 200 can be cancelled, thereby reducing the interference of the signal emitting device 100 according to the present disclosure with the signal emitted by another signal emitting device 200. Preferably, in one embodiment according to the present disclosure, the material of the media panel 140 and the material of the cover 110 are the same. More preferably, the thickness of the media panel 140 is also the same as the thickness of the cover 110.
Furthermore, as can also be seen from fig. 1A, preferably or alternatively, the signal transmitting apparatus 100 proposed by the present disclosure further includes a frequency selection panel 120, and in the embodiment illustrated in fig. 1A, the frequency selection panel 120 is disposed in the signal transmitting apparatus 100. It will be appreciated by those skilled in the art that the frequency selective panel 120 can also be provided in another signal transmission apparatus for use with the signal transmission apparatus 100 proposed in accordance with the present disclosure.
Furthermore, the signal emitting device 100 according to the present disclosure can further include, for example, a supporting bracket 150, and the supporting bracket 150 can function to support and fix the media panel 140, for example. Furthermore, the signal transmitting apparatus 100 according to the present disclosure can further include a mounting bracket 170, for example, and the frequency selection panel 120 can be mounted on the mounting bracket 170. Besides, as can be seen in fig. 1A, the signal transmission device 100 proposed according to the present disclosure can further include a feeding board 160, for example, and wherein, when the frequency selective panel 120 is disposed within the signal transmission device 100 as shown in fig. 1A, the feeding board 160 is configured between the radiation unit 130 and the frequency selective panel 120 and feeds the radiation unit 130.
Finally, as shown in fig. 1A, the cover 110 can be further provided with a fixing clip, such as a hook 113, on a side away from the cover top 112, so that another signal emitting device used with the signal emitting device 100 can be simply fixed to the signal emitting device 100 according to the present disclosure and can be integrated to work. As further shown in fig. 1B, in the direction shown in fig. 1B, the signal transmitter 100 according to the present disclosure has a slot formed by two hooks 113 at an upper portion thereof, and another signal transmitter used in cooperation with the signal transmitter 100 can be engaged with the signal transmitter 100 according to the present disclosure by the action of the slot, thereby achieving simple fixing and integrated assembly. Fig. 2A illustrates an assembly schematic of an antenna system according to one embodiment of the present disclosure. As can be seen from fig. 2A, another signal transmitting device 200 can be connected to the signal transmitting device 100 through the card slot. To further illustrate the operating principle of the antenna system according to the present disclosure, fig. 2B shows a cross-sectional view of the antenna system according to the embodiment of fig. 2A of the present disclosure.
As can be seen from fig. 2B, the signal emitting device 100 includes a housing 110, and the housing 110 includes a housing bottom 111 and a housing top 112 disposed opposite to the housing bottom 111. In addition, the signal transmitting apparatus 100 proposed by the present disclosure further includes a radiation unit 130, and the radiation unit 130 is disposed between the cover bottom 111 and the cover top 112 and configured to radiate a wireless signal. Furthermore, the signal transmitting apparatus 100 proposed by the present disclosure further includes a dielectric panel 140, and the dielectric panel 140 is disposed between the radiation unit 130 and the cover bottom 111 or between the radiation unit 130 and the cover top 112. In the embodiment shown in fig. 2B, the dielectric panel 140 is disposed between the radiating element 130 and the enclosure bottom 111. It will be appreciated by those skilled in the art that the media panel 140 may also be disposed between the radiating element 130 and the enclosure top 112. Here, since the signal transmitting apparatus 100 is provided with the dielectric panel 140, and the dielectric panel 140 is disposed between the radiation unit 130 and the cover bottom 111 or between the radiation unit 130 and the cover top 112, it is possible to reduce interference with a signal transmitted by another signal transmitting apparatus 200 and improve radiation performance of a signal transmitting system including the signal transmitting apparatus 100 and another signal transmitting apparatus 200.
