WO2023095495A1 - アンテナ装置及び通信装置 - Google Patents
アンテナ装置及び通信装置 Download PDFInfo
- Publication number
- WO2023095495A1 WO2023095495A1 PCT/JP2022/038890 JP2022038890W WO2023095495A1 WO 2023095495 A1 WO2023095495 A1 WO 2023095495A1 JP 2022038890 W JP2022038890 W JP 2022038890W WO 2023095495 A1 WO2023095495 A1 WO 2023095495A1
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- WIPO (PCT)
- Prior art keywords
- substrate
- antenna element
- antenna
- antenna device
- conductor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/32—Vertical arrangement of element
Definitions
- the present invention relates to an antenna device and a communication device.
- Patent Literature 1 describes an example of a V2X antenna device.
- This antenna device has a dipole antenna.
- a dipole antenna is composed of a conductor pattern provided on an antenna substrate.
- the antenna board is erected substantially vertically with respect to a printed circuit board (PCB) by a holder.
- the holder is fixed to the PCB by screws.
- PCB printed circuit board
- an antenna element may be formed by a conductor pattern provided on an antenna substrate.
- the antenna element may be connected to a substrate such as a PCB by hand soldering.
- the antenna element may be formed of a conductor such as sheet metal or a coil.
- the antenna element may be connected to a substrate such as a PCB by hand soldering.
- the quality of the connection between the substrate and the antenna element can be relatively unstable.
- An example of the object of the present invention is to stabilize the quality of connection between the substrate and the antenna element. Other objects of the present invention will become clear from the description herein.
- One aspect of the present invention is a substrate; an antenna element at least partially connected to the substrate by reflow solder; An antenna device comprising
- One aspect of the present invention is the antenna device; an element, at least a portion of which is connected to the substrate, for processing signals transmitted and received by the antenna device;
- a communication device comprising:
- the quality of connection between the substrate and the antenna element can be stabilized.
- FIG. 1 is a perspective view of an antenna device according to Embodiment 1;
- FIG. 1 is a side view of the antenna device according to Embodiment 1;
- FIG. 5 is a graph showing directivity of 5900 MHz and vertically polarized waves of the antenna device according to Embodiment 1.
- FIG. FIG. 3 is a perspective view of an antenna device according to a comparative example;
- 5 is a graph showing the directivity of 5900 MHz and vertically polarized waves of an antenna device according to a comparative example;
- FIG. 8 is a perspective view of an antenna device according to Embodiment 2;
- FIG. 10 is a side view of the antenna device according to Embodiment 2;
- FIG. 11 is a perspective view of an antenna device according to Embodiment 3;
- FIG. 11 is a side view of an antenna device according to Embodiment 3;
- FIG. 11 is a perspective view of an antenna device according to Embodiment 4;
- FIG. 11 is a side view of an antenna device according to Embodiment 4;
- FIG. 11 is a schematic diagram of a portion of a vehicle according to Embodiment 5;
- FIG. 12 is a perspective view of a communication device according to Embodiment 5;
- FIG. 14 is a perspective view of a communication device according to a modification of FIG. 13;
- FIG. 1 is a perspective view of an antenna device 10A according to Embodiment 1.
- FIG. 2 is a side view of the antenna device 10A according to Embodiment 1.
- FIG. 1 is a perspective view of an antenna device 10A according to Embodiment 1.
- FIG. 2 is a side view of the antenna device 10A according to Embodiment 1.
- the arrows indicating the first direction X, the second direction Y, or the third direction Z indicate that the direction from the base end of the arrow to the tip is the positive direction of the direction indicated by the arrow, and the tip of the arrow to the proximal end is the negative direction of the direction indicated by the arrow.
- the white circle with X indicating the second direction Y is the positive direction of the second direction Y from the front to the back of the paper
- the negative direction of the second direction Y is the direction from the back to the front of the paper. It shows that
- the first direction X and the second direction Y are directions parallel to the horizontal direction perpendicular to the vertical direction. Also, the first direction X and the second direction Y are orthogonal to each other.
- the third direction Z is a direction parallel to the vertical direction. Specifically, the positive direction of the third direction Z is a direction from downward to upward in the vertical direction.
- the negative direction of the third direction Z is a direction from above in the vertical direction toward the negative direction.
- the relationship between the first direction X, the second direction Y, the third direction Z, the vertical direction, and the horizontal direction is not limited to the relationship described above.
- the first direction X or the second direction Y may be parallel to the vertical direction.
