JPH09232839A - Portable radio communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an excellent radiation characteristic even if an antenna is arbitrarily turned and to improve the operability by a user, in a portable radio communication equipment having the antenna outside the main body. SOLUTION: The antenna formed by a bar-shaped structure (5) in which the one ends of a dipole antenna composed of each first bar-shaped conductor (2) of an electric length of about 1/2 wavelengths of a use frequency and a dipole antenna composed of a second bar-shaped conductor (3) are proximately arranged, the antennas are insulated by a dielectric and the antennas are linearly arranged is freely rotatably supported with the boss (4) which is vertically arranged on the external side surface of a main body (1) as a center axis.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless communication device in which an antenna rotatably supported outside the main body has good characteristics even under various usage conditions.

[0002]

2. Description of the Related Art Conventionally, as a portable radio communication device, there is one disclosed in, for example, Japanese Patent Application Laid-Open No. 5-50816.
FIG. 25 is a perspective view of the portable radio communication device main body from the front direction, and FIG. 26 is a perspective view from the back direction thereof. In the figure, 36 is a main body of the portable wireless communication device, 37 is an antenna element, and 38 is a boss.

The antenna element 37 is rotatably mounted around a boss 38, and as shown in the drawing, the main body 36.
It is housed in the stepped portion of the portable wireless communication device body 36 by rotating 180 ° from the position where it is planted from the upper end surface of the device. Then, at the position shown in the figure and the position rotated 90 ° from that position, it is lightly fixed by clicking and used at that position. Further, as shown in FIG. 27, if the antenna element 37 is rotated by 90 °, the antenna element 38 will be substantially vertical to the ground even if the main body 36 is laterally fixed to the waist. In this case, even if the user bends his / her waist, the main body 36 does not hit the human body, and the polarization plane can be aligned with the partner station.

[0004]

However, in the conventional portable radio communication device, the main body 36 is formed of a metal main body, and when the antenna element 37 is housed in the stepped portion of the main body 36, the radiation characteristic of the antenna element 37 is obtained. Is deteriorated. Further, when the main body 36 is placed on a desk, it is necessary to erect the main body 36 in order to align the direction of the antenna element 37 with the polarization plane of the partner station, which is disadvantageous in that the main body 36 becomes unstable. Further, when placed horizontally, the display is difficult to see unless the user is directly facing the display. Further, if the antenna length is ¼ wavelength, the current induced by the antenna on the main body becomes large, and there is a drawback that the characteristics of the antenna are deteriorated.

The present invention has been made in order to solve the above problems, and it is possible to obtain good radiation characteristics even if the antenna is arbitrarily rotated, and at the same time, to improve the usability for the user. Is to provide.

[0006]

In order to solve the above-mentioned problems, in a portable wireless communication device according to the present invention, in a portable wireless communication device having an antenna on the outside of the main body, an electric power of about ½ wavelength of each operating frequency is used. One end of a long dipole antenna made of a first rod-shaped conductor and one end of a dipole antenna made of a second rod-shaped conductor are brought close to each other to form a rod-shaped structure in which they are linearly arranged by insulating with a dielectric, and the rod-shaped structure An object is rotatably supported by a boss vertically arranged on the outer surface of the main body as a central axis, and each of the first rod-shaped conductor and the second rod-shaped conductor is fed through the central axis to form an antenna. And a first use state in which the second rod-shaped conductor stands upright with respect to the main body at a storage position in which the entire first rod-shaped conductor is close to the main body, and the antenna is 90 ° with respect to the first use state. Times When the main body is laid horizontally after being rolled
The second usage state in which the rod-shaped conductor of is standing up against the main body,
A third rod in which the first rod-shaped conductor stands upright with respect to the main body at a storage position in which the entire second rod-shaped conductor is close to the main body when the antenna is rotated 90 ° with respect to the second use state and the main body is placed vertically. And the state of use.

