JP4930851B2 - Antenna structure and portable communication device - Google Patents

Description

  The present invention relates to an antenna structure in which a communication antenna and a television antenna are built in a case, and a portable communication device including the antenna structure.

Some portable communication terminals have an antenna built in the end of the case (see Patent Documents 1 and 2). In some cases, antennas are provided at one end and the other end in the case (see Patent Document 3).
As described above, as disclosed in Patent Documents 1 and 2, a built-in antenna is provided as a communication antenna that has a clean appearance and is less likely to be damaged. As shown in Patent Document 1, the built-in antenna is usually located on the end side of the case.
That is, if the built-in antenna is provided in the middle of the case, the communication performance is lowered away from the outside. Therefore, the built-in antenna is provided on the end side of the case so as not to reduce the communication performance as much as possible. As described above, a plurality of antennas are provided at one end and the other end in the case.
JP 2007-13700 A JP 2006-41840 A JP 2005-286632 A

By the way, recently, the number of portable electronic devices that receive television is increasing. However, if there is an obstacle between the base station and the base station, reception is possible even if an antenna is provided at the end of the case. In general, it is necessary to provide an antenna that is pulled out.
Further, even in communication for a call, if the radio wave is weak, it is out of service area.
Therefore, it is anxious that television reception and communication can be reliably performed using a built-in antenna that has a clean appearance and is less likely to be damaged.

  The subject of this invention is providing the antenna structure which can perform television reception and communication reliably using a built-in antenna.

In order to solve the above problems, the invention described in claim 1 is a case, a communication antenna built in one end of the case, and a television built in the other end of the case. An antenna, an auxiliary communication antenna built in a position away from the television antenna by a predetermined distance from the television antenna, and when the sensitivity of the communication antenna decreases, the communication antenna reduces the auxiliary communication antenna. And an antenna structure including a control unit for switching a data transmission / reception function .

  Invention of Claim 2 is the antenna structure of Claim 1, Comprising: The said television antenna is provided on a board | substrate, The terminal on the said board | substrate connected with the said television antenna, and this terminal are connected. And a metal plate provided on one end side of the case together with the television antenna.

The invention according to claim 3 is a case, a communication antenna built in one end of the case, a TV antenna built in the other end of the case, and the TV antenna. An auxiliary communication antenna built in and provided at a predetermined distance away from the case, the TV antenna is provided on the board, and the terminal on the board connected to the TV antenna; A metal plate connected to the terminal and provided on the one end side of the case together with the television antenna, and the case includes a first case and a second case, and the first case and the second case further comprising a hinge for freely opening is relatively moved from the closed clamshell state, in the position corresponding to the hinge, the longitudinal provided along the hinge And wherein the antenna structure in which the said metal plate Levi antenna and vertically.

  A fourth aspect of the present invention is the antenna structure according to the third aspect, wherein the communication antenna and the auxiliary communication antenna are vertically long, and are provided at a position substantially parallel to the television antenna. The communication antenna and the auxiliary communication antenna receive horizontal polarization, and communicate with each other by vertical polarization.

The invention according to claim 5 is a case, a communication antenna built in one end of the case, a television antenna built in the other end of the case, and the television antenna. An auxiliary communication antenna built in and provided at a predetermined distance away from the case, the TV antenna is provided on the board, and the terminal on the board connected to the TV antenna; A metal plate connected to the terminal and provided on the one end side of the case together with the television antenna, wherein the metal plate has an U-shaped antenna structure .

The invention according to claim 6 is a case, a communication antenna built in one end of the case, a television antenna built in the other end of the case, and the television antenna. An auxiliary communication antenna built in and provided at a predetermined distance away from the case, the TV antenna is provided on the board, and the terminal on the board connected to the TV antenna; A metal plate connected to the terminal and provided on the one end side of the case together with the television antenna, the metal plate connected to the terminal, and a lead-out derived from the connection portion The antenna structure is characterized in that the lead-out portion is narrower than the connection portion.

  The invention according to claim 7 is the antenna structure according to any one of claims 2 to 6, wherein the antenna structure is provided at a position where the television antenna and the metal plate are laminated.

The invention according to claim 8 is a case, a communication antenna built in one end of the case, a television antenna built in the other end of the case, and the television antenna. Auxiliary communication antenna provided in the case at a predetermined distance away from the case, and other communication provided in the case at a predetermined distance away from the auxiliary communication antenna in the case. And an antenna structure including the antenna .

