JP2010081477A - Antenna apparatus and communication device employing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an antenna apparatus and a communication device employing the same in which another member is disposed in a circuit element non-packaged portion 14b on a main substrate 14 by disposing a matching substrate 20 comprising a matching circuit in a carrier 10. <P>SOLUTION: The antenna apparatus is disposed on a main substrate 14 of a communication device. An antenna element 12 is disposed on a surface of a carrier 10 constituted of a dielectric, a matching substrate 20 comprising a matching circuit is disposed in the carrier 10, and conductive leaf springs 18, 18 are provided for electrically connecting the antenna element 12 and the matching substrate 20. Further, a terminal is provided for electrically connecting the matching substrate 20 to the main substrate 14 while the carrier 10 is disposed on the main substrate 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an antenna device disposed on a main board of a communication device such as a mobile phone, and a communication device using the antenna device.

  In a communication device such as a cellular phone, a structure in which an antenna device is disposed on a main board as shown in FIG. 16 is common. FIG. 16 is an external perspective view showing the structure of a communication device using a conventional antenna device. In the structure shown in FIG. 16, an antenna element 12 made of a conductive metal plate or a conductive foil is disposed on the surface of a carrier 10 made of a dielectric. A main substrate insertion recess 10a into which one end portion of the main substrate 14 can be inserted is provided on one side surface of the carrier 10, and one end portion of the main substrate 14 is inserted so that the carrier 10 and the main substrate 14 are integrated. Arranged. On the surface of the main substrate 14, a circuit element mounting portion 14a in which circuit elements constituting a transmission / reception circuit (not shown) are appropriately disposed, and a circuit element in which the circuit elements of the transmission / reception circuit are not disposed near the carrier 10 A non-mounting portion 14b is provided. The circuit element non-mounting portion 14b is provided to prevent the circuit element and the antenna element 12 from being electromagnetically coupled. A transmission path 14c made of a microstrip line is provided on the carrier 10 side from the circuit element mounting portion 14a, and a circuit element for forming the matching circuit 16 is appropriately disposed in the middle. Further, the transmission path 14 c on the carrier 10 side is electrically connected to the antenna element 12 by conductive leaf springs 18 and 18. In FIG. 16, 30 is a connector terminal for inspection.

In the prior art having such a structure, the signal received by the antenna element 12 can be received by the receiving circuit of the main board 14 with the highest gain or the like, and the signal from the transmission circuit of the main board 14 is received by the antenna element. The circuit configuration of the matching circuit 16 and the constants of the circuit elements are set so as to be radiated most efficiently from the circuit 12. An example of a technique in which the matching circuit 16 is disposed on the main board 14 as in the above-described conventional technique is disclosed in Japanese Patent Application Laid-Open No. 2006-295876.
JP 2006-295876 A

  In the conventional structure shown in FIG. 16, the matching circuit 16 is disposed in the circuit element non-mounting portion 14b of the main board 14, and an area for mounting the matching circuit 16 is required. In recent years, especially in mobile phones and the like, there has been a strong demand for further miniaturization, and it is desired to use a portion on which the matching circuit 16 is mounted for disposing other members. In the matching circuit 16, circuit elements constituting the circuit are electrically connected to the transmission line 14c and the like by soldering and fixed. Therefore, at the stage of designing the communication device, the constants of the circuit elements of the matching circuit 16 are sequentially changed to obtain the optimum constants experimentally. However, since the circuit element is soldered, the change is complicated, and it takes a lot of time to find the optimum value.

  Therefore, the present invention has been made in view of the circumstances as described above, and by disposing a matching substrate provided with a matching circuit on a carrier, other members are disposed on the circuit element non-mounting portion of the main substrate. An object of the present invention is to provide an antenna device and a communication device using the antenna device.

