KR102405013B1 - Antenna apparatus including isolating structure between antenna elements - Google Patents

Abstract

According to various embodiments, in the antenna device, a housing, and a conductive reflector disposed in the housing, the conductive reflector including a first surface facing a first direction and a second surface facing a second direction opposite to the first direction; , a plurality of antenna elements disposed at regular intervals on the first surface of the conductive reflector and at least one isolator disposed between the plurality of antenna elements, wherein the isolation member comprises at least one of the conductive reflectors It is possible to provide an antenna device in which a partial region is bent to a predetermined height in the first direction to be integrally formed. In addition, various embodiments are possible.

Description

Antenna device having an isolation structure between antenna elements

Various embodiments of the present invention relate to an antenna device having an isolation structure between antenna elements.

In general, an antenna device used in a base station may include a plurality of antenna elements (eg, antenna elements) disposed at regular intervals on a metallic reflector in order to optimize radiation performance such as gain and beam characteristics. have. According to an embodiment, since the plurality of antenna elements are disposed for each polarization, the size, number, or spacing between the individual antenna elements may affect the volume and weight of the base station antenna device as well as its performance.

The above-described base station antenna device may be configured such that a plurality of antenna elements are densely arranged in order to reduce the size thereof, and in this case, the interference between individual antenna elements is increased, so that radiation characteristics are deteriorated, which also affects the overall performance of the base station antenna device can give In order to solve this problem, the base station antenna device may include at least one isolator separately provided between the antenna elements.

However, since the isolation member is provided separately from the reflector, an additional process is required depending on realization and assembling property, thereby reducing manufacturing efficiency and increasing manufacturing cost. In addition, if the concentration of the operator is lowered during the additional assembly process of disposing the isolation member on the reflector, it may cause deformation or damage to the pre-mounted antenna elements. In addition, even if the isolation member is disposed on the reflector, an unnecessary signal is generated due to poor physical contact between two metal members (eg, a reflector and an isolation member) that may occur during the work process, resulting in interference with passive element intermodulation distortion ( PIMD (passive intermodulation distortion) may occur.

Various embodiments of the present invention may provide an antenna device having an isolation structure between antenna elements.

Various embodiments of the present invention may provide an antenna device having an isolation structure between antenna elements that can contribute to cost reduction and improved manufacturing efficiency since an additional process is not required.

Various embodiments of the present invention may provide an antenna device having an isolation structure between antenna elements configured to prevent deterioration of the radiation characteristics of the antenna elements.

According to various embodiments, in the antenna device, a housing, and a conductive reflector disposed in the housing, the conductive reflector including a first surface facing a first direction and a second surface facing a second direction opposite to the first direction; , a plurality of antenna elements disposed at regular intervals on the first surface of the conductive reflector and at least one isolator disposed between the plurality of antenna elements, wherein the isolation member comprises at least one of the conductive reflectors It is possible to provide an antenna device in which a partial region is bent to a predetermined height in the first direction to be integrally formed.

According to various embodiments, in the antenna device, a housing, and a conductive reflector disposed in the housing, the conductive reflector including a first surface facing a first direction and a second surface facing a second direction opposite to the first direction; , a plurality of antenna elements disposed at regular intervals on the first surface of the conductive reflector, at least one supporter disposed between the plurality of antenna elements, and an upper portion of the support member insulated It is possible to provide an antenna device including an isolator disposed, wherein the support member is integrally formed by bending at least a partial region of the conductive reflector to a predetermined height in the first direction.

According to various embodiments of the present invention, manufacturing efficiency can be improved and manufacturing cost can be reduced by integrally forming a reflector and an isolator, and a physical contact defect between the isolation member and the reflector is prevented in advance, thereby radiating characteristics of antenna elements deterioration can be prevented.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the art to which the present disclosure belongs from the description below. will be.

1A is a perspective view of a base station antenna apparatus according to various embodiments of the present invention.
1B is a diagram illustrating an internal configuration of a base station antenna apparatus according to various embodiments of the present invention.
1C is a side view of the base station antenna apparatus of FIG. 1B according to various embodiments of the present disclosure;
2A is a perspective view illustrating a configuration of a reflector having an isolator according to various embodiments of the present disclosure;
2B is a block diagram of an antenna device illustrating a state in which antenna elements are isolated by an isolation member according to various embodiments of the present disclosure;
3 is a graph comparing the degree of interference of the antenna device according to the presence or absence of an isolation member according to various embodiments of the present invention.
4 is a configuration diagram illustrating a state in which antenna elements are isolated by an isolation member according to various embodiments of the present disclosure.
5A to 5C are diagrams illustrating a radiation pattern of an antenna device expressed according to an isolation member provided in various ways according to various embodiments of the present disclosure;
6 to 8 is a block diagram of an antenna device including an isolation member according to various embodiments of the present invention.
9 is a block diagram of an antenna device illustrating a state in which an isolation member is used as a support according to various embodiments of the present invention.