In a portable radio communication device according to the next invention, the second rod-shaped conductor is bent in a meandering shape.

Furthermore, in a portable radio communication device according to the next invention, the first rod-shaped conductor and the second rod-shaped conductor are bent in a meandering shape.

Further, in a portable radio communication device according to the next invention, the second rod-shaped conductor is bent in a helical shape.

In a portable radio communication device according to the next invention, the first rod-shaped conductor and the second rod-shaped conductor are bent in a helical shape.

Further, in a portable radio communication device according to the next invention, a plate-shaped conductor is arranged on the side opposite to the end of the second bar-shaped conductor in the vicinity of the boss so that the second bar-shaped conductor penetrates.

Further, a portable radio communication device according to the next invention is one in which a dielectric having a high dielectric constant is loaded around the second rod-shaped conductor.

Further, in a portable radio communication device according to the next invention, the axis of rotation of the rod-shaped structure is slightly tilted in a plane parallel to the minimum outer surface of the main body, and symmetrically arranged in the same plane on which the boss is attached. Two bosses are provided, and a rotatable support member is provided in a plane perpendicular to the second boss.

In addition to this, in the portable radio communication device according to the next invention, two rod-shaped conductors having a length of ½ of the wavelength at the operating frequency are used similarly to the rod-shaped structure with the second boss as the rotation axis. A second rod-shaped structure composed of a dipole antenna consisting of is rotatably supported.

[0015]

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

Embodiment 1 1 and 2 show the configuration of a first embodiment of a portable wireless communication device according to the present invention.
In the figure, 1 is the body of the portable wireless communication device, 2 and 3 are the first rod-shaped conductor and the second rod-shaped conductor having a length of about 1/2 wavelength at the used frequency, and 4 is the body 1 of the portable wireless communication device. It is a boss provided vertically on one side. The first rod-shaped conductor 2 and the second rod-shaped conductor 3 are close to each other so that one ends thereof are insulated from each other to form a rod-shaped structure 5. Rod-shaped structure 5
Is rotatably supported about the boss 4.

Next, the operation will be described. In FIG. 1, if the first rod-shaped conductor 2 and the second rod-shaped conductor 3 are fed from the main body 1 of the portable wireless communication device via the boss 4, the rod-shaped structure 5 has a total length of about 1 wavelength. As a result, the rod-shaped structure 5 has a minimum current amplitude in the vicinity of the boss 4, a maximum current at a position of half of each length, and a minimum at both ends, and each operates as a dipole antenna. Since the rod-shaped structure 5 is rotatably supported around the boss 4, it can be fixed at an arbitrary angle.

For example, as shown in FIG. 1, the main body 1 is arranged vertically and the rod-shaped structure 5 is at a fixed angle along the longitudinal direction of the main body 1, and the polarization plane of the dipole antenna is aligned with the polarization plane of the partner station. Even if the main body 1 is horizontal,
As shown in FIG. 2, by rotating 90 ° from the fixed angle in FIG. 1, the rod-shaped structure 5 can be made vertical and can be aligned with the polarization plane of the partner station.

Embodiment 2. 3 to 5, in which the same parts as in FIG. 1 are assigned the same reference numerals, show the configuration of the second embodiment of the portable wireless communication apparatus according to the present invention. In the figure, 6 is a second rod-shaped conductor bent in a meandering shape and having a length of about ½ wavelength at the used frequency. The first rod-shaped conductor 2 and the second rod-shaped conductor 6 are arranged close to each other so that one ends thereof are insulated from each other to form a rod-shaped structure 7. The rod-shaped structure 7 is rotatably supported around the boss 4.

