Antenna device

Abstract

The invention discloses an antenna device. According to one embodiment of the present disclosure, there is provided an antenna device comprising: at least one antenna board extending in a longitudinal direction, each of which is configured to form at least one circuit pattern; a dielectric located at an upper portion of each of the at least one antenna plates for changing a contact position with respect to the at least one circuit pattern; a connector which is located at the lower part of each of the at least one antenna plate and is formed so as to protrude from one surface of the lower part; and an antenna filter (antenna filter) that is detachably coupled to the connector.

Description

Technical Field

[0001] This disclosure relates to antenna devices. More specifically, it relates to an antenna device including a phase conversion device. Background Technology

[0002] The contents described in this section are for background information only and do not constitute prior art.

[0003] Antenna devices achieve the highest coverage efficiency when forming a horizontal beam. However, in some cases, due to interference or losses, it is necessary to adjust the beam angle to the vertical direction. In such cases, mechanical or electronic beam tilting methods are required to adjust the beam to the vertical direction of the antenna device.

[0004] Mechanical beam tilting adjusts the beam angle by directly tilting the antenna downwards. While this method is relatively simple, it is somewhat inconvenient due to various reasons such as the need for on-site visits by operators and the need to disconnect the power during operation.

[0005] Electronic beam tilting is based on multi-line phase shifters (MLPS). Specifically, electronic beam tilting adjusts the beam angle by introducing signals with different phases into multiple radiating elements arranged vertically.

[0006] To achieve electronic beam tilting, the antenna device may include a phase shifter. The phase shifter creates a phase difference between the input and output signals by appropriately delaying the input signal. This delay can be achieved by changing the length of the transmission line or the signal propagation speed within the transmission line.

[0007] Furthermore, in a massive MIMO system, each RF chain has a corresponding filter and antenna subarray, with a phase-shifting device located between the filter and the antenna subarray in the RF signal path. In the prior art, the phase-shifting device is located behind the antenna, and this structure utilizes a separate transmission line medium, such as a printed circuit board (PCB).

[0008] However, the addition of a phase conversion device increases the product size and introduces transmission losses. To transmit the same power, the output power of the power amplifier must be increased to compensate for the increased losses. As the output power of the power amplifier increases, the heat generation also increases. To meet the heat dissipation requirements, the size of the heat dissipation structure must be increased, which will further increase the size and weight of the multi-input / output system chassis. Summary of the Invention

[0009] (a) Technical problems to be solved Therefore, in order to solve the above problems, the object of the present invention is to provide an antenna device that can minimize path loss caused by phase transition, reduce heat generation, and reduce the overall size and weight of the device.

[0010] (II) Technical Solution To achieve the aforementioned objective, an antenna device is provided according to an embodiment of the present disclosure, comprising: at least one antenna board extending longitudinally, each for forming at least one circuit pattern; a dielectric located on the upper portion of each of the at least one antenna board for changing the contact position relative to the at least one circuit pattern; a connector located on the lower portion of each of the at least one antenna board and formed protrudingly on one side of the lower portion; and an antenna filter detachably coupled to the connector.

[0011] (III) Beneficial Effects As described above, according to this embodiment, the antenna size does not increase even when equipped with a phase conversion device. Furthermore, since phase conversion does not require the generation of a separate circuit pattern, but is achieved using the shortest path circuit pattern, path loss can be minimized. This effectively suppresses heat generation and avoids increasing the overall system size and weight. Simultaneously, by integrating the connector portion connecting the RF link into the antenna module, the size of the antenna filter module can be minimized, and internal space can be utilized more effectively. Attached Figure Description

[0012] Figure 1 This is an exploded perspective view of a portion of an exploded antenna apparatus according to an embodiment of the present disclosure.

[0013] Figure 2 This is an assembly perspective view and enlarged view of a portion of the structure of an antenna device viewed from above according to an embodiment of the present disclosure.

[0014] Figure 3 This is an assembly perspective view of the antenna device from below, according to an embodiment of the present disclosure.

[0015] Figure 4 yes Figure 2 The cross-sectional view of the antenna device after it has been cut along the A-A' direction, excluding the cover.

[0016] Figure 5 yes Figure 2 A cross-sectional view of the region where the antenna filter is located after the antenna device is cut along the B-B' direction. Detailed Implementation

[0017] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. When labeling the drawings, the same reference numerals are used as much as possible, even if the same components appear in different drawings. It should also be noted that throughout this specification, detailed descriptions of known components and functions are omitted if it is believed that such detailed descriptions would obscure the subject matter of this disclosure.