  The invention according to claim 9 is the antenna structure according to claim 8, wherein the auxiliary communication antenna and the other communication antenna are provided so as not to approach a predetermined amount or more in a plane. .

  A tenth aspect of the present invention is characterized by a portable communication device including the antenna structure according to any one of the first to ninth aspects.

  According to the present invention, television reception and communication can be reliably performed using a built-in antenna that has a clean appearance and is less likely to be damaged.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a state in which a mobile phone is opened in the vertical direction as a configuration of an embodiment of a mobile communication device to which the present invention is applied. 1 is a first casing (first case), and 2 is a second case. The housing (second case) 3 is a biaxial hinge.

  The first casing is a display section casing 1 having a display section 1a by a display screen, and the second casing is an operation section casing 2 having an operation section 2a by various operation keys. These display section casings 1 and the operation part housing | casing 2 are couple | bonded through the biaxial hinge 3 so that opening and closing (folding) is possible. The biaxial hinge 3 can rotate the display unit casing 1 with respect to the operation unit casing 2 in a state where the display unit casing 1 and the operation unit casing 2 are opened.

  That is, in the illustrated example, the biaxial hinge 3 is opened and closed (not shown) between a pair of left and right hinge bosses 5 provided at one end of the operation unit housing 2 with a hinge cover 4 provided at one end of the display unit housing 1. The display unit housing 1 and the operation unit housing 2 are configured to be foldable by being coupled via a shaft (first hinge shaft). Then, one end of the display unit housing 1 and the hinge cover 4 are coupled via a rotation shaft (second hinge shaft) (not shown), so that the display unit housing is connected to the operation unit housing 2 via the hinge cover 4. The body 1 is configured to be rotatable.

FIG. 1 shows a state in which the display unit housing 1 and the operation unit housing 2 are opened around the opening / closing axis of the biaxial hinge 3. The display unit housing 1 and the operation unit housing 2 are folded by being closed with respect to each other about the opening / closing axis.
Further, in a state where the display unit housing 1 and the operation unit housing 2 are opened, the display unit housing 1 is rotated around the rotation axis of the biaxial hinge 3 with respect to the operation unit housing 2, and then the open / close shaft As shown in FIG. 2, the display style is folded with the display unit 1a as a table.

  3 to 5 show the arrangement of antenna components built in the operation unit housing 2. The operation unit housing 2 includes an upper case 6 and a lower case 7, and includes a circuit board 8, a battery 9, A television antenna 11, terminal pins 12, a metal plate 13, a communication antenna 21, a communication auxiliary antenna 22, a Felica antenna (another communication antenna) 31, a substrate 32, and the like are accommodated.

  That is, in the upper case 6, the circuit board 8 is installed in almost one half on the hinge boss 5 side, and the battery 9 is detachable on the other half side and is covered with the battery lid 10.

A television antenna 11 using a vertically long chip antenna is mounted along the end of the circuit board 8 on the hinge boss 5 side. This television antenna 11 is for one-segment broadcasting (one-segment partial reception service for mobile phones and mobile terminals) compatible with terrestrial digital broadcasting (digital terrestrial television broadcasting), and is connected to a television receiving circuit on the circuit board 8.
Further, the circuit board 8 is provided with a metallic terminal pin 12 so as to be adjacent to one end of the television antenna 11. The terminal pin 12 is electrically connected to the television antenna 11, and a metal plate 13 is mounted on the terminal pin 12.

  This metal plate 13 is an auxiliary element that lengthens the conduction path of the TV antenna 11 by the chip antenna. As shown in the figure, the connection portion soldered onto the terminal pin 12 becomes a U-shaped cross section, and further the conduction path is provided. It is long. The lead-out portion led out from the connection portion so as to be laminated along the TV antenna 11 is made thinner than the connection portion with the terminal pin 12 to be longer than the TV antenna 11 and further lengthen the conduction path. Yes. The reason why the metal plate 13 is made thinner than the connection portion is to prevent mutual buffering away from the television antenna 11.

  A vertically long communication antenna 21 is disposed along the end of the upper case 6 opposite to the hinge boss 5. The communication antenna 21 is for transmission / reception for data communication of a cellular phone, and is connected to a communication circuit on the circuit board 8 via a lead wire (not shown).

