JPH06112880A - Portable telephone set - Google Patents

Abstract

PURPOSE:To improve a portable performance by arranging a battery or power supply to one case, arranging a transmission reception antenna to the other case so as to set a centroid to the case of the battery side. CONSTITUTION:A case 11 having a battery 14 is set to an inside of a pocket 8, a case 10 having an antenna 12 is put out from the outside of the pocket 8, and the pocket 8 is just clipped by a stapler. Since the heavy battery 14 is put in the inside of the pocket 8, the portable radio equipment is contained stably in the pocket 8. Furthermore, since the antenna 12 is exposed at the outside of the pocket 8, the radiation efficiency of the antenna 12 is kept excellent. Since the antenna 12 is parted from a human body 7 of the user, the absorption of the radio wave by the human body especially at the transmission is less. Thus, the portable radio equipment is realized with excellent carrying performance, high antenna radiation efficiency and excellent convenience of use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless device used in a mobile wireless communication system.

[0002]

2. Description of the Related Art In recent years, with the spread of mobile radio, downsizing, thinning and cost reduction of portable radios have become important issues. Recently, ultra-compact mobile terminals have been actively developed for easy carrying.

However, as a result of prioritizing miniaturization, which is advantageous for carrying, these portable wireless devices have some problems in terms of the original performance, operability and usability of the wireless device. These examples are described below.

[0004] Usually, a portable radio device is often carried in a bag or carried in a chest pocket when being carried. FIG. 26 shows a conventional portable wireless device. The shape of the portable wireless device shown in FIG. 26A includes a battery 1, an antenna 2,
Speaker 3, display 4, keyboard 5, microphone 6
Made of. When carrying such a portable radio 9 in a chest pocket and carrying it in the chest pocket 8 in order to improve antenna radiation efficiency during transmission and reception,
As shown in FIG. 26 (b), it is necessary to pull out the antenna 2, which is very difficult to carry. further,
If the capacity is less than 100 cc and it becomes a very small portable radio, the volume allocated to the antenna will be very limited, so the monopole antenna 2 used in ordinary mobile phones is very thin. Therefore, the physical strength may not be maintained. Therefore, if the antenna 2 is left pulled out during carrying, there is always a fear that the antenna 2 will be broken. In addition, it is quite impossible in terms of physical strength of the antenna 2 to pull out or restore the thin antenna 2 like this each time it is used.

In order to solve such a problem, it is conceivable to use a so-called built-in antenna for transmitting and receiving without pulling the antenna 2 out, but in this case, the antenna 2 is not exposed to the outside. In the case of transmitting and receiving while still in the chest pocket 8, there is a problem that the antenna radiation efficiency is deteriorated. In a small-sized portable wireless device, there are restrictions on the area and location of the antenna, and the antenna radiation efficiency of the built-in antenna must be stricter than that of the conventional large-sized portable wireless device. Deterioration of the antenna radiation efficiency causes deterioration of reception sensitivity at the time of receiving a call, receiving the same-party communication from the base station, receiving a control signal, etc., for reception. Also, regarding transmission, problems such as attenuation of transmission power at the time of transmission from the terminal when the power of the terminal is turned on or exchange of control signals with the base station at the time of zone switching are caused. Further, as shown in FIG. 26, when the portable wireless device antenna 2 is close to the human body 7, the transmitted radio wave is absorbed by the human body, which causes a problem of reduction in transmission power. As described above, when transmitting / receiving the control signal, since the transmission / reception is performed without being aware that the user is using the portable wireless device, it is not possible to prevent the radiation efficiency of the antenna from being deteriorated by the user's confidence. Have difficulty.

From the viewpoint of miniaturization, the portable wireless device shown in FIG. 26 inevitably requires a distance between the microphone 6 and the speaker 3 of 15 to 20 cm between the mouth and the ear of the user. There are limits to miniaturization.

FIG. 27 shows another example of a conventional portable wireless device. This is a portable wireless device of a type that is made compact by making it a foldable type. When the user talks, the housing on the side where the microphone 6 is located is opened and the distance between the microphone 6 and the speaker 3 is set to 15 to 20 cm before use. In this type of portable wireless device, the microphone 6
Since it is folded and carried, it can be carried in a compact state in the length direction, and thus has an advantage that it is easier to carry than the portable wireless device shown in FIG. But,
If the antenna 2 is considered, there are the same problems as the portable wireless device shown in FIG. That is, the portable wireless device 9
In order to improve the radiation efficiency of the antenna when carrying it in the chest pocket 8 as shown in FIG.
It is necessary to pull out and it is difficult to carry.