- the antenna device 10A includes a substrate 100A and an antenna element 200A.
- Antenna element 200A has conductor 210A, flange 220A and projection 230A.
- the board 100A is a printed circuit board (PCB). However, the substrate 100A may be a substrate different from a printed circuit board.
- the substrate 100A has a thickness direction substantially parallel to the third direction Z. As shown in FIG.
- the antenna element 200A is a 5.9 GHz band V2X (Vehicle to Everything) antenna element.
- the frequency band used by the antenna element 200A is not limited to the 5.9 GHz band, and may be a frequency band higher than the 5.9 GHz band, such as the 7 GHz band.
- the antenna element 200A may be an antenna element for applications other than V2X.
- the conductor 210A has a substantially linear shape that stands substantially perpendicular to the substrate 100A.
- conductor 210A is a monopole antenna.
- the frequency band used by the antenna element 200A is a relatively high frequency band
- the length of the conductor 210A in the third direction Z is relatively short.
- the shape of the conductor 210A is not limited to the shape according to the first embodiment, and may be plate-like, for example.
- the conductor 210A may be an antenna other than a monopole antenna.
- conductor 210A may be a dipole antenna.
- the flange 220A is provided at the end of the conductor 210A on the negative direction side in the third direction Z.
- the flange 220A When viewed from the positive direction of the third direction Z, the flange 220A has a substantially annular shape surrounding the entire periphery of the end of the conductor 210A on the negative direction side of the third direction Z. As shown in FIG. However, the shape of the flange 220A is not limited to this example.
- the surface of the flange 220A on the negative side in the third direction Z is substantially parallel to the surface on the positive side in the third direction Z of the substrate 100A.
- the width of the flange 220A in the direction perpendicular to the third direction Z is wider than the width of the conductor 210A in the direction perpendicular to the third direction Z. Therefore, the flange 220A is at least part of a pedestal provided on the side of the antenna element 200A on which the substrate 100A is located. Therefore, compared to the case where the flange 220A is not provided, the conductor 210A can be stably erected substantially vertically with respect to the substrate 100A.
- the flange 220A is at least part of a pedestal that supports the conductor 210A substantially vertically with respect to the substrate 100A.
- a member different from the flange 220A may be at least part of the base.
- a plurality of protrusions extending in a predetermined direction from the conductor 210A when viewed from the positive direction of the third direction Z may be provided.
- the plurality of protrusions form at least part of the base.
- the pedestal may not be provided.
- flange 220A may not be provided.
- the protrusion 230A extends in the negative direction of the third direction Z from the end of the conductor 210A on the negative side of the third direction Z.
- the protrusion 230A is inserted in the third direction Z through a through hole 110A provided in the substrate 100A.
- a portion of the antenna element 200A is inserted in the third direction Z through the through hole 110A. Therefore, compared to the case where the projection 230A is not inserted into the through hole 110A and the end of the conductor 210A on the negative side in the third direction Z is attached to the surface on the positive side in the third direction Z of the substrate 100A. Therefore, the antenna element 200A can be stably attached to the substrate 100A.
- the negative end of the projection 230A in the third direction Z is positioned on the negative side in the third direction Z with respect to the surface of the substrate 100A on the negative side in the third direction Z.
- the end of the projection 230A in the negative direction in the third direction Z may be substantially aligned with the surface of the substrate 100A in the negative direction in the third direction Z.
- the end of the projection 230A in the negative direction in the third direction Z may be positioned on the positive side in the third direction Z with respect to the surface in the negative direction in the third direction Z of the substrate 100A.
- At least part of the antenna element 200A is connected to the substrate 100A by reflow soldering. Specifically, the antenna element 200A is mounted on the substrate 100A by pin-in paste mounting.
- pin-in paste for mounting the antenna element 200A on the substrate 100A An example of pin-in paste for mounting the antenna element 200A on the substrate 100A will be described.
- through holes 110A are formed in the substrate 100A.
- a solder paste is embedded inside the through holes 110A.
- the projection 230A is passed through the through-hole 110A from the surface of the substrate 100A on the positive direction side in the third direction Z.
- the solder paste is heated to a predetermined temperature to melt the solder paste.
- the protrusion 230A is fixed to the through-hole 110A with the solder paste while the conductor 210A stands substantially perpendicular to the substrate 100A.
