JP2004172764A - Speaker built-in antenna, mount structure for speaker built-in antenna, electronic apparatus, and mount method for speaker built-in antenna - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speaker built-in antenna capable of downsizing an electronic apparatus having an antenna and a speaker while ensuring a volume required for both the antenna and the speaker and maintaining performances of the both, and to provide a mount structure of the speaker built-in antenna, the electronic apparatus, and a mount method of the speaker built-in antenna. <P>SOLUTION: The speaker built-in antenna 10 includes: an antenna board 11 on the front side of which an entire side solid GND face 11a is formed, on the rear side being a signal component face 11b of which a speaker unit 12 is mounted; a main board 15 placed in parallel with the antenna board 11 at a prescribed distance and having an entire side solid GND face 15a, a feeding connector 13 and a GND connector 14 having a prescribed line length and interconnecting the entire side solid GND face 11a of the antenna board 11 with the entire side solid GND face 15a of the main board 15, and the entire side solid GND face 11a of the antenna board 11, the entire side solid GND face 15a of the main board 15 and the GND connector 14 configure an element 20 of the antenna. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a speaker-integrated antenna and a mounting structure of a speaker-integrated antenna that can be used in electronic devices such as a mobile phone, a portable information terminal, a portable audio device, and a portable AV player equipped with a wireless communication function and a sound output function. , An electronic device, and a method of mounting a speaker-integrated antenna.
[0002]
[Prior art]
2. Description of the Related Art In a conventional electronic device having a wireless communication function and a sound output function, both an antenna for transmitting and receiving radio waves for wireless communication and a speaker for sound output are separately mounted.
Patent Document 1 discloses an antenna / loudspeaker device in which an antenna element is mounted on an electrically insulating vibrator.
[0003]
[Patent Document 1]
JP 2001-217633 A (FIG. 1)
[0004]
[Problems to be solved by the invention]
Such a conventional electronic device such as a mobile phone having an antenna and a speaker or a receiver has the following problems.
Since both the speaker and the antenna have a function of outputting radio waves or sound waves to the space, it is necessary to mount them on a specific portion of the device in order to ensure the characteristics. However, in the case of small portable electronic devices, the mounting area is limited in consideration of the display unit, the operation unit, and the place where they are not obstructed by hand. ,was difficult. For this reason, it is necessary to mount the device at the expense of performance or to increase the size of the device.
[0005]
In the speaker that also serves as an antenna described in Patent Literature 1, the vibrating body needs to be insulative because the vibrating body surface of a speaker having a vibrating body having an insulator configuration is used as an antenna substrate. In addition, since the antenna element has a structure that vibrates together with an acoustic signal, in this speaker, the antenna element is mounted on the plane of the diaphragm of the speaker, and radio waves from the antenna element are transmitted and received in both the front and rear directions of the speaker vibration direction. Will be. Therefore, when mounted on a portable small electronic device, even if metal approaches either the front or back of the antenna, the antenna transmission / reception is hindered and the antenna characteristics are degraded. Could not be placed.
[0006]
There is also a problem that a metal net or a protection plate cannot be used to protect the diaphragm. Because metal nets and protective plates cannot be used, they were protected with an insulating protective plate having the same strength as metal, or a strong non-metallic diaphragm was required to eliminate the need for a protective plate. , Costs and size were rising.
[0007]
Furthermore, since the antenna element moves with an acoustic signal, in communication using high frequencies or in wideband communication using high-speed digital signals, the center frequency of the antenna is shifted and the antenna gain is reduced. There has been a concern that such a change may cause fading and interrupt wireless communication.
[0008]
There are also issues of concurrent engineering development. The characteristics of the antenna greatly affect the situation of the main board. Therefore, it is necessary to provide a matching circuit on the main board or change the length of the wiring for feeding the antenna to make adjustment. In concurrent engineering, both the main board and the antenna board were developed in parallel, and the main board was usually harder to change because of its large scale, which sometimes affected the entire device development schedule.