The various embodiments of this document and the terms used therein are not intended to limit the technology described in this document to a specific embodiment, but it should be understood to cover various modifications, equivalents, and/or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for like components. The singular expression may include the plural expression unless the context clearly dictates otherwise. In this document, 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” refer to all of the items listed together. Possible combinations may be included. Expressions such as "first", "second", "first" or "second" can modify the corresponding elements regardless of order or importance, and are used only to distinguish one element from another element. The components are not limited. When an (eg, first) component is referred to as being “(functionally or communicatively) connected” or “connected” to another (eg, second) component, that component is It may be directly connected to the component or may be connected through another component (eg, a third component).

As used herein, the term “module” includes a unit composed of hardware, software, or firmware, and may be used interchangeably with terms such as, for example, logic, logic block, component, or circuit. A module may be an integrally formed part or a minimum unit or a part of performing one or more functions. For example, the module may be configured as an application-specific integrated circuit (ASIC).

Various embodiments of the present document include instructions stored in a machine-readable storage media (eg, internal memory 136 or external memory 138) that can be read by a machine (eg, a computer). It may be implemented as software (eg, the program 140). The device is a device capable of calling a stored command from a storage medium and operating according to the called command, and may include the electronic device (eg, the electronic device 101 ) according to the disclosed embodiments. When the instruction is executed by a processor (eg, the processor 120 ), the processor may perform a function corresponding to the instruction by using other components directly or under the control of the processor. Instructions may include code generated or executed by a compiler or interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' means that the storage medium does not include a signal and is tangible, and does not distinguish that data is semi-permanently or temporarily stored in the storage medium.

According to an example, the apparatus or method according to various embodiments disclosed in this document may be provided by being included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. The computer program product may be distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)) or online through an application store (eg Play Store ^TM ). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

Each of the components (eg, a module or a program) according to various embodiments may be composed of a singular or a plurality of entities, and some sub-components of the aforementioned sub-components may be omitted, or other sub-components may be It may be further included in various embodiments. Alternatively or additionally, some components (eg, a module or a program) may be integrated into a single entity to perform the same or similar functions performed by each corresponding component prior to integration. According to various embodiments, operations performed by a module, program, or other component are sequentially, parallel, repetitively or heuristically executed, or at least some operations are executed in a different order, are omitted, or other operations are added. can be

Hereinafter, the present invention relates to a base station antenna device, and specifically, the present invention shows and describes a beam tilt antenna device including a phase shifter. However, terms used in the present invention, terms referring to components of the device (modified appropriately according to the invention), and the like are exemplified for convenience of description. Accordingly, the present invention is not limited to the terms described below, and other terms having equivalent technical meanings may be used. For example, in the exemplary embodiments of the present invention, even if it is not a base station antenna device, in various antenna devices including a reflector on which a plurality of antenna elements are appropriately disposed, an isolation member (eg, shielding) in order to prevent deterioration of radiation characteristics between respective antenna elements. member) can be used appropriately when applied.

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings. However, in the drawings for convenience of description, the size of the components may be exaggerated or reduced. For example, since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the illustrated bar.

1A is a perspective view of a base station antenna apparatus according to various embodiments of the present invention. 1B is a diagram illustrating an internal configuration of a base station antenna apparatus according to various embodiments of the present invention. 1C is a side view of the base station antenna apparatus of FIG. 1B according to various embodiments of the present disclosure;

1A to 1C , the antenna device 100 may serve as a base station antenna device. According to one embodiment, the antenna device 100 includes a hollow housing 110 and a plurality of antenna elements accommodated in the hollow portion of the housing 110 , 141 , 142 , 143 , 144 , 145 , 146, 147, 148). According to one embodiment, the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 may be disposed at regular intervals on the plate-type conductive reflector 130 disposed inside the housing 110 . have. According to one embodiment, the reflector 130 reflects the signal radiated from the antenna elements 141, 142, 143, 144, 145, 146, 147, and 148 and directs it in a specific direction to secure the directivity of the signal and gain the antenna can improve

According to various embodiments, the reflective plate 130 may include a first surface 1301 facing in a first direction (eg, direction ①) and a second surface 1302 facing a direction opposite to the first surface 1301. can According to an embodiment, the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , and 148 may be disposed on the first surface 1301 of the reflector 130 at regular intervals. According to one embodiment, each of the plurality of antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , and 148 may include two radiators having different polarizations as one antenna element. According to one embodiment, each of the plurality of antenna elements (141, 142, 143, 144, 145, 146, 147, 148) is arranged to form a pair with the neighboring antenna elements, so that the same signal transmitted from the same output port It can be configured to radiate. According to one embodiment, as shown in FIG. 1A , the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 are formed in a 1x8 form on the first surface 1301 of the reflector 130 . can be placed. However, the present invention is not limited thereto, and the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , and 148 may be disposed in a 2x4 shape on the first surface 1301 of the reflector 130 . According to one embodiment, the reflecting plate 130 is disposed on the second surface 1302, so that at least one support member 1303, 1304, 1305, 1306).

