Patent Application
20230030388
The disclosure relates to a cover device for implementing an optimal beam of a single band antenna.
In order to satisfy increases in demand for wireless data traffic now that a 4G communication system is commercially available, efforts are being made to develop an enhanced 5G communication system or a pre-5G communication system. Therefore, a 5G communication system or a pre-5G communication system is referred to as a beyond 4G network communication system or a post LTE system. In order to achieve a high data transmission rate, consideration is being given to implementing the 5G communication system in a mmWave band (e.g., 60 GHz band). In order to mitigate any route loss of electronic waves in a mmWave band and to increase transmission distances of electronic waves, the technologies of beamforming, massive multiple input and multiple output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beamforming, and large scale antenna are being discussed for the 5G communication system. Further, in order to enhance networks in the 5G communication system, the technologies of an innovative small cell, advanced small cell, cloud radio access network (cloud RAN), ultra-dense network, device to device communication (D2D), wireless backhaul, moving network, cooperative communication, coordinated multi-points (CoMP), and interference cancellation are being developed. Further, hybrid frequency shift keying and quadrature amplitude modulation (FQAM) and sliding window superposition coding (SWSC), which are advanced coding modulation (ACM) methods; and filter bank multi carrier (FBMC), non-orthogonal multiple access (NOMA), and sparse code multiple access (SCMA), which are advanced access technologies, are being developed for the 5G system.
Innovation of Internet from a human-centered connection network in which a human generates and consumes information to an Internet of Things (IoT) network that gives and receives and processes information to and from distributed components such as things has occurred. Internet of Everything (IoE) technology in which big data processing technology through connection to a cloud server is combined with IoT technology has been appeared. In order to implement the IoT, technology components such as sensing technology, wired and wireless communication and network infrastructure, service interface technology, and security technology are required; thus, nowadays, research is being carried out on technology of a sensor network, machine to machine (M2M), and machine type communication (MTC) for connection between things. In an IoT environment, an intelligent Internet technology (IT) service that collects and analyzes data generated in connected things to provide a new value to human lives may be provided. The IoT may be applied to the field of a smart home, smart building, smart city, smart car or connected car, smart grid, health care, smart home appliances, and high-tech medical service through fusion and complex connections between existing information technology (IT) and various industries. Accordingly, various attempts for applying a 5G communication system to an IoT network are being made. For example, 5G communication technologies such as a sensor network, machine to machine (M2M), and machine type communication (MTC) have been implemented by the technique of beamforming, MIMO, and array antenna. Application of a cloud RAN as the foregoing big data processing technology may be an example of convergence of 5G technology and IoT technology.
As described above, because an ultrahigh frequency band is sensitive to a radio wave environment, when implementing a base station in a 5G communication system, various preliminary reviews from a material to a thickness of a cover may be required.
In particular, a current cover for an ultrahigh frequency band is sensitive to a dielectric constant and a dielectric loss of a cover material even though it has the same external shape. Therefore, it may be necessary to optimize a thickness of the cover according to a frequency band of a beam emitted from an antenna. That is, in a 5G communication system supporting the current ultrahigh frequency band, because a thickness of an optimized cover corresponding to each frequency band may vary in the base station, each cover mold having the optimized thickness for each frequency band may be produced.
The disclosure relates to a cover device capable of flexibly having an optimal thickness for various frequency bands by positioning a thickness compensation structure having an optimized thickness for each frequency band in a cover frame produced with a common mold.
According to a first embodiment of the disclosure, a cover device for protecting an antenna device for emitting a beam of an ultrahigh frequency band built in an electronic device includes a cover frame including an open window area corresponding to an emission area of the antenna device; and a thickness compensation structure positioned in a window area on the cover frame and having a different thickness according to a frequency band of the beam emitted from the antenna device.
According to a second embodiment of the disclosure, a cover device for protecting an antenna device for emitting a beam of an ultrahigh frequency band built in an electronic device includes a cover frame corresponding to an emission area of the antenna device and including a first area having a predetermined thickness; and a thickness compensation structure positioned in a first area on the cover frame and having a different thickness according to a frequency band of the beam emitted from the antenna device.
In a cover device according to various embodiments of the disclosure, a structure having a predetermined thickness can be positioned in a cover frame so as to have an optimal thickness corresponding to a frequency band of a beam emitted from an antenna device. In this case, the structure having a predetermined thickness may be referred to as a thickness compensation structure.
Therefore, because the cover device according to various embodiments of the disclosure can have an optimal thickness for each frequency band by changing only a thickness compensation structure positioned in a common cover frame, there is no need to implement a cover device with a separate mold so as to have an optimal thickness for each frequency band, as in the prior art.
That is, in a cover device according to various embodiments of the disclosure, by positioning a thickness compensation structure having a different thickness according to a frequency band of a beam emitted from an antenna device in a cover frame, when a base station having the same external shape is implemented, it is possible to flexibly have an optimal thickness for various frequency bands without producing a mold for an antenna cover device having different thicknesses for each frequency band.