[0009]
The present invention has been made in view of such a problem, and it is possible to reduce the size of a device while maintaining the performance of both a speaker and an antenna while securing the required volume. An object of the present invention is to provide a speaker-integrated antenna, a mounting structure of the speaker-integrated antenna, an electronic device, and a mounting method of the speaker-integrated antenna.
[0010]
In addition, the present invention provides a speaker-integrated antenna, a speaker-integrated antenna mounting structure that can use metal parts to protect the diaphragm and the diaphragm, can ensure reliability and reduce costs, and can also support concurrent engineering. An object of the present invention is to provide a mounting method of an electronic device and a speaker-integrated antenna.
[0011]
[Means for Solving the Problems]
An antenna integrated with a speaker according to the present invention includes an antenna substrate having a flat conductor formed on one surface and a speaker mounted on the other surface, and a flat conductor arranged at a predetermined distance from the antenna substrate. And a connector for electrically connecting the conductor of the antenna board and the conductor of the main board, wherein the conductor of the antenna board, the conductor of the main board and the connector are It is characterized by constituting an element part.
[0012]
The antenna substrate and the main substrate may be arranged parallel or substantially parallel at a predetermined distance.
More preferably, the antenna substrate is a printed circuit board on which a flat conductor is formed on the front surface and electronic components can be mounted on the back surface.
More preferably, the conductor of the antenna board and the conductor of the main board are metal.
[0013]
In a more preferred specific embodiment, the flat conductor of the antenna substrate is formed on the entire surface of the antenna substrate.
More preferably, the connectors are an antenna feed connector and a GND connector.
Further, as a more preferable specific mode, the antenna power supply connector also serves as a speaker power supply connector.
[0014]
Further, an antenna matching circuit may be mounted on the back surface of the antenna substrate or on the main substrate.
Further, a circuit for changing an antenna transmission / reception frequency may be mounted on the back surface of the antenna substrate or on the main substrate.
Further, a speaker amplifier circuit may be mounted on the back surface of the antenna substrate or on the main substrate.
Further, an acoustic vibration element may be mounted on the antenna substrate, and the antenna substrate may vibrate as an acoustic diaphragm.
[0015]
The mounting structure of the speaker-integrated antenna according to the present invention includes an antenna substrate having a flat conductor formed on one surface and a speaker mounted on the other surface, and is disposed in parallel with the antenna substrate at a predetermined distance. A main board having a flat conductor, and a connector for electrically connecting the conductor of the antenna board and the conductor of the main board. The conductor of the antenna board, the conductor of the main board Wherein the body and the connector are a speaker-integrated antenna mounting structure in which the antenna constitutes an element part of the antenna, wherein the speaker and other mounting components are provided only on the rear surface of the antenna substrate and on the side facing the main substrate. It is characterized in that it is mounted to prevent the mounted component from being exposed to the outside.
[0016]
Further, the electronic device of the present invention is an electronic device having an antenna and a speaker, in which a flat conductor is formed on one surface and a speaker is mounted on the other surface, and the antenna substrate is separated from the antenna substrate by a predetermined distance. A main board having a plate-shaped conductor, and a connector for electrically connecting the conductor of the antenna board and the conductor of the main board. The conductor of the antenna board, the main board Wherein the conductor and the connector form a speaker-integrated antenna in which the antenna constitutes an element part of the antenna.
[0017]
Further, in the mounting method of the speaker-integrated antenna according to the present invention, an antenna substrate in which a flat conductor is formed on one surface and a speaker is mounted on the other surface is disposed parallel to the antenna substrate at a predetermined distance. A main board having a flat conductor, and a connector for electrically connecting the conductor of the antenna board and the conductor of the main board. The conductor of the antenna board, the conductor of the main board A method of mounting a speaker-integrated antenna in which a body and the connector constitute an element part of the antenna, wherein the speaker includes a speaker unit having a speaker terminal, and the speaker unit is mounted on a back surface of the printed circuit board. And reflow soldering to be integrated with the antenna substrate.