  In order to achieve such an object, an antenna device of the present invention is an antenna device disposed on a main board of a communication device, wherein an antenna element is disposed on a surface of a carrier made of a dielectric, and a matching circuit is provided. The matching substrate is disposed on the carrier, a connection mechanism is provided for electrically connecting the antenna element and the matching substrate, and the matching substrate is disposed on the main substrate while the carrier is disposed on the main substrate. A matching board connecting mechanism for electrical connection is provided.

  The antenna device is disposed on a main board of a communication device, wherein an antenna element is provided on a surface of a carrier made of a dielectric, and a concave circuit is provided on a side surface of the carrier to provide a matching circuit as a matching board storage part. In the state where the provided matching substrate can be stored and taken out, and in the state where the matching substrate is stored, a connection mechanism is provided for electrically connecting the antenna element and the matching substrate, and the carrier is disposed on the main substrate. The matching board may be provided with matching board connection terminals for electrically connecting the matching board to the main board.

  An antenna device disposed on a main board of a communication device, wherein an antenna element is disposed on a surface of a carrier made of a dielectric, and a concave portion extending from one side surface to a lower surface of the carrier is provided to provide a matching board storage unit A matching board provided with a matching circuit is freely housed and removed from the opening on the one side surface, and in a state in which the matching board is housed, a connection mechanism for electrically connecting the antenna element and the matching board is provided, and A matching substrate connecting terminal for electrically connecting the matching substrate to the main substrate may be provided on the matching substrate in a state where the carrier is disposed on the main substrate.

  Then, as the connection mechanism for electrically connecting the antenna element and the matching substrate, a conductive leaf spring is provided, and the antenna element and the matching substrate are electrically connected via the leaf spring, and the matching substrate Can be arranged so as to be elastically biased toward the main board on which the antenna device is arranged.

  Further, the concave portion as the matching substrate storage portion has an opening in the longitudinal direction of the matching substrate, and the matching substrate is elastically elastic toward the main substrate side at both ends in the longitudinal direction of the opening of the matching substrate storage portion. It is also possible to provide an elastic resin member to be urged.

  Further, the matching board connection terminal for electrically connecting the matching board to the main board may be configured to protrude from the surface of the matching board on the main board side.

  In the communication device of the present invention, the antenna device according to any one of claims 1 to 6 is arranged on a main board on which a transmission / reception circuit is mounted.

  In the antenna device according to claim 1, since the matching board provided with the matching circuit is provided on the carrier, other members are provided on the circuit element non-mounting portion of the main board provided with the conventional matching circuit. Therefore, it is suitable for downsizing.

  In any of the antenna devices according to claims 2 and 3, a matching substrate provided with a matching circuit as a matching substrate storage portion can be stored and taken out by providing a concave portion on the side surface of the carrier or from one side surface to the lower surface. Therefore, other members can be arranged on the circuit board non-mounting portion of the main board on which the matching circuit is conventionally provided, which is suitable for downsizing. Moreover, the arrangement of the matching substrate is easy.

  In the antenna device according to the fourth aspect, since the antenna element and the matching substrate are electrically connected via the conductive leaf spring, reliable electrical connection can be obtained.

  In the antenna device according to claim 5, since the elastic resin member that elastically biases the matching substrate toward the main substrate side is disposed on both ends in the longitudinal direction of the opening of the matching substrate storage portion, the matching substrate is stabilized. Thus, it can be elastically biased toward the main board side. In addition, the elastic resin member can prevent the plate spring from being excessively deformed to cause plastic deformation, and can absorb vibrations of the matching substrate and the like.

  In the antenna device according to claim 6, since the matching board connection terminal for electrically connecting the matching board to the main board is configured to protrude from the surface of the matching board on the main board side, the matching is performed by a leaf spring or the like. When the board is elastically biased toward the main board, the matching board connection terminal comes into contact with the main board, and a reliable electrical connection is obtained.