[0008] Further, when such a portable radio device is miniaturized, the operation keys become too thin,
In particular, there is a problem in the physical strength of the keyboard 5. In the ultra-small portable device, a sheet-shaped keyboard 5 is usually used as the keyboard 5. However, such a thin keyboard has a problem that a thin panel is curved when a key is operated.

Furthermore, in the conventional portable radio telephone, the speaker 3, the microphone 6, the antenna 2, the keyboard 5, and the display 4 are exposed to the outside as shown in FIG. Therefore, the operation switch is exposed to the outside even when there is no particular need to operate it.

Therefore, if the switch is erroneously pressed by the user's carelessness when there is no need to operate the switch, it may malfunction and adversely affect the device or the communication line.

Also, the display surface of the display 4 and the surface of the keyboard 5 are easily soiled, especially the display 4 is soiled.
When it becomes difficult to read the displayed information, it becomes difficult to perform the operation.

Further, as the size of the radio becomes smaller, the surface area becomes smaller and the area allocated to the keyboard 5 and the display 4 becomes smaller. If the display 4 is dwarfed, the number of characters that can be displayed and the size of the characters are limited, making it difficult to read information. Also, the individual switches cannot be sufficiently sized and spaced from each other, and the switch adjacent to the target switch is pressed even though the user intends to press a specific switch, causing the device to malfunction. Had problems such as.

On the other hand, it is considered that the portable wireless device will be more frequently stored in the chest pocket in the near future. However, it is known that the influence of the antenna on the human body is relatively large in the portable wireless device. Further, it is known from the research results of the inventors of the present application that the electric field antenna such as a monopole antenna or an inverted F antenna has a lower radiation efficiency when a human body approaches it (The Institute of Electronics, Information and Communication Engineers, Antenna Propagation Research Group A / P90). -50). Therefore, there is a problem that the characteristics of the portable wireless device that is carried in a chest pocket or the like deteriorates due to the influence of the human body.

Further, even if the antenna is to be separated from the human body, when the radio device is placed in the chest pocket, it is expected that the radio device may warp and approach the human body depending on the direction of the radio device. Therefore, it is necessary to keep the direction of the antenna constant, but it was relatively difficult to force the user to consciously select the direction of the wireless device when the antenna was stowed in the pocket. This becomes very difficult, especially with built-in antennas. In addition, it is clear from the research results of the inventors that the antenna becomes closer to the head of the human body during a call due to the miniaturization of the portable wireless device, which greatly affects the human body. It has become.

Some antennas radiate strongly in the direction opposite to the human body depending on how they are mounted. However, similar to the above, when stored in a chest pocket or the like, depending on the direction of storage, the radiation is strongly emitted in the direction of the human body, which is contrary to the above, and the radiation characteristic is deteriorated.

When information is exchanged using the display of the portable wireless device, the conventional portable wireless device shown in FIG.
Since the display 4 was often attached near the center of the radio as shown in FIG. 2, the radio had to be taken out from the chest pocket 8 in order to see the display 4. It is difficult to perform such an operation relatively frequently, and it is difficult to make it a habit to always keep the position of the radio in the same direction.

Further, it is known that the input impedance of the antenna 2 fluctuates as the antenna 2 approaches the human body 7 (1990 Spring National Congress B-100 of the Institute of Electronics, Information and Communication Engineers). As a result, in the portable wireless device, a mismatch occurs between the antenna 2 and the impedance of the feeder line,
There is a problem that the radiation gain of the antenna 2 is reduced.

Some of the conventional radios are folded and stored in the pocket 8, but these are
It does not improve the characteristics of the antenna at all, but it is difficult to store it in the chest pocket 8 in an expanded form and to make the state optimal for the antenna of the radio device. there were.

[0019]

As described above, in the conventional portable wireless device, since the miniaturization is taken into consideration, the original characteristics of the transceiver when being carried are sacrificed. That is, in order to perform good transmission and reception with the portable wireless device in the chest pocket, it is necessary to pull out and use the antenna, but this is a problem for the small antenna in terms of physical strength, and If the antenna is used without being pulled out, the radiation efficiency of the antenna is deteriorated. As for receiving, when receiving a call, sibling communication from the base station,
Regarding the deterioration of the reception sensitivity at the time of receiving the control signal and the like, the transmission also has a problem such as a decrease in the transmission power at the time of powering on the terminal or exchanging the control signal with the base station at the time of zone switching. Therefore, there has been a need for a portable wireless device that can perform good transmission and reception without losing portability and while being carried. Further, there is a problem that the physical strength of the portable wireless device is sacrificed in order to realize the miniaturization.

Further, in the conventional portable wireless device, since the operation switch and the display are exposed on the surface even when the portable wireless device is not operated, there is a drawback that it causes a malfunction.

[0021] Further, there is a drawback that a portable wireless device carried in a chest pocket or the like is deteriorated in antenna characteristics under the influence of a human body.