In operation, the distance between the dielectric panel 140 and the top 112 of the radome body 110 is about (2N +1) λ/4, where λ is the operating wavelength of the second signal transmitting device 200. When the first signal transmitting device 100 and the second signal transmitting device 200 are connected together to operate, since the cover top 112 of the radome of the first signal transmitting device 200 is far from the second signal transmitting device 200, the electromagnetic wave radiated from the second signal transmitting device 200 is greatly affected. When the electromagnetic wave radiated by the second signal transmission device 200 travels forward to the cover top 112 of the radome, a portion of the electromagnetic wave is reflected to travel backward without passing through the cover top 112 of the radome. The reflected electromagnetic wave travels backward to the dielectric panel 140, and a part of the electromagnetic wave is reflected by the dielectric panel 140 to travel forward. When the distance between the dielectric panel 140 and the cover top 112 of the radome is (2N +1)/4 times of the operating wavelength of the second signal transmitting device 200, the phase difference between the electromagnetic wave reflected by the dielectric panel 140 as the electromagnetic wave radiated by the second signal transmitting device 200 traveling forward and the electromagnetic wave reflected by the cover top 112 of the radome as the electromagnetic wave radiated by the second signal transmitting device 200 traveling backward at the cover top of the radome is 180 °, so that the electromagnetic waves cancel each other out, and the radiation performance of the second signal transmitting device 200 is improved.
In summary, the antenna system shown in fig. 2B includes a first signal transmitting apparatus 100, wherein the first signal transmitting apparatus is the signal transmitting apparatus 100 according to the disclosure. In addition, the antenna system shown in fig. 2B further includes a second signal transmitting device 200, where the second signal transmitting device 200 is disposed on a side of the cover bottom 111 away from the dielectric panel 140, and an operating frequency of the first signal transmitting device 100 is different from an operating frequency of the second signal transmitting device 200.
During the assembly process, the other signal transmitting device 200 can be inserted and fixed through the slot formed by the hook 113 of the signal transmitting device 100, thereby forming an integrated stacked structure without increasing the length of the antenna system and the wind resistance of the antenna system formed according to the present disclosure. On the other hand, the first signal transmission device 100 and the second signal transmission device 200 are respectively constructed as independent structures. It can be seen that according to the inventive concept according to the present disclosure, the two signal transmission devices, i.e., the first signal transmission device 100 and the second signal transmission device 200, can each operate independently, i.e., do not necessarily need to be integrated together to operate, but rather the first signal transmission device 100 can operate alone and the second signal transmission device 200 can also operate alone. Of course, it should be understood by those skilled in the art that when the first signal transmission apparatus 100 and the second signal transmission apparatus 200 are integrated to work together, the interference of the first signal transmission apparatus 100 to the signal transmitted by the second signal transmission apparatus 200 can be significantly reduced. In other words, the first signal transmitting device 100 and the second signal transmitting device 200 can be connected together through a mounting bracket or can be separated and operated separately.
More preferably, the operating frequency of the second signal transmitting apparatus 200 is higher than the operating frequency of the first signal transmitting apparatus 100. Illustratively, in the embodiment according to the present disclosure, the first signal transmitting apparatus 100 and the second signal transmitting apparatus 200 are antennas operating in different operating frequency bands. For example, the first signal transmitting apparatus 100 may be a 2G, 3G or 4G antenna, and the second signal transmitting apparatus 200 may be a 5G antenna. Here, the first signal transmitting apparatus 100 according to the disclosure may be a 698 band and 960MHz band or a 1427 band and 2690MHz band, and the operating band of the second signal transmitting apparatus 200 according to the disclosure may be a 2496 band and 2690MHz band or a 3300 band and 4000MHz band.
With continued reference to fig. 2B, the second signal transmitting device 200 of the antenna system can, for example, further include a radio frequency remote unit, a reflector plate, and a radome. The reflecting plate is fixed above the radio frequency remote unit through a fixing piece, the radiation unit of the second signal transmitting device 200 can be arranged above the reflecting plate, and the antenna housing of the second signal transmitting device 200 is fixed above the radio frequency remote unit through screws and covers the radiation unit and the reflecting plate of the second signal transmitting device 200 below the antenna housing. The second signal transmitting device 200 can thus be used as an active antenna module, for example a 5G antenna module. With continued reference to fig. 2B, the antenna system can also include another radome's cover bottom 111, a frequency selection panel 120, a dielectric panel 140, and another radome's cover top 112. The frequency selection panel 120 is fixed above the bottom 111 of the other radome by a mounting bracket 170, the first signal transmitting device 100 further includes a radiating unit 130 and a feeding board 160, and an upper end of the feeding board 160 is electrically connected to the radiating unit 130 so as to feed the radiating unit 130. The dielectric panel 140 is fixed to the mounting bracket 170 by the panel support bracket 150, and the radiation unit 130 may be located above the dielectric panel 140 or below the dielectric panel 140. The distance between the dielectric panel 140 and the radome cover top 112 is, for example, about 0.25 λ in the example shown in fig. 2B, where λ is the operating wavelength of the second signal transmitting device 200. The frequency selective panel 120 is a frequency selective surface panel which constitutes an open circuit to the second signal transmission device 200 and a ground structure to the first signal transmission device 100, so that the above first signal transmission device 100 can be used as one passive antenna module.