  In the communication device according to the fourteenth aspect, since the antenna device according to any one of the first to sixth aspects is disposed on the main board on which the transmission / reception circuit is mounted, another circuit element is not mounted on the circuit board on the main board. It is possible to reduce the size by arranging members.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an external perspective view showing the structure of a first embodiment of communication equipment using the antenna device of the present invention. FIG. 2 is an exploded perspective view of a communication device using the antenna device of the present invention. FIG. 3 is a diagram illustrating an appearance of the matching substrate. FIG. 4 is a perspective view of a main part in which the matching substrate is removed from the antenna device of the present invention. FIG. 5 is a diagram for explaining insertion of the main board into the main board insertion recess provided in the carrier. 1 to 5, the same or equivalent members as those in FIG.

  1 to 5, an antenna element 12 made of a conductive metal plate or a conductive foil is disposed on the surface of a carrier 10 made of a dielectric. A main substrate insertion recess 10a into which one end portion of the main substrate 14 can be inserted is provided on one side surface of the carrier 10, and one end portion of the main substrate 14 is inserted so that the carrier 10 and the main substrate 14 are integrated. Arranged. On the surface of the main substrate 14, a circuit element mounting portion 14a in which circuit elements constituting a transmission / reception circuit (not shown) are appropriately disposed, and a circuit element in which the circuit elements of the transmission / reception circuit are not disposed near the carrier 10 A non-mounting portion 14b is provided. A transmission path 14c made of a microstrip line is provided on the carrier 10 side from the circuit element mounting portion 14a. In the middle of the transmission line 14c, the matching circuit 16 as in the conventional example is not formed.

  The matching circuit is formed as a chip in a flat, substantially rectangular parallelepiped shape as the matching substrate 20. This is one in which circuit elements are appropriately incorporated in a laminated substrate, and is formed by, for example, LTCC (Low Temperature Co-fired Ceramics). The upper surface of the matching substrate 20 is provided with two terminals 20a and 20a for electrical connection with the antenna element 12, and the lower surface is provided with three terminals 20b for electrical connection with the main substrate 14. , 20b, 20b are provided. Moreover, the terminals 20b, 20b, 20b on the lower surface as the matching substrate connection terminals are formed so as to protrude by a slight dimension d from the lower surface of the matching substrate 20.

  Further, the carrier 10 is provided with a recess on the side surface where the main substrate insertion recess 10a is provided so as to overlap the main substrate insertion recess 10a, so that the matching substrate 20 can be stored and taken out as the matching substrate storage portion 10b. Is done. Further, in the state where the matching substrate 20 is stored in the matching substrate storage portion 10b, the conductive leaf springs 18 and 18 for electrically connecting the antenna element 12 and the terminals 20a and 20a on the upper surface of the matching substrate 20 are antennas. It is integrated with the element 12 and provided on the carrier 10 side. A connection mechanism is formed by the leaf springs 18 and 18 and the terminals 20 a and 20 a on the surface of the matching substrate 20. The matching substrate 20 is elastically biased downward by the elasticity of the leaf springs 18 and 18. Further, engagement concave portions 20c and 20c are provided on both sides of the matching substrate 20, and engage with the engagement concave portions 20c and 20c of the matching substrate 20 inserted in the matching substrate storage portion 10b of the carrier 10. In this way, locking claws 10c and 10c are provided as engaging portions. Moreover, the matching substrate 20 is configured to be slightly movable in the vertical direction within a certain range with the engaging claws 10c, 10c engaged with the engaging recesses 20c, 20c.

  In this configuration, first, the matching substrate 20 is inserted into the matching substrate storage portion 10 b of the carrier 10, and the main substrate 14 is inserted into the main substrate insertion recess 10 a of the carrier 10. Then, as shown in FIG. 5, with the insertion of the main board 14, the matching board 20 moves upward in the matching board housing part 10b by a slight dimension p against the elasticity of the leaf springs 18, 18. Then, the terminals 20b, 20b, and 20b as the matching board connection terminals protruding from the lower surface of the matching board 20 are elastically contacted with the front end side of the transmission path 14c as the main board connection terminal of the main board 14, thereby ensuring reliable. Electrical connection is made. A matching substrate connecting mechanism is formed by the terminals 20b, 20b, 20b and the tip of the transmission line 14c. Of course, the terminals 20a and 20a on the upper surface of the matching substrate 20 are reliably electrically connected to the antenna element 12 via the leaf springs 18 and 18, respectively. The structure in which the matching substrate 20 is slightly moved upward by insertion of the main substrate 14 may be any structure such as providing a slope with a slightly lower opening on the bottom surface of the main substrate insertion recess 10a.