The present invention has been made to solve such a conventional problem, and a first object thereof is to provide a portable radio device capable of excellent transmission and reception while being carried. .

A second object is to provide a portable wireless device which can prevent malfunction. Further, a third object is to provide a portable wireless device capable of reducing the influence of the human body and performing stable communication.

[0024]

In order to achieve the above object, the first invention of the present application is a portable wireless device in which two housings are connected at a bent portion and are foldable at the bent portion. , Characterized in that a battery for power supply is arranged in one case and an antenna for transmission and reception is arranged in the other case so that the center of gravity exists in the case on the battery side. is there.

A second aspect of the present invention is a portable wireless device having an operation switch and a display, which has an opening / closing lid on the surface of the main body, and the operation side is provided on the main body side covered with the opening / closing lid or on the inner surface of the opening / closing lid. At least one of a switch and a display is provided.

A third aspect of the present invention is a portable wireless device having a rectangular parallelepiped shape in which the longitudinal direction of the housing is longer than the lateral direction and the depth direction, and the upper side of the first surface in the vertical direction of the portable wireless device. A display is provided, and an antenna is provided on a second surface opposite to the first surface.

[0027]

In the first invention of the present application configured as described above, the case having the battery for power supply and the case having the antenna for transmission and reception can be folded at the bent portion, and The case is heavy. Therefore, when putting it in the chest pocket, if the battery-side casing is inside the chest pocket and the antenna-side casing is outside the pocket, and the device is mounted so as to sandwich the pocket, the radio will be stable in the pocket, and Since the antenna is put out of the pocket, the transmission / reception characteristics are improved.

Further, according to the second aspect of the present invention, the switch is exposed to the outside only when the operation is performed, and the input from the switch is accepted only at that time. Can be prevented.

Therefore, the stroke of the switch can be made smaller than that of the conventional portable wireless device, and a thin switch can be used.

Further, by using the inside of the opening / closing portion, it is possible to use the area twice as large as the area of the opening / closing lid, so that the area of the operation switch and the display can be made large and more reliable operation can be achieved. It can be carried out.
Furthermore, since the operation switch and the display are exposed to the outside only during operation, they are less likely to get dirty.

Further, in the third invention of the present application, as shown in FIG. 13, a display is attached near the tip of the portable radio, so that the display can be displayed without taking out the whole radio even if it is stored in the chest pocket. Information can be confirmed. Therefore, since it is such an easy operation, it becomes easy to make a habit, and by this, the position of the wireless device is unknowingly confirmed. At this time, by attaching the antenna to the radio body so that it is located away from the display, the antenna will always be placed away from the human body, which is optimal for the antenna, and the influence of the human body will be reduced. It Furthermore, as shown in FIG. 14, by carrying back the radio body so that the carrier can easily see the information on the display when it is put in the breast pocket, the carrier can perform the above-mentioned operation more easily. Can be done. In this way, the shape of the front and back can be easily distinguished, and if the display is stored in the opposite direction, it will not fit well and the carry will be given a space between foreign objects, so that the display should be stored so as to face the face naturally. It is shaped so as to encourage the carry. Further, since the antenna is located near the extension of the display, if the display is stored in the chest pocket so as to face the face of the carrying person, the antenna will be located away from the human chest. Moreover, since the antenna is positioned as far as possible from the human body even during a call, it can be expected that the influence of the human head is reduced.

By setting the bending position and the position of the handset from the feeding point of the antenna to about a quarter wavelength, the direct influence on the maximum current distribution of the human body located at the feeding point is reduced. Therefore, it is possible to reduce the fluctuation amount of the input impedance of the antenna due to the human body.

There is a case where the radio device is folded or not depending on the clothes design and the like. Therefore,
When the folding portion is movable, it is possible to select the state of the wireless device depending on the clothes worn. However, as described above, the portion of the main body of the wireless device below the bent portion is affected by the human body. Therefore, here too, by setting the bent portion to have a wavelength of about a quarter of the antenna feed line, a large fluctuation does not occur in the current distribution near the feed point.

[0034]

Embodiments of the present invention will be described below with reference to the drawings. 1 (a) to 1 (c) are configuration diagrams showing a first embodiment of a portable wireless device to which the present invention is applied. As shown in FIG. 3A, the housing of this portable wireless device is divided into two parts 10 and 11 having one inflection point and having substantially the same length. (B) is a view of the portable wireless device opened, and (c) is a view of the opened state seen from above. This portable wireless device has a housing 11
The battery 14 is provided on the side, and the antenna 12 is provided on the side of the housing 10.
Is equipped with. That is, the battery 14 and the antenna 12
Is characterized in that different housings are provided.