- the antenna element 200A can be mounted on the substrate 100A by an automatic mounting device. Therefore, it is not necessary to manually solder the antenna element 200A to the substrate 100A. Therefore, the quality of the connection between the substrate 100A and the antenna element 200A can be stabilized as compared with the case where manual soldering is used. Also, the amount of solder used for connecting the substrate 100A and the antenna element 200A can be reduced compared to when manual soldering is used. Furthermore, when it is necessary to mount components on the substrate 100A, the components can be mounted together with the mounting of the antenna element 200A in the same process, so it is possible to reduce the number of processes in mass production.
- a holder for holding the antenna element 200A is not required. Further, screws for fixing the holder to the substrate 100A are also unnecessary. Therefore, the number of assembly steps, the number of parts, and the cost of the antenna device 10A can be reduced compared to the case where the holder and the screws are used.
- the screws for fixing the holder to the substrate 100A may affect the directivity of the antenna element 200A.
- the influence of the screws on the directivity of the antenna element 200A can be suppressed as compared with the case where the screws are used.
- FIG. 3 is a graph showing the directivity of 5900 MHz and vertically polarized waves of the antenna device 10A according to the first embodiment.
- the numbers attached to the outer periphery of the graph indicate the direction (unit: °) in the plane perpendicular to the third direction Z.
- the dashed circles concentrically shown with respect to the center of the graph indicate the sensitivity of the antenna (unit: dBi).
- the white circle with a black dot indicating the third direction Z is the positive direction of the third direction Z from the back of the paper to the front, and the negative direction of the third direction Z is the direction from the front to the back of the paper. It shows that The same applies to FIG. 5, which will be described later.
- the simulation conditions for the antenna device 10A according to Embodiment 1 when calculating the graph shown in FIG. 3 were as follows.
- the substrate 100A is a ground plate extending infinitely in a direction perpendicular to the third direction Z.
- the antenna element 200A was a monopole antenna.
- the conductor 210A was set perpendicular to the substrate 100A.
- the flange 220A is provided at the end of the conductor 210A on the negative direction side in the third direction Z.
- the protrusion 230A was inserted in the third direction Z through the through hole 110A.
- Protrusion 230A was electrically connected to the feed port via a microstripline.
- the microstrip line is provided on the surface of the substrate 100A on the negative side of the third direction Z, and extends in the negative direction of the first direction X from the through hole 110A.
- FIG. 4 is a perspective view of an antenna device 10K according to a comparative example.
- FIG. 5 is a graph showing the directivity of 5900 MHz and vertically polarized waves of the antenna device 10K according to the comparative example. The simulation conditions for the antenna device 10K according to the comparative example when calculating the graph shown in FIG. Same.
- the holder 900K is transparently illustrated for explanation.
- the antenna element 200K is a collinear array antenna. Also, the antenna element 200K according to the comparative example was vertically erected with respect to the substrate 100K by the holder 900K. The holder 900K is fixed to the substrate 100K with a screw 902K provided on the face side of the substrate 100K in the positive direction in the third direction Z. As shown in FIG. The screw 902K was positioned on the positive side of the first direction X of the antenna element 200K.
- the sensitivity at 0° was approximately 11 dBi and the sensitivity at 180° was approximately 7 dBi.
- the sensitivity was about 5 dBi in all directions perpendicular to the third direction Z.
- the antenna device 10A according to Embodiment 1 is almost omnidirectional. This result can be said to be due to the fact that the antenna device 10A according to the first embodiment does not include a holder for supporting the antenna element 200A and a screw for fixing the holder to the substrate 100A.
- the sensitivity at 0° is slightly higher than the sensitivity at 180°. This is because the microstrip line according to the first embodiment extends from the through-hole 110A in the negative direction of the first direction X, and the power supply port according to the first embodiment extends from the through-hole 110A. The reason for this is that they are shifted to the negative direction side of the first direction X.
- the sensitivity of the antenna device 10A according to Embodiment 1 is lower than the sensitivity of the antenna device 10K according to the comparative example.
- the antenna element 200A according to the first embodiment is a monopole antenna
- the antenna element 200K according to the comparative example is a collinear array antenna. That is, the antenna type differs between the antenna element 200A according to the first embodiment and the antenna element 200K according to the comparative example. Therefore, the results shown in FIGS. 3 and 5 do not indicate that the pin-in paste mounting according to Embodiment 1 reduces the directivity of the antenna element.
- FIG. 6 is a perspective view of an antenna device 10B according to Embodiment 2.
- FIG. 7 is a side view of the antenna device 10B according to Embodiment 2.
- FIG. The antenna device 10B according to Embodiment 2 is the same as the antenna device 10A according to Embodiment 1 except for the following points.