Further, the auxiliary communication antenna 22 is mounted on the circuit board 8 at a position away from the television antenna 11 by a predetermined distance toward the inside of the upper case 6. This auxiliary communication antenna 22 is used for auxiliary transmission / reception for data communication of a cellular phone. When the sensitivity of the communication antenna 21 is lowered, the communication auxiliary antenna 22 is switched to the communication antenna 21 under the control of the communication circuit (control unit) .

  Further, on the various electronic components mounted on the circuit board 8, the Felica antenna 31 and the board 32, which are other communication antennas, are arranged at a predetermined distance from the auxiliary communication antenna 22 toward the inside of the upper case 6. Has been. This Felica antenna 31 is used for non-contact data communication, and is formed by cables surrounding various electronic components on the circuit board 8 as shown in the figure. Both ends of the Felica antenna 31 by this cable are connected to a substrate 32, and a communication circuit is mounted on the substrate 32. The board 32 is connected to the circuit board 8 via a flexible board or the like (not shown).

In the various built-in antennas described above, the TV antenna 11 receives horizontally polarized waves that are radio waves of a one-segment TV, the communication antenna 21 transmits and receives vertically polarized waves that are radio waves of a mobile phone, and the auxiliary communication antenna 22 is radio waves of the mobile phone. The vertically polarized wave is received.
The auxiliary communication antenna 22 and the Felica antenna 31 are provided so as not to approach a predetermined amount or more in plan as shown in the figure. Thereby, each communication function is ensured. That is, since the Felica antenna 31 is provided at a position that is a predetermined distance away from the auxiliary communication antenna 22 and does not approach the predetermined amount or more in plan view, the Felica antenna 31 is disposed at the best place that does not affect the auxiliary communication antenna 22.

  FIG. 6 shows the upper case 6 viewed from the upper surface side, and the upper case 6 is insert-molded with a metal plate, specifically, a stainless steel plate 61 as the resin case becomes thinner. The stainless steel plate 61 is made of sheet metal by press working, and covers and reinforces the opening corresponding to the operation portion 2a by various operation keys of the resin case. The stainless steel plate 61 has a pair of left and right projecting portions 62 on one end side in the longitudinal direction. In addition, a rising portion 63 is provided at the tip of the protruding portion 62. The rising portion 63 is formed at the tip of the protruding portion 62 via a bent portion by press working.

  The above-described rising portion 63 of the stainless steel plate 61 is inserted into the hinge boss 5 of the resin case. Thereby, the strength improvement of the upper case 6 and the hinge boss 5 which have the hinge boss 5 integrally is realizable. Here, between the pair of left and right projecting portions 62 having the rising portion 63 at the tip is an antenna region in which the above-mentioned terrestrial digital TV antenna 11 for terrestrial digital broadcasting is arranged.

As described above, according to the antenna structure of the embodiment, the television antenna 11 is built in the operation case housing 2 of the folding cellular phone at the end portions on the hinge boss 5 side of the upper case 6 and the lower case 7. The television antenna 11 can be placed in the best place that is not affected by other electronic components.
Therefore, in the view style state shown in FIG. 2, the entire operation unit housing 2 and display unit housing 1 in which the television antenna 11 by the chip antenna and the metal plate 13 that lengthens the conduction path are incorporated at one end are provided as one segment. It will be able to receive the horizontally polarized wave that is the radio wave of the TV.

And since the communication antenna 21 is built in the edge part on the opposite side to the hinge boss 5 of the upper case 6 and the lower case 7, the communication antenna 21 can be arrange | positioned in the best place which is not influenced by the other electronic components incorporated.
Furthermore, since the auxiliary communication antenna 22 is arranged at a predetermined distance away from the TV antenna 11 in the upper case 6 and the lower case 7, the best place is not affected by the TV antenna 11 and other electronic components. The auxiliary communication antenna 22 can be arranged in
Therefore, in the portable style state shown in FIG. 1, the operation unit housing 2 and the display unit housing each including the communication antenna 21 at the other end and the communication auxiliary antenna 22 inside the case from the TV antenna 11. As a whole, the vertically polarized wave which is the radio wave of the mobile phone can be transmitted and received satisfactorily.

  As described above, in a mobile phone, television reception and communication can be reliably performed using a built-in antenna that has a clean appearance and is less likely to be damaged.