Further, in the example of FIG. 1, a speaker 17 is provided on the side of the housing having the battery 14, and a microphone 18 is provided on the side of the housing having the antenna 12. The distance between the microphone 18 and the speaker 17 is set to a convenient mouth-ear distance (about 15 to 20 cm) when the portable wireless device is opened. In addition, the keyboard 1 is provided above the battery 14.
6, and further includes displays 19 and 20. The two housings are connected by a hinge 13 so that they can be opened and closed appropriately. Further, since the transmission / reception circuit 15 is preferably electrically mounted near the transmission / reception antenna 12, it is included in the antenna side casing in this example.

FIG. 2 shows an example of carrying the portable radio device in a chest pocket of a shirt. In FIG. 2, 11 is a housing on the side having the battery 14, and 10 is a housing on the side having the antenna 12. When carrying the portable radio device, as shown in FIG.
The housing 10 with the antenna 12 is taken out of the pocket 8 so that the pocket 8 is just sandwiched by a stapler. In such a case, the portable wireless device is characterized in that the heavy battery 14 enters the inside of the pocket 8 so that the portable wireless device can be stably accommodated in the pocket 8. Further, since the antenna 12 is exposed to the outside of the pocket 8, there is an advantage that the radiation efficiency of the antenna 12 can be kept better than when the conventional portable wireless device is carried. Further, since the antenna 12 is far away from the human body 7 of the user, it is also excellent in that the absorption of radio waves into the human body is small especially during transmission. In addition, when carrying a portable radio, you usually put it in a shirt or a chest pocket of a suit, but in summer and other times when you don't wear a suit, you can carry it in the chest pocket of a shirt like this portable radio. Things like this are more convenient.

As shown in FIG. 2, the portable radio device is carried in a state of being sandwiched by something, so that the keyboard 16 does not accept an input in the closed state or the open state of FIG. 1 (b). It suffices if a means for allowing the keyboard to accept input only in the open state is provided.

Next, FIG. 3 shows a portable radio apparatus according to the second embodiment of the present invention. The figure shows an example of using the portable wireless device by taking it out of a pocket or the like and placing it on a desk or the like. Since the back side of the battery of this portable wireless device is flat, it can be taken out from a pocket, a bag or the like and placed on a desk for use. In this case, as shown in FIG. 3, the case 11 provided with the battery is placed face down, and the case 10 provided with the antenna is bent to stand substantially perpendicular to the surface of the desk for use. In this case, in the present portable wireless device, the weight of the battery is large in the housing 11 having the battery, and this becomes a weight, and the state as shown in FIG. 3 can be stably maintained. Also, by making the weight balance between the housings 11 and 10 large on the 11 side, it is possible to naturally obtain the one as shown in FIG. 3 when it is placed on a desk or the like. Moreover, if the housing 10 with the antenna is placed so as to be perpendicular to the surface of the desk, the antenna is not affected by the desk and maintains good antenna characteristics even if the desk is metallic. It is possible. In this state, as shown in FIG. 3, it is easy to use, if the displays 19 and 20 are provided so that the characters can be read when the portable radio is set up. Therefore, as shown in FIG. 1, at least two displays 19 and 20 are provided, and if the respective displays 19 and 20 are provided so as to display characters in directions orthogonal to each other, the display as shown in FIG. It is convenient when it is used by standing on top of it.

Next, a portable radio device according to the third embodiment of the present invention will be described. As shown in FIG. 1, this portable wireless device includes a speaker 17 and a battery 14 in the same housing, and a microphone 18 and an antenna 12 in the same housing. Figure 4
[FIG. 8] is a diagram for explaining a third embodiment. In FIG. 4, the antenna is mounted on the surface of the housing 11 or built-in, but it is easy to adopt a form in which it is pulled out to the lower side of the portable wireless device as necessary, as shown in 12 during a call. Is. As described above, if the antenna 12 is provided in the case 11 on the microphone 18 side, that is, the case that is the lower side when held by hand, the antenna and the human body are used during a call rather than the case 10 on the speaker 17 side. Since the distance to the (head) is large, radio waves are less absorbed by the human body (head), good antenna radiation efficiency can be maintained, and good communication quality is maintained.

Although there has been an example in which the antenna 12 is installed in the vicinity of the microphone 18, the user's hand comes into contact with the antenna during a call, which causes the characteristics of the antenna to fluctuate and the radiation efficiency to deteriorate. was there. However, in the portable wireless device of this embodiment, in order to hold the wireless device stably, the user inevitably holds the battery-side casing 10 with the center of gravity of the wireless device in his hand and listens to the speaker 17. It will be an action that is pressed against. Therefore, the user's hand naturally moves away from the housing 11 on the antenna side, the human body has less influence on the antenna characteristics, and good communication can be performed.