According to various embodiments, the antenna device 100 includes a phase shifter 160 disposed on the second surface 1302 of the reflector 130 , and the above-described antenna elements 141 , 142 , 143 forming a pair. , 144 , 145 , 146 , 147 , 148 may include conductive members 151 , 152 , 153 , 154 electrically connecting them, and an input/output terminal 170 . According to an embodiment, the phase converter 160 may receive a signal input from the input port of the input/output terminal 170 , adjust it to a preset phase, and then transmit it to the output port. According to an embodiment, the signals output from each output port of the phase converter 160 and whose phase is adjusted are transmitted through the conductive members 151 , 152 , 153 , 154 to the antenna elements 141 , 142 , 143 , 144 , 145, 146, 147, 148). Accordingly, the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , and 148 may radiate the phase-adjusted signal in a specific direction (eg, generally the first direction of the reflector 130 ). have. According to an embodiment, the input/output terminal 170 may receive a signal generated by a processor and a radio frequency (RF) circuit of a transmitting device (eg, a base station) (not shown) including the antenna device 100 . . According to one embodiment, the input/output terminal 170 is at least a part of the first cover 111 covering one side of the housing 110 after the reflective plate 130 is accommodated in the hollow inner space of the housing 110 . By being exposed, it is possible to provide an electrical connection means with an external electronic device provided from the outside for input/output of signals. According to one embodiment, the other end of the housing 110 may be closed with another second cover 112 after the reflective plate 130 is accommodated in the housing 110 . According to one embodiment, the housing 110 of the antenna device 100 may have a substantially rectangular cross-section of the hollow portion. However, the present invention is not limited thereto, and the housing 110 is provided with a space in which the reflector 130 including the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 and 148 can be accommodated. Alternatively, it may be formed in various shapes such as polygons.

According to various embodiments, recently, even if the same performance is expressed, the antenna device 100 may be advantageous as it has a relatively small volume and is miniaturized. Accordingly, the spacing between the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , and 148 disposed on the reflector 130 is inevitably further narrowed, and the antenna elements 141 and 142 that are narrowed in this way. , 143, 144, 145, 146, 147, and 148), radiation characteristics of each antenna element may be deteriorated due to mutual interference with neighboring antenna elements. For example, each of the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 is an antenna element adjacent to the radiator having the first polarization because radiators having different polarizations are configured as one antenna element. As a result, radiation characteristics of the antenna device may be deteriorated due to signal interference between radiators having a second polarization of . In order to solve this problem, between the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 of the reflector 130 , a conductive isolator 131 , 132 , 133 , 134 , 135 is disposed. , 136, 137) may be disposed. According to one embodiment, the isolation member 131 , 132 , 133 , 134 , 135 , 136 , 137 is arranged in the operating frequency band of the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 . The length, height, shape, etc. may be determined according to the spacing or target performance.

According to various embodiments of the present disclosure, the isolation members 131 , 132 , 133 , 134 , 135 , 136 , and 137 may be integrally formed with the reflective plate 130 . According to an embodiment, the isolation members 131 , 132 , 133 , 134 , 135 , 136 , and 137 are mechanically processed (eg, punched, pressed, etc.) of at least a portion of the reflective plate 130 formed of a conductive material, for example, a metal plate. ) through the bending to have a predetermined height and width in the first direction (eg, the direction ① in FIG. 1A). Due to this configuration, in the antenna device 100 , the PIMD phenomenon due to poor physical contact between the isolation member and the reflector, which was previously separately disposed, can be excluded, and since the isolation member is formed together when the reflector is configured, for disposing the isolation member A separate operation time and process may be shortened, thereby improving operation efficiency and reducing manufacturing costs.

2A is a perspective view illustrating a configuration of a reflector having an isolator according to various embodiments of the present disclosure;

The reflection plate 230 of FIG. 2A may be at least partially similar to the reflection plate 130 of FIG. 1 , or may include other embodiments of the reflection plate.

According to various embodiments, the reflecting plate 230 may be formed to have a width and a length that can be accommodated in the hollow part of the housing (eg, the housing 110 of FIG. 1A ). According to one embodiment, the reflective plate 230 may be formed of a conductive member (eg, a metal plate), and the first surface 2301 and the first surface ( 2301 , and a second surface 2302 facing a second direction opposite to the second surface 2302 .