Advantages and features of the disclosure, and a method of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the disclosure is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments enable the disclosure to be complete, and are provided to fully inform the scope of the disclosure to those of ordinary skill in the art to which the disclosure pertains, and the disclosure is only defined by the scope of the claims. Like reference numerals refer to like components throughout the specification.
Hereinafter, an operating principle of the disclosure will be described in detail with reference to the accompanying drawings. In the following description, in describing the disclosure, when it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the disclosure, a detailed description thereof will be omitted. Hereinafter, an embodiment of the disclosure will be described with reference to the accompanying drawings. Terms described below are terms defined in consideration of functions in the disclosure, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.
As described above, because the ultrahigh frequency band is sensitive to a radio wave environment, in a 5G communication system, various preliminary reviews are required from a material to a thickness of a cover when implementing the base station.
In particular, when the base station is implemented, a cover device for an ultrahigh frequency band is sensitive to a dielectric constant and dielectric loss of the cover material even though it has the same external shape, thus, it is necessary to optimize a thickness of the cover device according to a band of the antenna. That is, in a current 5G communication system supporting the ultrahigh frequency band, when the base station is implemented, the thickness of the cover device optimized for each frequency band may vary; thus, each cover mold having an optimized thickness for each frequency band is being produced.
For example, as illustrated in
A thickness of an optimal cover device according to the frequency band of the beam emitted from the antenna device described in this specification is only one example derived according to various simulation results, and is not limited to the numerical value of the thickness.
Conventionally, each mold for a cover device having an optimal thickness for each frequency band was produced, and each cover device for an ultrahigh frequency band for each frequency band had no choice but to be produced. For example, it was necessary to produce a radome mold for 28 GHz having a thickness of 3.5 mm, a radome mold for 39 GHz having a thickness of 2.5 mm, and the like, respectively.
As illustrated in
As illustrated in
The window area 310 according to the first embodiment of the disclosure corresponds to an emission area of an antenna in the base station device and may vary according to a position and area of the antenna device built in the base station device. This will be described in detail with reference to
As illustrated in
For example, when a frequency band of a beam emitted from the antenna device built in the base station device is 28 GHz, by positioning the thickness compensation structure 320a having a thickness d1 of 3.5 mm in the window area, it is possible to implement the cover device 330a having an optimal thickness for 28 GHz. Further, when a frequency band of a beam emitted from the antenna device built in the base station device is 39 GHz, by positioning the thickness compensation structure 320b having a thickness d2 of 2.5 mm in the window area, it is possible to implement the cover device 330b having an optimal thickness for 39 GHz.
Accordingly, the cover device according to various embodiments of the disclosure may position a thickness compensation structure having an optimal thickness for each frequency band in one cover frame, thereby having an optimal thickness for each frequency band.
That is, when implementing a base station having the same external shape, by changing only the thickness compensation structure, the cover device of the disclosure can implement a cover device for each of various frequency bands.
Therefore, in the cover device according to various embodiments of the disclosure, by positioning a thickness compensation structure having an optimal thickness in a window area inside a cover frame without necessity to newly produce a separate mold so as to have an optimal thickness for each frequency band, as in the prior art, it is possible to flexibly have an optimal thickness for each of various frequency bands.
For example, because the cover devices 330a and 330b illustrated in
As illustrated in
A window area included in a cover frame according to the first embodiment of the disclosure corresponds to an emission area of an antenna inside a base station device and may vary according to a position and area of an antenna device built in the base station device.
For example, as illustrated in
As illustrated in
As illustrated in
A front assembly type cover frame 600 according to various embodiments of the disclosure may be a cover device by itself as an assembly concept.
As illustrated in
For example, the panel 610 may have a flat plate reinforcement structure having a horizontal periodic structure and having the same structure as a thickness compensation structure. Various embodiments thereof will be described in detail with reference to
As illustrated in
The thickness compensation structure according to various embodiments of the disclosure may include at least one of a thermoplastic material, a thermosetting material, or an inorganic material. For example, the thickness compensation structure according to various embodiments of the disclosure may be made of a single material or a composite material.
The thickness compensation structure according to various embodiments of the disclosure may be external protruding structures 700a and 710a, as illustrated in
The thickness compensation structure according to various embodiments of the disclosure may be positioned in a window area inside the cover frame of the disclosure using methods such as joining, adhesion, fastening, fusion, and coupling.
The thickness compensation structure according to various embodiments of the disclosure may further include a functional layer having a periodic or aperiodic pattern so as to optimize an antenna performance.
The functional layer included in the thickness compensation structure according to various embodiments of the disclosure may be flat plate reinforcement structures 800a and 810a having a round edge periodic structure, as illustrated in
The functional layer included in the thickness compensation structure according to various embodiments of the disclosure may be generated according to various material processing techniques.
For example, at least one processing technique of extrusion, injection molding, compression molding, extrusion blow molding, blow molding, forming expansion molding, extrusion laminating, laminating molding, casting, vacuum forming, press, rotational molding, or compression may be used.
As illustrated in
By positioning various thickness compensation structures illustrated in
The thickness compensation structure according to various embodiments of the disclosure may be positioned in a window area inside the cover frame of the disclosure using methods such as joining, adhesion, fastening, fusion, and coupling.
