JP2011234179A - Portable radio terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable radio terminal which is capable of dealing with a multi-application system and ensuring sufficient isolation between antennas.SOLUTION: A portable radio terminal includes: a first housing; a second housing; a first slide member provided in the first housing and comprised of a metal; a second slide member provided inside the first slide member and comprised of a metal; a slider to which the first housing and the second housing are connected to be freely elongated/contracted by fixing the second slide member to the second housing; a first circuit board provided in the first housing; a second circuit board provided in the second housing; a first radio system provided on the first circuit board; and a second radio system provided on the second circuit board and operating in an operational frequency different from that of the first radio system. Power is fed from the first circuit board to the first slide member as an antenna of the first radio system and power is fed from the second circuit board to the second slide member as an antenna of the second radio system.

Description

  The present invention relates to a portable wireless terminal, and more particularly to a portable wireless terminal in which a plurality of casings are slidably connected to each other.

  Conventionally, a portable wireless terminal in which a first housing and a second housing are slidably connected to each other is known. As this type of sliding portable wireless terminal, for example, there is one described in Patent Document 1.

  FIG. 8 shows a conventional sliding portable wireless terminal described in Patent Document 1. In FIG. 8, the slide type portable wireless terminal is provided with a slide part 23 and a slide groove 21, and in a state where the casing is extended, the slide part 23 and the slide groove 21 are fitted and electrically connected.

  The slide groove 21 is electrically connected to the substrate GND7 via the conductive wire 22, and the slide part and the substrate GND7 are electrically connected in a state where the housing is extended.

  With such a configuration, the GND condition of the antenna can be adjusted in a state where the first housing and the second housing are stored (stored state) and an extended state (extended state). Good antenna characteristics can be obtained regardless of the open / closed state of the housing.

  Further, FIG. 2 of Patent Document 2 shows the current phase of each board in the sliding portable wireless terminal by setting the feeding phases to opposite phases in the antenna feeding the LCD board 9 from both ends of the key board 10. A slide-type portable wireless terminal having the same phase and obtaining good antenna characteristics is described.

  Patent Document 3 describes a slide-type portable wireless terminal that operates using the slide rail itself as an antenna. Specifically, power is supplied between the housing 1 and the housing 2 to the slide means 21. A technique is disclosed that includes a power feeding unit 7 and operates as a dipole antenna between the housing 1 and the housing 2.

JP 2006-333387 A (page 11, FIG. 5) JP 2007-074667 (page 11, FIG. 2) International Publication No. 2006/092979 (page 10, Fig. 1)

  However, in the conventional configuration, since the GND condition is switched corresponding to one frequency band that operates simultaneously, only the operation of the antenna corresponding to a single application is supported, and a plurality of applications that operate simultaneously are supported. It was difficult to mount on a portable wireless terminal corresponding to the corresponding multi-application system.

  In addition, these conventional techniques do not include a technique for ensuring isolation between antennas corresponding to each application, which is an important parameter for providing an antenna that allows a plurality of applications to operate satisfactorily.

  In order to solve the above-described problems, the present invention provides an antenna corresponding to a multi-application system and a portable wireless terminal that can sufficiently secure isolation between the antennas.

  The portable wireless terminal of the present invention is a portable wireless terminal equipped with a plurality of wireless systems having different operating frequencies, and is provided with a first casing, a second casing, and the first casing, and is made of metal. A first slide member, a second slide member provided inside the first slide member and made of metal, and the second slide member being fixed to the second housing, A slide part in which one housing and the second housing are connected to be stretchable; a first circuit board provided in the first housing; a second circuit board provided in the second housing; A first wireless system provided on the first circuit board and a second wireless system provided on the second circuit board and having an operating frequency different from the first wireless system, and serving as an antenna of the first wireless system The first slide from the first circuit board To power the timber has a configuration for supplying power to the second slide member from said second circuit board as the antenna of the second radio system.

  With this configuration, the antenna ground plane (hereinafter referred to as antenna GND) of the antenna of the first radio system and the antenna of the second radio system can be divided into different circuit boards, and good isolation between the antennas can be achieved. Can be secured.