[0018] In describing the constituent elements of the embodiments of this disclosure, terms such as first, second, i), ii), a), and b) may be used. These terms are merely for distinguishing the corresponding constituent element from other constituent elements and do not limit their nature, order, or sequence. Throughout the specification, if a constituent element "comprises" or "possesses" another constituent element, unless otherwise specifically stated to the contrary, it shall be understood that a constituent element further includes the other constituent element, rather than that a constituent element excludes the other constituent element.

[0019] Figure 1 This is an exploded perspective view of a portion of an exploded antenna apparatus according to an embodiment of the present disclosure.

[0020] Figure 2 This is an assembly perspective view and enlarged view of a portion of the structure of an antenna device viewed from above according to an embodiment of the present disclosure.

[0021] Figure 3 This is an assembly perspective view of the antenna device from below, according to an embodiment of the present disclosure.

[0022] Figure 4 yes Figure 2 The cross-sectional view of the antenna device after it has been cut along the A-A' direction, excluding the cover.

[0023] Figure 5 yes Figure 2 A cross-sectional view of the region where the antenna filter is located after the antenna device is cut along the B-B' direction.

[0024] Reference Figures 1 to 5According to an embodiment of the present disclosure, an antenna device 1 includes all or a portion of at least one antenna board 10, at least one radiation element 140, a dielectric 160, at least one disengagement prevention unit 180, a drive unit 200, a guide unit 250, a connector 400, an antenna filter 500, a digital board 600, and a cover unit 700.

[0025] At least one antenna plate 10 extends in the longitudinal direction, and each is used to form at least one circuit pattern 105, 155. The longitudinal direction can refer to... Figure 1 and Figure 2 For example, the direction parallel to the X-axis.

[0026] At least one antenna board 10 may include at least one via hole 102, which is formed through one side of the antenna board to allow antenna signals to pass through. At least one circuit pattern 105, 155 may be electrically connected to the connector 400 described later through the via hole 102.

[0027] In addition, at least one antenna plate 10 may include a base portion 100, a pair of ground walls 120 and a pair of pattern walls 150.

[0028] The base portion 100 extends longitudinally and one side is used to form a first circuit pattern 105.

[0029] The first circuit pattern 105 can be connected to at least one input port (not shown) and multiple output ports (not shown). Furthermore, the first circuit pattern 105 can be used to receive antenna signals from an antenna cable and provide a path for the antenna signals to travel.

[0030] Figure 1 The illustration shows an example where a first circuit pattern 105 is formed on one side of the base portion 100, but the shape of the first circuit pattern 105 is not limited to this. Figure 1 As shown.

[0031] also, Figure 1 and Figure 2 The antenna device 1 shown in the figure includes two antenna plates 10 spaced apart along the longitudinal direction, but it may also include at least one or at least three antenna plates 10.

[0032] The following description assumes that the antenna device 1 includes one or two antenna plates 10. However, the same applies to the structure of the antenna device 1 including at least three antenna plates 10.

[0033] For example, when Figure 1 and Figure 2 When the two antenna plates 10 shown in the diagram are defined as a group, multiple groups can be arranged horizontally along a direction perpendicular to the longitudinal direction. Here, "horizontal" can refer to... Figure 1 and Figure 2 The direction parallel to the Y-axis.

[0034] A pair of grounding walls 120 extend from both lateral sides of the base portion 100 in a direction parallel to the height direction perpendicular to the base portion 100. The height direction may refer to... Figure 1 and Figure 2 The direction parallel to the Z-axis.

[0035] Furthermore, the base portion 100 and the double grounding wall 120 can preferably be integrally formed. In this case, the lateral thickness of the double grounding wall 120 can be the same as the height thickness of the base portion 100, but is not limited to this.

[0036] A pair of patterned walls 150 are arranged protruding from one side of the base portion 100 in a direction parallel to the height direction. At least one side of each of the pair of patterned walls 150 may be formed with a second circuit pattern 155 electrically connected to the first circuit pattern 105.

[0037] For example, a pair of patterned walls 150 can extend longitudinally and be thin walls with the same lateral thickness as a pair of grounded walls 120, but are not limited thereto.

[0038] Furthermore, the second circuit pattern 155 may be formed on the mutually facing surfaces of a pair of pattern walls 150 and electrically connected to the first circuit pattern 105. In this case, at least a portion of the second circuit pattern 155 extends along the height direction, and at least another portion may extend longitudinally.