According to various embodiments, the plurality of isolation members 231 , 232 , 233 , 234 , 235 , 236 , and 237 may be disposed at regular intervals from the first surface 2301 toward the first direction. According to an embodiment, the isolation members 231 , 232 , 233 , 234 , 235 , 236 , and 237 may be integrally formed with the reflection plate 230 . For example, the isolation members 231 , 232 , 233 , 234 , 235 , 236 , and 237 may have a first direction from the first surface 2301 through mechanical processing (punching, pressing, etc.) when processing the reflective plate 230 . It may be formed of a bending member that is bent toward a predetermined height and a predetermined width. According to one embodiment, in the reflection plate 230 , a slot 2311 corresponding to the size of the isolation member may be formed by the isolation member 231 bent from the first surface. According to one embodiment, the slot 2311 has a size that does not affect the radiation characteristics of the antenna elements (eg, the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 of FIG. 1B ). can be formed with According to one embodiment, the antenna elements (eg, the antenna elements 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 of FIG. 1B ) are isolated from the first surface 2301 of the reflector 230 . The members 231 , 232 , 233 , 234 , 235 , 236 , and 237 may be disposed at regular intervals therebetween.

2B is a block diagram of an antenna device illustrating a state in which antenna elements are isolated by an isolation member according to various embodiments of the present disclosure;

The antenna device 200 of FIG. 2B may be at least partially similar to the antenna device 100 of FIGS. 1A to 1C , or may include other embodiments of the antenna device.

Although FIG. 2B shows one isolation member 231 for isolating a pair of antenna elements 241 and 242 from each other, as shown in FIG. 2A , a plurality of isolation members 231 , 232 , 233 , 234 is shown. , 235, 236, 237 are disposed on the reflector 230 and a plurality of antenna elements corresponding thereto (eg, antenna elements 141, 142, 143, 144, 145, 146, 147, 148 of FIG. 1B)) It is obvious that this can be arranged.

Referring to FIG. 2B , the antenna device 200 may include a reflector 230 on which antenna elements 241 and 242 are disposed. According to one embodiment, the reflecting plate 230 is formed integrally with the reflecting plate 230 on the first surface 2301 and includes an isolation member 231 that is bent and extended in a first direction (eg, direction ①). can According to an embodiment, the pair of antenna elements 241 and 242 may be spaced apart from each other with the isolation member 231 interposed therebetween.

According to various embodiments, the antenna elements 241 and 242 may include a first antenna element 241 disposed on one side and a second antenna element 242 disposed on the other side with the isolation member 231 interposed therebetween. have. According to one embodiment, the first antenna element 241 may be disposed to have different polarizations in a manner in which the first radiator 2411 and the second radiator 2412 cross each other. According to an embodiment, the second antenna element 242 may be disposed to have different polarizations in a manner in which the third radiator 2421 and the fourth radiator 2422 intersect each other. Accordingly, the first radiator 2411 and the third radiator 2421 are bound by a divider to operate as one antenna, and the second radiator 2412 and the fourth radiator 2422 are also tied to the divider to operate as one antenna. have. According to one embodiment, since the first radiator 2411 and the third radiator 2421 have polarized waves in the same direction, they may not interfere with each other. Since the second radiator 2412 and the fourth radiator 2422 also have polarized waves in the same direction, they may not interfere with each other. However, since the first radiator 2411 and the fourth radiator 2422 have mutually intersecting polarizations, they may receive mutual interference. ) can be extended from Accordingly, since the first antenna element 241 and the second antenna element 242 are isolated by the isolation member 231 , mutual interference is excluded, and as a result, deterioration of the radiation characteristics of the antenna device 200 can be prevented in advance. .

3 is a graph comparing the degree of interference of the antenna device according to the presence or absence of the isolation member according to various embodiments of the present invention, S14 comparing the degree of interference of the antenna before the application of the isolation member and the degree of interference of the antenna after the application of the isolation member; It is a graph.

As shown, the return loss of the antenna device (eg, the antenna device 200 of FIG. 2B ) after application of the isolation member (eg, the isolation member 231 in FIG. 2B ) is higher than the return loss of the antenna device before the application of the isolation member ( 231 ) It can be seen that the radiation characteristics of the antenna are improved as a result of an average decrease of about 4 dB in the operating frequency band of the device.

4 is a configuration diagram illustrating a state in which antenna elements are isolated by an isolation member according to various embodiments of the present disclosure.

The antenna device 400 of FIG. 4 may be at least partially similar to the antenna device 100 of FIGS. 1A to 1C , or may include other embodiments of the antenna device.

Referring to FIG. 4 , the antenna device 400 may include a reflector 430 on which antenna elements 441 and 442 are disposed. According to one embodiment, the reflecting plate 430 may include a pair of isolation members 431 and 432 formed integrally with the reflecting plate 430 on the first surface 4301 and bent and extended in an upward direction. . According to an embodiment, the pair of antenna elements 441 and 442 may be spaced apart from each other with a pair of isolation members 431 and 432 interposed therebetween. According to one embodiment, the pair of isolation members 431 and 432 may be disposed on the same line. According to an embodiment, the pair of isolation members 431 and 432 may be separately disposed to have a spaced apart space (gap) capable of coupling.

