Array antenna structure and array antenna module

Abstract

An array antenna structure is provided with a first antenna structure (20) and a second antenna structure (30). The first antenna structure (20) is configured from a power supply control substrate (3) having an L-shaped structure in which the right side of the center line in the X direction is cut by a length R in the X direction and a length S in the Z direction. The second antenna structure (30) is configured from a power supply control substrate (3) having an L-shaped structure, the left side of the center line in the X direction being cut by a length R in the X direction and a length S in the Z direction.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an array antenna structure and an array antenna module. BACKGROUND

[0002] In recent years, commercial services of the fifth generation (5G) mobile communication system have started, and as a basic technology to support industries or society, further acceleration of the upgrade of multimedia services is expected to provide new values.

[0003] 5G is a mobile communication system that processes a high frequency band such as a millimeter wave of more than 10 GHz, and a patch antenna (microstrip antenna) is generally used for a transceiving antenna, which is one of planar antennas, and is composed of a dielectric substrate, a radiating element having a wiring formed on both surfaces thereof, and a ground conductor plate.

[0004] In order to obtain a desired radiation directivity (radiation pattern), a multi-element array antenna in which a plurality of patch antennas are regularly arranged in a linear shape or a planar shape or the like is often used.

[0005] In addition, by using a multi-element array antenna, large-capacity communication can be performed.

[0006] An antenna element such as a patch antenna is connected to various signal processing circuits or power supply circuits, and an antenna structure (that is, an antenna module) is configured.

[0007] Further, it is practically used as an antenna unit for communication, which is housed in a frame such as a case or a cover.

[0008] For example, in Patent Literature 1, an antenna structure and an antenna unit are disclosed, which are composed of an antenna element portion and a circuit portion that amplifies an electric signal converted by the antenna element portion.

[0009] The antenna element portion and the circuit portion are respectively composed of separate bodies, are connected to each other by a cable, and become an antenna unit structure in which they are arranged side by side and housed in an external case.

[0010] In recent years, for an antenna unit, if it is large, the place where it is arranged is limited, and thus a strong demand for miniaturization is required.

[0011] However, in the structure of the antenna structure of Patent Literature 1 in which the antenna element portion and the circuit portion are arranged side by side, it is necessary to secure and provide the areas of the antenna element portion and the circuit portion in the planar direction, and thus it is difficult to achieve miniaturization.

[0012] Therefore, in order to achieve miniaturization of antenna elements, for example, Patent Document 2 shows an antenna structure consisting of an antenna element section and a circuit section. The antenna element section consists of a ground conductor and an antenna pattern formed on the upper surface of the ground conductor with a first dielectric substrate in between. The circuit section consists of a circuit pattern formed on the lower surface of the ground conductor with a second dielectric substrate in between and mounted circuit components.

[0013] Existing technical documents Patent documents Patent Document 1: Japanese Utility Model Application Publication No. 06-041220 Patent Document 2: Japanese Patent Application Publication No. 06-152237 Summary of the Invention

[0014] One aspect of the disclosed array antenna structure includes two or more m antenna structures, including a first antenna structure and a second antenna structure. The first and second antenna structures are each configured as follows: an antenna substrate disposed in the XY plane with a length L in the X direction, and a power control substrate disposed in the XZ plane with a length Q and a thickness T in the X direction, connected by a connecting member with their respective centerlines aligned in the X direction, taking the X direction as the long side. The connecting member has bonding electrodes on the surface of an insulating resin. The antenna substrate has n patch antenna elements formed at intervals P in the X direction. The first and second antenna structures are located in the XY plane... The power control board of the first antenna structure is arranged adjacent to each other in the Y direction. The power control board of the first antenna structure has an L-shaped structure. When viewed from the -Y direction, the L-shaped structure has a notch on the right side relative to the center line in the X direction, cut with length R in the X direction and length S in the Z direction. The power control board of the second antenna structure has an L-shaped structure. When viewed from the -Y direction, the L-shaped structure has a notch on the left side relative to the center line in the X direction, cut with length R in the X direction and length S in the Z direction. The power control boards of the first antenna structure and the power control board of the second antenna structure are arranged such that each notch is opposite to the XZ region of the adjacent power control board. Attached Figure Description

[0015] FIG. 1A This is a schematic diagram showing an example of the first antenna structure in Embodiment 1.