  Further, in the portable wireless terminal of the present invention, the first slide member is a rail having a length of 1/10 wavelength or more of a low operating frequency of the first wireless system and the second wireless system, It has the structure arrange | positioned in parallel with the expansion-contraction direction of a housing | casing along one side of the said 1st housing | casing.

  With this configuration, the wireless system can be operated as a non-micro antenna and a good antenna gain can be obtained.

  In the portable wireless terminal of the present invention, the second slide member has a configuration in which the length of the housing in the expansion / contraction direction is shorter than that of the first slide member.

  With this configuration, it is possible to configure the antennas of the two wireless systems without impairing the flexibility of expansion / contraction of the terminal.

  In addition, the portable wireless terminal of the present invention has a configuration in which a first filter unit that cuts off an operating frequency of the second wireless system is provided while the first wireless system and the first slide member are electrically connected. .

  With this configuration, it is possible to ensure isolation in the frequency band of the first radio system in the second radio system, and it is possible to ensure better isolation characteristics as the entire radio system.

  In addition, the portable wireless terminal of the present invention has a configuration in which a second filter unit that cuts off an operating frequency of the first wireless system is provided while the second wireless system and the second slide member are electrically connected. .

  With this configuration, it is possible to ensure isolation in the frequency band of the second radio system in the first radio system, and it is possible to ensure better isolation characteristics as the entire radio system.

  The portable wireless terminal according to the present invention supplies power to the first wireless system from one end portion of the slide portion in a state where the slide portion is housed, and connects the second wireless system to the other end of the slide portion. It has the structure which supplies electric power from an edge part.

  With this configuration, the antenna feeding points of the antennas can be physically separated, and better isolation characteristics can be ensured.

  In the portable wireless terminal of the present invention, the detecting means for detecting the extended and retracted state of the slide part, the first power feeding part provided on the first slide member, and the first of the first slide member. A switching unit that switches and connects the second feeding unit provided at a position different from the feeding unit, the first wireless system, and the first feeding unit or the second feeding unit according to a detection result of the detection unit; It has the composition provided with.

With this configuration, the antenna feeding point of the first wireless system can be switched so that the antenna feeding points are physically separated from each other when the sliding portable wireless terminal is stretched / stretched. It is possible to ensure a good isolation characteristic.
In addition, the portable wireless terminal of the present invention includes a third power feeding unit of the second wireless system provided on the second slide member, and the switching unit includes the first power feeding unit depending on an expansion / contraction state of the portable wireless terminal. Or it has the structure which selects the electric power feeding part spaced apart from the said 3rd electric power feeding part from any one of the said 2nd electric power feeding part.

  With this configuration, the antenna feeding point of the second wireless system can be switched so that the antenna feeding points are physically separated from each other when the sliding portable wireless terminal is stretched / stretched. It is possible to ensure a good isolation characteristic.

  The portable wireless terminal of the present invention is a portable wireless terminal equipped with a plurality of wireless systems operating in the same frequency band, and is provided with a first casing, a second casing, and a metal provided in the first casing. At least two or more first slide members configured, at least two or more second slide members provided in the first slide member, and made of metal, and the second slide member being the first slide member. The first casing and the second casing are connected to each other so that the first casing and the second casing can be extended and contracted, a first circuit board provided in the first casing, and the first casing. A second circuit board provided in two housings, a first wireless system provided on the first circuit board, and a second operating frequency provided on the second circuit board and having a different operating frequency from the first wireless system. A first wireless system comprising: a wireless system; The first slide member that feeds power from the first circuit board as the antenna and the first slide member that is different from the first slide member that feeds power from the second circuit board as the antenna of the second wireless system It has the structure which supplies electric power to.

  With this configuration, in a plurality of antennas operating simultaneously in the same frequency band, the antenna GND can be divided into different circuit boards, and good isolation between the antennas can be ensured.