The aforementioned antenna device (eg, the antenna device 200 of FIG. 2A ) is configured by an isolation member (eg, the isolation member 231 of FIG. 2A ) by means of antenna elements (eg, the antenna elements 241 and 242 of FIG. 2A ). ) can be excluded, but due to the characteristic that the isolation member 231 is integrally formed with the reflector (eg, the reflector 230 of FIG. 2A ), the slot corresponds to the reflector (eg, the reflector 230 of FIG. 2A )) (eg, the slot 2311 of FIG. 2A ) may be formed. According to one embodiment, the antenna device (eg, the antenna device 200 of FIG. 2A ) is in one direction (eg, the direction toward the first surface 2301 ) with respect to the reflection plate (eg, the reflection plate 230 of FIG. 2A )). Although the signal should have directivity, the radiation performance may be deteriorated by leakage of the signal in an unwanted direction (eg, the direction toward the second surface 2302) through such a slot (eg, the slot 2311 in FIG. 2A ). can In addition, the antenna device (eg, the antenna device 200 of FIG. 2A ) corresponds to the antenna element (eg, the antenna elements 241 and 242 of FIG. 2A ) so that the image current flow generated in the conductive reflector is prevented by the slot. As a result, parasitic resonance may occur. According to one embodiment, the parasitic resonance formed by the slot 2311 lowers the radiation performance of the antenna elements 241 and 242 or shifts the operating frequency band of the antenna element to an unwanted band, thereby radiating performance of the antenna device. may cause degradation.

According to various embodiments, in order to prevent this phenomenon, the radiation signal generated from the antenna element is leaked in an undesired direction through the slot, or parasitic resonance generated due to the slot is not interfered with by the operating frequency band of the antenna elements. The corresponding slot can be changed in various ways.

According to various embodiments, the isolation member may include a first isolation member 431 and a second isolation member 432 disposed adjacent to the first isolation member 431 . According to an embodiment, the first isolation member 431 may be bent upward from the direction of the first antenna element 441 , and the second isolation member 432 may be bent upward from the direction of the second antenna element 442 . can be bent to Accordingly, the slots 4311 and 4321 formed by the first isolation member 431 and the second isolation member 432 form an isolation member line formed by the first isolation member 431 and the second isolation member 432 . It may be dividedly arranged on both left and right sides as a reference. Therefore, even though the pair of isolation members 431 and 432 formed according to the exemplary embodiment of the present invention is configured to have the same size as the isolation member 231 shown in FIG. 2B , the slots 4311 formed in the reflection plate 430 . , 4321 may be formed in 1/2 the size of the slot 2311 of FIG. 2B by being separated at different positions. This may prevent a signal radiated from the antenna elements 441 and 442 from leaking through the slots 4311 and 4321 by reducing the size of the slot formed in the reflector even though the isolation member of the same size is configured. Furthermore, by shortening the electrical length of the slots 4311 and 4321, the reduced parasitic resonance of the slot may be induced to operate in the out-band.

5A to 5C are diagrams illustrating a radiation pattern of an antenna device expressed according to an isolation member provided in various ways according to various embodiments of the present invention.

5A is a radiation pattern diagram of an antenna device when an isolation member having no slot is disposed on a reflector, and FIG. 5B is a slot (eg, in FIG. 2B ) on a reflector (eg, reflector 230 in FIG. 2B ). A radiation pattern diagram of an antenna device (eg, antenna device 200 of FIG. 2A ) when a single isolation member (eg, isolation member 231 of FIG. 2B ) with a slot 2311 ) is disposed, and FIG. 5C is A pair of isolation members (eg, isolation members 431 and 432 of FIG. 4 ) including divided slots (eg, slots 4311 , 4321 of FIG. 4 ) are provided with a reflective plate (eg, reflective plate 430 of FIG. 4 ). )), a radiation pattern diagram of an antenna device (eg, the antenna device 400 of FIG. 4 ).

As shown, when a single isolation member (eg, the isolation member 231 of FIG. 2B ) having a single slot (eg, the slot 2311 in FIG. 2B ) is disposed, the radiation pattern does not exist and is on a reflective plate It can be seen that the isolating member is deformed compared to the radiation pattern when the isolation member is ideally disposed in. Also, a pair of isolation members (eg, slots 4311 and 4321 in FIG. : The radiation pattern when the isolation members 431 and 432 of FIG. 4) are disposed on the reflecting plate (eg, the reflecting plate 430 of FIG. 4) does not have a slot and the isolation member is ideally disposed on the reflecting plate It can be seen that the radiation pattern is similar.

6 to 8 is a block diagram of an antenna device including an isolation member according to various embodiments of the present invention.

The antenna devices 600 , 700 , and 800 of FIGS. 6 to 8 may be at least partially similar to the antenna device 100 of FIGS. 1A to 1C , or may include other embodiments of the antenna device.