[0016] FIG. 1B This is a schematic diagram of an example of the first antenna structure of Embodiment 1 viewed from the right to the left in the Y direction.

[0017] FIG. 1CThis is a schematic diagram of an example of the first antenna structure of Embodiment 1 viewed from the front side to the inside side in the X direction.

[0018] FIG. 2A This is a schematic diagram illustrating an example of another second antenna structure in Embodiment 1.

[0019] FIG. 2B This is a schematic diagram of an example of the second antenna structure of Embodiment 1 viewed from the right to the left in the Y direction.

[0020] FIG. 2C This is a schematic diagram of an example of the second antenna structure of Embodiment 1 viewed from the front side to the inside side in the X direction.

[0021] FIG. 3A This is a schematic diagram illustrating an example of the array antenna structure of Embodiment 1.

[0022] FIG. 3B This is a schematic diagram of an example of the array antenna structure of Embodiment 1 viewed from the top to the bottom in the Z direction.

[0023] FIG. 3C This is a schematic diagram of an example of the array antenna structure of Embodiment 1 viewed from the bottom to the top in the Z direction.

[0024] FIG. 4A This is a schematic diagram of an example of the antenna structure of Embodiment 1 viewed from the -Y direction, that is, from the right side to the left side of the Y direction.

[0025] FIG. 4B This is a schematic diagram of another example of the antenna structure of Embodiment 1 viewed from the -Y direction, that is, from the right side to the left side of the Y direction.

[0026] FIG. 5 This is a schematic diagram of an example of the array antenna module of Embodiment 1 viewed from the bottom to the top in the Z direction. Detailed Implementation

[0027] In the antenna structure shown in Patent Document 2, even if the antenna element is miniaturized, the overall size of the antenna structure is determined by the mounting area of ​​the circuit components on the opposite side of the antenna element portion mounted on the dielectric substrate. Therefore, it is difficult to realize a small antenna structure with a mounting area of ​​less than that of the circuit components.

[0028] Furthermore, when multiple antenna elements are arranged to form an array antenna structure, the spacing between the antenna elements is also limited by the mounting area of ​​the circuit components on the opposite side of the antenna element section mounted on the dielectric substrate. Therefore, there is a problem that it is difficult to realize an array antenna structure that arranges multiple small antenna elements in a narrow and adjacent manner.

[0029] Furthermore, array antenna structures typically arrange antenna elements at intervals of half the wavelength of the communication frequency. However, in cases requiring high-frequency communication such as 39 GHz, half the wavelength becomes a very small value such as 3.75 mm. Therefore, in the antenna structure shown in Patent Document 2, it becomes more difficult to arrange multiple antenna elements at half the wavelength.

[0030] Based on the above, the purpose of this disclosure is to provide a small array antenna structure and array antenna module whose size is not limited by the size or installation area of ​​the circuit components constituting the signal circuit or power supply circuit, and which is compatible with high-frequency communication.

[0031] Hereinafter, the array antenna structure and array antenna module of the present disclosure will be described with reference to the accompanying drawings.

[0032] In addition, in the accompanying drawings, substantially identical components are labeled with the same reference numerals.

[0033] (Implementation Method) FIGS. 1A-1C This is a schematic diagram illustrating an example of the first antenna structure 20 of Embodiment 1. The first antenna structure 20 includes an antenna substrate 1, a power control substrate 3, and a connecting member 4 connecting the antenna substrate 1 and the power control substrate 3. The X, Y, and Z directions are arranged orthogonally to each other.

[0034] exist FIGS. 1A-1C In the antenna substrate 1, it is arranged parallel to the XY plane, and its length in the X direction is L. On the surface of the antenna substrate 1, patch antenna elements 2 are formed at equal intervals P parallel to the X direction, with one or more of them.

[0035] The spacing P of the patch antenna elements 2 is determined by the communication frequency of the device and is half the wavelength. In this embodiment 1, as an example, the communication frequency is 39 GHz, so the spacing P is half the wavelength, i.e., 3.75 mm.

[0036] In this embodiment 1, as an example, the antenna substrate 1 uses "MEGTRON7" multilayer substrate material manufactured by Panasonic Corporation as the substrate, and is manufactured with a width of 3.5 mm, a length of 120 mm and a thickness of 0.8 mm.

