JP2012074830A - Terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal device which reduces limitations on the position and the form for arranging an antenna element.SOLUTION: A terminal device includes a first circuit board 41 disposed in the interior of an operation part side housing 2, a holding member 42 provided on the first circuit board 41 and made of a conductive member, an antenna element 43 held by the holding member 42, and an electric supply part 44 provided on the first circuit board 41. In a portable phone device 1, the antenna element 43 formed by a sheet plate is held by the holding member 42 to be fixed.

Description

  The present invention relates to a terminal device that has an antenna element and communicates with an external device.

  In terminal devices, the number of built-in antenna types is increasing. In such a terminal device, for example, the antenna element is fixed inside the rear mold, the power feeding part formed on the circuit board is connected to a part of the antenna element, and the reference potential formed on the circuit board is used. A method of forming a so-called inverted-F antenna by connecting a portion and another part of the antenna element has been devised (see, for example, Patent Document 1).

JP-A-11-177327

  By the way, since such a terminal device has a configuration in which the antenna element is fixed to the rear mold, the position and shape of the antenna element are restricted.

  An object of the present invention is to provide a terminal device that can reduce restrictions on the location of an antenna element and the shape of the antenna element.

  In order to solve the above-described problem, a terminal device according to the present invention is provided with a casing, a first circuit board disposed inside the casing, and a first conductive board provided on the first circuit board. A sandwiching member; an antenna element sandwiched between the first sandwiching member and electrically connected to the first sandwiching member; and a power feeding unit provided on the first circuit board, wherein the first sandwiching member includes: It is electrically connected to the power feeding unit.

  In the terminal device, a reference potential portion is formed on the first circuit board, and a second holding member is disposed at a predetermined interval from the first holding member. The member may be electrically connected to the reference potential portion.

  Further, in the terminal device, the antenna element has a planar shape, and tips of one end and the other end are opposed to each other on the same axis at a predetermined interval, and the one end is centered on the same axis. The part and the other end part may be arranged so as to intersect at a predetermined angle.

  The terminal device includes a second circuit board disposed inside the housing and different from the first circuit board, and a third clamping member provided on the second circuit board. The substrate may be disposed at a position facing the first circuit substrate, and the antenna element may be sandwiched between the first sandwiching member and the third sandwiching member.

  In the terminal device, the antenna element has a planar shape, and ends of one end and the other end are opposed to each other on the same axis at a predetermined interval, and the one end is centered on the same axis. It may be clamped by the first clamping member and the third clamping member such that the portion and the other end intersect at a predetermined angle.

  Further, the terminal device includes a third circuit board different from the first circuit board, and the casing is connected to the first casing and the first casing connected by a connecting portion so as to be in an open state and a closed state. The first circuit board is arranged inside the first casing, and the third circuit board is formed with a reference potential portion and arranged inside the second casing. The antenna element held by the first holding member provided on the first circuit board does not contact the reference potential portion formed on the third circuit board in the open state, You may comprise so that the said reference potential part currently formed in the said 3rd circuit board may be in the said closed state.

  Further, the terminal device includes a third circuit board different from the first circuit board, and the casing is connected to the first casing and the first casing connected by a connecting portion so as to be in an open state and a closed state. The first circuit board is arranged inside the first casing, and the third circuit board is formed with a reference potential portion and arranged inside the second casing. The antenna element held by the first holding member provided on the first circuit board is in contact with the reference potential portion formed on the third circuit board; The position in contact with the reference potential portion in the antenna element may be different between the open state and the closed state.

  Further, the terminal device includes a third circuit board different from the first circuit board, and the casing is connected to the first casing and the first casing connected by a connecting portion so as to be in an open state and a closed state. The first circuit board is arranged inside the first casing, and the third circuit board is formed with a reference potential portion and arranged inside the second casing. The antenna element is slidably held by the first holding member provided on the first circuit board, and one end of the antenna element is formed on the third circuit board. When the first casing and the second casing are transitioned between an open state and a closed state by the connecting section and are connected to a reference potential section, the antenna element slides along with the transition And the antenna element is clamped by the first clamping member. There may be changes.

  ADVANTAGE OF THE INVENTION According to this invention, the restrictions with respect to the place which arrange | positions an antenna element and the shape of an antenna element can be reduced.