  In the antenna device of the first embodiment and the communication equipment used therefor, the matching substrate 20 provided with the matching circuit is disposed on the carrier 10, so that the circuit elements of the main substrate 14 provided with the conventional matching circuit are not provided. Other members can be disposed on the mounting portion 14b, which is suitable for downsizing. Since the matching substrate 20 can be stored and taken out in the matching substrate storage portion 10b provided on the side surface of the carrier 10, soldering work is not required and the matching substrate 20 can be easily arranged. Furthermore, by preparing in advance various types of matching substrates 20 having different constants of circuit elements of the matching circuit, various types of matching substrates 20 can be easily stored and taken out and replaced without soldering at the design stage of the communication device. The optimal constant can be found in a short working time.

  Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 6 is an external perspective view of a second embodiment of the antenna apparatus of the present invention. In FIG. 6, the same or equivalent members as those in FIGS. 1 to 5 and FIG. The structure shown in FIG. 6 is a state in which the main board is not disposed in the antenna device of the second embodiment of the present invention.

  In FIG. 6, the difference from the first embodiment is that conductive plate springs 18, 18 are provided in the matching substrate storage portion 10 b provided on the side surface of the carrier 10. The elastic resin members 22 and 22 are provided on both ends in the longitudinal direction of the opening of the matching substrate storage portion 10b so as to elastically urge the main substrate 14 in the same direction. In the second embodiment having such a structure, the elastic resin members 22 and 22 do not cause extreme elastic deformation like the plate springs 18 and 18, and the plate springs 18 and 18 are extremely deformed to cause plastic deformation. It can be prevented from occurring. Further, the positions of the leaf springs 18 and 18 cannot be freely set so as to contact the terminals 20 a and 20 a on the upper surface of the matching substrate 20. Therefore, the matching substrate 20 cannot always be elastically biased downward by the leaf springs 18 and 18 alone. Therefore, by providing the elastic resin members 22 and 22 on both ends, respectively, the matching substrate 20 can be elastically biased downward uniformly, and vibrations of the matching substrate 20 in the matching substrate storage portion 10b can be absorbed. Can do.

  FIG. 7 is an external perspective view of another structure of the terminals of the matching substrate. In the structure shown in FIG. 7, conductive leaf springs 24, 24 are directly connected and fixed to terminals 20 a, 20 a on the upper surface of the matching substrate 20. Alternatively, instead of the terminals 20a and 20a on the upper surface, conductive leaf springs 24 and 24 are directly provided on the matching substrate 20. Naturally, the leaf springs 18 and 18 provided on the carrier 10 shown in FIG. 1 and the like of the first embodiment are not provided. As described above, the leaf springs 18, 18, 24, and 24 that electrically connect the antenna element 12 and the matching substrate 20 may be disposed on either the carrier 10 side or the matching substrate 20 side.

  FIG. 8 is an external perspective view of still another structure of the terminals of the matching substrate. In the structure shown in FIG. 8, conductive matching board springs 26, 26, and 26 are directly connected and fixed to terminals 20b, 20b, and 20b on the lower surface of the matching board 20. . Alternatively, instead of the terminals 20b, 20b, 20b on the lower surface, conductive leaf springs 26, 26, 26 are provided directly on the matching substrate 20. The matching substrate connection leaf springs 26, 26 and 26 as the matching substrate connection mechanism are not limited to those provided on the matching substrate 20 side as shown in FIG. 8, but may be provided on the main substrate 14 side.