Further, in the wireless radio terminal according to the present invention, even when the antenna is not of the form shown in FIG. 4 as shown in FIG. 4, the antenna is turned on when the housing is opened to operate the key panel. The effect is the same as when the antenna is pulled out, and in this case, it is possible to save the trouble of pulling out the antenna.

Further, the microminiature radio device has a problem in terms of physical strength, and in particular, there is a problem that the periphery of the keyboard where the key is operated many times is easily damaged or the thin key panel is curved. It is well known that there is. Therefore, in the first to third embodiments, as shown in FIG. 1, a keyboard 16 for inputting information and a display 20 for displaying the information are provided, and at least the keyboard 16 and the battery 14 are the same. The keyboard 16 is provided on the housing, and further, as shown in FIG. Therefore, when the keyboard 16 is pressed, the heavy battery 14 supports the pressure from the keyboard 16, and the keyboard panel surface does not bend even during operation, and can have a physically sufficient strength. Therefore, it is possible to prevent the keyboard 16 from being damaged.

5 (a) and 5 (b) are block diagrams showing a portable radio device according to the fourth embodiment of the present invention. In the figure,
The switch 25 is a power switch, and 21 is an opening / closing lid. 22 is an operation switch installed inside the opening / closing part,
Reference numeral 23 is a display. The opening / closing lid 21 is opened when operating the switches 22 and the display 23. In the case of transmission, the opening / closing lid 21 is opened, the switch operation is performed while looking at the display 23, and after the operation is completed, the opening / closing lid 21 is closed, and the microphone 18 and the speaker 17 make a call. At the end of the call, the switch 24 arranged on the upper side of the wireless device is pushed with the open / close lid closed to go on hook.

Further, the opening / closing lid 21 is closed even during standby, and when a call is made, the switch 24 is pushed to go on hook.

Since the probability that the upper side or the lower side of the portable wireless device touches the operator is lower than that of the other sides, the switches which are not desired to be arranged in the opening / closing part are arranged on the upper side or the lower side for convenience of operation. Prevents erroneous operation. By arranging the antenna 12 at the center of the rotation axis of the opening / closing surface, the antenna 12 can be expanded and contracted without requiring an extra volume.
Can be equipped with.

The antenna 12 is parallel to the ground while the opening / closing lid 21 is being opened. Normally, the radio wave of the radio device is vertically polarized, so that the transmission / reception characteristics may deteriorate during this operation. Therefore, the antenna 26 is built in the opening / closing lid 21 to suppress deterioration of characteristics even when the opening / closing lid 21 is opened and operated. For example, if the height of the antenna 26 is λ / 15 or more with respect to the wavelength λ, it becomes almost equal to the band characteristic of the monopole antenna. (See FIGS. 11 and 12) Therefore, the antenna 26 turns the radio sideways,
The size of the opening / closing lid 21 is determined so that when the opening / closing lid 21 is opened, the opening / closing lid 21 can be built in the position where the vertically polarized wave can be effectively transmitted and received.

When the opening / closing lid 21 is closed, input from the switch 22 in the opening / closing lid 21 is not accepted. Also,
The display 23 is turned off. The antenna transmits and receives by 12. When the opening / closing lid 21 is open, input can be performed from the switch 22 inside the opening / closing lid 21, and the display 2
Display information in 3. Further, the antenna transmits and receives by the antenna 26 with a built-in lid.

FIG. 6 shows a block diagram. The open / closed state is detected by the switch 31. The on / off state of the switch 31 is detected by the open / close detection circuit 32 to determine the open / closed state.
Information on the determination result is sent to the switch control circuit 33 in the open / close lid, the display control circuit 35, and the antenna switching circuit 37. The switch control circuit 33 controls so as to receive the input from the switch 34 when the opening / closing lid 21 is open and not receive the input when the opening / closing lid 21 is closed. The display control circuit 35 performs display when the open / close lid 21 is open, and controls to turn off the power of the display when the open / close lid 21 is closed. The antenna switching circuit 37 controls so that the antenna 26 in the opening / closing lid 21 performs transmission / reception when the antenna switching circuit 37 is open, and the antenna 12 transmits and receives when the antenna switching circuit 37 is closed.

An example of a switch for detecting the opening / closing of the opening / closing lid 21 is shown in FIGS. The switch is configured by combining a J-shaped insulator 43 having a conductor piece 41 and a J-shaped insulator 44 having a conductor piece 42 around a rotating shaft 47 of the opening / closing lid 21. Conductive wires pass through the inside of the J-shaped insulator and electrically connect the conductor piece and the other of the J-shaped insulator.