Next, the operation will be described. Embodiment 1
Similarly, even if the main body 1 is tilted at an arbitrary angle around the boss 4, the polarization plane of the partner station can be matched. Further, since the antenna length can be shortened by bending in a meandering shape like the second rod-shaped conductor 6, the rod-shaped structure 7 is rotated 180 ° from the fixed angle shown in FIG. 3 to the fixed angle shown in FIG. At this time, the length of the second rod-shaped conductor 6 projecting from the main body 1 can be reduced, which does not hinder the carrying. Also, as shown in FIG. 5, the rod-shaped structure 7 can be made vertical even when the main body 1 is horizontal, and the polarization planes of the partner station can be aligned, as in the first embodiment.

Embodiment 3 6 and 7 in which parts corresponding to those in FIG. 1 are assigned the same reference numerals show the configuration of the third embodiment of the portable wireless communication apparatus according to the present invention. In the figure, 8,
Reference numerals 9 are a first rod-shaped conductor and a second rod-shaped conductor both of which are bent in a meandering shape and have a length of about 1/2 wavelength at the used frequency. One ends of the two rod-shaped conductors 8 and 9 are brought close to each other to insulate and form a rod-shaped structure 10. The rod-shaped structure 10 is rotatably supported around the boss 4.

Next, the operation will be described. Embodiment 1
Similarly, even if the main body 1 is tilted at an arbitrary angle around the boss 4, the polarization plane of the partner station can be matched. Here, since the two rod-shaped conductors 8 and 9 are bent in a meandering shape, the length of the rod-shaped structure 10 in the longitudinal direction is a physical length shorter than a half wavelength. Therefore, the antenna can be miniaturized. Similar to the first embodiment, as shown in FIG. 7, the rod-shaped structure 10 can be made vertical even when the main body 1 is horizontal, and the polarization planes of the partner station can be aligned.

Embodiment 4 8 to 10 in which parts corresponding to those in FIG. 1 are assigned the same reference numerals show the configuration of the fourth embodiment of the portable wireless communication device according to the present invention. In the figure, 1
Reference numeral 1 is a second rod-shaped conductor bent in a helical shape and having a length of about ½ wavelength at the used frequency. The first rod-shaped conductor 2 and the second rod-shaped conductor 11 are close to each other so that one ends thereof are insulated from each other to form a rod-shaped structure 12. The rod-shaped structure 12 is rotatably supported around the boss 4.

Next, the operation will be described. Embodiment 1
Similarly, even if the main body 1 is tilted at an arbitrary angle around the boss 4, the polarization plane of the partner station can be matched. Further, by bending like a second rod-shaped conductor 11 into a helical shape, the length of the rod-shaped structure 12 in the longitudinal direction is a physical length shorter than a half wavelength. Therefore, the antenna can be miniaturized.
Therefore, the rod-shaped structure 12 is 180 degrees from the fixed angle shown in FIG.
When rotated to a fixed angle shown in FIG. 9, the length of the second rod-shaped conductor 11 protruding from the main body 1 can be shortened, which does not hinder the carrying. Further, as shown in FIG. 10, even if the main body 1 is horizontal, the rod-shaped structure 12 can be made vertical and the polarization planes of the partner station can be aligned, as in the first embodiment.

Embodiment 5 FIG. 11 and 12 in which parts corresponding to those in FIG. 1 are assigned the same reference numerals show the configuration of Embodiment 5 of the portable wireless communication device according to the present invention. In the figure,
Reference numerals 13 and 14 are a first rod-shaped conductor and a second rod-shaped conductor, both of which are bent in a helical shape and have a length of about 1/2 wavelength at the used frequency. Two rod-shaped conductors 13, 14
And one end thereof are brought close to each other to insulate and form a rod-shaped structure 15. The rod-shaped structure 15 is rotatably supported around the boss 4.

Next, the operation will be described. Embodiment 1
Similarly, even if the main body 1 is tilted at an arbitrary angle around the boss 4, the polarization plane of the partner station can be matched. Here, since the two rod-shaped conductors 13 and 14 are bent in a helical shape, the rod-shaped structure 15 has a physical length in the longitudinal direction shorter than one wavelength. Therefore, the antenna can be miniaturized. Similar to the first embodiment, the rod-shaped structure 15 can be made vertical even if the main body 1 is horizontal as shown in FIG. 12, and the polarization planes of the partner station can be aligned.