  Further, in the portable wireless terminal of the present invention, the first slide member is a rail having a length of 1/10 wavelength or more of a low operating frequency of the first wireless system and the second wireless system, It has the structure arrange | positioned in parallel with the expansion-contraction direction of a housing | casing along one side of the said 1st housing | casing.

  With this configuration, the wireless system can be operated as a non-micro antenna and a good antenna gain can be obtained.

  In the portable wireless terminal of the present invention, the second slide member has a configuration in which the length of the housing in the expansion / contraction direction is shorter than that of the first slide member.

  With this configuration, it is possible to configure the antennas of the two wireless systems without impairing the flexibility of expansion / contraction of the terminal.

  Further, in the portable wireless terminal according to the present invention, the first circuit board and the second circuit board are portions where the first slide member and the second slide member overlap the first circuit board and the second circuit board. The conductive material is removed.

  With this configuration, the conductor can be moved away from the periphery of the slide member, and a high-gain, wide-band antenna can be provided.

  According to the portable wireless terminal of the present invention, an antenna corresponding to a multi-application system can be provided and sufficient isolation between the antennas can be secured.

(A) Front view of portable wireless terminal in embodiment 1 of the present invention, (b) Rear view of first casing of portable wireless terminal in embodiment 1 of the present invention, (c) Implementation of the present invention Front view of second housing of portable wireless terminal in form 1 Side view of portable wireless terminal according to Embodiment 1 of the present invention (A) The figure which shows the internal structure of the 1st housing | casing when the portable wireless terminal in Embodiment 1 of this invention is a accommodation state, (b) When the portable wireless terminal in Embodiment 1 of this invention is a accommodation state The figure which shows the internal structure of the 2nd housing | casing of (A) The figure which shows the internal structure of the 1st housing | casing when the portable radio | wireless terminal in Embodiment 1 of this invention is an expansion | extension state, (b) When the portable radio | wireless terminal in Embodiment 1 of this invention is an expansion | extension state The figure which shows the internal structure of the 2nd housing | casing of The figure which shows the simulation result of the isolation characteristic of the housing | casing expansion | extension state of the portable radio | wireless terminal in Embodiment 1 of this invention The figure which shows the internal structure of a 1st housing | casing at the time of setting the changeover switch of the portable radio | wireless terminal in Embodiment 1 of this invention to one. The figure which shows the internal structure of a 1st housing | casing when the portable radio | wireless terminal in Embodiment 2 of this invention is an expansion | extension state. A diagram showing a conventional sliding portable wireless terminal

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1A is a front view of the portable wireless terminal according to Embodiment 1 of the present invention. Moreover, FIG.1 (b) is a rear view of the 1st housing | casing of the portable radio | wireless terminal in Embodiment 1 of this invention. Moreover, FIG.1 (c) is a front view of the 2nd housing | casing of the portable radio | wireless terminal in Embodiment 1 of this invention.

  The first housing 1 includes a display unit 2 and operation keys 3a on the front. The first housing 1 includes slide rails 5a and 5b, sliders 6a and 6b, slider-side fixing holes 8a to 8d, and a magnetic sensor 50 on the back surface.

  The display unit 2 is a liquid crystal display (LCD), for example, and displays image data received by the portable wireless terminal. Further, the operation key 3a is arranged at the lower part of the display unit 2 and accepts a user's input operation.

  The slide rails 5a and 5b (first slide member) are made of metal, have a length of about 80 mm, and are provided along the longitudinal direction of the first housing.

  Note that the slide rails 5a and 5b are not limited to a length of about 80 mm, and it is sufficient that the slide rails 5a and 5b are not hindered from moving so as to be slidably retractable.

  A slider 6a that freely moves in the rail is provided in the slide rail 5a, and a slider 6b that freely moves in the rail is provided in the slide rail 5b. The sliders 6a and 6b (second slide member) are made of metal and are shorter than the slide rails 5a and 5b.

  The slider side fixing holes 8a and 8b are respectively provided on one end side and the other end side in the longitudinal direction of the slider 6a, and the slider side fixing holes 8c and 8d are provided on one side in the longitudinal direction of the slider 6b. It is provided on each of the end side and the other end side.