The external appearance perspective view when the mobile telephone apparatus which concerns on this invention is a slide down state (closed state) is shown. The external appearance perspective view when the mobile telephone apparatus which concerns on this invention is a slide-up state (open state) is shown. It is a figure which shows the 1st structure of the mobile telephone apparatus which concerns on this invention. It is a figure where it uses for description about the structure which improves the stability of an antenna element. It is a figure where it uses for description about the shape of an antenna element. It is a figure where it uses for description about the shape of an antenna element. It is a figure which shows the 2nd structure of the mobile telephone apparatus which concerns on this invention. It is a figure which shows the 3rd structure of the mobile telephone apparatus which concerns on this invention. It is a figure which shows the 4th structure of the mobile telephone apparatus which concerns on this invention. It is a figure which shows the 5th structure of the mobile telephone apparatus which concerns on this invention. It is a figure which shows the 6th structure of the mobile telephone apparatus which concerns on this invention. It is a figure which shows the 7th structure of the mobile telephone apparatus which concerns on this invention. It is a figure which shows the 8th structure of the mobile telephone apparatus which concerns on this invention.

  Embodiments of the present invention will be described below. 1 and 2 are external perspective views of a mobile phone device 1 which is an example of a terminal device according to the present invention. In the present embodiment, the cellular phone device 1 will be described. However, the present invention is not limited to the cellular phone device. For example, PHS (Personal Handyphone System), PDA (Personal Digital Assistant), portable navigation. It may be a device, a notebook computer, or the like.

  The cellular phone device 1 is configured to include an operation unit side body 2 (first housing) and a display unit side body 3 (second housing). The operation unit side body unit 2 includes an operation key group 11 and a microphone 12 to which a voice uttered by a user of the mobile phone device 1 is input on the surface unit 10. The operation key group 11 includes input operation buttons for inputting numbers such as telephone numbers and characters such as mail.

  The display unit side body unit 3 also has a display 21 for displaying various types of information on the surface unit 20, a voice output unit 22 for outputting the voice of the other party on the call, and determination and scrolling in various operations. It is comprised from the determination operation button 23 to perform.

  Note that the mobile phone device 1 is configured by other components in addition to those described above. Other components are, for example, an imaging unit configured with a CCD (Charge Coupled Device) camera or a CMOS (Complementary Metal Oxide Semiconductor) camera that captures an image of a subject, a speaker that outputs music or the like to the outside, and the like.

  Moreover, the upper end part of the operation part side housing | casing part 2 and the lower end part of the display part side housing | casing part 3 are connected via the connection part which has a slide mechanism. Therefore, the cellular phone device 1 is configured such that the operation unit side body 2 and the display unit side body 3 overlap each other, and the display unit side body 3 covers the upper surface of the operation unit side body 2 (slide). (Refer to FIG. 1), and the display unit side body 3 is slid in the longitudinal direction with respect to the operation unit side body 2 to operate the side. It is possible to freely transition to a state where the covered portion (operation key group 11 and microphone 12) of the housing portion 2 is exposed (slide-up state, hereinafter referred to as an open state) (see FIG. 2). reference.).

  1 and 2 show the form of the slide-type mobile phone device, but the form of the mobile phone device according to the present invention is not particularly limited to this. For example, it can be realized by a foldable type. Is possible.

  The cellular phone device 1 according to the present embodiment is configured to be able to reduce restrictions on the location where the antenna element is arranged and the shape of the antenna element, as compared with the related art. A specific configuration will be described below.

  As shown in FIG. 3A, the mobile phone device 1 is provided on a first circuit board 41 disposed on a housing (for example, the operation unit side housing unit 2), and the first circuit board 41. And a holding member 42 made of a conductive material, an antenna element 43 held by the holding member 42, and a power feeding unit 44 provided on the first circuit board 41. The clamping member 42 is electrically connected to the power feeding unit 44.

  The clamping member 42 is disposed on the RF signal line A to which the signal processing unit 41b and the matching circuit unit 41a are connected, and a pad on which a metal clip can be mounted is provided on the first circuit board 41. It is configured by mounting a clip-shaped sheet metal on top. In the cellular phone device 1, the antenna element 43 made of sheet metal is sandwiched and fixed by a sandwiching member 42.

  Further, as shown in FIG. 3B, the first circuit board 41 includes a matching circuit unit 41a that performs impedance matching, a signal processing unit 41b that performs predetermined signal processing, and the like. ing.

  At the time of transmission, the cellular telephone device 1 impedance-matches the signal processed by the signal processing unit 41b by the matching circuit unit 41a, and transmits a signal having a predetermined frequency via the power feeding unit 44, the holding member 42, and the antenna element 43 to the base station. Send to.