Continuing to refer to fig. 2B, for example, if an existing base station is provided with a passive antenna module, when an active antenna module needs to be added, the active antenna module and the passive antenna module are fixed together through a mounting bracket, and the active antenna module and the passive antenna module can work together. By adopting the mode, the communication frequency range of the base station can be widened and the communication effect of the base station can be improved without large-scale modification and extension of the existing base station. Meanwhile, the active antenna module and the passive antenna module can respectively and independently work, so that the modularization degree of the antenna is improved, the flexibility of the base station antenna is improved, and the construction cost of the base station antenna is saved.
A specific structure of the frequency selective surface according to the present disclosure will be described below with reference to fig. 3A to 3D, in which fig. 3A shows a schematic structural view of a frequency selective surface 300A for an antenna according to one embodiment of the present disclosure, fig. 3B shows a schematic structural view of a frequency selective surface 300B for an antenna according to another embodiment of the present disclosure, fig. 3C shows a schematic structural view of a frequency selective surface 300C for an antenna according to still another embodiment of the present disclosure, and fig. 3D shows a schematic perspective structural view of the frequency selective surface 300C for an antenna according to the embodiment of fig. 3C of the present disclosure.
Specifically, the Frequency Selective panel may be a Frequency Selective Surface (FSS) panel, for example. The FSS panel is a planar structure formed by a single layer or multiple layers of periodically arranged conductive patterns, has frequency selective characteristics for electromagnetic waves with different operating frequencies, polarization states and incident angles, and can be divided into a high-pass frequency selective surface, a low-pass frequency selective surface, a band-stop frequency selective surface and the like. The present disclosure employs a single layer bandpass frequency selective surface comprising a dielectric substrate 301 and a conductive pattern 302 on the dielectric substrate. Here, the conductive pattern is mainly configured with a patch metal portion and a gap portion, and preferably, the patch metal portion may include a plurality of metal pieces and the gap portion can be provided between the plurality of metal pieces. Further, a gap portion can also be formed between the metal sheet and the bezel. The conductive pattern of a general bandpass conductive pattern is a slit structure, as shown in fig. 3A. The gap can be a straight gap, a cross gap, a circular ring gap, a square ring gap or other gap structures. To increase the passband bandwidth, the single ring slot may be changed to N2 ring slots, as shown in fig. 3B, and the single square ring slot may be changed to 4 square ring slots. In order to reduce the volume of the frequency selective surface, the square ring slot structure can be further changed into an interdigital slot structure, as shown in fig. 3C. For the bandpass frequency selective surface using the interdigital slot structure, a 20mil FR4 dielectric substrate is covered with copper foil, and a 3D view thereof is shown in fig. 3D. The frequency selective surface structure adopted by the invention has the advantages of small volume, wide working bandwidth, high angle stability, insensitivity to polarization of incident signals and the like.
The frequency selective panel 120 is a single-layer or multi-layer high-pass or band-pass frequency selective surface that includes one or more dielectric substrates and a single-layer or multi-layer conductive pattern on the dielectric substrates. The frequency selective panel 120 is a pass band in the operating frequency band of the second signal transmitting device 200, does not affect the radiation signal of the second signal transmitting device 200, and can be equivalent to a layer of air. The frequency selective panel 120 is a stop band in the operating frequency band of the first signal transmitting apparatus 100, and has a reflectivity of approximately 100% for the signal radiated by the first signal transmitting apparatus 100, which can be equivalent to a continuous metal surface. Therefore, the influence of the first signal transmitting apparatus 100 on the second signal transmitting apparatus 200 can be effectively reduced, and the first signal transmitting apparatus 100 does not need to rely on the common use with the second signal transmitting apparatus 200, so that the first signal transmitting apparatus 100 and the second signal transmitting apparatus 200 can be integrated to work together or can be separated to work separately. The antenna is miniaturized and the flexibility of the antenna is improved.