For example, when a thickness compensation structure 901a having an externally protruding structure illustrated in
Further, when a thickness compensation structure 903a having a stacked structure illustrated in
When a thickness compensation structure 901b having the externally protruding structure illustrated in
Further, when a thickness compensation structure 903b having a stacked structure illustrated in
As illustrated in
The assembled front antenna cover frame 1000b illustrated in
By positioning various thickness compensation structures illustrated in
The thickness compensation structure according to various embodiments of the disclosure may be positioned in a window area inside the cover frame of the disclosure using methods such as bonding, adhesion, fastening, fusion, and coupling.
For example, when a thickness compensation structure 1001 having an externally protruding structure illustrated in
Further, when a thickness compensation structure 1003 having a stacked structure illustrated in
As illustrated in
When a thickness compensation structure 1110 having a panel structure including a side part is coupled to a window area of the side antenna cover frame 1100 illustrated in
As illustrated in
The cover frame according to the second embodiment of the disclosure may include a first area to which a thickness compensation structure may be added, wherein the first area may be positioned in at least one area of an upper part, a lower part, a front part, or a side part of the cover frame. Further, the first area may correspond to an emission area of the antenna device.
The cover frame 1200 according to the second embodiment of the disclosure illustrated in
As illustrated in
For example, when a frequency band of a beam emitted from the antenna device built in the upper end of the base station device is 28 GHz, by adding the thickness compensation structure 1220a having a thickness of d1 to the upper end of the cover frame 1200 according to the second embodiment having a predetermined thickness d0, the upper antenna cover device 1230a having an optimal thickness of 3.5 mm (d0+d1) for 28 GHz may be completed.
Further, when a frequency band of a beam emitted from the antenna device built in an upper end of the base station device is 39 GHz, by adding the thickness compensation structure 1220b having a thickness of d2 to an upper end of the cover frame 1200 according to the second embodiment having a predetermined thickness d0, the upper antenna cover device 1230b having an optimal thickness of 2.5 mm (d0+d2) for 39 GHz may be completed.
Accordingly, by adding a thickness compensation structure to one cover frame having a predetermined thickness, the cover device according to various embodiments of the disclosure may have an optimal thickness for each frequency band.
That is, when implementing a base station having the same external shape, by changing only the thickness compensation structure, the cover device of the disclosure can implement a cover device for each of various frequency bands.
Therefore, in the cover device according to various embodiments of the disclosure, by adding a thickness compensation structure having an optimal thickness to the inside of the cover frame without necessity to newly produce a separate mold having an optimal thickness for each frequency band, as in the prior art, the cover device can flexibly have an optimal thickness for various frequency bands without changing in an external shape of the cover device.
For example, in the cover devices 1230a and 1230b illustrated in
As illustrated in
An area having a thickness d0 of the cover frame according to the second embodiment of the disclosure corresponds to an emission area of an antenna inside the base station device, and may vary according to a position and area of the antenna device built in the base station device.
For example, as illustrated in
Further, when the antenna device is built in the front surface of the base station device, a front area 1310b of a front antenna cover frame 1300b may have a thickness do, and when the antenna device is built in the side surface of the base station device, a side area 1310c of a side antenna cover frame 1300c may have a thickness d0.
As illustrated in
As illustrated in
As illustrated in
As illustrated in
As illustrated in
As illustrated in
In graphs illustrated in
Because it can be seen that an antenna gain corresponding to a vertical side is uniform even at various beam angles corresponding to a horizontal side in the graph of
In the specific embodiments of the disclosure described above, components included in the disclosure are expressed in the singular or plural according to the specific embodiments presented. However, the singular or plural expression is appropriately selected for a situation presented for convenience of description, and the disclosure is not limited to the singular or plural component, and even if a component is represented in the plural, it may be configured with the singular, or even if a component is represented in the singular, it may be configured with the plural.
In the detailed description of the disclosure, although specific embodiments have been described, various modifications are possible without departing from the scope of the disclosure. Therefore, the scope of the disclosure should not be limited to the described embodiments and should be defined by the claims described below as well as by those equivalent to the claims.
Various embodiments of the disclosure and terms used therein are not intended to limit the technology described in the disclosure to a specific embodiment, but it should be understood to include various modifications, equivalents, and/or substitutions of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar components. The singular expression may include the plural expression unless the context clearly dictates otherwise. In the disclosure, expressions such as “A or B”, “at least one of A and/or B”, “A, B or C” or “at least one of A, B and/or C” may be included all possible combinations of the items listed together. Expressions such as “first” or “second” may modify the corresponding components regardless of order or importance, and are only used for distinguishing one component from another component and do not limit the components. When any (e.g., first) component is referred to as being “connected (functionally or communicatively)” or “accessed” to another (e.g., second) component, the component may be directly connected to the component or may be connected through another component (e.g., third component).
As reference numerals in relation to the drawings. 300 may indicate a cover frame. 320a and 320b may indicate a thickness compensation structure, and 330a and 330b may indicate a cover device.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2019-0172433 | Dec 2019 | KR | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/KR2020/018337 | 12/15/2020 | WO |