  The magnetic sensor 50 is disposed in the first housing and the magnet 51 is disposed in the second housing. When the housing is in the housed state, the magnetic sensor 50 detects the magnetic force of the magnet 51. When the casing is in an extended state, the magnetic force cannot be detected because they are separated from each other. In this way, the expansion and storage state of the portable wireless terminal is detected.

  The second housing 4 is provided with operation keys 3b, housing-side fixing holes 7a to 7d, and a magnet 51.

  The operation key 3b is disposed on the second housing 4 and accepts a user input operation.

  The case-side fixing holes 7 a to 7 d are arranged in the second case 4 and are used for fixing the first case 1 and the second case 4.

  Here, the housing side fixing holes 7a to 7d provided in the second housing 4 are coupled to the slider side fixing holes 8a to 8d provided in the sliders 6a and 6b by screws (not shown). The Thereby, the first casing 1 and the second casing 4 are slidable within a range in which the sliders 6a and 6b can move.

  The slide rails 5a and 5b and the sliders 6a and 6b are made of a conductor, and the first casing 1 and the second casing 4 are in a closed state, or the first casing 1 is closed. And the second housing 4 are electrically connected in any state.

  FIG. 2 is a side view of the mobile radio terminal according to Embodiment 1 of the present invention.

  A first substrate 9 is provided inside the first housing 1. In addition, a second substrate 17 is provided inside the second housing 4.

  Here, the first substrate 9 and the second substrate 17 are electrically connected via the connection cable 22. The connection cable 22 has a length of about 100 mm so that the housing and the substrate can be freely opened and closed.

  Note that the length of the connection cable 22 is not limited to about 100 mm, and it is only necessary to prevent the portable wireless terminal from being movable in an openable / closable manner.

  FIG. 3A is a diagram showing an internal structure of the first housing 1 when the portable wireless terminal according to Embodiment 1 of the present invention is in a closed state.

  A first substrate 9 is built in the first housing 1. A first wireless unit 10 for operating the first wireless system is mounted on the first substrate 9, and includes a first matching circuit 11, a second frequency band cutoff unit 12, a changeover switch 13, Power is supplied to the slide rail 5a through the feed line 15 and the slide rail grounding pad 16a or 16b.

  The first radio unit 10 corresponds to, for example, a one-segment broadcast (hereinafter referred to as one-segment) reception system that is one of digital TV broadcast services, and the corresponding frequency band is 473 MHz to 770 MHz.

  The change-over switch 13 is, for example, an SPDT (Single-Port Double-Throw) switch, and switches the route using the open / close control signal 14.

  The opening / closing control signal 14 is controlled by, for example, arranging the magnetic sensor 50 in the first housing 1 and arranging the magnet 51 in the second housing 4 to detect the opening / closing of the housing and replacing the signal with voltage. To do.

  As shown in FIG. 3A, when the casing is closed, the slider 6a is present at the top of the first casing. At this time, the changeover switch 13a on the upper side of the first casing 1 is not connected to the second frequency cut-off unit 12, and the changeover switch 13b on the lower side of the first casing 1 is in the open state. An open / close control signal 14 is generated so as to be connected to the frequency cutoff unit 12.

  FIG. 3B is a diagram showing an internal structure of the second housing 4 when the portable wireless terminal according to Embodiment 1 of the present invention is in a closed state.

  A second substrate 17 is built in the second housing 4. A second radio unit 18 for operating the second radio system is mounted on the second substrate 17, and is used for slider grounding via the second matching circuit 19 and the first frequency band cutoff unit 20. Power is supplied to the slider 6 a through the pad 21.

  The second radio unit 18 corresponds to, for example, WCDMA cellular transmission / reception, and the corresponding frequency is 830 MHz to 885 MHz.

  The length 80 mm of the slide rails 5 a and 5 b is 1/10 or more with respect to the wavelength of 473 MHz (λ≈634 mm) which is the lowest frequency shown in the present embodiment.