[0037] In addition, regarding patch antenna element 2, as an example, five elements with a size of 2mm×2mm are formed from copper foil with a thickness of 18μm and arranged at equal intervals P.

[0038] Furthermore, the optimal number (n) of patch antenna elements 2 can be determined based on the intended use of the antenna. Here, n is an integer greater than 0.

[0039] Furthermore, the n patch antenna elements 2 formed on the surface of the antenna substrate 1 are preferably arranged linearly symmetrically with respect to the center line AA′ in the X direction of the antenna substrate 1. In this way, when the first antenna structure 20 and the second antenna structure 30 are alternately arranged to form an array antenna structure 40, if the patch antenna elements 2 are arranged linearly symmetrically with respect to the center line AA′, then n×m matrix-shaped array antennas can be easily formed simply by aligning the end faces of the power control substrate 3.

[0040] Furthermore, the material of the antenna substrate 1 is not limited to "MEGTRON7", but can also be other glass epoxy materials or ceramic materials.

[0041] On the surface of the antenna substrate 1 opposite to the surface on which the patch antenna element 2 is formed, a bonding electrode 5 is formed for bonding with the bonding electrode 7 of the connecting member 4.

[0042] The connecting member 4, made of insulating resin, extends along the X direction and has a surface arranged parallel to the XY plane and a surface arranged parallel to the XZ plane. On the surfaces arranged parallel to the XY plane and the XZ plane, bonding electrodes 7 are formed for bonding the bonding electrodes 5 of the antenna substrate 1 to the bonding electrodes 6 of the power control substrate 3. FIG. 1C In the middle, the bonding electrode 7 is arranged in an L-shape across a surface arranged parallel to the XY plane and a surface arranged parallel to the XZ plane.

[0043] As an example, the width of the connecting member 4 in the Y direction is 2.0 mm, the height in the Z direction is 2.0 mm, and the length in the X direction is 80 mm.

[0044] As an example, the insulating resin of the connecting member 4 is made of LCP (liquid crystal polymer) with a dielectric constant of 4.3 and a dielectric loss tangent of 0.015, but it is not limited to this and can also be PPA, ABS, PEEK or PC.

[0045] In addition, regarding the bonding electrode 7, as an example, an electrode with a Cu thickness of 10 μm / Ni thickness of 0.2 μm / Au thickness of 0.05 μm was formed by plating, but it can also be formed by printing or dispensing conductive resin or other methods.

[0046] The bonding electrode 7 forms a first bonding portion 8 that is metal-bonded to the bonding electrode 5 of the antenna substrate 1. In this embodiment 1, as an example, a solder composed of Sn-3.0Ag-0.5Cu is used as the material for metal bonding between the bonding electrode 7 and the bonding electrode 5 of the antenna substrate 1.

[0047] In addition, the bonding material is not limited to solder, and other bonding materials such as conductive paste of Ag or Cu can also be used.

[0048] The power control substrate 3 has a substrate thickness T and a length Q in the X direction, and is arranged parallel to the XZ plane. The bonding electrode 6 formed on the surface of the power control substrate 3 forms a second bonding portion 9 that is metallically bonded to the bonding electrode 7 of the connection member 4.

[0049] In addition, in the first embodiment, the bonding between the bonding electrode 6 of the power control substrate 3 and the bonding electrode 7 of the connection member 4 uses Sn - Bi - based solder, but it is not limited thereto.

[0050] In addition, depending on the molten state of solder or the like, which is a material for metallic bonding, the first bonding portion 8 and the second bonding portion 9 may sometimes also be in an integrated shape respectively.

[0051] When the power control substrate 3 is viewed from the - Y direction, it has a rectangular notch V on the right side with respect to the center line A - A' in the X direction, which is cut from the right end edge by a length R in the X direction and from the lower end edge by a length S in the Z direction. By having such a notch V, as will be described later, the electronic components of adjacent substrates can be accommodated in the notch V, and the height limitation of the electronic components can be alleviated.

[0052] In the first embodiment, as an example, the notch V has a length R of 50 mm in the X direction and a length S of 80 mm in the Z direction.