The flat conductor of the antenna substrate is formed by printing, painting, or pasting a conductive material such as metal.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a speaker-integrated antenna, a mounting structure of a speaker-integrated antenna, an electronic device, and a method of mounting a speaker-integrated antenna according to the present invention will be described in detail with reference to the accompanying drawings.
[0019]
1 to 3 are views showing the configuration of a speaker-integrated antenna according to an embodiment of the present invention. FIG. 1 is a side view, FIG. 2 is an exploded perspective view showing an assembling process, and FIG. FIG. 3 is a perspective view of the antenna substrate. FIG. 4 is a circuit diagram of an electronic device on which the speaker-integrated antenna is mounted, and FIG. 5 is a perspective view showing an appearance of a portable information terminal on which the speaker-integrated antenna is mounted.
This is an example in which the present invention is applied to a portable information terminal such as a PDA (Personal Digital Assistants) as an electronic device on which the speaker-integrated antenna of this embodiment is mounted.
[0020]
First, in FIG. 5, reference numeral 1 denotes a portable information terminal (electronic device), and a portable information terminal 1 main body 1a includes a speaker-integrated antenna 10, guidance for operation and reception information, and information such as images and text information. An LCD display unit 2 to be displayed, a function key for switching functions, deciding an operation, and the like, a keyboard 3 including a cursor key for moving a selection target in up, down, left, and right directions, an alphanumeric key, and the like are provided.
[0021]
The upper part of the main body 1a of the portable information terminal 1 is a speaker / antenna area 4 for accommodating a speaker-integrated antenna, the center part of the main body 1a is a display area 5 having an LCD display section 2 and the like, and the lower part of the main body 1a is an operation having a keyboard 3 and the like. Area 6.
[0022]
Since both the speaker and the antenna have a function of outputting radio waves or sound waves to the space, it is necessary to mount them on a specific portion of the device in order to ensure the characteristics. Also, when using the LCD display unit 2 and the keyboard 3, it is necessary to consider a place that is not blocked by hand. Therefore, in the present embodiment, as shown in FIG. 5, both the speaker and the antenna are provided with the speaker-integrated antenna in the speaker / antenna area 4 in the upper part of the main body 1a away from the display area 5 and the operation area 6. I do. Since the size of the speaker / antenna area 4 greatly affects the overall size of the electronic device 1, it is preferable to reduce the size as much as possible.
[0023]
1 to 3, reference numeral 10 denotes a speaker integrated antenna, 11 denotes an antenna substrate 11 of the speaker integrated antenna 10, and 12 denotes a speaker unit 12 mounted on the antenna substrate 11.
[0024]
The antenna board 11 is connected to a main board 15 via a power supply connector 13 and a GND connector 14 as shown in FIG. As shown in FIG. 1, the front surface (one surface) of the antenna substrate 11 is a solid GND surface 11a (conductor of the antenna substrate), and the back surface (the other surface) is a signal component surface 11b (see FIG. 1). 3).
The main substrate 15 has a three-layer structure having an entire solid GND surface 15a (conductor of the main substrate) in the inner layer as shown in the cross-sectional view of FIG.
[0025]
As described above, the antenna substrate 11 and the main substrate 15 are separated and arranged in parallel, and the entire solid GND surface 11a of the antenna substrate 11 is connected to the main substrate via the power supply connector 13 and the GND connector 14 having a predetermined line length. 15 is connected to the entire solid GND surface 15a of the inner layer. Therefore, as shown in the side view of FIG. 1, the metal conductor portion from the entire solid GND surface 11a of the antenna substrate 11 to the entire solid GND surface 15a of the inner layer of the main substrate 15 via the power supply connector 13 and the GND connector 14 is a plate. The element portion 20 of a metal antenna such as an inverted F antenna or a plate-shaped inverted L antenna is configured. Here, the plate shape indicates that the metal antenna portion of the entire solid GND surface 11a of the antenna substrate 11 or the entire solid GND surface 15a of the main substrate 15 has a plate shape. Indicates that the metal antenna element portion 20 has an inverted F shape or an inverted L shape when viewed from the side.