  In this embodiment, the cell-corresponding frequency of 1Seg and WCDMA is described. For example, the wavelength of the frequency corresponding to the wireless system such as W-LAN (Wireless-Local Area Network) system: compatible frequency 2.4 GHz band is used. The same effect can be obtained if it is 1/10 or more of the length of the slide rail.

  FIG. 4A is a diagram showing an internal structure of the first housing 1 when the portable wireless terminal according to Embodiment 1 of the present invention is in an open state.

  As shown in FIG. 4A, when the casing is opened, the slider 6a is present at the lower portion of the first casing. At this time, the changeover switch 13a on the upper side of the first casing 1 is connected to the second frequency cutoff unit 12, and conversely, the changeover switch 13b on the lower side of the first casing 1 is connected to the second frequency cutoff unit. The open / close control signal 14 is generated so as to be opened without being connected to the switch 12.

  FIG. 4B is a diagram showing an internal structure of the second housing when the sliding portable wireless terminal according to Embodiment 1 of the present invention is in the open state. The configuration inside the second housing 4 is the same as the configuration shown in FIG.

  Here, the isolation will be briefly described. Isolation is a value indicating “independence” between antennas or between radio systems. Considering the isolation between the antennas, if the isolation is 0 dB, the power radiated from one antenna is received by the other antenna as it is. That is, since there is no power radiated to the space, the operation as an antenna is not performed.

  Also, the higher the isolation, the less likely the other antenna is affected by the change in one antenna. In a portable wireless terminal equipped with a multi-application system, isolation is a very important parameter, and a higher wireless system can provide a better wireless system.

  FIG. 5 is a diagram showing a simulation result of the isolation characteristics of the sliding portable wireless terminal in the housing open state according to the first embodiment of the present invention.

  In order to show that isolation can be secured, the effect was confirmed by simulation. Here, a simulation with the housing opened was performed. The result is shown in FIG. The simulation conditions performed this time are shown below. The substrate size was 100 mm × 45 mm × 0.5 mm (length × width × thickness), the slide rail size was 80 mm × 5 mm × 2 mm, and the slider size was 15 mm × 4 mm × 3 mm.

  The size of the connection cable is 100 mm × 15 mm × 0.05 mm, and the connection cable is connected to each substrate and electrically connected. The distance between the substrates at that time was 10 mm.

  The definition of the housing open state is a state where one substrate is slid by 60 mm. For the power supply method, a model that directly supplies power to the slide rail and slider from another board was adopted to simplify the simulation. For comparison, an isolation characteristic when power is supplied from one substrate to both ends of the slide rail is also illustrated. As shown in FIG. 5, it can be seen that the isolation characteristic better by about 10 dB can be obtained when the power is supplied from another substrate in the frequency band of 0.5 GHz or more.

  From the above, it is confirmed that this configuration sufficiently secures isolation between the respective radio systems, and the effectiveness of the present invention can be shown.

  In the present embodiment, two changeover switches 13 are provided, but one may be used.

  FIG. 6 is a diagram illustrating an internal structure of the first housing 1 when the number of changeover switches of the portable wireless terminal according to Embodiment 1 of the present invention is one.

  According to the switching control signal 14c, the switch 13 is connected to the slide rail grounding pad 16a when the slide terminal is in the retracted state, and is connected to the slide rail grounding pad 16b when the slide terminal is in the extended state.

  In this case, the same effect as when two changeover switches 13 are provided can be obtained. Furthermore, the number of changeover switches can be reduced, and cost reduction can be realized.

  Further, regarding the first substrate 9 and the second substrate 17, the peripheral portion of the slide rail 5a to be fed, that is, the slide rail 5a, the first substrate 9 and the second substrate 17 in the present embodiment is viewed from the front. Delete the GND around the overlapping area.

  With this configuration, the radiation characteristics of the slide rail 5a as a radiation element can be improved, and good antenna characteristics can be obtained.

  In this embodiment, the slide rail 5 is disposed on the first housing 1 side, but the slide rail 5 may be disposed on the second housing 4 side. In that case, the same effect can be obtained.