  FIG. 9 is an external perspective view of another structure for arranging circuit elements on the matching substrate. In the structure shown in FIG. 9, all circuit elements 20 d, 20 d... Are arranged on the upper surface of the matching substrate 20. It can be configured without using a laminated substrate.

  FIG. 10 is an external perspective view of still another structure for arranging circuit elements on the matching substrate. In the structure shown in FIG. 10, a part of the circuit elements 20d, 20d... Is arranged on the upper surface of the matching substrate 20, and the other circuit elements are arranged in the matching substrate 20 as in the embodiment shown in FIG. It is disposed in the laminated substrate. Even if it exists in the matching board | substrate 20 shown in any of FIG.3 and FIG.9 and FIG.10, a matching circuit is made into a chip | tip, Comprising: By enabling it to attach and detach easily to the carrier 10 suitably, The exchange is easy.

  Furthermore, a third embodiment of the present invention will be described with reference to FIG. FIG. 11 is an external perspective view of a communication device using the third embodiment of the antenna device of the present invention. 11, the same or equivalent members as in FIGS. 1 to 5 and FIG.

  In FIG. 11, the difference from the first embodiment is that the matching substrate storage portion 10b is provided on the side surface of the carrier 10, but the main substrate insertion recess 10a is not provided. Therefore, the carrier 10 is mounted on the surface of the main board 14, and the screws 32, 32 penetrating the carrier 14 and the main board 10 from above in FIG. The carrier 10 and the main board 14 are fastened and fixed to the case 34 by screwing. In FIG. 11, the matching substrate 20 is shown inserted into the matching substrate storage portion 10 b of the carrier 10. However, after the carrier 14 and the main substrate 10 are fixed to the case 34, the matching substrate 20 is shown. Of course, 20 may be inserted. In addition, a screw that penetrates the case 34 and the main board 10 of the communication device from below is screwed into a female screw engraved on the carrier so that the case 34, the main board 14 and the carrier 10 are fastened together. May be.

  Further, a fourth embodiment of the present invention will be described with reference to FIG. FIG. 12 is an external perspective view of a communication device using the fourth embodiment of the antenna device of the present invention. 12, the same or equivalent members as in FIGS. 1 to 5 and FIGS. 11 and 16 are denoted by the same reference numerals, and redundant description is omitted.

  12 differs from the third embodiment shown in FIG. 11 in the structure for fixing the carrier 10 and the main board 14 to the case 34 of the communication device. In the structure shown in FIG. 12, fixing engagement recesses 10d and 10d are provided on the surfaces on both ends of the carrier 10, respectively, and the fixing engagement recesses 14d, 14d is provided, and the case 34 is provided with fixing engaging claws 34b and 34b projecting so as to be able to engage with the fixing engaging recesses 10d, 10d, 14d and 14d. The main board 14 is mounted on the case 34, the carrier 10 is further mounted, and the fixing claw portions 34b and 34b are elastically deformed and engaged with each other, so that the carrier 10 and the main board 14 can be easily engaged with the case 34. Can be fixed.

  A modification of the fourth embodiment of the present invention will be described with reference to FIG. FIG. 13 is an external perspective view of a communication device using a modification of the fourth embodiment of the antenna device of the present invention. In FIG. 13, the same or equivalent members as those in FIGS. 1 to 5 and FIGS. 11, 12, and 16 are denoted by the same reference numerals, and redundant description is omitted.

  In FIG. 13, the difference from the fourth embodiment shown in FIG. 12 is the structure in which the fixing claws 10e, 10e are provided on the carrier 10. In the structure shown in FIG. 13, fixing engagement claws 10e and 10e are provided on both ends of the carrier 10, respectively, and fixing engagement recesses 14d and 14d are formed on the edge of the main board 14 at positions corresponding thereto. Also, the case 34 is provided with fixing engaging recesses 34c and 34c so that the fixing engaging claws 10e and 10e of the carrier 10 can be engaged. The main board 14 is mounted on the case 34, the carrier 10 is further mounted, the fixing engaging claws 10e and 10e of the carrier 10 are elastically deformed, and the fixing engaging recesses 34c and 34c of the case 34 are engaged. By combining, the carrier 10 and the main board 14 can be easily fixed to the case 34.