- the end of the antenna element 200B on the negative side in the third direction Z is attached to the surface on the positive side in the third direction Z of the substrate 100B.
- the substrate 100B according to the second embodiment is not provided with through holes.
- the antenna element 200B according to the second embodiment does not have a protrusion at the end of the conductor 210B on the negative direction side in the third direction Z.
- the antenna element 200B according to the second embodiment has a flange 220B, like the antenna element 200A according to the first embodiment.
- At least part of the antenna element 200B is connected to the substrate 100B by reflow soldering. Specifically, the antenna element 200B is mounted on the substrate 100B by surface mounting (SMT).
- SMT surface mounting
- solder paste is applied to a portion of the surface of the substrate 100B on the positive direction side in the third direction Z where the antenna element 200B is provided.
- the end of the conductor 210B on the negative side in the third direction Z and the surface of the flange 220B on the negative side in the third direction Z are brought into contact with the solder paste, and the conductor 210B is connected through the solder paste. stand substantially perpendicular to the substrate 100B.
- the solder paste is heated to a predetermined temperature to melt the solder paste.
- the end portion of the conductor 210B on the negative side in the third direction Z and the surface of the flange 220B on the negative side in the third direction Z are aligned. , are fixed to the surface of the substrate 100B on the positive direction side in the third direction Z with solder paste.
- solder paste does not have to be applied to both the end of the conductor 210B on the negative side in the third direction Z and the surface of the flange 220B on the negative side in the third direction Z.
- the solder paste may be provided only on one of the end of the conductor 210B on the negative side in the third direction Z and the surface on the negative side in the third direction Z of the flange 220B.
- the antenna element 200B can be mounted on the substrate 100B by an automatic mounting device. Therefore, as with the pin-in paste according to the first embodiment, the quality of connection between the substrate 100B and the antenna element 200B can be stabilized compared to when manual soldering is used. Also, the amount of solder used to connect the substrate 100B and the antenna element 200B can be reduced compared to when manual soldering is used. Furthermore, when it is necessary to mount components on the substrate 100B, the components can be mounted together with the mounting of the antenna element 200B in the same process, so it is possible to reduce the number of processes in mass production.
- the holder for holding the antenna element 200B and the screw for fixing the holder to the substrate 100B are not required.
- the SMT according to the second embodiment unlike the pin-in paste according to the first embodiment, it is not necessary to provide through holes in the substrate 100B. Therefore, in the SMT according to the second embodiment, the number of man-hours for connecting the antenna element 200B to the substrate 100B can be reduced compared to the pin-in paste according to the first embodiment.
- FIG. 8 is a perspective view of an antenna device 10C according to Embodiment 3.
- FIG. FIG. 9 is a side view of the antenna device 10C according to the third embodiment.
- the antenna device 10C according to Embodiment 3 is the same as the antenna device 10A according to Embodiment 1 except for the following points.
- An antenna element 200C according to the third embodiment has a flange 220C, like the antenna element 200A according to the first embodiment. Further, similarly to the antenna element 200A according to the first embodiment, the antenna element 200C according to the third embodiment has projections 230C inserted through the through holes 110C provided in the substrate 100C. Also, the projection 230C is fixed to the through hole 110C by reflow soldering.
- a cap 240C is provided at the end of the antenna element 200C according to the third embodiment on the positive side in the third direction Z.
- the cap 240C has a structure that is wider than the conductor 210C in the direction perpendicular to the third direction Z.
- the cap 240C is, for example, detachable from the end of the conductor 210C on the positive side in the third direction Z.
- the cap 240C is made of an elastic material such as rubber.
- the cap 240C includes a first wide surface 242C on the positive side in the third direction Z of the cap 240C.
- the first wide surface 242C is substantially parallel to the surface of the substrate 100C on the positive direction side in the third direction Z.
- the width of the first wide surface 242C in the direction perpendicular to the third direction Z is wider than the width of the conductor 210C in the direction perpendicular to the third direction Z.
- the antenna element 200C is mounted on the substrate 100C by pin-in paste mounting.
- the antenna element 200C can be mounted on the positive side of the third direction Z of the substrate 100C by sucking a suction nozzle (not shown) onto the first wide surface 242C. Therefore, compared to the case where the first wide surface 242C is not provided, it is possible to make the antenna element 200C to be easily sucked by the suction nozzle.
- the cap 240C according to the third embodiment is applicable not only to pin-in-paste mounting, but also to SMT described in the second embodiment.