  Further, at the time of reception, the cellular phone device 1 receives a radio wave by the antenna element 43, converts it into a high frequency signal, and supplies the signal to the signal processing unit 41b via the holding member 42, the power feeding unit 44 and the matching circuit unit 41a.

  Further, since the cellular phone device 1 has a structure in which the antenna element 43 is simply sandwiched between the clamping members 42 without being fixed to the mold resin as in the conventional type, the structure can be made simpler than that in the conventional type. Thus, the cost can be reduced, and the number of steps for incorporating the antenna element 43 can be reduced.

  Further, the configuration around the antenna element 43 can be freely configured without departing from the gist of the present invention. For example, as shown in FIG. A configuration in which a plurality of members 42 are arranged may be used.

  FIG. 4 shows a configuration example in which two clamping members, that is, a clamping member (hereinafter referred to as a power feeding clamping member) 42a and a clamping member (hereinafter referred to as a fixing clamping member) 42b are arranged. The power supply clamping member 42 a is connected to the power supply unit 44, and the fixing pinching member 42 b is not connected to the GND (reference potential unit) or the like on the first circuit board 41, and is configured independently. Yes.

  According to such a configuration, the cellular phone device 1 can stably hold the antenna element 43 with the plurality of holding members without deteriorating the performance as a monopole antenna.

  Further, in order to further ensure the stability of the antenna, the cellular phone device 1 further includes the first circuit board 41 so as to reinforce the antenna element 43 when the first circuit board 41 is arranged and assembled inside the housing. The rib which is standingly arranged in the case which accommodates the antenna element 43 may be contacted.

  In addition, as shown in FIGS. 5A and 5B, the cellular phone device 1 shifts the power feeding clamping member 42 a and the fixing clamping member 42 b on a plane (that is, the first circuit board 41 of the first circuit board 41). By arranging the feeding member 42a and the fixing member 42b so as to intersect at a predetermined angle in a plan view, it is possible to provide a bent surface (so-called C surface) in the shape of the antenna element 43. Further, it can be separated from the metal member disposed inside the mobile phone device 1, and further excellent antenna characteristics can be obtained.

  In the example shown in FIGS. 5A and 5B, the cellular phone device 1 bends the tip portion of the antenna element 43 and sandwiches the bent tip portion by the holding member 42b for fixing.

  Furthermore, as shown in FIG. 6, the mobile phone device 1 may have a configuration in which a fixing clamping member 42 b is also arranged on the back surface of the first circuit board 41 (the surface where the power feeding unit 44 is not provided). In this way, the cellular phone device 1 can further expand the selectivity to the shape of the antenna element 43 and obtain good antenna characteristics.

  Further, in the conventional type, since the shape of the resin mold is determined by the shape of the outer case of the terminal device, there is a restriction on the place where the antenna element can be arranged. However, since the cellular phone device 1 according to the present embodiment can form the antenna element 43 relatively freely in accordance with the structure of the cellular phone device 1 as described above, the shape of the antenna element 43 is There is a merit that restrictions are difficult to occur.

  Further, as shown in FIG. 7, the cellular phone device 1 has a configuration in which a reference potential portion 45 is formed on a first circuit board 41 and at least two sandwiching members 42 are arranged at a predetermined interval. May be. In such a configuration, the first clamping member (hereinafter referred to as a power feeding clamping member) 42 a is electrically connected to the power feeding unit 44. The second clamping member (hereinafter, referred to as a GND clamping member) 42 c is electrically connected to the reference potential unit 45.

  In this way, the cellular phone device 1 can configure a so-called inverted F antenna by connecting the GND clamping member 42c to the reference potential unit 45.

  Further, in the mobile phone device 1, the resonance frequency of the antenna is adjusted by changing the position where the GND clamping member 42c is arranged and changing the distance between the power feeding clamping member 42a and the GND clamping member 42c. Can do.

  Further, as shown in FIG. 8B, the antenna element 43 has a planar shape, the ends of the one end portion 43a and the other end portion 43b are opposed to each other on the same axis at a predetermined interval, and the same axis. One end portion 43a and the other end portion 43b may be arranged so as to intersect at a predetermined angle with respect to the center.

  Here, the cellular phone device 1 can transmit and receive signals in a plurality of different frequency bands (for example, 800 MHz band and 2 GHz band) by using one antenna element 43. In the case of the configuration shown in FIG. 8A, the cellular phone device 1 transmits and receives signals in the 800 MHz band by a long element formed by the one end portion 43 a from the portion sandwiched by the sandwiching member 42, and the sandwiching member 42. A signal in the 2 GHz band can be transmitted and received by a short element formed by the other end portion 43b from the portion sandwiched between the two.