[0053] Although not shown in the figure, circuit components constituting a signal circuit or a power supply circuit are mounted on the power control substrate 3. In addition, in the first embodiment, as an example, the size of the power control substrate 3 is set such that the length Q in the X direction is 150 mm, the length in the Z direction is 100 mm, and the thickness T in the X direction is 1.6 mm.

[0054] As FIG. 1A and FIG. 1B shown, the antenna substrate 1 and the power control substrate 3 are arranged such that their center lines A - A' in the X direction coincide, forming the first antenna structure 20.

[0055] In addition, FIGS. 1A-1C as an example, a case where the relationship between the length L of the antenna substrate 1 in the X direction and the length Q of the power control substrate 3 in the X direction is L < Q is shown, but it is not limited thereto.

[0056] If the ease of manufacturing when joining the antenna substrate 1 and the power supply control substrate 3 via the connecting member 4 is considered, it is preferable that L = Q which enables easy alignment of the antenna substrate 1 and the power supply control substrate 3 by correcting the end faces in the X direction of each substrate. However, even if L < Q or L > Q, there is no obstacle in manufacturing.

[0057] With the structure formed by the above description, a first antenna structure 20 is formed in which an antenna substrate 1 arranged parallel to the XY plane and a power supply control substrate 3 arranged parallel to the XZ plane are electrically connected via a connecting member 4.

[0058] Next, use FIGS. 2A-2C , to describe the structure of another second antenna structure 30 different from the first antenna structure 20 of Embodiment 1.

[0059] The difference between the second antenna structure 30 and the first antenna structure 20 is that when viewed from the -Y direction, with respect to the center line A - A' in the X direction of the power supply control substrate 3, a rectangular notch V is provided on the left side, which is cut from the left end edge by a length R in the X direction and from the lower end edge by a length S in the Z direction. In addition, for the power supply control substrate 3, the material, size, etc. or other constituent elements are the same as those of the first antenna structure 20.

[0060] In addition, the constituent elements of other components such as the antenna substrate 1 and the connecting member 4 of the second antenna structure 30 are also exactly the same as those of the first antenna structure 20.

[0061] As FIG. 2A and FIG. 2B shown, the antenna substrate 1 and the power supply control substrate 3 are arranged such that their center lines A - A' in the X direction coincide, constituting the second antenna structure 30.

[0062] With the structure formed by the above description, a second antenna structure 30 is formed in which an antenna substrate 1 arranged parallel to the XY plane and a power supply control substrate 3 arranged parallel to the XZ plane are electrically connected via a connecting member 4.

[0063] Next, use FIGS. 3A-3C to describe the array antenna structure 40 of this Embodiment 1.

[0064] As FIGS. 3A-3CAs shown, the array antenna structure 40 of this embodiment 1 is constructed by alternately arranging m first antenna structures 20 and second antenna structures 30 in the Y direction. The first antenna structure 20 has a notch V cut with length R in the X direction and length S in the Z direction on the right side relative to the center line AA′ in the X direction of the power control board 3. The second antenna structure 30 has a notch V cut with length R in the X direction and length S in the Z direction on the left side relative to the center line AA′ in the X direction of the power control board 3. m is an integer of 2 or more.

[0065] In such a configuration, such as FIG. 3B as well as FIG. 3C As shown, each antenna structure 20, 30 is arranged with its position aligned at the end of the power control board 3 in the X direction.

[0066] Furthermore, the antenna substrates 1 of adjacent antenna structures 20 and 30 may or may not be in contact with each other and may be separated.

[0067] In this embodiment 1, an example is shown in which four of the first antenna structure 20 and the second antenna structure 30 are alternately arranged. However, as long as the optimal number (m) is made according to the purpose of the antenna, an array antenna structure 40 with n×m patch antenna elements 2 is formed when n patch antenna elements 2 are formed on the antenna substrate 1.

[0068] Furthermore, in this embodiment 1, such as FIG. 3B As shown, the first antenna structure 20 and the second antenna structure 30 are alternately configured with a positional relationship where the Y-direction spacing P of the patch antenna elements 2 formed respectively is half the wavelength of the communication frequency 39GHz, i.e., 3.75mm.

[0069] Thus, a small array antenna structure 40 is formed by arranging n×m patch antenna elements 2 at equal intervals of half wavelength of the communication frequency on a matrix.