  From the above, the configuration according to the first embodiment allows the multi-application-compatible sliding portable wireless terminal to obtain good characteristics without providing a dedicated member and ensuring the isolation of each application. Can be provided.

  Further, by switching the place where power is supplied in each open / closed state, it is possible to provide a portable wireless terminal capable of obtaining good characteristics regardless of the open / closed state.

(Embodiment 2)
The portable radio | wireless terminal in the 2nd Embodiment of this invention is shown.

  FIG. 7A shows the internal structure of the first housing 1 of the portable wireless terminal according to Embodiment 2 of the present invention.

  A first substrate 9 is built in the first housing 1. A first wireless unit 10 for operating the first wireless system is mounted on the first substrate 9, and the first wireless circuit 10 is mounted via the first matching circuit 11, the feed line 15, and the slide rail grounding pad 16c. Then, power is supplied to the slide rail 5a.

  FIG. 7B shows the internal structure of the second casing 4 of the portable wireless terminal according to Embodiment 2 of the present invention.

  A second substrate 17 is built in the second housing 4. A second wireless unit 18 for operating the second wireless system is mounted on the second substrate 17, and power is supplied to the slider 6 b through the second matching circuit 19 and the slider grounding pad 21. .

  The 1st radio | wireless part 10 and the 2nd radio | wireless part 18 respond | correspond to cellular transmission / reception of a WCDMA system, for example, and a corresponding | compatible frequency is 830 MHz-885 MHz.

  The length 80 mm of the slide rails 5 a and 5 b is 1/10 or more with respect to the wavelength of 830 MHz (λ≈361 mm) which is the lowest frequency shown in this embodiment.

  In this embodiment, the cell-corresponding frequency of 1Seg and WCDMA is described. For example, the wavelength of the frequency corresponding to the wireless system such as W-LAN (Wireless-Local Area Network) system: compatible frequency 2.4 GHz band is used. The same effect can be obtained if it is 1/10 or more of the length of the slide rail.

  The first substrate 9 and the second substrate 17 are electrically connected via a connection cable 22. The first substrate 9 and the second substrate 17 slide in the same manner as the first housing 1 and the second housing 4 slide. The connection cable 22 electrically connects the upper and lower substrates, and has a length of about 100 mm in order to move the housing / substrate slidably.

  Note that the length of the connection cable 22 is not limited to about 100 mm, and it is only necessary to prevent the sliding portable wireless terminal from being slidably movable.

  Further, for the first substrate 9 and the second substrate 17, the peripheral portions of the slide rails 5a and 5b to be fed, in this embodiment, the slide rails 5a and 5b, the first substrate 9 and the second substrate The GND around the portion where 17 overlaps with the front view is deleted.

  Power is supplied to the slide rail 5a from the first radio unit 10 mounted on the first substrate 9 via the slider 6a, and the second radio unit 18 mounted on the second substrate 17 is supplied to the slide rail 5b. Power is supplied directly from

  Unlike the first embodiment, the reason why the GND at the position overlapping the slide rail 5b in front view is also deleted is to operate the slide rail 5b as an antenna.

  Compared to the case of the first embodiment, this configuration assumes an application that operates simultaneously in the same frequency band. For example, a multi-input multi-output (MIMO) system or a wireless local area (W-LAN) system. In a sliding portable wireless terminal compatible with a (Network) system, isolation between two antennas can be ensured, and a wireless terminal having favorable characteristics can be provided.

  The portable wireless terminal according to the present invention can be installed in a space-saving antenna corresponding to a plurality of applications, and can provide good characteristics, so that it is useful for a mobile phone or the like on which a plurality of antennas are mounted. is there.