  However, in the cellular phone device 1, when both ends of the antenna element 43 face each other at the same angle with the same axis as the center (see FIG. 8A), coupling occurs between the long element and the short element. It becomes impossible to perform good communication. In order to avoid this coupling, it is necessary for the cellular phone device 1 to change the length and shape of the antenna element 43, which increases costs.

  Therefore, in the mobile phone device 1 according to the present embodiment, as shown in FIG. 8B, the ends of the one end portion 43a and the other end portion 43b of the antenna element 43 face each other on the same axis at a predetermined interval. In addition, since the one end portion 43a and the other end portion 43b are arranged at a predetermined angle with the same axis as the center, the coupling between the one end portion 43a and the other end portion 43b can be reduced. No need to change sheath shape. The predetermined angle is 90 degrees in the configuration example shown in FIG. 8B, but is not limited thereto.

  In this way, the cellular telephone device 1 can arrange the elements orthogonally so as to avoid coupling of the elements, and can obtain good characteristics in a plurality of different frequency bands.

  Further, as shown in FIG. 9, the mobile phone device 1 is disposed inside a housing (for example, the operation unit side housing unit 2), and includes a second circuit board 51 different from the first circuit board 41, A third clamping member 42d provided on the two-circuit board 51 and different from the first clamping member 42a may be provided. In the case of such a configuration, the second circuit board 51 is arranged with a predetermined clearance at a position facing the first circuit board 41. The antenna element 43 is sandwiched between a first sandwiching member 42 a provided on the first circuit board 41 and a third sandwiching member 42 d provided on the second circuit board 51.

  Here, the cellular phone device 1 uses, for example, the first circuit board 41 as a main board (a board on which a CPU or the like is mounted and a component for performing basic processing), and the second circuit board 51 is used. It can be considered to be used as a sub board (for example, a board on which a camera unit or the like is mounted).

  In this way, when the mobile phone device 1 is arranged with a predetermined clearance between the main board and the sub board, the antenna element 43 can be arranged in this clearance, so that the clearance is effective. Can be used.

  In addition, the mobile phone device 1 can sandwich the antenna element 43 in the upward direction and the downward direction by mounting the third clamping member 42d on the sub-board that faces the main board, so that the stability of the antenna element 43 is improved. Can be improved.

  In addition, the mobile phone device 1 is disposed inside a housing (for example, the operation unit side housing unit 2) as illustrated in FIG. 9 and includes a second circuit board 51 different from the first circuit board 41, and a second circuit board 51. In the configuration provided on the circuit board 51 and provided with a third clamping member 42d different from the first clamping member 42a, as shown in FIG. 10, the antenna element 43 has a planar shape, and one end 43a and the other end The first clamping member 42a, so that the tips of the portions 43b are opposed to each other on the same axis at a predetermined interval, and the one end 43a and the other end 43b intersect at a predetermined angle around the same axis; The structure clamped by the 3rd clamping member 42d may be sufficient.

  Thus, since the mobile phone device 1 is arranged so that the third clamping member 42d faces the planar direction of the second circuit board 51, the other end 43b of the antenna element 43 is perpendicular to the one end 43a. In this case, the other end 43b can be held as shown in FIG.

  Therefore, the cellular phone device 1 is bent so that the other end 43b is orthogonal to the one end 43a in order to avoid the coupling between the one end 43a and the other end 43b of the antenna element 43. In addition, since the other end portion 43b can be fixed by the third clamping member 42d, the clearance between the substrates can be effectively used while the physical stability of the antenna element 43 is ensured, and good antenna characteristics are obtained. be able to. The second circuit board 51 may have a configuration in which an antenna pattern having a predetermined shape is formed and the antenna pattern and the third clamping member 42d are electrically connected. In the case of such a configuration, the cellular phone device 1 can extend the length of the antenna element 43 by the antenna pattern.

  Here, a conventional cellular phone device uses a reference potential portion formed on a circuit board as an antenna ground (GND). Further, the mobile phone device has a configuration (slide type or the like) in which the operation unit side housing unit having the first circuit board and the display unit side housing unit having the third circuit board are connected by the connection unit. When the open state (slide-up) is set and the closed state (slide-down) is set, the shape of the GND may change in high frequency. In this case, the antenna characteristics of the mobile phone device also fluctuate with a change between the open state and the closed state.