[0039] However, the second circuit pattern 155 is not limited to being formed on a single patterned wall 150. That is, the second circuit pattern 155 may be partially formed on the base portion 100. In addition, the first circuit pattern 105 and the second circuit pattern 155 are distinguished only by their main formation positions, but can essentially constitute a single circuit pattern.

[0040] At least one radiating element 140 is fixed to one side of the base portion 100 and arranged between a double-patterned wall 150. The at least one radiating element 140 can be used for transmitting and receiving radio waves as well as transmitting high-frequency and low-frequency signals.

[0041] At least one radiating element 140 may include a plurality of radiating elements 140, wherein the plurality of radiating elements 140 may be arranged longitudinally at the same spacing on the base portion 100.

[0042] The dielectric 160 is located on the upper part of at least one of the antenna plates 10 and can change the contact position relative to at least one circuit pattern 105, 155.

[0043] For example, longitudinal movement of at least a portion of the dielectric 160 between each of the two grounding walls 120 and each of the two patterned walls 150 can change the contact position of the dielectric relative to the circuit pattern. Thus, the electrical length of the transmission line carrying the electrical signal can be shortened or lengthened, thereby adjusting the phase difference between the signals.

[0044] Furthermore, phase adjustment can be performed using a circuit pattern with minimal path even without the need for an additional movable circuit board. Therefore, from a structural perspective, the overall size of the antenna device 1 can be miniaturized even with the inclusion of a phase conversion device.

[0045] Furthermore, since phase transition can be achieved using a circuit pattern with the minimum path without requiring the generation of a separate circuit pattern for phase transition, path losses can be minimized. This not only reduces the overall heat generation of the system, but also reduces the overall size and weight of the device by decreasing the size and weight of the heat dissipation components.

[0046] In addition, in order to effectively adjust the phase difference, a pair of patterned walls 150 are arranged at intervals in a direction parallel to the lateral direction, and each of the pair of patterned walls 150 can be arranged close to each of the pair of grounding walls 120.

[0047] Furthermore, the dielectric 160 may be configured to cover at least a portion of each of the pair of patterned walls 150. In this case, when viewed from above in the height direction, at least a portion of the pair of patterned walls 150 may be obscured by the pair of dielectrics 160. The pair of dielectrics 160 may be spaced apart from the base portion 100 in a direction parallel to the height direction.

[0048] In existing technologies, when the dielectric is arranged parallel to the base surface from the ground plane, the area occupied by the dielectric increases, leading to issues with the components being affected by the dielectric. Furthermore, if a structure is used where the dielectric is placed on the PCB pattern, the permittivity is quite high, requiring additional materials such as ceramic components, which increases the overall cost and weight of the phase antenna device.

[0049] According to an embodiment of the antenna device 1 of this disclosure, the base portion 100 and the dielectric 160 can be further separated, and the dielectric 160 is not arranged on the grounding wall 120, thereby overcoming the problems existing in the prior art. Additionally, refer to Figure 4 Based on each of a pair of patterned walls 150, for each of a pair of dielectrics 160, at least a portion of the first free end 162 on one longitudinal side is closer to the base portion 100 than the second free end 164 on the other longitudinal side, the longitudinal side being the side closer to each of a pair of grounding walls 120.

[0050] More specifically, at least a portion of the first free end 162 is located at a position corresponding to the height used to form the second circuit pattern 155, and the second free end 164 may be arranged above the second circuit pattern 155 in the height direction. This prevents interference between the dielectric and the contacts of the circuit pattern.

[0051] Furthermore, at least one anti-detachment portion 180 is fixed to one side of the base portion 100 and arranged between a pair of dielectrics 160. At least a portion of the at least one anti-detachment portion 180 is located above the pair of dielectrics 160 in the height direction to prevent the pair of dielectrics 160 from detaching in the height direction.

[0052] Preferably, at least one anti-detachment portion 180 is fixed to one side of the base portion 100 and does not overlap with the first circuit pattern 105.

[0053] Additionally, refer to Figure 1 The drive unit 200 is arranged on one longitudinal side of the antenna plate 10, and a pair of guide units 250 are arranged laterally spaced apart, and can move back and forth in a direction parallel to the longitudinal direction as the drive unit 200 is driven.