As can be seen from the experimentally simulated frequency response curve of the structure of the frequency selective surface according to the present disclosure, the transmittance is as high as-0.09 dB to-0.12 dB in the operating frequency band (for example, 3400MHz to 3800MHz) of the second signal transmission device in a preferable case; and when the reflectivity is more than 20dB, the relative working bandwidth is 11.1%; when the reflectivity is larger than 15dB, the relative working bandwidth is as high as 23.9%. In the working frequency band (e.g. 698-960MHz) of the first signal transmitting device, the reflectivity is as high as-0.34 dB to-0.67 dB. Furthermore, it can be seen from experimental simulations that the transverse electric mode (i.e., TE mode, which has no electric field component in the propagation direction of the wave but has a magnetic field component) of the structure of the frequency selective surface according to the present disclosure has different frequency response curves at different incidence angles, and when the TE mode is irradiated at 0 °, 30 ° and 60 °, the center frequency point thereof is slightly shifted to a high frequency. When the irradiation angle is 60 degrees, the transmissivity of the TE mode in the working frequency band of the second signal transmitting device is-0.05 dB-0.18 dB, and the design and use requirements are still met. Further, as can be seen from the frequency response curves of the TM mode of the frequency selective surface structure according to the present disclosure at different incident angles of the experimental module, when the transverse magnetic mode (i.e., TM mode, which has no magnetic field component but an electric field component in the propagation direction of the wave) is irradiated at 0 °, 30 ° and 60 °, the passband bandwidth thereof is widened. When the irradiation angle is 60 degrees, the reflectivity of the TM mode in the working frequency band of the first signal transmitting device is-0.91 dB-1.65 dB, and the use requirement is still met. It can be seen that the frequency selective surface structure employed according to the present disclosure has a wide operating frequency band, is insensitive to polarization of incident signals, and can adapt to large-angle incidence (the incident angle can vary within a range of 0 to 60 °), and the center frequency point hardly shifts with the variation of the incident angle. Although the transmittance of the pass band and the reflectivity of the stop band are slightly reduced along with the increase of the incident angle, the pass band and the stop band are still higher, and the requirements of engineering application are met.
In general terms, the frequency selective panel comprises a conductive pattern, which is a single-layer or multi-layer structure. Still preferably, in one embodiment according to the present disclosure, the conductive pattern is configured as a slit structure. Further preferably, in an embodiment according to the present disclosure, the slit structure includes a square ring slit structure. Still further preferably, in an embodiment according to the present disclosure, the square ring slit structure is configured as an interdigital slit structure. Preferably, in one embodiment according to the present disclosure, the frequency selective panel has a ground connection.
In summary, in the signal transmitting apparatus according to the present disclosure, the dielectric panel is disposed between the radiation unit and the bottom of the cover or between the radiation unit and the top of the cover, so that interference with a signal transmitted by another signal transmitting apparatus can be reduced, and radiation performance of a signal transmitting system including the signal transmitting apparatus and another signal transmitting apparatus can be improved.
The above description is only an alternative embodiment of the present disclosure and is not intended to limit the embodiment of the present disclosure, and various modifications and variations of the embodiment of the present disclosure may occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments of the present disclosure should be included in the scope of protection of the embodiments of the present disclosure.
Although embodiments of the present disclosure have been described with reference to several particular embodiments, it should be understood that embodiments of the present disclosure are not limited to the particular embodiments disclosed. The embodiments of the disclosure are intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. The scope of the claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
Claims (14)
1. A signal transmission apparatus, characterized in that the signal transmission apparatus comprises:
the mask body comprises a mask body bottom and a mask body top arranged opposite to the mask body bottom;
a radiating unit disposed between the cover bottom and the cover top and configured to radiate a wireless signal; and
a media panel disposed between the radiant element and the enclosure bottom or between the radiant element and the enclosure top.