  The cellular phone device 1 according to the present embodiment employs a configuration in which impedance adjustment is performed by sliding the antenna element 43 in accordance with a change in form. Therefore, the cellular phone device 1 according to the present embodiment can obtain good antenna characteristics even if the form changes. A specific configuration example will be described below.

  As shown in FIG. 11, the mobile phone device 1 includes a third circuit board 61 that is different from the first circuit board 41. As described above, the mobile phone device 1 (housing) has the operation unit side housing 2 (first housing) connected by the connecting portion (not shown) so as to be open and closed. It is comprised from the display part side housing | casing part 3 (2nd housing | casing).

  In the configuration shown in FIG. 11, the first circuit board 41 is arranged inside the operation unit side body 2. The third circuit board 61 has a reference potential portion 45 formed therein and is arranged inside the display unit side body 3. Further, the antenna element 43 sandwiched by the sandwiching member 42 provided on the first circuit board 41 slides while being sandwiched by the sandwiching member 42 with the movement between the open state and the closed state, The reference potential portion 45 formed on the third circuit board 61 in the open state is not in contact with the reference potential portion 45 formed on the third circuit board 61 in the closed state. .

  For example, when the cellular phone device 1 is opened, the antenna element 43 functions as a monopole antenna (inverted L-shaped antenna) by switching the antenna element 43 to a non-grounded state (FIG. 11A). In this case, the antenna element 43 can be made to function as an inverted F antenna by switching the antenna element 43 to the ground state (11 (b)).

  Note that the mobile phone device 1 may have any configuration as long as the grounding state of the antenna element 43 can be switched between the open state and the closed state.

  In this way, the cellular phone device 1 can appropriately switch the antenna configuration in accordance with the change between the open state and the closed state, and therefore, by linking with an application suitable for each of the open state and the closed state, Changes in the antenna configuration can be preferably used.

  Further, the mobile phone device 1 includes a third circuit board 61 different from the first circuit board 41 as shown in FIG. As described above, the mobile phone device 1 (housing) includes the operation unit side housing unit 2 (first housing) and the display unit side housing that are connected by the connecting unit so as to be in an open state and a closed state. It is comprised from the body part 3 (2nd housing | casing).

  In the configuration illustrated in FIG. 12, the first circuit board 41 is disposed inside the operation unit side body 2. The third circuit board 61 has a reference potential portion 45 formed therein and is disposed inside the display unit side body 3. The antenna element 43 held by the holding member 42 provided on the first circuit board 41 is configured to come into contact with the reference potential portion 45 formed on the third circuit board 61 and is in an open state. The antenna element 43 slides while being held by the holding member 42 as it moves between the closed state and the closed state, so that the position where the antenna element 43 contacts the reference potential portion 45 is different between the open state and the closed state. It is configured.

  For example, the cellular phone device 1 configures an inverted F antenna in both the open state and the closed state. However, when the mobile phone device 1 is in the open state, the distance from the grounding position to the one end portion 43a of the antenna element 43 is reduced. The distance from the position to the grounding position is configured to be long (FIG. 12A), and when in the closed state, the distance from the grounding position to the one end 43a of the antenna element 43 is long, that is, from the power feeding position. The distance to the grounding position is configured to be short (FIG. 12 (b)).

  Thus, since the cellular phone device 1 can change the resonance frequency by changing the grounding position of the inverted F antenna between the open state and the closed state, the optimal antenna characteristics can be obtained between the open state and the closed state. Obtainable.

  In addition, the mobile phone device 1 includes a third circuit board 61 different from the first circuit board 41 as shown in FIG. As described above, the mobile phone device 1 (housing) includes the operation unit side housing unit 2 (first housing) and the display unit side housing that are connected by the connecting unit so as to be in an open state and a closed state. It is comprised from the body part 3 (2nd housing | casing). The first circuit board 41 is disposed inside the operation unit side body 2. The third circuit board 61 has a reference potential portion 45 formed therein and is disposed inside the display unit side body 3.

  In the configuration shown in FIG. 13, the antenna element 43 is slidably held by a holding member 42 provided on the first circuit board 41. In addition, one end portion 43 a of the antenna element 43 is connected to a reference potential portion 45 formed on the third circuit board 61. In addition, when the operation unit side body unit 2 and the display unit side body unit 3 transition between the open state and the closed state by the connecting unit, the mobile phone device 1 causes the antenna element 43 to move along with the transition. The position where the antenna element 43 is clamped by the clamping member 42 changes.