[0054] At this time, each of the pair of dielectrics 160 is connected to each of the pair of guides 250, and can reciprocate in a direction parallel to the longitudinal direction as the pair of guides 250 move. Therefore, at least a portion of each of the pair of dielectrics 160 can move stably in a direction parallel to the longitudinal direction between each of the pair of grounding walls 120 and the pair of patterned walls 150.

[0055] More specifically, the drive unit 200 may include a motor 202 and at least one pinion gear unit 204, wherein the motor 202 is configured to rotate with a motor axis in a direction parallel to the lateral direction, and the at least one pinion gear unit 204 is configured to rotate with the motor 202 with a central axis in a direction parallel to the motor axis.

[0056] An antenna device 1 according to an embodiment of the present disclosure is as follows: Figure 1 As shown, its structure consists of a pair of guide sections 250 receiving driving force transmitted from a motor 202 and driving a pair of dielectrics 160 to move. Therefore, it is not necessary to perform operations such as removing the base section 100 and the pair of grounding walls 120 to ensure the movement path of the pair of dielectrics 160.

[0057] Figure 1 At least one pinion section 204 is composed of two pinion sections 204 arranged laterally apart. The number of pinion sections 204 is not limited to this, and it can also be composed of a single pinion section 204.

[0058] Each of the pair of guide portions 250 may include a rack gear unit 254 formed in the lower part in the height direction for converting the rotational motion of at least one pinion 204 into linear motion. Therefore, the pair of guide portions 250 can move in a direction parallel to the longitudinal direction as the motor 202 rotates, and thus the pair of dielectrics 160 can also move in a direction parallel to the longitudinal direction.

[0059] In addition, in order to stably connect each of the pair of guides 250 to each of the pair of dielectrics 160, each of the pair of dielectrics 160 includes at least one coupling protrusion 165, and each of the pair of guides 250 may include at least one coupling hole 255 for engaging with at least one coupling protrusion 165.

[0060] At this time, at least one coupling protrusion 165 is formed on the upper surface of each of the pair of dielectrics 160 in the height direction, and at least one coupling hole 255 may be formed on at least one side of the longitudinal direction of each of the pair of guides 250.

[0061] Preferably, the number of at least one abutment protrusion 165 and the number of at least one abutment hole 255 are the same. For example, as Figure 1 and Figure 2 As shown, at least one connecting protrusion 165 and at least one connecting hole 255 may each be composed of three, but are not limited to this.

[0062] In addition, such as Figure 1 and Figure 2 As shown, when the antenna device 1 according to an embodiment of the present disclosure includes a plurality of antenna plates 10 spaced apart along the longitudinal direction, the driving unit 200 may be arranged between the plurality of antenna plates 10. In addition, in order to extend in a direction parallel to the longitudinal direction without affecting the first circuit pattern 105, a double guide portion 250 may be provided spaced apart from one side of the plurality of antenna plates 10 in a direction parallel to the height direction.

[0063] At this point, viewed from the lateral side, at least a portion of a pair of guide sections 250 can be shielded by a pair of grounding walls 120 included in each of the plurality of antenna plates 10.

[0064] A pair of guide portions 250 can be positioned close to a pair of grounding walls 120 without interfering with each other. In this case, in order to ensure that the pair of guide portions 250 move in a direction parallel to the longitudinal direction, the longitudinal extension length of the pair of patterned walls 150 can be less than the longitudinal extension length of the pair of grounding walls 120.

[0065] In addition, the pair of guide portions 250, as components for guiding the movement of the pair of dielectrics 160, are preferably made of materials that will not affect the circuit pattern and the dielectrics.

[0066] Furthermore, when the antenna device 1 according to an embodiment of the present disclosure includes a plurality of antenna plates 10 arranged longitudinally at intervals, the antenna device 1 according to an embodiment of the present disclosure may further include an upper portion connecting unit 300, which is located between the plurality of antenna plates 10 and is used to connect the plurality of antenna plates 10.

[0067] For example, the upper connecting portion 300 is detachably connected to the upper surface of each of the pair of guide portions 250 in the height direction. When the upper connecting portion 300 is installed on the upper surface of each of the pair of guide portions 250 in the height direction, multiple antenna plates 10 can be formed as a group. At this time, operations such as moving or replacing components of the antenna device 1 are easier.

[0068] Furthermore, when multiple antenna plates 10 form a group, it is obvious that the multiple groups can be arranged side by side in both the longitudinal and transverse directions. For example, refer to... Figure 4 It can be seen that even excluding the antenna plate 10 shown in the figure, the newly added antenna plates 10 can be arranged along both sides of the horizontal direction.