Referring to FIG. 6 , the antenna device 600 may include a reflector 630 on which antenna elements 641 and 642 are disposed. According to one embodiment, the reflecting plate 630 is formed integrally with the reflecting plate 630 on the first surface 6301, and may include three isolation members 631, 632, and 633 that are bent and extended in an upward direction. have. According to one embodiment, the pair of antenna elements 641 and 642 are spaced apart from each other with three isolation members 631, 632, 633) disposed in a generally continuous manner on the same line therebetween. can According to one embodiment, the three isolation members 631 , 632 , and 633 ) may be disposed on the same line, and may be disposed separately to have a space that allows mutual coupling.

According to various embodiments, the isolation member includes a first isolation member 631 , a second isolation member 632 disposed adjacent to the first isolation member 631 , and a second isolation member 632 disposed adjacent to the second isolation member 632 . 3 may include an isolation member 633 . According to an embodiment, the first isolation member 631 may be bent upward from the direction of the second antenna element 642 , and the second isolation member 632 may be bent upward from the direction of the first antenna element 641 . may be bent, and the third isolation member 633 may be bent upward again from the direction of the second antenna element 642 . Accordingly, the slots 6311 , 6321 , and 6331 formed by the first isolation member 631 , the second isolation member 632 , and the third isolation member 633 are respectively formed by the isolation members 631 , 632 , 633 . It may be divided and arranged alternately on both left and right sides based on the isolation member line formed by . Therefore, even though the three isolation members 631, 632, 633 formed according to the exemplary embodiment of the present invention are configured to have the same size as the isolation member 231 shown in FIG. 2B, a slot ( The sizes 6311 , 6321 , and 6331 may be formed to be 1/3 the size of the slot 2311 of FIG. 2B by being separated at different positions. This reduces the size of the slot formed in the reflector even if the isolation member of the same size is configured, thereby preventing the signal radiated from the antenna elements 641 and 642 from leaking through the slots 6311 , 6321 , and 6331 . Furthermore, by further shortening the electrical length of the slots 6311 , 6321 , and 6331 , the reduced parasitic resonance of the slot may be induced to operate in the out-band.

According to various embodiments, in exemplary embodiments of the present invention, even if the isolation member has the same size, two or three isolates are spaced apart from each other by the isolation member divided into two or three based on the line on which the isolation member is disposed. It may include split slots. Although not shown, it is obvious that the isolation member is formed in four or more divisions within the technical scope of the present invention, and the corresponding slots may also be divided into four or more and arranged on the reflective plate.

Referring to FIG. 7 , the antenna device 700 may include a reflector 730 having a first surface 7301 and a second surface 7302 disposed in a direction opposite to the first surface 7301 . . According to an embodiment, the first surface 7301 of the reflector 730 may include antenna elements 741 and 742 disposed at regular intervals. According to an embodiment, the reflecting plate 730 may include an isolation member 731 that is formed integrally with the reflecting plate 730 on the first surface 7301 and is bent and extended in an upward direction. According to one embodiment, the isolation member 731 may be formed in a pentagonal shape with the highest center as described above. Correspondingly, the slot 7311 may also be formed in a pentagonal shape.

Referring to FIG. 8 , the antenna device 800 may include a reflector 830 having a first surface 8301 and a second surface 8302 disposed in a direction opposite to the first surface 8301 . . According to an embodiment, the first surface 8301 of the reflector 830 may include antenna elements 841 and 842 disposed at regular intervals. According to one embodiment, the reflecting plate 830 may include an isolation member 831 formed integrally with the reflecting plate 830 on the first surface 8301 and bent and extended in an upward direction. According to one embodiment, the isolation member 831 may be formed in a curved shape having the highest radius of curvature in the center, unlike the above. Correspondingly, the slot 8311 may also be formed in a curved shape.

According to various embodiments, the shape of the isolation member and the slot corresponding thereto may be formed in various shapes. For example, various shapes (eg, polygonal shape, curved shape including concave and convex parts, etc.) having conditions that can exclude mutual interference between antenna elements without affecting the radiation characteristics of the antenna elements disposed in the vicinity can be formed. In addition, since the isolation member is formed in the various shapes described above and at the same time divided into at least two as described above, the corresponding slot may also be divided and disposed by alternating the isolation member left and right with a zoom core.

9 is a block diagram of an antenna device illustrating a state in which an isolation member is used as a support according to various embodiments of the present invention.

The antenna device 900 of FIG. 9 may be at least partially similar to the antenna device 100 of FIGS. 1A to 1C , or may include other embodiments of the antenna device.

Referring to FIG. 9 , the antenna device 900 may include a reflector 930 having a first surface 9301 and a second surface 9302 disposed in a direction opposite to the first surface 9301 . . According to an embodiment, the first surface 9301 of the reflector 930 may include antenna elements 941 and 942 arranged at regular intervals. According to an embodiment, the reflective plate 930 may include a support member 931 formed integrally with the reflective plate 930 on the first surface 9301 and bent and extended in an upward direction. A corresponding slot 9311 may be formed in the reflective plate 930 by the support member 931 . According to one embodiment, the antenna device 900 may include an isolation member 960 disposed on the support member 931 . According to an embodiment, the isolation member 960 may be fixed by at least one fixing member 951 and 952 made of a dielectric material electrically insulated from the support member 931 .