  For example, the cellular phone device 1 configures the inverted F antenna in both the open state and the closed state, but when the mobile phone device 1 is in the open state, the distance from the feeding position to the other end 43b of the antenna element 43 is increased. However, when the closed state is established, the distance from the feeding position to the other end 43b of the antenna element 43 is configured to be short (FIG. 13B).

  Thus, since the holding position by the holding member 42 changes between the open state and the closed state, that is, the power supply position by the power supply unit 44 changes, the mobile phone device 1 can change the resonance frequency, and the open state Optimal antenna characteristics can be obtained in the closed state.

  In the configuration shown in FIGS. 11 to 13, the reference potential portion 45 is formed on the third circuit board 61 arranged in the display unit side body 3, and the antenna element 43 sandwiched between the sandwiching members 42 serves as a reference. Although it is a structure electrically connected to the electric potential part 45, this invention is not limited to this. For example, the sheet metal member for fixing the display unit disposed in the display unit side body unit 3 is electrically connected to the reference potential unit 45, and the antenna element 43 is electrically connected to the sheet metal member. Alternatively, a member that is electrically connected to the reference potential unit 45 may be disposed in the operation unit side body unit 2.

DESCRIPTION OF SYMBOLS 1 Cellular phone apparatus 2 Operation part side housing | casing part 3 Display part side housing | casing part 41 1st circuit board 42 Holding member 43 Antenna element 44 Feeding part 45 Reference potential part 51 2nd circuit board 61 3rd circuit board

Claims (8)

A housing,
A first circuit board disposed inside the housing;
A first clamping member provided on the first circuit board and having conductivity;
An antenna element sandwiched between the first sandwiching member and electrically connected to the first sandwiching member;
A power supply unit provided on the first circuit board,
The first clamping member is a terminal device electrically connected to the power feeding unit. A reference potential portion is formed on the first circuit board, and a second clamping member is disposed at a predetermined interval from the first clamping member,
The terminal device according to claim 1, wherein the second holding member is electrically connected to the reference potential portion.   The antenna element has a planar shape, and ends of one end and the other end are opposed to each other on the same axis at a predetermined interval, and the one end and the other end are centered on the same axis. The terminal device according to claim 1, wherein the terminals are arranged at a predetermined angle. A second circuit board disposed inside the housing and different from the first circuit board;
A third clamping member provided on the second circuit board,
The second circuit board is disposed at a position facing the first circuit board;
The terminal device according to claim 1, wherein the antenna element is sandwiched between the first sandwiching member and the third sandwiching member.   The antenna element has a planar shape, and ends of one end and the other end are opposed to each other on the same axis at a predetermined interval, and the one end and the other end are centered on the same axis. The terminal device according to claim 4, wherein the terminal device is sandwiched between the first sandwiching member and the third sandwiching member so that the two intersect each other at a predetermined angle. A third circuit board different from the first circuit board;
The housing is composed of a first housing and a second housing that are connected by a connecting portion so as to be in an open state and a closed state,
The first circuit board is disposed inside the first housing;
The third circuit board has a reference potential portion formed therein and is disposed inside the second housing.
The antenna element held by the first holding member provided on the first circuit board does not come into contact with the reference potential portion formed on the third circuit board in the open state, and is closed. The terminal device according to claim 1, wherein the terminal device is configured to come into contact with the reference potential portion formed on the third circuit board in a state. A third circuit board different from the first circuit board;
The housing is composed of a first housing and a second housing that are connected by a connecting portion so as to be in an open state and a closed state,
The first circuit board is disposed inside the first housing;
The third circuit board has a reference potential portion formed therein and is disposed inside the second housing.
The antenna element held by the first holding member provided on the first circuit board is in contact with the reference potential portion formed on the third circuit board,
The terminal device according to claim 1, wherein a position where the antenna element is in contact with the reference potential portion is different between the open state and the closed state. A third circuit board different from the first circuit board;
The housing is composed of a first housing and a second housing that are connected by a connecting portion so as to be in an open state and a closed state,
The first circuit board is disposed inside the first housing;
The third circuit board has a reference potential portion formed therein and is disposed inside the second housing.
The antenna element is slidably held by the first holding member provided on the first circuit board,
One end portion of the antenna element is connected to the reference potential portion formed on the third circuit board,
When the first casing and the second casing transition between an open state and a closed state by the connecting portion, the antenna element slides with the transition, and the first antenna element is slid in the antenna element. The terminal device according to claim 1, wherein a position held by the holding member changes.

Images