Embodiment 6 FIG. 13 to 15 in which parts corresponding to those in FIG. 1 are assigned the same reference numerals show a configuration of a sixth embodiment of a portable wireless communication device according to the present invention. In the figure,
16 is a second rod-shaped conductor, 17 is a second rod-shaped conductor 3
Is a plate-shaped conductor provided so that the second rod-shaped conductor 16 penetrates through the end portion thereof. First rod-shaped conductor 2 and second rod-shaped conductor 16
Form the rod-shaped structure 18 with one ends thereof being close to each other so as to be insulated from each other. The rod-shaped structure 18 is rotatably supported around the boss 4.

Next, the operation will be described. Embodiment 1
Similarly, even if the main body 1 is tilted at an arbitrary angle around the boss 4, the polarization plane of the partner station can be matched. It is considered that if the tip of the antenna whose electrical length is ½ wavelength is modeled by a transmission line, it becomes an open end, and charges are accumulated. Therefore, since the plate-shaped conductor 17 is provided at the end of the second rod-shaped conductor 16 so that the second rod-shaped conductor 16 penetrates, the end has a structure in which the capacitance increases, so that the second rod-shaped conductor 16 has a large capacitance. Is a physical length shorter than 1/2 wavelength.

As a result, the length of the rod-shaped structure 17 in the longitudinal direction is a physical length shorter than a half wavelength, and the antenna can be miniaturized. Therefore, when the rod-shaped structure 18 is rotated 180 ° from the fixed angle shown in FIG. 13 to the fixed angle shown in FIG. 14, the length of the second rod-shaped conductor 16 protruding from the main body 1 can be reduced. , Does not interfere with carrying. Also, as shown in FIG. 15, the rod-shaped structure 18 can be made vertical even if the main body 1 is horizontal, and the polarization planes of the partner station can be aligned, as in the first embodiment.

Embodiment 7 16 to 18 in which parts corresponding to those in FIG. 1 are assigned the same reference numerals show the configuration of Embodiment 7 of the portable wireless communication device according to the present invention. In the figure,
Reference numeral 19 is a second rod-shaped conductor loaded with a high dielectric constant dielectric material 20 and having a length of about ½ wavelength at the used frequency. The first rod-shaped conductor 2 and the second rod-shaped conductor 19 are close to each other so that one ends thereof are insulated from each other to form a rod-shaped structure 21. The rod-shaped structure 21 is rotatably supported around the boss 4.

Next, the operation will be described. Embodiment 1
Similarly, even if the main body 1 is tilted at an arbitrary angle around the boss 4, the polarization plane of the partner station can be matched. Further, by covering the periphery with the dielectric 20 having a high dielectric constant like the second rod-shaped conductor 19, the physical length of the length in the longitudinal direction can be shortened by the wavelength shortening effect, and the rod-shaped structure 21 has the longitudinal direction. Is the physical length, which is shorter than half wavelength. Therefore, the antenna can be miniaturized. Therefore, the rod-shaped structure 21 is shown in FIG.
When the fixed angle shown in FIG. 6 is rotated by 180 ° to the fixed angle shown in FIG. 17, the length of the second rod-shaped conductor 19 protruding from the main body 1 can be reduced, which does not hinder the carrying. Further, as shown in FIG. 18, the rod-shaped structure 21 can be made vertical even if the main body 1 is horizontal, and the polarization planes of the partner station can be aligned, as in the first embodiment.