According to various embodiments, the support member bent upward in the reflector 930 does not play an isolation role as described above in order to exclude mutual interference between the antenna elements 941 and 942, but extends to a certain height. and may be used as a support member for supporting the separate isolation member 960 . For example, when the antenna elements 941 and 942 operate in a relatively high high frequency band (eg, an operating frequency band of 2 GHz or higher), the isolation member 960 is supported at a predetermined height through the support member 931 . Mutual interference between the antenna elements 941 and 942 may be excluded. In this case, compared to the conventional isolation member arranged at a predetermined height by a separate support structure, the isolation member 960 according to the exemplary embodiment of the present invention is integrally formed from the reflection plate 930 and is bent upward. Since it is supported by the supported support member 931 , work efficiency may be increased, assembling man-hours may be reduced, and manufacturing cost may be reduced.

According to various embodiments, the fixing members 951 and 952 may be formed of a dielectric material (eg, a PC material, etc.), and may be bonded, taped, fused or structurally formed with the support member 931 and the isolation member 931 . It can be fixed through assembling or the like. According to one embodiment, the isolation member 960 may have a length greater than, less than, or the same as the support member 931 . According to one embodiment, the isolation member 960 may be formed of a conductive material having a cross-section having a length of a circle, a square, a rectangle, or a polygon.

Although not shown, the support member and the slot corresponding thereto may be formed in various shapes as described above, and by being divided into at least two slots corresponding thereto, the support member member may also be divided and arranged by alternating left and right with the zoom core. .

According to various embodiments, in the antenna device (eg, the antenna device 200 of FIG. 2B ), a housing (eg, the housing 110 of FIG. 1B ), is disposed in the housing and faces a first direction A conductive reflector (eg, a second surface 2302 of FIG. 2B ) including a surface (eg, the first surface 2301 of FIG. 2B ) and a second surface facing a second direction opposite to the first direction (eg, the second surface 2302 of FIG. 2B ) : The conductive reflector 230 of FIG. 2B ), a plurality of antenna elements (eg, the antenna elements 241,242 of FIG. 2B ) disposed at regular intervals on the first surface of the conductive reflector, and the plurality of antenna elements at least one isolator (eg, the isolation member 231 of FIG. 2B ) disposed therebetween, wherein at least a portion of the conductive reflecting plate is bent at a predetermined height in the first direction It is possible to provide an antenna device that is integrally formed.

According to various embodiments, the length, height, or shape of the isolation member may be determined according to an operating frequency band, an arrangement interval, or a target performance of the plurality of antenna elements.

According to various embodiments, the isolation member may be formed in a polygonal shape or a circular shape rounded with a predetermined curvature.

According to various embodiments, the isolation member may be divided into two or more.

According to various embodiments, the isolation member may be collinearly arranged such that at least two isolation members are adjacent to each other.

According to various embodiments, each of the isolation members may be spaced apart from each other within a range that can be coupled to each other.

According to various embodiments, the corresponding slots on the reflector formed by the respective isolation members may be alternately disposed on one side and the other side of the reflector with respect to the isolation member.

According to various embodiments, the number of the isolation member and the slot may be determined according to an operating frequency band, an arrangement interval, or a target performance of the plurality of antenna elements.

According to various embodiments, the number of the isolation member and the slot may be determined based on a size in which the slot is formed so that a radiation signal radiated from the plurality of antenna elements does not leak in the second direction through the slot. can

According to various embodiments, the number of the isolation member and the slot is based on the electrical length of the slot is formed such that the parasitic resonance generated by the slot operates out-band from the operating frequency band of the plurality of antenna elements. can be determined as

According to various embodiments, the isolation member may be integrally formed with the reflection plate through a process of pressing or punching when forming the reflection plate.

According to various embodiments, each of the plurality of antenna elements may include two antenna radiators having different polarizations.

According to various embodiments, at least one conductive member disposed on the second surface of the reflective plate and electrically connecting the plurality of antenna elements to form a pair and disposed on the second surface of the reflective plate, the conductive members and may further include a phase shifter electrically connected to the input/output terminal to adjust the signal input from the input/output terminal to a preset phase and provide the signal to the plurality of antenna elements.

According to various embodiments, in the antenna device, a housing, and a conductive reflector disposed in the housing, the conductive reflector including a first surface facing a first direction and a second surface facing a second direction opposite to the first direction; , a plurality of antenna elements disposed at regular intervals on the first surface of the conductive reflector, at least one supporter disposed between the plurality of antenna elements, and an upper portion of the support member insulated It is possible to provide an antenna device including an isolator disposed, wherein the support member is integrally formed by bending at least a partial region of the conductive reflector to a predetermined height in the first direction.