- the antenna element 200C can be more easily sucked by the suction nozzle than when the first wide surface 242C is not provided.
- the third embodiment as compared with the fourth embodiment described later, it is not necessary to provide the antenna element 200C with a special shape such as a structure 240D described later using the fourth embodiment. Therefore, in the third embodiment, it becomes easier to manufacture the antenna element 200C than in the fourth embodiment.
- FIG. 10 is a perspective view of an antenna device 10D according to Embodiment 4.
- FIG. FIG. 11 is a side view of the antenna device 10D according to the fourth embodiment.
- the antenna device 10D according to Embodiment 4 is the same as the antenna device 10A according to Embodiment 1 except for the following points.
- An antenna element 200D according to the fourth embodiment has a flange 220D, like the antenna element 200A according to the first embodiment. Further, similarly to the antenna element 200A according to the first embodiment, the antenna element 200D according to the fourth embodiment has projections 230D inserted through the through holes 110D provided in the substrate 100D. Also, the protrusion 230D is fixed to the through hole 110D by reflow soldering.
- a structure 240D is provided at the end of the antenna element 200D according to the fourth embodiment on the positive direction side in the third direction Z.
- the structure 240D is wider in the third direction Z than the conductor 210D.
- the structure 240D is integrated with, for example, the end of the conductor 210D on the positive direction side in the third direction Z.
- the structure 240D includes a second wide surface 242D on the positive side in the third direction Z of the structure 240D.
- the second wide surface 242D is substantially parallel to the surface of the substrate 100D on the positive direction side in the third direction Z.
- the width of the second wide surface 242D in the direction perpendicular to the third direction Z is wider than the width of the conductor 210D perpendicular to the third direction Z.
- the antenna element 200D can be easily sucked by the suction nozzle in pin-in-paste mounting, SMT mounting, or the like, compared to the case where the second wide surface 242D is not provided. can do.
- the step of attaching the cap to the antenna element 200D is not required as compared with the third embodiment. Therefore, in the fourth embodiment, the number of man-hours for assembling the antenna device 10D can be reduced as compared with the third embodiment.
- FIG. 12 is a schematic diagram of a portion of an automobile 30E according to the fifth embodiment.
- the white circle with a black dot indicating the second direction Y is the positive direction of the second direction Y from the back of the paper to the front, and the negative direction of the second direction Y is the direction from the front to the back of the paper. It shows that
- the positive direction of the first direction X is the front direction of the automobile 30E
- the negative direction of the first direction X is the rearward direction of the automobile 30E
- the positive direction of the second direction Y is the left direction of the vehicle 30E as viewed from the rear of the vehicle 30E
- the negative direction of the second direction Y is the right direction of the vehicle 30E as viewed from the rear of the vehicle 30E.
- the positive direction of the third direction Z is the upward direction of the automobile 30E
- the negative direction of the third direction Z is the downward direction of the automobile 30E.
- the automobile 30E has a housing 32E, a roof 34E and a rear glass 36E.
- the housing 32E accommodates communication devices such as a communication device 20E described later with reference to FIG. 13 and a communication device 20F described later with reference to FIG. Alternatively, the housing 32E may house the antenna device described in the first to fourth embodiments.
- the housing 32E is provided below the mounting area 34aE of the roof 34E.
- the roof 34E is made of metal except for the mounting area 34aE.
- the attachment region 34aE is made of a dielectric such as resin or glass, for example. When the mounting region 34aE is made of dielectric, radio waves transmitted and received by the communication device housed in the housing 32E easily pass through the mounting region 34aE compared to when the mounting region 34aE is made of metal.
- FIG. 13 is a perspective view of a communication device 20E according to the fifth embodiment.
- the communication device 20E according to the fifth embodiment is the same as the antenna device 10A according to the first embodiment except for the following points.
- the communication device 20E includes a substrate 100E, an antenna element 200E and an element 500E.
- a conductor pattern 102E is provided on the entire surface of the substrate 100E on the positive direction side in the third direction Z. At least part of the antenna element 200E and at least part of the element 500E are provided on the positive surface side of the third direction Z of the substrate 100E. Antenna element 200E is electrically connected to element 500E via microstripline 120E.
- the microstrip line 120E is provided, for example, on the negative surface side of the third direction Z of the substrate 100E.
- the element 500E is, for example, a signal processing element such as an integrated circuit (IC).
- the element 500E processes, for example, signals generated by radio waves transmitted and received by the antenna element 200E.
- the element 500E may be an element different from the elements described above.