(Modification)
In the above embodiment, the biaxial hinge is used, but it may be a folding hinge, a slide-type mobile phone, a mobile phone in which the display unit and the operation unit are integrated, and the operation unit. An antenna component may be built in the display unit housing instead of the housing.
In the embodiment, the cellular phone is used. However, the present invention is not limited to this, and a portable electronic device having a communication function (antenna) such as a camera, a PDA, a notebook computer, a wearable computer, a calculator, and an electronic dictionary. Can be used for all equipment.
The TV antenna includes a TV antenna that performs two-way communication.
Furthermore, the shape of the case and various antennas are arbitrary, and it is needless to say that other detailed structures can be appropriately changed.

1 is a perspective view showing a configuration of an embodiment of a mobile communication device to which the present invention is applied, showing a state in which a mobile phone is opened in a vertical direction. FIG. 2 is a perspective view showing a horizontal placement state of the view style of the mobile phone of FIG. 1. It is the perspective view which showed the antenna component arrangement | positioning of the antenna built-in case of the mobile telephone of FIG. Similarly, it is a vertical side view of a case with a built-in antenna. Similarly, it is an exploded perspective view of an antenna built-in case and antenna parts. It is a disassembled perspective view of the resin case and metal plate which comprise the insert molding case of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st case 2 2nd case 3 Hinge 4 Hinge cover 5 Hinge boss 6 Upper case 7 Lower case 8 Circuit board 9 Battery 11 Television antenna 12 Terminal pin 13 Metal plate 21 Communication antenna 22 Communication auxiliary antenna 31 Other communication antenna 32 Board

Claims (10)

Case and
A communication antenna built in one end of the case;
A television antenna built in the other end of the case;
For this television antenna, an auxiliary communication antenna provided inside the case at a predetermined distance away from the case,
And a control unit that switches a data transmission / reception function from the communication antenna to the auxiliary communication antenna when sensitivity of the communication antenna decreases . The television antenna is provided on a substrate,
A terminal on the substrate connected to the television antenna;
The antenna structure according to claim 1, further comprising: a metal plate connected to the terminal and provided on the one end side of the case together with the television antenna. Case and
A communication antenna built in one end of the case;
A television antenna built in the other end of the case;
An auxiliary communication antenna provided in a built-in position away from the television antenna by a predetermined distance toward the case, and
The television antenna is provided on a substrate,
A terminal on the substrate connected to the television antenna;
A metal plate connected to the terminal and provided on the one end side of the case together with the television antenna;
The case comprises a first case and a second case,
The first case and the second case are further provided with a hinge that can be opened by being relatively moved from the closed two-fold state,
In the position corresponding to the hinge, features and to luer antenna structure in that a said metal plate of the TV antenna and a vertically long portrait provided along the hinge. The communication antenna and the auxiliary communication antenna are vertically long and provided at a position substantially parallel to the television antenna,
The television antenna receives horizontally polarized waves;
The antenna structure according to claim 3, wherein the communication antenna and the auxiliary communication antenna communicate with each other by vertical polarization. Case and
A communication antenna built in one end of the case;
A television antenna built in the other end of the case;
An auxiliary communication antenna provided in a built-in position away from the television antenna by a predetermined distance toward the case, and
The television antenna is provided on a substrate,
A terminal on the substrate connected to the television antenna;
A metal plate connected to the terminal and provided on the one end side of the case together with the television antenna;
Features and to luer antenna structure that the metal plate is a shaped cross section co. Case and
A communication antenna built in one end of the case;
A television antenna built in the other end of the case;
An auxiliary communication antenna provided in a built-in position away from the television antenna by a predetermined distance toward the case, and
The television antenna is provided on a substrate,
A terminal on the substrate connected to the television antenna;
A metal plate connected to the terminal and provided on the one end side of the case together with the television antenna;
The metal plate is composed of a connection part connected to the terminal and a lead-out part derived from the connection part,
Features and to luer antenna structure that from the derived partial narrow the connecting portion.   The antenna structure according to claim 2, wherein the antenna structure is provided at a position where the television antenna and the metal plate are laminated. Case and
A communication antenna built in one end of the case;
A television antenna built in the other end of the case;
For this television antenna, an auxiliary communication antenna provided inside the case at a predetermined distance away from the case,
The relative auxiliary communication antenna, characteristics and to luer antenna structure that comprises, and other communication antenna provided on-chip at a predetermined distance toward the inside the case.   The antenna structure according to claim 8, wherein the auxiliary communication antenna and the other communication antenna are provided so as not to approach each other by a predetermined amount or more in a plane.   A portable communication device comprising the antenna structure according to any one of claims 1 to 9.

Images