  Furthermore, a fifth embodiment of the present invention will be described with reference to FIG. FIG. 14 is an external perspective view of the fifth embodiment of the antenna apparatus of the present invention. In FIG. 14, the same or equivalent members as in FIGS. 1 to 5 and FIGS. 11 to 13 and FIG.

  In FIG. 14, the difference from the first embodiment is that the matching substrate storage portion 10b is provided on the side surface of the carrier 10, but the main substrate insertion recess 10a is not provided. Therefore, the carrier 10 is mounted and fixed on the surface of the main board 14. In the structure, fixing engagement claw portions 10e and 10e are provided on both ends of the carrier 10, respectively, and fixing engagement recesses 14d and 14d are provided on the edge of the main board 14 at positions corresponding to the protrusions. . The carrier 10 and the main board 14 can be easily fixed by mounting the carrier 10 on the main board 14 and elastically deforming the engaging claws 10e and 10e for fixing.

  A modification of the fifth embodiment of the present invention will be described with reference to FIG. FIG. 15 is an external perspective view of a modification of the fifth embodiment of the antenna apparatus of the present invention. 15, the same or equivalent members as those in FIGS. 1 to 5 and FIGS. 11 to 14 and FIG.

  15 is different from the fifth embodiment shown in FIG. 14 in that fixing engagement recesses 10d and 10d are provided on the surfaces on both ends of the carrier 10, respectively, and the main board 14 at a position corresponding to this is provided. Fixing engaging claws 14e and 14e are provided at the edge. The fixing engaging claws 14e and 14e of the main board 14 may be formed of an elastic metal plate or an elastic resin and provided on the main board 14 by appropriate means such as soldering or screwing. Then, the carrier 10 is mounted on the main substrate 14, the fixing engaging claws 14e and 14e are elastically deformed, and are engaged with the fixing engaging recesses 10d and 10d of the carrier 10, so that the carrier can be easily obtained. 10 and the main board 14 can be fixed.

  In the above-described embodiment, the matching substrate storage portion 10b is provided on the side surface of the carrier 10 so that the matching substrate 20 can be stored and taken out. However, the present invention is not limited to this. The matching substrate 20 may be arranged as described above. Further, the engaging portion for preventing the matching substrate 20 inserted into the matching substrate storage portion 10b from coming out is not limited to the locking claws 10c and 10c as shown in FIG. 4, and any structure can be used as long as it can be prevented from coming out. May be. In the structure shown in FIG. 11, a pair of cases 34, 34 are provided for holding the carrier 10 and the main board 14 from above and below, and screws 32, 32, etc. are provided from the case 34 on one side to the carrier 10 and the main board 14. You may comprise so that the board | substrate 14 may be penetrated and it may fix together with the case 34 of the other side. Further, in the structure shown in FIGS. 12 to 14, the fixing engaging claws 10 e and 34 b are formed integrally with the carrier 10 or the case 34, respectively, but are not limited thereto, and are formed as separate parts. The fixing claw portions 10e and 34b for fixing may be appropriately disposed and fixed to the carrier 10 or the case 34, respectively. In the structure shown in FIGS. 14 and 15, the fixing engagement claws 10e and 14e and the fixing engagement recesses 10d and 10e are not used, but are fastened and fixed by screws or the like penetrating the carrier 10 and the main board 14. Alternatively, a screw that penetrates the main board 14 may be screwed into a female screw engraved in the carrier 10 to be fastened and fixed.