[0069] In one example, the antenna plate 10 is arranged along the positive Y-axis. The base portion 100 is positioned biased towards the negative Y-axis with the center of the pinion portion 204 as a reference. The base portion 100 can be arranged differently in the positive Y-axis direction. In this case, the number of pinion portions 204 can be increased, and the position of the motor 202 can be further moved towards the positive Y-axis direction.

[0070] Additionally, when multiple antenna plates 10 are added vertically, in Figure 1 and Figure 2 A drive unit 200, a pair of guide units 250 and an upper connecting unit 300 may be added to one or both sides of the longitudinal direction of the two base parts 100 shown in the figure.

[0071] A connector 400 is formed protruding from one side of the lower portion of at least one antenna plate 10. For example, the connector 400 may protrude from one side of the base portion 100 and be formed on the side opposite to the side used to form at least one circuit pattern 105, 155.

[0072] The connector 400 is configured to electrically connect the antenna filter 500 (described later) and the digital board 600. Preferably, the connector 400 and the antenna board 10 can be integrally formed.

[0073] At this time, the connector 400 can be integrally formed with the base portion 100, a pair of grounding walls 120 and a pair of patterned walls 150, and manufactured by plastic electroplating (PEP) process.

[0074] When using PEP technology, circuit patterns can be formed using a plastic panel without using a separate printed circuit board (PCB), and the three-dimensional structure can be injection molded into a single unit. Therefore, the overall weight and unit price of the antenna device 1 can be reduced.

[0075] The antenna filter 500 is detachably coupled to the connector 400. For example, the antenna filter 500 can be coupled and disassembled in a longitudinal direction parallel to the connector 400, but is not limited thereto, and can also be coupled and disassembled in the vertical direction or laterally.

[0076] At this point, the antenna filter 500 is independent of the antenna board 10 and is constructed separately, so it is easier to replace the antenna filter 500 separately.

[0077] Additionally, refer to Figure 5 One longitudinal side of the antenna filter 500 can be electrically connected to at least one circuit pattern 105, 155, and the other longitudinal side of the antenna filter 500 can be electrically connected to the connector 400.

[0078] The antenna filter 500 may include a signal connecting unit 550 formed on one longitudinal side, which may be electrically connected to the via 102.

[0079] To effectively transmit antenna signals, with height as a reference, the antenna filter 500 and the dielectric 160 can be arranged such that at least one antenna plate 10 is present between them and at least a portion of each corresponds to the other. That is, when the antenna filter 500 is connected to the connector 400, the position of the antenna filter 500 below the base portion 100 corresponds to the position of the dielectric 160 located above the base portion 100.

[0080] The digital board 600 is configured to be electrically connected to one end of the connector 400 in the extension direction. The antenna filter 500, which can be coupled to the connector 400, is located on the upper part of the digital board 600.

[0081] Therefore, when the digital board 600 is combined with the antenna board 10, the antenna filter 500 can be located on top of the digital board 600 independently of the combination operation, thus avoiding the antenna filter 500 from bearing the load caused by the assembly of the digital board 600 and the antenna board 10.

[0082] In particular, when the antenna filter 500 according to an embodiment of the present disclosure is a bellows filter made of folded sheets, it may be susceptible to external loads; however, with such an arrangement, the antenna filter 500 can be protected from loads generated by other components.

[0083] Additionally, the digital board 600 may include an elastic supporting unit 605, which is formed on one side of the digital board 600 and is used to support the connector 400 and is elastically deformable. Figure 4 The number of elastic support parts 605 shown in the diagram is three, but it is not limited to this.

[0084] When the antenna board 10 and the digital board 600 are combined, the elastic support 605 can play a buffering role even when subjected to external force, thereby minimizing the external force acting on the antenna filter 500.

[0085] The cover 700 is configured to cover the upper part of the digital panel 600. The cover 700 can protect the digital panel 600 from external impacts and pollution sources, and also acts as a shield.

[0086] The cover 700 may have a connector hole 705 formed on one side, such as the top surface of the cover 700, through which the connector 400 passes. The connector 400 passes through the connector hole 705 and connects to the digital board 600.