- antenna element 200E is provided relatively close to element 500E.
- the element 500E is located on the positive side in the first direction X of the antenna element 200E.
- the element 500E shown in FIG. 13 is a schematic diagram. Therefore, the element 500E shown in FIG. 13 is not intended to suggest the actual size or shape of the element 500E.
- the element 500E is connected to the substrate 100E by reflow soldering, for example.
- the step of connecting the antenna element 200E to the substrate 100E by reflow soldering and the step of connecting the element 500E to the substrate 100E by reflow soldering can be performed in the same automatic mounting apparatus. Therefore, the number of man-hours for manufacturing the communication device 20E can be reduced compared to the case where the step of connecting the antenna element 200E to the substrate 100E and the step of connecting the element 500E to the substrate 100E are separate steps.
- the communication device 20E is housed in a housing 32E shown in FIG.
- the communication device 20E may be housed in the housing 32E in the same orientation as that shown in FIG. 13, or may be housed in the housing 32E in a different orientation than that shown in FIG.
- the element 500E is located on the front side of the vehicle from the antenna element 200E.
- the element 500E may be positioned perpendicular to the third direction Z and in a direction different from that shown in FIG. 13 with respect to the antenna element 200E.
- element 500E may be on the rearward, leftward or rightward side of the vehicle relative to antenna element 200E.
- at least a portion of the antenna element 200E and at least a portion of the element 500E may be positioned on the downward side of the vehicle with respect to the substrate 100E.
- FIG. 14 is a perspective view of a communication device 20F according to a modification of FIG. 13.
- FIG. A communication device 20F according to the modification is the same as the communication device 20E according to the fifth embodiment except for the following points.
- a communication device 20F according to the modification includes a substrate 100F, an antenna element 200F and an element 500F.
- the antenna element 200F and the element 500F according to the modification are electrically connected via a microstrip line 120F provided on the substrate 100F.
- the element 500F according to the modification is provided at a position relatively distant from the element 500F.
- the distance in the first direction X between the antenna element 200F and the element 500F in the example shown in FIG. 14 is longer than the distance in the first direction X between the antenna element 200E and the element 500E shown in FIG. there is Moreover, in the example shown in FIG. 14, the conductor pattern 102F is not provided on both sides of the antenna element 200F in the second direction Y. As shown in FIG.
- 11 to 14 illustrate examples in which the communication device including the antenna device is housed in a housing provided under the roof of the automobile.
- the positions where the antenna device and the communication device are installed in the automobile are not limited to this example.
- the antenna device may be housed in an antenna case provided on the top surface of the roof of the automobile.
- the applications of the antenna device and communication device are not limited to automobiles.
- the antenna device and communication device may be mounted on a vending machine, a ticket vending machine, a drone, or the like.
- Aspect 1 is a substrate; an antenna element at least partially connected to the substrate by reflow solder; An antenna device comprising according to aspect 1, there is no need to connect the antenna element to the substrate by hand soldering. Therefore, the quality of the connection between the substrate and the antenna element can be stabilized compared to when manual soldering is used. Also, the amount of solder used to connect the substrate and the antenna element can be reduced compared to when manual soldering is used. Furthermore, when it is necessary to mount components on the board, the components can be mounted together with the mounting of the antenna element in the same process, so it is possible to reduce the number of processes in mass production.
- Aspect 2 is The antenna device according to aspect 1, wherein a part of the antenna element is inserted through a through hole provided in the substrate. According to aspect 2, the antenna element can be stably attached to the substrate, compared to the case where the antenna element is attached to the surface of the substrate without a part of the antenna element being inserted through the through hole.
- Aspect 3 is 3.
- the antenna element can be mounted on the substrate by causing the suction nozzle to be attracted to the structure. Therefore, compared to the case where no structure is provided, it is possible to make it easier for the suction nozzle to suck the antenna element.
- Aspect 4 is 4.
- Aspect 5 is An antenna device according to any one of aspects 1 to 4; an element, at least a portion of which is connected to the substrate, for processing signals transmitted and received by the antenna device;
- a communication device comprising: According to aspect 5, the step of connecting the antenna element to the substrate and the step of connecting the element to the substrate can be performed in the same automatic mounting apparatus. Therefore, the number of man-hours for manufacturing the communication device can be reduced compared to the case where the step of connecting the antenna element to the substrate and the step of connecting the element to the substrate are separate steps.
- Aspect 6 is The antenna device according to any one of modes 1 to 4, wherein the antenna element is attached to the surface of the substrate. According to aspect 6, there is no need to provide through holes in the substrate.