It is an external appearance perspective view which shows the structure of 1st Example of the communication apparatus using the antenna device of this invention. It is a disassembled perspective view of the communication apparatus using the antenna apparatus of this invention. It is a figure which shows the external appearance of a matching board | substrate. It is the perspective view of the principal part which removed the matching board | substrate from the antenna apparatus of this invention. It is a figure explaining insertion of a main board | substrate in the main board | substrate insertion recessed part provided in the carrier. It is an external appearance perspective view of 2nd Example of the antenna apparatus of this invention. It is an external appearance perspective view of the other structure of the terminal of a matching board | substrate. It is an external appearance perspective view of the further another structure of the terminal of a matching board | substrate. It is an external appearance perspective view of the other structure of arrangement | positioning of the circuit element of a matching board | substrate. It is an external appearance perspective view of other structure of arrangement | positioning of the circuit element of a matching board | substrate. It is an external appearance perspective view of the communication apparatus using 3rd Example of the antenna apparatus of this invention. It is an external appearance perspective view of the communication apparatus using 4th Example of the antenna apparatus of this invention. It is an external appearance perspective view of the communication apparatus using the modification of 4th Example of the antenna apparatus of this invention. It is an external appearance perspective view of 5th Example of the antenna device of this invention. It is an external appearance perspective view of the modification of 5th Example of the antenna apparatus of this invention. It is an external appearance perspective view which shows the structure of the communication apparatus using the conventional antenna device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Carrier 10a Main board insertion recessed part 10b Matching board storage part 10c Locking claw 10d, 14d, 34c Fixing engagement recessed part 10e, 14e, 34b Fixing engagement claw part 12 Antenna element 14 Main board 14a Circuit element mounting part 14b Circuit Element non-mounting portion 14c Transmission path 16 Matching circuit 18, 24, 26 Leaf spring 20 Matching substrate 20a, 20b Terminal 20c Engaging recess 22 Elastic resin member 30 Connector terminal 32 Screw 34 Case 34a Female screw

Claims (22)