[0087] As described above, the antenna device 1 according to one embodiment of this disclosure, by integrating the connector 400 for connecting the radio frequency link into the antenna module, can minimize the size of the antenna filter module and has the effect of more effectively utilizing internal space. Furthermore, this structure can prevent damage to the antenna filter 500 from external impacts and / or the connection process, and facilitates the replacement of the antenna filter 500.

[0088] The above description is merely illustrative of the technical concept of this embodiment. For those skilled in the art, various modifications and alterations can be made without departing from the essential features of this embodiment. Therefore, this embodiment is intended to illustrate the present disclosure and not to limit the technical concept of this embodiment. The scope of the technical concept of this embodiment is not limited to the above embodiments. The protection scope of this embodiment will be interpreted in accordance with the claims, and all technical concepts equivalent to them should be interpreted as falling within the scope of the rights of this embodiment.

[0089] [Explanation of reference numerals in the attached drawings] 1: Antenna device; 10: Antenna plate; 100: Base portion; 102: Via; 105: First circuit pattern; 120: Grounding wall; 140: Radiating element; 150: Pattern wall; 155: Second circuit pattern; 160: Dielectric; 162: First free end; 164: Second free end; 165: Connecting protrusion; 180: Anti-detachment portion; 200: Drive portion; 202: Motor; 204: Pinion gear assembly; 250: Guide portion; 254: Rack and pinion portion; 255: Connecting hole; 300: Upper connecting portion; 400: Connector; 500: Antenna filter; 550: Signal access portion; 600: Digital board; 605: Elastic support portion; 700: Cover portion; 705: Connector hole [Cross-references to related applications] This patent application claims priority to Korean Patent Application No. 10-2023-0103683 filed with the Korean Intellectual Property Office on August 8, 2023, and Korean Patent Application No. 10-2023-0116138 filed with the Korean Intellectual Property Office on September 1, 2023, the contents of which are incorporated herein by reference.

Claims

1. An antenna device, characterized by comprising: at least one antenna plate extending in a longitudinal direction and each forming at least one circuit pattern; a dielectric disposed on an upper portion of each of the at least one antenna plate for changing a contact position with respect to the at least one circuit pattern; a connector protruding from one side of a lower portion of each of the at least one antenna plate; and an antenna filter detachably coupled to the connector.

2. The antenna device of claim 1, wherein: the one side of the antenna filter in the longitudinal direction is electrically connected to the at least one circuit pattern, the other side of the antenna filter in the longitudinal direction is electrically connected to the connector.

3. The antenna device of claim 1, wherein: in the lower portion of the at least one antenna plate, the antenna filter and the dielectric are disposed with the at least one antenna plate therebetween and arranged to correspond to each other in at least a portion thereof in a height direction toward the upper portion.

4. The antenna device of claim 1, wherein: the antenna plate and the connector are integrally formed by a plastic plating process.

5. The antenna device of claim 1, further comprising: a digital plate electrically connected to one end of the connector in an extension direction of the connector, the antenna filter is disposed on an upper portion of the digital plate in a state of being coupled to the connector.

6. The antenna device of claim 5, wherein: the digital plate includes an elastic support portion formed on one side of the digital plate for supporting the connector and elastically deformable.

7. The antenna device of claim 5, further comprising: a cover portion for covering an upper portion of the digital plate, the cover portion includes a connector hole formed on one side of the cover portion for the connector to pass through.

8. The antenna device of claim 1, wherein: the antenna filter is a bellows filter formed of a folded sheet.

9. The antenna device of claim 1, wherein each of the at least one antenna plate includes: a base portion having one side for forming a first circuit pattern; a pair of ground walls extending from both sides of the base portion in a direction parallel to a height direction perpendicular to the base portion; and a pair of pattern walls protrusively disposed from one side of the base portion in a direction parallel to the height direction, at least one side of each of the pair of pattern walls forming a second circuit pattern electrically connected to the first circuit pattern.

10. The antenna device of claim 9, wherein: the dielectric is disposed to be movable in a direction parallel to the longitudinal direction, at least a portion of the dielectric is disposed between each of the pair of ground walls and each of the pair of pattern walls.

11. The antenna device of claim 9, wherein: the pair of pattern walls are disposed apart from each other in a direction parallel to the lateral direction, the pair of pattern walls are disposed close to each other corresponding to the pair of ground walls, respectively.

12. The antenna device of claim 9, wherein: ​ ​ Further comprising at least one radiating element fixed to one face of said base portion and arranged between said pair of pattern walls. Further comprising at least one radiating element fixed to one face of said base portion and arranged between said pair of pattern walls.

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