[0026]
The speaker unit 12 is mounted on the antenna board 11, and is supplied with an audio signal from a main board 15 through a power supply connector 13 and a GND connector 14. As shown in FIG. 3, a speaker sound hole 16 is formed in the antenna substrate 11, and a speaker pad 17 and a chip capacitor 18 are attached to the signal component surface 11b of the antenna substrate 11. A through hole 19 is formed between the signal component surface 11b of the antenna substrate 11 and the entire solid GND surface 11a. The speaker unit 12 is installed so as to face the speaker sound hole 16, and is connected to the speaker pad 17 to be supplied with power. The speaker pad 17 is separated into two parts according to the speaker terminals, one speaker pad 17 is connected to the power supply connector 13, and the other speaker pad 17 is connected to the entire solid GND surface 11 a via the through hole 19. Connected. The above configuration constitutes the power supply separation circuit 17A for supplying the antenna power and the speaker power by one line.
As described above, the speaker unit 12 is mounted on the metal antenna element portion 20 such as the plate-shaped inverted F antenna or the plate-shaped inverted L antenna.
[0027]
In addition, by realizing the antenna element unit 20 with a printed circuit board including the antenna substrate 11 and the main substrate 15, the power supply separation circuit 17A for supplying the antenna power and the speaker power by one line can be mounted. A connector for connecting to the board 15 is mounted. That is, a printed circuit board on which a power supply separation circuit 17A for supplying the antenna power and the speaker power by one line (the power supply connector 13) is used as the metal antenna element portion 20 and is connected to the main substrate 15. The printed circuit board on which the GND connector 14 is mounted is used as the metal antenna element 20.
FIG. 4 shows an example of a circuit of an antenna and a speaker unit of a portable information terminal on which the speaker integrated antenna 10 is mounted.
[0028]
In FIG. 4, the main board 15 includes an RF unit 21, a resonance circuit 22 including inductors L1 and L2 and a capacitor C1, an audio amplifier 23 including an audio power IC for amplifying an audio signal, and capacitors C2 and C3. Is done. The main board 15 is connected to the antenna board 11 through the power supply connector 13 and the GNG connector 14. The antenna substrate 11 is characterized in that the speaker integrated antenna 10 antenna element portion is realized by a printed circuit board as described above, and electrically, an antenna 31 connected via the power supply connector 13 and the capacitor 18; It comprises a power supply connector 13 and a speaker 32 connected between the GNG connector 14.
Hereinafter, the operation of the speaker-integrated antenna 10 configured as described above will be described.
[0029]
First, the operation of the antenna will be described. The high-frequency signal supplied from the power supply connector 13 to the signal component surface 11 b passes through the high-frequency capacitor 18 and is connected to the entire solid GND surface 11 a of the antenna substrate 11 through the through hole 19. Further, a GND signal is routed from the connection point to the vicinity of the power supply connector 13 on the main board side via the GND connector 14 and further via the solid GND 15a on the entire inner layer of the main board, and a potential difference generated in the line length. As a result, an electric field is generated between the antenna substrate 11 and the sub-substrate, and the antenna operates as an antenna that emits electromagnetic waves into space. Also, the reception is the opposite operation, and operates similarly.
[0030]
Next, the speaker operation will be described. The power supply connector 13 is connected to the speaker unit 12, and the opposite terminal of the speaker unit 12 is directly connected to the antenna substrate 11 as GND. Since the audio signal has a sufficiently lower frequency than the high-frequency signal, the audio signal functions as GND regardless of where the audio signal is connected to the entire solid GND surface 11a of the antenna substrate 11, which is the antenna element portion.
Next, assembling of the antenna substrate 11 will be described with reference to the assembly diagram of FIG. 2 and the antenna substrate diagram of FIG.
[0031]
The antenna substrate 11 has a speaker sound hole 16 as shown in FIG. Soldering is performed by printing a solder paste for reflow on a pad, mounting the speaker unit 12 on the signal component surface 11b of the antenna substrate 11 by automatic mounting as shown in FIG. 2, melting the solder by high temperature reflow, and soldering. Is done. At this time, the chip capacitor 18, the power supply connector 13, and the GND connector 14 are simultaneously mounted on the same surface, thereby completing the speaker integrated antenna 10.