When the opening / closing lid 21 is closed, the conductor piece 41 and the conductor piece 42 are separated from each other and are electrically insulated as shown in FIG. When the lid 21 starts to be opened, the conductor piece moves around the rotation axis as shown in FIG. 7C, and when the lid 21 is sufficiently opened, the conductor piece 41 and the conductor piece 42 come into contact with each other and are electrically connected. Furthermore, the tip of the conductor piece hits the other J-shaped insulator, so that it also functions as a stopper.
It can be opened and held at the proper angle for manipulation.

The electrical connection between the main body and the inside of the opening / closing lid 21 is shown in FIG.
It can be realized as in (a). Opening / closing lid 2 by this method
Regardless of the open / closed state of the conductor 5, the conductor 51 and the conductor 52 are in contact with each other and always have electrical coupling.

Further, by inserting a dielectric 55 between the conductor 51 and the conductor 52 as shown in FIG. 9B, an AC coupling can be created.

Next, a modification of the above-mentioned fourth embodiment will be described. As a means for electrically connecting the circuit inside the main body and the circuit inside the opening / closing lid, as shown in FIG. 9, a conducting wire may be passed through the rotating shaft of the opening / closing lid. Hollow pipe 58, 59, 56
Is added to form one rotary shaft. Further, it can rotate independently of 56, 58 and 59. The hollow pipe is provided with a hole with a guide, and the conductor 61 is passed through the hole into the hollow pipe. Both ends of the conductor are connected to the circuit inside the opening / closing lid and the circuit inside the main body, respectively. In addition, the conductors are covered with an insulator so as to prevent electrical contact due to rotation.

This method facilitates waterproofing and dustproofing of the joint between the opening / closing lid 21 and the main body. In addition, the hollow pipe 6
By providing 0, waterproof and dustproof of the electrical connection part is enhanced.

Further, the antenna 12 is arranged parallel to the rotation axis and shifted in position, and the stopper 62 is provided on the rotary lid 21 as shown in FIG.
The second protective cover 63 allows it to be opened and held at an angle suitable for operation.

Next, a fifth embodiment of the present invention will be described. FIG. 13 is a block diagram showing a portable wireless device according to the fifth embodiment. As shown in the figure, the antenna 2 includes the earpieces 4, 6
The display 4 and the keyboard 5 are attached on a surface adjacent to the surface on which the display 4 and the keyboard 5 are attached, and at a position as far as possible from the previous surface. Further, the display 4 is placed in the immediate vicinity of the antenna, and when it fits in the chest pocket of the user, the display 4 is housed so as to face the user's face.

FIG. 14 is a block diagram showing a sixth embodiment of the present invention. In the figure, the antenna 2 is a monopole antenna having a length of about λ / 4. Radio metal housing 65
Is bent in a V shape between the speaker 3 as the earpiece and the display 4. The bending angle in this figure is about 30 degrees. The antenna 2 is mounted on the extension of the metal housing surface on which the display 4 is mounted. The antenna 2 is covered with a resilient dielectric such as a vinyl radome 66, and the element of the monopole antenna therein is made of a spring 67 having a very small diameter, for example, a spring having a diameter of about one hundredth of a wavelength, or Is made up of lines of about a hundredth wavelength. The distance between the mouthpieces is about 15 cm.

FIG. 15 is a block diagram showing the seventh embodiment of the present invention. In this case, the entire radio housing 65 is curved.
The antenna 2 uses an inverted F antenna 69. The antenna 2 is made of a conductor wire having a diameter of about one hundredth, or is made by etching or the like on a dielectric substrate.
This is covered with a dielectric radome 68.

FIG. 16 is a block diagram showing the eighth embodiment of the present invention. In this case, the upper part of the wireless device housing 65 is cut obliquely, and the display 4 in this part is installed.
The antenna 2 is a normal mode helical antenna covered with a radome 68, and in this case, it is mounted parallel to the long axis of the radio housing.

17 and 18 are block diagrams showing a ninth embodiment of the present invention. In this case, the radio housing can be bent, and the cylindrical bulges at both ends of the lower part when expanded are battery boxes. Although the transceiver unit of the wireless device is becoming smaller and lighter due to the integration technology, it is expected that the battery, which is the power source unit, will have the same size and weight as in the current state because it is difficult to integrate. By arranging the battery at the bottom of the radio at this time, it becomes possible to stably stand the radio when the radio is deployed and placed on the plane. At this time, since the antenna 2 is arranged on the upper portion of the wireless device, it is convenient for the antenna 2 to transmit and receive radio waves because the antenna 2 can be stably stood in this manner. Also, since it is more stable for the radio to hold the side with the battery when holding the radio by hand and performing communication, unintentionally holding the bottom of the radio by hand, the antenna 2 is The effect of the hand on the antenna 2 is reduced due to the distance.