[0070] Next, use FIG. 4A , FIG. 4B as well as FIG. 5 The array antenna module of Embodiment 1 will be described below.

[0071] FIG. 4A This is a schematic diagram of the first antenna structure 20 of Embodiment 1 as viewed from the Y direction. FIG. 4B This is a schematic diagram of the second antenna structure 30 of Embodiment 1 as viewed from the Y direction.

[0072] FIG. 5 This is a schematic diagram of the array antenna module 50 of Embodiment 1 as viewed from the Z direction.

[0073] Here,FIGS. 4A-5 The XZ region of each power control substrate 3 is roughly divided into a rectangular region of the notch V, a line-symmetric region U which is a rectangle on the XZ region line-symmetric with respect to the center line A-A' in the X direction and the notch V, and an intermediate region W which is a rectangle between the region of the notch V and the region U. In the intermediate region W, since it is disposed opposite to the intermediate region W of the adjacent first or second antenna structure 20 or 30, electronic components with a relatively low configuration height are arranged. In contrast, in the line-symmetric region U, since it is disposed opposite to the region of the notch V of the adjacent first or second antenna structure 20 or 30, electronic components with a relatively high height that can penetrate the region of the notch V can be arranged.

[0074] That is, in the array antenna structure in which the first antenna structure 20 and the second antenna structure 30 are alternately arranged at equal intervals P in the Y direction, on the intermediate region W of the XZ region of each power control substrate 3 of the first antenna structure 20 and the second antenna structure 30, electronic components 11 with a height H satisfying the relational expression 0 < H < P - T, greater than zero and less than or equal to H, that is, relatively low, are mounted.

[0075] In addition, in each power control substrate 3 of the first antenna structure 20 and the second antenna structure 30, in the line-symmetric region U on the XZ region line-symmetric with respect to the center line in the X direction and the notch V cut by the length R in the X direction and the length S in the Z direction, electronic components 10 with a height I satisfying the relational expression 0 < I < 2P - T, greater than zero and less than or equal to I, that is, relatively high, are mounted.

[0076] In the case of the array antenna module 50 of the first embodiment, as an example, the communication frequency is targeted at 39 GHz, so the interval P between the first antenna structure 20 and the second antenna structure 30 becomes half of the wavelength, that is, 3.75 mm.

[0077] On the other hand, among the components to be mounted on the power control substrates 3 constituting the first antenna structure 20 and the second antenna structure 30, there are also components with a high height such as high-frequency control ICs or power control ICs whose thickness exceeds the interval P, that is, 3.75 mm.

[0078] It is physically impossible to arrange such components on the intermediate region W of the XZ region between the power control substrates 3 where the gap between the first antenna structure 20 and the second antenna structure 30 is only P - T.

[0079] However, if the first antenna structure 20 and the second antenna structure 30 are arranged alternately and located on the XZ region of the power control board 3 in the space created by the notch V cut by the length R in the X direction and the length S in the Z direction of the power control board 3, which is arranged alternately on the right and left sides relative to the center line AA′ in the X direction, then the gap between the first and second antenna structures 20 and 30 becomes 2P-T, and there is enough height for the components that can be mounted. Therefore, the first and second antenna structures 20 and 30, on which all the necessary components are mounted, can be arranged at equal intervals P.

[0080] As a result, a small array antenna module 50 can be realized by arranging n×m patch antenna elements 2 at equal intervals of half wavelength of the communication frequency on a matrix.

[0081] If the structure of Embodiment 1 of this disclosure is used, even if a component with a thickness of more than half a wavelength of the communication frequency is mounted on the region U of the power control board 3, the notch V is opposite to each region U, so that the configuration of the component is allowed without obstruction. Therefore, it is possible to provide a small array antenna module 50 corresponding to high-frequency communication, which has a structure in which patch antenna elements 2 are arranged at equal intervals of half a wavelength of the communication frequency on a matrix.

[0082] According to the array antenna structure 40 and array antenna module 50 of Embodiment 1 of this disclosure, the power control board 3 of the first antenna structure 20 and the power control board 3 of the second antenna structure 30 are arranged such that each notch V is opposite to the XZ region of the adjacent power control board 3, and the arrangement of electronic components mounted in the XZ region is not obstructed by the adjacent power control board 3. Therefore, it is possible to provide a small array antenna structure and array antenna module whose size is not limited by the size or mounting area of ​​the circuit components constituting the signal circuit or power supply circuit.