[0032]
The main board 15 and the antenna board 11 are mounted on the main board 15 by the power supply connector 13 as shown in FIG.
The operation of the portable information terminal equipped with the speaker integrated antenna 10 will be described.
[0033]
As shown in FIG. 4, signals output from the RF unit 21 and the audio amplifier 23 are combined by capacitors C1, C2, C3 and inductors L1, L2, respectively. Since these signal frequencies are significantly different, they can be simply synthesized by cutting the audio signal with a capacitor and cutting the high-frequency signal with an inductor. However, on the audio side, even if the high-frequency signal is sufficiently cut by the inductor, the high-frequency GND potential is different, so that the high-frequency signal goes around the input / output of the audio amplifier 23. At this time, burst noise occurs due to the timing at which the transmission wave of the RF unit 21 outputs and the output stops, and therefore, before and after the audio amplifier 23, capacitors C2 and C3 for sufficiently obtaining high-frequency GND are required.
[0034]
The high-frequency and audio signals synthesized as described above are fed to the antenna board 11 by the same feed connector 13. The antenna is supplied with power via a capacitor 18. This is necessary so that the low-frequency component of the audio signal does not short-circuit to GND due to antenna feeding. Note that, depending on the speaker, the audio line may affect the antenna. In this case, it is necessary to insert the inductor L3 in series to the speaker line.
[0035]
As described above, the speaker-integrated antenna 10 according to the present embodiment has the antenna substrate 11 in which the solid GND surface 11a is entirely formed on the front surface and the speaker unit 12 is mounted on the signal component surface 11b on the back surface, and the antenna substrate 11 11, a main board 15 having a solid GND surface 15a on the entire surface and having a predetermined line length, and a solid GND surface 11a of the antenna substrate 11 and a solid GND surface 15a of the main substrate 15 having a predetermined line length. Since the power supply connector 13 and the GND connector 14 are connected to each other, the entire solid GND surface 11 a of the antenna substrate 11, the entire solid GND surface 15 a of the main substrate 15 and the GND connector 14 constitute the antenna element portion 20. In an electronic device having a metal antenna and a speaker having a structure separated from the substrate 15, The element portion 20 of the metal antenna such antennas and planar inverted-L antenna can implement a speaker unit 12, while securing the back volume of the speaker, it is possible to secure the antenna volume.
[0036]
To secure the performance of the antenna and the speaker, a certain volume is required for each. The plate-shaped inverted-F antenna operates as an antenna by generating a high-frequency electric field between the antenna and the main board 15 on which the inverted-F antenna is mounted. Accordingly, as the volume of the inverted-F antenna increases due to the area between the main substrate and the antenna, the gain and bandwidth, which are the performance of the antenna, are improved.
[0037]
Furthermore, since the speaker unit 12 is a part of the antenna element and the inverted-F antenna operates as an antenna at the portion of the main board 15 facing the inverted-F antenna, the structure that blocks antenna transmission and reception is a principle. No longer occurs.
Also, regarding the performance of the loudspeaker, if the volume on the back of the loudspeaker is small, the diaphragm cannot vibrate sufficiently, so it is necessary to secure the volume on the back of the diaphragm.
[0038]
Therefore, by using the occupied volume of the inverted-F antenna as both the rear volume of the antenna and the speaker, it is possible to integrate the two while maintaining the required volume of both.
[0039]
In the present embodiment, the antenna element portion 20 of the speaker-integrated antenna 10 is realized by the antenna substrate 11 formed of a printed circuit board, so that a power supply separation circuit for supplying the antenna power and the speaker power by one line is mounted. It is easy to mount a connector for connecting to a main board, mount an antenna matching circuit, mount a circuit for changing an antenna transmission / reception frequency, and mount a speaker amplifier circuit.