FIG. 19 is a block diagram showing the tenth embodiment of the present invention. Also in this case, as in the ninth embodiment, the wireless device housing 6 is used.
5 can be bent, and the lateral bulge of the keyboard 5 is a battery box. The positions of the microphone 6 and the speaker 3 are opposite to those of the ninth embodiment. In this case, the dial is dialed in the folded state. The antenna 2 is an inverted F antenna and is made by etching on a printed circuit board.

FIG. 20 is a block diagram showing the eleventh embodiment of the present invention. There are two possible mounting formats for the antenna 2. First, in (b) of the figure, the metal chassis 71 has a wireless circuit portion of an internal wireless device, and is housed inside the housing 65 for the purpose of shielding these. In this case, the microstrip antenna 72 is attached to the chassis 71 with the dielectric 73 interposed therebetween. Further, in (c), the antenna is mounted on the substrate 77 on which other components 76 and the like are mounted. Further, these antennas are attached to the surface facing the handsets 3 and 6 when the wireless device is assembled.

FIG. 21 is a block diagram showing the twelfth embodiment of the present invention. In this case, the antenna 78 is a plate-shaped inverted F-type antenna and is attached to the surface facing the handset. The mounting method is the same as in FIG. In the same figure (b), the metal chassis 71 has a wireless circuit section of a wireless device inside,
It is housed inside the housing 65 for the purpose of shielding these. In this case, the inverted F antenna 78 is attached to the chassis 71 with the dielectric 73 interposed therebetween. At this time, the short-circuit line 74 and the power supply line 75 are connected to the metal chassis 71 and the power supply point 79 by through holes. Further, in FIG. 7C, the antenna is the other component 7
6 and the like are mounted on the substrate 77. Further, these antennas are attached to the surface facing the handsets 3 and 6 when the wireless device is assembled. In addition, the feeding point 7 of the antenna is shown in both (b) and (c) of FIG.
9 and the short-circuit wire 74 are attached to the upper part of the radio device in the figure as much as possible.

FIG. 22 is a block diagram showing the thirteenth embodiment of the present invention. As shown in the figure, the speaker 3 is mounted at a position one quarter wavelength away from the surface on which the normal mode helical antenna 101 is mounted.

FIG. 23 is a block diagram showing the fourteenth embodiment of the present invention. In this example, the speaker 3 is similar to the example of FIG.
The monopole antenna 2 is attached at a position separated by a quarter wavelength from the surface on which the monopole antenna 2 is attached. Further, in this example, the housing 65 is bent right above the speaker 3.

FIG. 24 is a block diagram showing the fifteenth embodiment of the present invention. In this example as well, as in the example of FIG. 22, the speaker 3 is attached at a position separated by about a quarter wavelength from the feeding point to which the inverted F antenna 69 is attached, and in this example, the casing 65. Has an inclined structure directly above the speaker 3.

FIG. 25 is a block diagram showing the sixteenth embodiment of the present invention. In this example, the radio housings 65a and 65b are
The hinge portion 80 allows bending. Further, the hinge part 80 is installed at a place separated from the feeding point 79 of the inverted F antenna 69 by about a quarter wavelength, and further, by incorporating a high frequency circuit part in the radio device housing 65b, the hinge part 80 is provided. It is not necessary to pass a high-frequency wire in the portion 80, and deterioration of the performance of the wireless device due to bending is reduced.

[0068]

As described above, in the first invention of the present application, the housing constituting the portable wireless device is divided into two portions having one inflection point and having substantially the same length, and one housing is provided. Realizing a portable wireless device with excellent transmission and reception characteristics that is excellent in portability and has high antenna radiation efficiency by having an antenna for transmission and reception on the body and a battery in the other case can do. Further, it is possible to realize a portable wireless device which is convenient to use even when it is placed on a desk and used other than when it is carried.

Further, since the speaker and the battery are provided in the same housing, and the microphone and the antenna are provided in the same housing, the distance between the antenna and the human body (head) is increased during a call, so the radio wave from the human body (head) is increased. It is possible to maintain a good antenna radiation efficiency and to maintain good communication quality. In addition, since the user's hand naturally moves away from the antenna-side housing by providing the battery-side housing with the center of gravity, it is possible to reduce the influence of the human body on the antenna characteristics.

Further, since the keyboard for inputting information and the battery are provided in the same housing, the heavy battery can support the pressure from the keyboard even when the keyboard is pushed, so that the portable wireless device As, it is possible to physically have sufficient strength.

In the second invention of the present application, all or part of the surface of the portable wireless device is made an openable / closable surface, and a part of the operation switch, or the display or both are arranged inside the surface so that the operation can be performed. Other than that is not exposed to the outside, it is possible to prevent erroneous operation, and the surface of the operation switch and the display surface of the display are less likely to get dirty. Furthermore, by using the inside of the opening / closing part, the area of the opening / closing lid is 2 Since the double area can be used, the areas of the operation switch and the display can be made large, and more reliable operation can be performed.