- Aspect 7 is 7.
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Abstract
Description
基板と、
少なくとも一部分がリフローはんだによって前記基板に接続されたアンテナエレメントと、
を備えるアンテナ装置である。
前記アンテナ装置と、
少なくとも一部分が前記基板に接続され、前記アンテナ装置で送受信する信号を処理する素子と、
を備える通信装置である。
図1は、実施形態1に係るアンテナ装置10Aの斜視図である。図2は、実施形態1に係るアンテナ装置10Aの側面図である。
図6は、実施形態2に係るアンテナ装置10Bの斜視図である。図7は、実施形態2に係るアンテナ装置10Bの側面図である。実施形態2に係るアンテナ装置10Bは、以下の点を除いて、実施形態1に係るアンテナ装置10Aと同様である。
図8は、実施形態3に係るアンテナ装置10Cの斜視図である。図9は、実施形態3に係るアンテナ装置10Cの側面図である。実施形態3に係るアンテナ装置10Cは、以下の点を除いて、実施形態1に係るアンテナ装置10Aと同様である。
図10は、実施形態4に係るアンテナ装置10Dの斜視図である。図11は、実施形態4に係るアンテナ装置10Dの側面図である。実施形態4に係るアンテナ装置10Dは、以下の点を除いて、実施形態1に係るアンテナ装置10Aと同様である。
図12は、実施形態5に係る自動車30Eの一部分の模式図である。
(態様1)
態様1は、
基板と、
少なくとも一部分がリフローはんだによって前記基板に接続されたアンテナエレメントと、
を備えるアンテナ装置である。
態様1によれば、アンテナエレメントを基板に手はんだによって接続する必要がない。したがって、手はんだが用いられる場合と比較して、基板とアンテナエレメントとの接続の品質を安定させることができる。また、手はんだが用いられる場合と比較して、基板とアンテナエレメントとの接続に用いられるはんだの量を少なくすることができる。さらに、基板上への部品の実装が必要な場合、同一の工程内でアンテナエレメントの実装とともに部品の実装が行えるため、量産における工程を削減することが可能である。また、態様1によれば、アンテナエレメントを保持するホルダと、当該ホルダを基板に固定するねじと、が不要となる。このため、当該ホルダ及び当該ねじが用いられる場合と比較して、アンテナ装置の組立工数、部品点数及びコストを低減することができる。また、当該ねじが用いられる場合と比較して、ねじによるアンテナエレメントの指向性への影響を抑制することができる。
(態様2)
態様2は、
前記アンテナエレメントの一部分が前記基板に設けられたスルーホールに挿通されている、態様1に記載のアンテナ装置である。
態様2によれば、アンテナエレメントの一部分がスルーホールに挿通されずにアンテナエレメントが基板の表面に取り付けられている場合と比較して、アンテナエレメントを基板に対して安定して取り付けることができる。
(態様3)
態様3は、
前記アンテナエレメントに、前記アンテナエレメントより幅広な構造体が設けられている、態様1又は2に記載のアンテナ装置である。
態様3によれば、吸着ノズルを構造体に吸着させて、アンテナエレメントを基板に実装させることができる。したがって、構造体が設けられていない場合と比較して、吸着ノズルにアンテナエレメントを吸着させやすくすることができる。
(態様4)
態様4は、
前記アンテナエレメントが、前記基板が位置する側に設けられた台座を有する、態様1~3のいずれか一に記載のアンテナ装置である。
態様4によれば、台座が設けられていない場合と比較して、アンテナエレメントを基板に対して安定して立てることができる。
(態様5)
態様5は、
態様1~4のいずれか一に記載のアンテナ装置と、
少なくとも一部分が前記基板に接続され、前記アンテナ装置で送受信する信号を処理する素子と、
を備える通信装置である。
態様5によれば、アンテナエレメントを基板に接続する工程と、素子を基板に接続する工程と、を同じ自動実装装置において実施することができる。したがって、アンテナエレメントを基板に接続する工程と、素子を基板に接続する工程と、が別々の工程となる場合と比較して、通信装置の製造工数を少なくすることができる。
(態様6)
態様6は、
前記アンテナエレメントが前記基板の表面に取り付けられている、態様1~4のいずれか一に記載のアンテナ装置である。
態様6によれば、基板にスルーホールを設ける必要がない。したがって、基板にスルーホールが設けられる場合と比較して、アンテナエレメントを基板に接続する工数を少なくすることができる。
(態様7)
態様7は、
前記アンテナエレメントがV2Xアンテナエレメントである、態様1~4及び6のいずれか一に記載のアンテナ装置である。
態様7によれば、V2Xアンテナエレメントを基板に手はんだによって接続する必要がない。また、V2Xアンテナエレメントを保持するホルダと、当該ホルダを基板に固定するねじと、が不要となる。
Claims (9)
- 基板と、
少なくとも一部分がリフローはんだによって前記基板に接続されたアンテナエレメントと、
を備えるアンテナ装置。 - 前記アンテナエレメントの一部分が前記基板に設けられたスルーホールに挿通されている、請求項1に記載のアンテナ装置。
- 前記アンテナエレメントに、前記アンテナエレメントより幅広な構造体が設けられている、請求項1に記載のアンテナ装置。
- 前記アンテナエレメントに、前記アンテナエレメントより幅広な構造体が設けられている、請求項2に記載のアンテナ装置。
- 前記アンテナエレメントが、前記基板が位置する側に設けられた台座を有する、請求項1に記載のアンテナ装置。