[0083] That is, the spacing of the antenna elements 2, or in other words, the thickness direction or arrangement direction of the first and second antenna structures 20 and 30, is set to a direction that intersects with, for example, the direction that is affected by the size or mounting area of ​​the circuit components, so that it is not affected by the mounting area, etc.

[0084] Specifically, the mounting area of ​​the circuit components is along the XZ plane and is orthogonal to the thickness direction (Y direction) of the first and second antenna structures 20 and 30. Therefore, the thickness direction is not affected by the mounting area, etc., and small first and second antenna structures 20 and 30 with a mounting area of ​​the circuit components can be realized.

[0085] Furthermore, the mounting area of ​​the circuit components is along the XZ plane and is orthogonal to the Y direction of the arrangement of the first and second antenna structures 20 and 30. Therefore, the arrangement direction is not affected by the mounting area, etc. Even when multiple antenna elements 2 are arranged to form an array antenna structure 40, the spacing of the arranged antenna elements 2 is not restricted by the mounting area of ​​the circuit components, etc., and an array antenna structure 40 in which multiple small antenna elements 2 are arranged close together can be realized.

[0086] Furthermore, when antenna elements are arranged at intervals of half the wavelength of the communication frequency, for example, even in cases requiring high-frequency communication such as 39 GHz, where half the wavelength is a very small value, it is possible to arrange multiple antenna elements at half the wavelength.

[0087] Furthermore, by appropriately combining any of the various embodiments or variations described above, each can achieve its own effect. Additionally, it is possible to combine embodiments with each other, or to combine different embodiments with different examples, and it is also possible to combine features from different embodiments or examples with each other.

[0088] (Postscript) The following technology has been disclosed through the above description of the embodiments.

[0089] (Technology 1) An array antenna structure comprising two or more m antenna structures, including a first antenna structure and a second antenna structure, wherein the first antenna structure and the second antenna structure are respectively configured as follows: an antenna substrate disposed in the XY plane with a length of L in the X direction and a power control substrate disposed in the XZ plane with a length of Q and a thickness of T in the X direction are connected by a connecting member with the X direction as the long side direction and their respective center lines in the X direction being aligned; the connecting member has a bonding electrode on the surface of an insulating resin; the antenna substrate has n patch antenna elements formed at intervals P in the X direction; the first antenna structure and the second antenna structure are disposed in the XY plane... The power control board of the first antenna structure is arranged adjacent to each other in the Y direction. The power control board of the first antenna structure has an L-shaped structure. When viewed from the -Y direction, the L-shaped structure has a notch on the right side relative to the center line in the X direction, cut with a length R in the X direction and a length S in the Z direction. The power control board of the second antenna structure has an L-shaped structure. When viewed from the -Y direction, the L-shaped structure has a notch on the left side relative to the center line in the X direction, cut with a length R in the X direction and a length S in the Z direction. The power control boards of the first antenna structure and the power control board of the second antenna structure are arranged such that each notch is opposite to the XZ region of the adjacent power control board.

[0090] (Technology 2) The array antenna structure according to Technology 1, wherein the patch antenna elements of the first antenna structure and the patch antenna elements of the second antenna structure are arranged at an interval P in the Y direction.

[0091] (Technology 3) The array antenna structure according to Technology 2, wherein the interval P is half of the wavelength of the communication frequency.

[0092] (Technology 4) The array antenna structure according to any one of Technologies 1 to 3, wherein n patch antenna elements are formed symmetrically with respect to the center line in the X direction of the antenna substrate.

[0093] (Technology 5) The array antenna structure according to any one of Technologies 1 to 4, wherein the lengths L and Q satisfy the relational expression L = Q.

[0094] (Technology 6) An array antenna module, in the array antenna structure according to any one of Technologies 1 to 5, on the third XZ region different from the first XZ region of the first power control substrate, electronic components with a height of H or less are mounted, and the relational expression 0 < H < P - T is satisfied.