[0040]
In addition, mass production becomes possible by using a mounting method in which the speaker unit 12 having speaker terminals compatible with automatic mounting is mounted on the antenna substrate 11 (printed substrate), and soldered and integrated by reflow. Furthermore, since the components mounted on the antenna substrate 11 are mounted on the surface of the antenna substrate 11 facing the main substrate 15 side, these components are not exposed to the outside, so that no useless space is generated.
[0041]
In addition, since a matching circuit and the like can be mounted on the antenna substrate 11, it is possible to proceed with the development of the antenna in parallel with the design and development of the main substrate 15, and it is possible to cope with the final adjustment stage by changing the antenna side. It is.
[0042]
If the antenna element section 20 vibrates but does not interfere with communication, an acoustic vibration element is directly mounted on the antenna element section 20 (for example, the antenna substrate 11), and the antenna element section 20 is acoustically mounted. It can be operated as a diaphragm. Also in this case, it is possible to secure a volume necessary for the antenna and the speaker.
[0043]
As another embodiment, the antenna element portion is not formed of a substrate but made of a metal component for protecting a diaphragm of a speaker, or the speaker unit 12 in FIG. It is also possible to configure 11 as an acoustic diaphragm. Also in this example, by arranging the speaker and the antenna in parallel as in FIG. 1, it is possible to have a structure in which the volume of the antenna and the rear volume of the speaker are shared while the speaker and the antenna are integrally formed.
[0044]
Note that the speaker-integrated antenna according to the above embodiment is an example applied to a portable information terminal such as a PDA, but a mobile phone, a portable audio device, and a portable AV player equipped with a wireless communication function and a sound output function. It goes without saying that the present invention can be applied to various devices such as a wireless transceiver, a video circuit of a TV, and the like.
[0045]
Further, in the above embodiment, the name of the speaker-integrated antenna is used, but this is for convenience of description, and may be, for example, a speaker that also serves as an antenna, an antenna system, an antenna manufacturing method, or the like. It may be incorporated in a unit.
[0046]
Further, the shape of the speaker-integrated antenna may be any shape such as a plate-shaped inverted-F antenna and a plate-shaped inverted-L antenna. The type and number are not limited to the above-described embodiment. The conductor is preferably a metal, but may be another conductive material.
[0047]
【The invention's effect】
As described in detail above, according to the present invention, a speaker-integrated antenna can be realized while maintaining the performance required for both the speaker and the antenna while securing the required volume. The size of a device to which the antenna of the present invention is applied can be reduced.
[0048]
At this time, the antenna element is not vibrated by the acoustic signal because the antenna is fixed, and the high-frequency electric field between the antenna element and the main substrate is different from the conventional technology in which the antenna element is mounted on the diaphragm. As a result, since the antenna operates as an antenna, it is effective as a high-speed digital wireless communication antenna that does not obstruct the transmission and reception of the antenna and requires higher frequency, wider band, and higher efficiency.
[0049]
In addition, metal parts can be used to protect the diaphragm or the diaphragm, or the speaker can be automatically mounted, so that reliability can be ensured and cost can be reduced by mass production.
Furthermore, the development of the main board and the development of the antenna can be separated, and under the situation where today's development speed is required, it is possible to cope with concurrent engineering.
[Brief description of the drawings]
FIG. 1 is a side view showing a configuration of a speaker-integrated antenna according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing an assembling process of the speaker-integrated antenna according to the present embodiment.
FIG. 3 is a perspective view of an antenna substrate of the speaker-integrated antenna according to the present embodiment.
FIG. 4 is a circuit diagram of an electronic device in which the speaker-integrated antenna according to the present embodiment is mounted.
FIG. 5 is a perspective view showing the appearance of a portable information terminal on which the speaker-integrated antenna according to the present embodiment is mounted.