DESCRIPTION OF SYMBOLS 1 1st housing | casing 2 Display part 3 Operation key 4 2nd housing | casing 5 Slide rail 6 Slider 7 Housing | casing side fixing hole 8 Slider side fixing hole 9 1st board | substrate 10 1st radio | wireless part 11 1st Matching circuit 12 Second frequency cutoff unit 13 Changeover switch 14 Open / close control signal 15 Feed line 16 Slide rail grounding pad 17 Second substrate 18 Second radio unit 19 Second matching circuit 20 First frequency cutoff unit 21 Slider grounding pad 22 Connection cable 50 Magnetic sensor 51 Magnet 100 Screw

Claims (12)

In portable wireless terminals equipped with multiple wireless systems with different operating frequencies,
A first housing;
A second housing;
A first slide member provided on the first housing and made of metal;
A second slide member provided inside the first slide member and made of metal;
The second slide member is fixed to the second housing, so that the first housing and the second housing are connected in a telescopic manner;
A first circuit board provided in the first housing;
A second circuit board provided in the second housing;
A first wireless system provided on the first circuit board;
A second wireless system provided on the second circuit board and having an operating frequency different from that of the first wireless system;
Power is supplied from the first circuit board to the first slide member as an antenna of the first wireless system, and power is supplied from the second circuit board to the second slide member as an antenna of the second wireless system. Portable wireless terminal. The first slide member is a rail having a length of 1/10 wavelength or more of a low operating frequency of the first wireless system and the second wireless system, and along one side of the first casing. The portable wireless terminal according to claim 1, wherein the portable wireless terminal is arranged in parallel with a direction of expansion and contraction of the casing. The portable wireless terminal according to claim 2, wherein the second slide member has a shorter length in the expansion / contraction direction of the housing than the first slide member. 4. The first filter unit according to claim 1, further comprising a first filter unit configured to block an operating frequency of the second wireless system while the first wireless system and the first slide member are electrically connected. 5. The portable wireless terminal according to any one of the above. 5. The second filter unit according to claim 1, further comprising a second filter unit configured to block an operating frequency of the first wireless system while the second wireless system and the second slide member are electrically connected. The portable wireless terminal according to any one of the above. The first wireless system is fed from one end of the slide and the second wireless system is fed from the other end of the slide while the slide is stored. The portable wireless terminal according to any one of claims 1 to 5. Detecting means for detecting the extended and retracted state of the slide part;
A first power feeding portion provided on the first slide member;
The second power supply unit provided at a position different from the first power supply unit of the first slide member;
A switching unit that switches and connects the first wireless system and the first feeding unit or the second feeding unit according to a detection result of the detection unit;
The portable wireless terminal according to any one of claims 1 to 6, further comprising: A third power feeding unit of the second wireless system provided on the second slide member;
The switching unit is configured to select a power feeding unit that is further away from the third power feeding unit from either the first power feeding unit or the second power feeding unit according to an expansion / contraction state of the portable wireless terminal. The portable wireless terminal according to claim 7. In portable wireless terminals equipped with multiple wireless systems operating in the same frequency band,
A first housing;
A second housing;
At least two or more first slide members provided in the first housing and made of metal;
At least two or more second slide members made of metal and provided inside the first slide member;
The second slide member is fixed to the second housing, so that the first housing and the second housing are connected in a telescopic manner;
A first circuit board provided in the first housing;
A second circuit board provided in the second housing;
A first wireless system provided on the first circuit board;
A second wireless system provided on the second circuit board and having an operating frequency different from that of the first wireless system;
What is the first slide member that feeds power from the first circuit board to the first slide member as the antenna of the first wireless system, and what is fed from the second circuit board as the antenna of the second radio system? A portable wireless terminal that supplies power to different second slide members. The first slide member is a rail having a length of 1/10 wavelength or more of a low operating frequency of the first wireless system and the second wireless system, and along one side of the first casing. The portable wireless terminal according to claim 9, wherein the portable wireless terminal is arranged in parallel with an expansion / contraction direction of the housing. The portable wireless terminal according to claim 10, wherein the second slide member has a shorter length in the expansion / contraction direction of the housing than the first slide member. The first circuit board and the second circuit board are characterized by removing a conductive material in a portion where the first slide member and the second slide member overlap with the first circuit board and the second circuit board. The portable wireless terminal according to any one of claims 1 to 11.

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