2. The signal emitting device of claim 1, wherein a distance between the dielectric panel and the top of the enclosure is associated with a wavelength of a signal emitted by another signal emitting device used in conjunction with the signal emitting device.
3. The signal transmitting device of claim 2, wherein the distance is equal to an integer multiple of one half of the wavelength plus one quarter of the wavelength.
4. The signal transmitting device of claim 1, wherein the dielectric panel and the cover are the same material.
5. An antenna system, characterized in that the antenna system comprises:
a first signal transmitting device, wherein the first signal transmitting device is the signal transmitting device according to any one of claims 1 to 4; and
the second signal transmitting device is arranged on one side, far away from the medium panel, of the bottom of the cover body, and the working frequency of the first signal transmitting device is different from that of the second signal transmitting device.
6. The antenna system of claim 5, further comprising:
a frequency selective panel configured as a frequency selective surface and disposed within the first signal transmission device or within the second signal transmission device.
7. The antenna system of claim 6, wherein the first signal transmitting device further comprises a feed board, and wherein the feed board is configured to be between and feed the radiating element and the frequency selective panel when the frequency selective panel is disposed within the first signal transmitting device.
8. The antenna system of claim 6, wherein the frequency selective panel comprises a conductive pattern, the conductive pattern being a single layer or a multi-layer structure.
9. The antenna system of claim 8, wherein the conductive pattern is configured as a slot structure.
10. The antenna system of claim 9, wherein the slot structure comprises a square ring slot structure.
11. The antenna system of claim 10, wherein the square-ring slot structure is configured as an interdigitated slot structure.
12. The antenna system of claim 6, wherein the frequency selective panel has a ground connection.
13. The antenna system according to claim 5, wherein the first signal transmitting means and the second signal transmitting means are each constructed as an independent structure.
14. The antenna system of claim 5, wherein the operating frequency of the second signal transmitting means is higher than the operating frequency of the first signal transmitting means.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571128.8A CN114824794A (en) | 2022-05-24 | 2022-05-24 | Signal transmitting device and antenna system |
| PCT/CN2023/081270 WO2023226541A1 (en) | 2022-05-24 | 2023-03-14 | Signal transmitting apparatus and antenna system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571128.8A CN114824794A (en) | 2022-05-24 | 2022-05-24 | Signal transmitting device and antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114824794A true CN114824794A (en) | 2022-07-29 |
Family
ID=82516905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210571128.8A Pending CN114824794A (en) | 2022-05-24 | 2022-05-24 | Signal transmitting device and antenna system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114824794A (en) |
| WO (1) | WO2023226541A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226541A1 (en) * | 2022-05-24 | 2023-11-30 | 普罗斯通信技术（苏州）有限公司 | Signal transmitting apparatus and antenna system |
| WO2024027465A1 (en) * | 2022-07-30 | 2024-02-08 | 华为技术有限公司 | Antenna system and base station |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101318830B1 (en) * | 2010-09-07 | 2013-10-17 | 쿤지에 쭈앙 | Dual-polarized microstrip antenna |
| CN215497084U (en) * | 2021-08-30 | 2022-01-11 | 罗森伯格（上海）通信技术有限公司 | Integrated antenna device |
| CN216362158U (en) * | 2021-12-23 | 2022-04-22 | 康普技术有限责任公司 | Integrated base station antenna |
| CN216563497U (en) * | 2022-01-25 | 2022-05-17 | 罗森伯格技术有限公司 | Integrated antenna |
| CN114824794A (en) * | 2022-05-24 | 2022-07-29 | 罗森伯格技术有限公司 | Signal transmitting device and antenna system |
-
2022
- 2022-05-24 CN CN202210571128.8A patent/CN114824794A/en active Pending
-
2023
- 2023-03-14 WO PCT/CN2023/081270 patent/WO2023226541A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226541A1 (en) * | 2022-05-24 | 2023-11-30 | 普罗斯通信技术（苏州）有限公司 | Signal transmitting apparatus and antenna system |
| WO2024027465A1 (en) * | 2022-07-30 | 2024-02-08 | 华为技术有限公司 | Antenna system and base station |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023226541A1 (en) | 2023-11-30 |
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