[Explanation of symbols]
1 portable information terminals (electronic devices)
1a Body
2 LCD display
3 keyboard
4 Speaker / antenna area
5 Display area
6 Operation area
10 Speaker integrated antenna
11 Antenna board
12 Speaker unit
13 Power supply connector
14 GND connector
11a Solid GND surface (conductor of antenna board)
11b Signal component side
15 Main board
15a Solid GND surface (conductor of main board)
16 Sound hole for speaker
17 Speaker pad
17A power supply separation circuit
18 Chip capacitors
19 Through Hole
20 Antenna element
21 RF section
22 Resonant circuit
23 Audio Amplifier
31 antenna
32 speakers
L1, L2, L3 inductor
C1, C2, C3 capacitors

Claims (15)

An antenna substrate having a flat conductor formed on one surface and a speaker mounted on the other surface;
A main substrate having a flat conductor, which is disposed at a predetermined distance from the antenna substrate,
A connector for electrically connecting the conductor of the antenna board and the conductor of the main board,
A conductor integrated with a speaker, wherein the conductor of the antenna substrate, the conductor of the main substrate, and the connector constitute an element portion of the antenna. The speaker-integrated antenna according to claim 1, wherein the antenna board and the main board are arranged parallel or substantially parallel at a predetermined distance. The speaker-integrated antenna according to claim 1, wherein the antenna board is a printed board on which a flat conductor is formed on a front surface and an electronic component can be mounted on a back surface. The speaker-integrated antenna according to any one of claims 1 to 3, wherein the conductor of the antenna substrate and the conductor of the main substrate are metal. The speaker-integrated antenna according to any one of claims 1 to 4, wherein the flat conductor of the antenna substrate is formed on the entire surface of the antenna substrate. The speaker-integrated antenna according to claim 1, wherein the connectors are an antenna feed connector and a GND connector. The speaker-integrated antenna according to claim 6, wherein the antenna power supply connector also serves as a speaker power supply connector. The speaker integrated antenna according to claim 1, further comprising an antenna matching circuit mounted on a back surface of the antenna substrate or on the main substrate. The speaker-integrated antenna according to claim 1, further comprising a circuit for changing an antenna transmission / reception frequency mounted on a back surface of the antenna substrate or on the main substrate. 2. The speaker-integrated antenna according to claim 1, further comprising a speaker amplifier circuit mounted on a back surface of the antenna substrate or on the main substrate. 2. The speaker-integrated antenna according to claim 1, further comprising an acoustic vibration element mounted on the antenna substrate, and vibrating the antenna substrate as an acoustic diaphragm. An antenna substrate having a flat conductor formed on one surface and a speaker mounted on the other surface;
A main board having a flat conductor, which is disposed in parallel with the antenna board at a predetermined distance,
A connector for electrically connecting the conductor of the antenna board and the conductor of the main board,
The conductor of the antenna board, the conductor of the main board and the connector is a mounting structure of a speaker integrated antenna constituting an antenna element portion,
The speaker and the other mounted components are mounted on the back surface of the antenna substrate and only on the side facing the main substrate, and the mounted components are prevented from being exposed to the outside. Antenna mounting structure. In an electronic device having an antenna and a speaker,
An antenna substrate having a flat conductor formed on one surface and a speaker mounted on the other surface;
A main substrate having a flat conductor, which is disposed at a predetermined distance from the antenna substrate,
A connector for electrically connecting the conductor of the antenna board and the conductor of the main board,
An electronic device, comprising: a speaker integrated antenna in which the conductor of the antenna substrate, the conductor of the main substrate, and the connector constitute an element portion of the antenna as an antenna and a speaker. An antenna substrate having a flat conductor formed on one surface and a speaker mounted on the other surface;
A main board having a flat conductor, which is disposed in parallel with the antenna board at a predetermined distance,
A connector for electrically connecting the conductor of the antenna board and the conductor of the main board,
A method for mounting a speaker-integrated antenna in which the conductor of the antenna substrate, the conductor of the main substrate, and the connector constitute an element portion of the antenna,
The speaker includes a speaker unit having a speaker terminal,
A method for mounting a speaker-integrated antenna, wherein the speaker unit is mounted on a back surface of the printed board, and is integrated with the antenna board by reflow soldering. The speaker integrated type according to claim 14, wherein the flat conductor of the antenna substrate is formed by printing, painting, or pasting a conductive material such as metal. How to mount the antenna.

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