- 前記アンテナエレメントが、前記基板が位置する側に設けられた台座を有する、請求項2に記載のアンテナ装置。
- 前記アンテナエレメントが、前記基板が位置する側に設けられた台座を有する、請求項3に記載のアンテナ装置。
- 前記アンテナエレメントが、前記基板が位置する側に設けられた台座を有する、請求項4に記載のアンテナ装置。
- 請求項1~8のいずれか一項に記載のアンテナ装置と、
少なくとも一部分が前記基板に接続され、前記アンテナ装置で送受信する信号を処理する素子と、
を備える通信装置。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| JP2023563558A JPWO2023095495A1 (ja) | 2021-11-25 | 2022-10-19 | |
| CN202280074983.6A CN118235295A (zh) | 2021-11-25 | 2022-10-19 | 天线装置及通信装置 |
| US18/708,408 US20250030168A1 (en) | 2021-11-25 | 2022-10-19 | Antenna device and communication device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-190811 | 2021-11-25 | ||
| JP2021190811 | 2021-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2022/038890 Ceased WO2023095495A1 (ja) | 2021-11-25 | 2022-10-19 | アンテナ装置及び通信装置 |
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| Country | Link |
|---|---|
| US (1) | US20250030168A1 (ja) |
| JP (1) | JPWO2023095495A1 (ja) |
| CN (1) | CN118235295A (ja) |
| WO (1) | WO2023095495A1 (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006101467A (ja) * | 2004-09-01 | 2006-04-13 | Alps Electric Co Ltd | アンテナ装置 |
| JP2008071997A (ja) * | 2006-09-15 | 2008-03-27 | Furukawa Electric Co Ltd:The | 電子部品実装基板の製造方法 |
| JP2015149409A (ja) * | 2014-02-06 | 2015-08-20 | 富士通コンポーネント株式会社 | 支持部品及び当該支持部品を含むモジュール |
| JP2019134081A (ja) * | 2018-01-31 | 2019-08-08 | 株式会社デンソー | 電子回路 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004228913A (ja) * | 2003-01-22 | 2004-08-12 | Sharp Corp | 携帯端末機器 |
| JP2004304496A (ja) * | 2003-03-31 | 2004-10-28 | Clarion Co Ltd | アンテナ装置 |
-
2022
- 2022-10-19 CN CN202280074983.6A patent/CN118235295A/zh active Pending
- 2022-10-19 WO PCT/JP2022/038890 patent/WO2023095495A1/ja not_active Ceased
- 2022-10-19 US US18/708,408 patent/US20250030168A1/en active Pending
- 2022-10-19 JP JP2023563558A patent/JPWO2023095495A1/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006101467A (ja) * | 2004-09-01 | 2006-04-13 | Alps Electric Co Ltd | アンテナ装置 |
| JP2008071997A (ja) * | 2006-09-15 | 2008-03-27 | Furukawa Electric Co Ltd:The | 電子部品実装基板の製造方法 |
| JP2015149409A (ja) * | 2014-02-06 | 2015-08-20 | 富士通コンポーネント株式会社 | 支持部品及び当該支持部品を含むモジュール |
| JP2019134081A (ja) * | 2018-01-31 | 2019-08-08 | 株式会社デンソー | 電子回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20250030168A1 (en) | 2025-01-23 |
| CN118235295A (zh) | 2024-06-21 |
| JPWO2023095495A1 (ja) | 2023-06-01 |
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