[0095] (Technology 7) The array antenna module according to Technology 6, wherein on the region of the XZ region that is line-symmetric with respect to the center line in the X direction and the notch portion, electronic components with a height of I or less are mounted, and the relational expression 0 < I < 2P - T is satisfied.

[0096] According to the above-mentioned various technologies, the power control substrates of the first antenna structure and the power control substrates of the second antenna structure are arranged such that each notch portion faces the XZ region of the adjacent power control substrate, and the arrangement of the electronic components mounted on this XZ region is allowed without being obstructed by the adjacent power control substrate. Therefore, it is possible to provide a small-sized array antenna structure and an array antenna module whose size is not restricted by the size or mounting area of the circuit components constituting the signal circuit or the power supply circuit.

[0097] For the array antenna structure and the array antenna module according to the above-mentioned manner of the present disclosure, the power control substrates of the first antenna structure and the power control substrates of the second antenna structure are arranged such that each notch portion faces the XZ region of the adjacent power control substrate, and the arrangement of the electronic components mounted on this XZ region is allowed without being obstructed by the adjacent power control substrate. Therefore, it is possible to provide a small-sized array antenna structure and an array antenna module whose size is not restricted by the size or mounting area of the circuit components constituting the signal circuit or the power supply circuit.

[0098] Industrial Applicability According to the array antenna structure and array antenna module of the present disclosure, a small array antenna structure and array antenna module that are compatible with high-frequency communication can be provided, whose size is not limited by the size or mounting area of ​​the circuit components constituting the signal circuit or power supply circuit.

[0099] Explanation of reference numerals in the attached figures 1 Antenna substrate 2 Patch antenna elements 3 Power control board 4 Connecting components 5. Electrodes for bonding 6. Electrodes for bonding 7. Electrode for bonding 8. First joint 9. Second joint 10 Electronic components 11 Electronic components 20 Antenna Structure 30 Antenna Structure 40 Array Antenna Structure 50 array antenna modules U-shaped symmetrical region V-shaped notch W Middle Area

Claims

1. An array antenna structure body provided with two or more m antenna structure bodies including a first antenna structure body and a second antenna structure body, wherein the first antenna structure body and the second antenna structure body are each configured as an antenna structure body in which an antenna substrate disposed in an XY plane and having a length of L in an X direction and a power supply control substrate disposed in an XZ plane and having a length of Q in the X direction and a thickness of T are connected with their respective center lines in the X direction aligned by a connection member provided with a bonding electrode on a surface of an insulating resin, the antenna substrate having n patch antenna elements formed at intervals of P in the X direction, the first antenna structure body and the second antenna structure body are disposed adjacent to each other in a Y direction of the XY plane, the power supply control substrate of the first antenna structure body is provided with an L-shaped structure having a notch portion cut with a length of R in the X direction and a length of S in a Z direction on a right side with respect to the center line in the X direction when viewed from a -Y direction, the power supply control substrate of the second antenna structure body is provided with an L-shaped structure having a notch portion cut with the length of R in the X direction and the length of S in the Z direction on a left side with respect to the center line in the X direction when viewed from the -Y direction, and the power supply control substrate of the first antenna structure body and the power supply control substrate of the second antenna structure body are disposed with each notch portion facing an XZ region of an adjacent power supply control substrate.

2. The array antenna structure body according to claim 1, wherein the patch antenna elements of the first antenna structure body and the patch antenna elements of the second antenna structure body are disposed at intervals of P in the Y direction.

3. The array antenna structure body according to claim 2, wherein the intervals P are half wavelengths of a communication frequency.

4. The array antenna structure body according to any one of claims 1 to 3, wherein the n patch antenna elements are formed linearly symmetrically with respect to the center line in the X direction of the antenna substrate.

5. The array antenna structure body according to any one of claims 1 to 3, wherein the length L and the length Q satisfy a relationship of L = Q.

6. An array antenna module, wherein in the array antenna structure body according to any one of claims 1 to 3, an electronic component having a height of H or less is mounted on the XZ region of the power supply control substrate, and a relationship of 0 < H < P - T is satisfied.

7. The array antenna module according to claim 6, wherein an electronic component having a height of I or less is mounted on a region on the XZ region that is linearly symmetric with respect to the center line in the X direction and the notch portion, and a relationship of 0 < I < 2P - T is satisfied. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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