Further, by installing the antenna on the opening / closing lid, the vertically polarized antenna can be used even when the operation switch inside the opening / closing lid is operated, so that the deterioration of the characteristics can be suppressed even during the operation. it can.

Further, in the third invention of the present application, by mounting the antenna on the radio body so as to be located away from the display, the antenna is always placed at a position away from the human body which is optimal for the antenna. Therefore, the influence on the human body is reduced. In addition, the carrier can easily recognize the information by bending the radio body so that the information on the display can be easily seen by the carrier when it is put in the chest pocket. .

[Brief description of drawings]

FIG. 1 is a configuration diagram of a mobile wireless device according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a state in which the portable wireless device according to the first embodiment is put in a chest pocket.

FIG. 3 is a configuration diagram of a mobile wireless device according to a second embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an example in which an antenna is attached to a microphone side.

FIG. 5 is a configuration diagram of a mobile wireless device according to a fourth embodiment of the present invention.

FIG. 6 is a block diagram showing a schematic configuration of a mobile wireless device according to a fourth embodiment.

FIG. 7 is a configuration diagram showing an example of an opening / closing detection switch of an opening / closing lid.

FIG. 8 is an explanatory view showing an electrical connection between the opening / closing lid and the main body.

FIG. 9 is a configuration diagram showing a modification of the fourth embodiment.

FIG. 10 is an explanatory view showing an example in which the opening angle of the opening / closing lid is made suitable.

FIG. 11 is an explanatory diagram showing band characteristics of the antenna.

FIG. 12 is an explanatory diagram showing band characteristics of an antenna.

FIG. 13 is a configuration diagram of a mobile wireless device according to a fifth embodiment of the present invention.

FIG. 14 is a configuration diagram of a mobile wireless device according to a sixth embodiment of the present invention.

FIG. 15 is a configuration diagram of a mobile wireless device according to a seventh embodiment of the present invention.

FIG. 16 is a configuration diagram of a mobile wireless device according to an eighth embodiment of the present invention.

FIG. 17 is a configuration diagram of a mobile wireless device according to a ninth embodiment of the present invention.

FIG. 18 is a configuration diagram showing a modification of the ninth embodiment.

FIG. 19 is a configuration diagram of a mobile wireless device according to a tenth embodiment of the present invention.

FIG. 20 is a configuration diagram of a mobile wireless device according to an eleventh embodiment of the present invention.

FIG. 21 is a configuration diagram of a mobile wireless device according to a twelfth embodiment of the present invention.

FIG. 22 is a configuration diagram of a mobile wireless device according to a thirteenth embodiment of the present invention.

FIG. 23 is a configuration diagram of a mobile wireless device according to a fourteenth embodiment of the present invention.

FIG. 24 is a configuration diagram of a mobile wireless device according to a fifteenth embodiment of the present invention.

FIG. 25 is a configuration diagram of a mobile wireless device according to a sixteenth embodiment of the present invention.

FIG. 26 is a configuration diagram showing a conventional portable wireless device to which the present invention is not applied.

FIG. 27 is a configuration diagram showing a conventional portable wireless device to which the present invention is not applied.

[Explanation of symbols]

1 Battery 2 Antenna 3 Speaker 4 Display 5 Keyboard 6 Microphone 7 Human Body 8 Pockets 10, 11 Housing 12 Antenna 13 Hinge 14 Battery 21
Open / close lid 65 Housing 66,68 Radome 67 Spring 69 Inverted F-shaped antenna 71 Metal chassis 72 Microstrip antenna 73 Dielectric

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuya Farmer Katsumi Komukai-cho, Kawasaki-shi, Kanagawa 1 Komatsu Toshiba Research Institute Co., Ltd. 1 Inside Toshiba Research Institute, Inc.

Claims (3)

[Claims] 1. A portable wireless device in which two housings are connected at a bent portion and can be folded at the bent portion, wherein one housing is provided with a battery for power supply, and the other housing is provided. A portable wireless device, wherein an antenna for transmission / reception is arranged in the casing of the device, and the casing on the battery side has a center of gravity. 2. A portable wireless device having an operation switch and a display, which has an opening / closing lid on the surface of the main body, and the main body side covered with the opening / closing lid, or the inner surface of the opening / closing lid among the operation switch and the display. A portable wireless device in which at least one is provided. 3. A portable wireless device having a rectangular parallelepiped shape in which a longitudinal direction of a casing is longer than a lateral direction and a depth direction, and a display is disposed above a first surface of the portable wireless device in a vertical direction. A portable wireless device, wherein an antenna is provided on a second surface facing the first surface.