An antenna device disposed on a main substrate of a communication device, wherein an antenna element is disposed on a surface of a carrier made of a dielectric, a matching substrate provided with a matching circuit is disposed on the carrier, and the antenna element A connection mechanism for electrically connecting the matching substrate is provided, and a matching substrate connection mechanism for electrically connecting the matching substrate to the main substrate is provided in a state where the carrier is disposed on the main substrate. A feature antenna device. An antenna device provided on a main board of a communication device, wherein an antenna element is provided on a surface of a carrier made of a dielectric, a concave circuit is provided on a side surface of the carrier, and a matching circuit is provided as a matching board storage part In a state where the matching substrate can be stored and taken out, and in the state where the matching substrate is stored, a connection mechanism for electrically connecting the antenna element and the matching substrate is provided, and the carrier is disposed on the main substrate, An antenna device comprising: a matching board connecting terminal for electrically connecting a matching board to the main board. An antenna device provided on a main board of a communication device, wherein an antenna element is provided on a surface of a carrier made of a dielectric, and a concave portion extending from one side surface to a lower surface of the carrier is provided as a matching board storage unit. A matching board provided with a circuit can be stored and taken out from the opening on the one side surface, and a connection mechanism is provided for electrically connecting the antenna element and the matching board in a state where the matching board is stored. An antenna device comprising: a matching board connecting terminal for electrically connecting the matching board to the main board in a state of being arranged on the main board. 4. The antenna device according to claim 2, wherein a conductive leaf spring is provided as the connection mechanism for electrically connecting the antenna element and the matching substrate, and the antenna element and the matching substrate are interposed via the leaf spring. An antenna device characterized in that the matching substrate is arranged to be electrically connected and elastically biased toward the main substrate on which the antenna device is disposed. 5. The antenna device according to claim 4, wherein the concave portion as the matching substrate housing portion has an opening in a longitudinal direction of the matching substrate, and the matching substrate is disposed at both ends in the longitudinal direction of the opening of the matching substrate housing portion. An antenna device comprising: an elastic resin member that elastically urges the main substrate toward the main board. 6. The antenna device according to claim 4, wherein the matching board connecting terminal for electrically connecting the matching board to the main board is configured to protrude from a surface of the matching board on the main board side. An antenna device. 2. The antenna device according to claim 1, wherein as a matching board connecting mechanism for electrically connecting the matching board to the main board, a conductive matching board connecting leaf spring is provided on either the matching board or the main board. An antenna device characterized by being provided. 6. The antenna device according to claim 4, wherein the leaf spring for electrically connecting the antenna element and the matching board is disposed on either the carrier or the matching board. Antenna device. 7. The antenna device according to claim 4, wherein the matching substrate is configured to be movable within a predetermined range in the direction of approaching and separating from the main substrate within the matching substrate storage unit. apparatus. 7. The antenna device according to claim 1, wherein the matching substrate is formed of a multilayer substrate, and circuit elements for forming a matching circuit are disposed in the multilayer substrate. . 7. The antenna device according to claim 1, wherein the matching substrate is formed of a multilayer substrate, a part of circuit elements forming a matching circuit is disposed in the multilayer substrate, and the other circuit elements are disposed in the multilayer substrate. An antenna device characterized by being mounted on the surface of a multilayer substrate. 7. The antenna device according to claim 1, wherein a circuit element for forming a matching circuit is mounted on the surface of the matching substrate. 4. The antenna device according to claim 2, wherein the matching substrate storage portion is provided with an engagement portion that engages with the matching substrate in a state in which the matching substrate is stored and restricts the withdrawal. Antenna device to do. A communication device comprising the antenna device according to any one of claims 1 to 6 disposed on a main board on which a transmission / reception circuit is mounted. In a communication device in which the antenna device according to claim 2 is disposed on a main board on which a transmission / reception circuit is mounted, a main board insertion recess into which one end of the main board can be inserted is provided in the carrier of the antenna device, A communication device comprising: a matching board connection terminal of the matching board electrically connected to a main board connection terminal provided on a surface of the main board when the main board is inserted. A communication device comprising the antenna device according to any one of claims 4 to 6 disposed on a main substrate on which a transmission / reception circuit is mounted, wherein the matching substrate is provided on a main substrate connection terminal provided on a surface of the main substrate. A communication device characterized in that the matching board connection terminal is elastically connected to be electrically connected. In a communication device in which the antenna device according to claim 3 is disposed on a main board on which a transmission / reception circuit is mounted, the antenna device is provided on a surface of the main board by being placed on the surface of the main board. A communication device characterized in that a matching substrate connection terminal of the matching substrate is electrically connected to a main substrate connection terminal. 18. The communication device according to claim 17, wherein the carrier and the main board of the antenna device are configured to be fastened and fixed to a case of the communication device with screws. 18. The communication device according to claim 17, wherein a fixing engagement recess is provided in each of the carrier and the main substrate of the antenna device, and the case of the communication device is engaged with the fixing engagement recess. An antenna device comprising: a claw portion configured to fix the carrier and the main board to a case of the communication device with the fixing engagement claw portion. 18. The communication device according to claim 17, wherein a fixing engagement recess is provided in each of the main board and the communication device, and the carrier of the antenna device is engaged with the fixing engagement recess. An antenna device comprising: a claw portion configured to fix the carrier and the main board to a case of the communication device with the fixing engagement claw portion. 4. The antenna device according to claim 3, wherein a fixing engagement recess is provided on the main board, a fixing engagement claw is provided on the carrier to be engaged with the fixing engagement recess, and the fixing engagement claw is provided. The antenna device is configured to fix the main substrate to the carrier. 4. The antenna device according to claim 3, wherein a fixing engagement recess is provided in the carrier, a fixing engagement claw is provided on the main substrate to engage with the fixing engagement recess, and the fixing engagement claw is provided. The antenna device is configured to fix the main substrate to the carrier.