According to various embodiments, a fixing member made of a dielectric material is interposed between the support member and the isolation member to achieve the electrical insulation.

According to various embodiments, the fixing member may be fixed to the support member and the isolation member by bonding, taping, fusion, or assembling by a structural shape.

According to various embodiments, the isolation member may be formed to have a length greater than, smaller than, or equal to that of the support member.

According to various embodiments, the isolation member may be formed of a conductive material having a cross-section having a length of a circle, a square, a rectangle, or a polygon.

According to various embodiments, the antenna elements may operate in an operating frequency band of 2 GHz or higher.

According to various embodiments, the support member may be integrally formed with the reflection plate through a pressing or punching process when forming the reflection plate.

In addition, various embodiments of the present disclosure disclosed in the present specification and drawings are merely provided for specific examples to easily explain the technical content of the present disclosure and help the understanding of the present disclosure, and are not intended to limit the scope of the present disclosure. Therefore, the scope of the present disclosure should be construed as including all changes or modifications derived from the technical spirit of the present disclosure in addition to the embodiments disclosed herein as being included in the scope of the present disclosure.

200: antenna device 230: reflector
231: isolator 2311: slot
241, 242: antenna element (antenna element)

Claims (20)

An antenna device comprising:
housing;
a conductive reflection plate disposed in the housing and including a first surface facing a first direction and a second surface facing a second direction opposite to the first direction;
a plurality of antenna elements disposed at regular intervals on the first surface of the conductive reflector;
a plurality of isolators dividedly disposed between the plurality of antenna elements, the plurality of isolators comprising a first isolating member and a second isolating member;
The first isolation member is formed by bending from at least a first partial region of the conductive reflection plate to a predetermined height in the first direction,
The second isolation member is formed by bending from at least a second partial region of the conductive reflection plate to a predetermined height in the first direction,
As the at least first partial region is bent, a first slot is formed on the first surface of the conductive reflector,
As the at least second partial region is bent, a second slot is formed on the first surface of the conductive reflector,
The first slot and the second slot are alternately disposed on one side and the other side of the reflector with respect to the first isolation member and the second isolation member.
According to claim 1,
The length, height or shape of the plurality of isolation members is determined according to an operating frequency band, an arrangement interval, or a target performance of the plurality of antenna elements.
According to claim 1,
The plurality of isolation members is an antenna device that is formed in a polygonal shape or a rounded circle with a predetermined curvature.
delete According to claim 1,
The plurality of isolation members are disposed on the same line so as to be adjacent to the antenna device.
6. The method of claim 5,
The plurality of isolation members are spaced apart from each other within a range capable of being coupled to each other.
delete According to claim 1,
The number of the plurality of isolation members and the slots is determined according to an operating frequency band, an arrangement interval, or a target performance of the plurality of antenna elements.
According to claim 1,
The number of the plurality of isolation members and the slots is determined based on sizes in which the slots are formed so that radiation signals radiated from the plurality of antenna elements do not leak in the second direction through the slots. .
The method of claim 1,
The number of the plurality of isolation members and the slots is determined based on an electrical length of the slots formed such that a parasitic resonance generated by the slots operates out-band from an operating frequency band of the plurality of antenna elements. antenna device.
According to claim 1,
The plurality of isolation members are integrally formed with the reflector through a process of pressing or punching when forming the reflector.
According to claim 1,
and each of the plurality of antenna elements includes two antenna radiators having different polarizations.
According to claim 1,
at least one conductive member disposed on the second surface of the reflection plate and electrically connecting the plurality of antenna elements to form a pair; and
a phase shifter disposed on the second surface of the reflector, electrically connected to the conductive members, and provided to the plurality of antenna elements by adjusting a signal input from an input/output terminal to a preset phase Antenna device including.
An antenna device comprising:
housing;
a conductive reflector disposed in the housing and including a first surface facing a first direction and a second surface facing a second direction opposite to the first direction;
a plurality of antenna elements disposed at regular intervals on the first surface of the conductive reflector;
at least one support member disposed between the plurality of antenna elements;
an isolator disposed on top of the support member in an insulated manner;
The support member may be integrally formed by bending at least a partial region of the conductive reflector to a predetermined height in the first direction.
15. The method of claim 14,
and a fixing member made of a dielectric material interposed between the support member and the isolation member to achieve the insulation.
16. The method of claim 15,
The fixing member is fixed to the support member and the isolation member by bonding, taping, fusion, or assembly by a structural shape.
15. The method of claim 14,
The isolation member is formed to have a length greater than, smaller than, or equal to that of the support member.
15. The method of claim 14,
The isolation member is an antenna device in which a cross-section is formed of a conductive material having a length of a circle, a square, a rectangle, or a polygon.
15. The method of claim 14,
The antenna elements operate in an operating frequency band of 2 GHz or higher.
15. The method of claim 14,
The support member is integrally formed with the reflector through a process of pressing or punching when forming the reflector.

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