Embodiment 8 FIG. 19 to 21 in which parts corresponding to those in FIG. 1 are assigned the same reference numerals show the configuration of Embodiment 8 of the portable wireless communication device according to the present invention. In the figure,
Reference numeral 22 is a first rod-shaped conductor having a length of about ½ wavelength at the used frequency, 23 is a second rod-shaped conductor having a length of about ½ wavelength at the used frequency, and 4 is a portable radio communication device main body. It is a boss that is provided perpendicular to a surface 24 that is slightly inclined in a plane parallel to the smallest outer surface. The first conductor 22 and the second conductor 23 are arranged close to each other so that one ends thereof are insulated from each other to form a rod-shaped structure 25.
The rod-shaped structure 25 is rotatably supported around the boss 4. Further, second bosses 26 are provided symmetrically in the same plane on which the boss 4 is attached, and a rotatable support member 27 is provided in a plane perpendicular to the second boss.

Next, the operation will be described. Embodiment 1
Similarly, even if the main body 1 is tilted at an arbitrary angle around the boss 4, the polarization plane of the partner station can be matched. Second
The rod-shaped conductor 23 can shorten the physical length in the lengthwise direction as described above, and the rod-shaped structure 25 is made small so that the length in the lengthwise direction is the physical length and shorter than a half wavelength. When the rod-shaped structure 25 is rotated 180 ° from the fixed angle shown in FIG. 19 to the fixed angle shown in FIG. 20, the length of the second rod-shaped conductor 23 projecting from the main body 1 can be reduced, and the second rod-shaped conductor 23 can be easily carried. Doesn't get in the way. Further, as shown in FIG. 21, even if the main body 1 is horizontal, the rod-shaped structure 25 can be made vertical,
Similar to the first embodiment, the polarization planes of the partner station can be matched. Further, as shown in FIG. 21, when the main body 1 is placed horizontally and installed on a flat place such as a desk, the main body 1 is used by rotating the support member 27 so as to form an angle parallel to the rod-shaped structure 25. It has a gentle slope so that it can face the user, improving usability.

Embodiment 9 22 to 24, in which parts corresponding to those in FIG. 1 are assigned the same reference numerals, show the configuration of Embodiment 9 of the portable wireless communication device according to the present invention. In the figure, 28 and 29 are a first rod-shaped conductor and a second rod-shaped conductor each having a length of about ½ wavelength at a used frequency, and 4 is a plane parallel to the minimum outer surface of the portable wireless communication device body. It is a boss that is provided perpendicular to the surface 30 that is slightly inclined at. First rod-shaped conductor 28 and second rod-shaped conductor 2
9 are arranged close to each other so that one ends thereof are insulated from each other to form a rod-shaped structure 31. The rod-shaped structure 31 is rotatably supported around the boss 4. Further, the second bosses 32 are provided symmetrically in the same plane on which the bosses 4 are attached, and the third rod-shaped conductor and the fourth rod-shaped conductor 33 having a length of about 1/2 wavelength at the operating frequency, A second rod-shaped structure 35 composed of 34 is rotatably supported in a plane perpendicular to the second boss 32.

Next, the operation will be described. First and second
The rod-shaped structures 31 and 35 are dipole antennas fed from the main body 1 and constitute a diversity antenna system. Depending on the size of the mounting surface, space diversity is possible, and if the rotation angles are not matched,
Polarization diversity is also possible. And Embodiment 1
Similarly, even if the main body 1 is tilted at an arbitrary angle around the boss 4 or the boss 32, the polarization plane of the partner station can be matched.

The second rod-shaped conductor 29 and the fourth rod-shaped conductor 34
Can shorten the physical length in the longitudinal direction, and the rod-shaped structure 31 and the rod-shaped structure 35 are miniaturized so that the length in the longitudinal direction is a physical length shorter than a half-wavelength. The structure 31 and the rod-shaped structure 35 are shown in FIG.
23 is rotated by 180 ° from the fixed angle shown in FIG. 23, the length of the second rod-shaped conductor 29 and the fourth rod-shaped conductor 34 projecting from the main body 1 can be reduced, and when carried. Does not interfere with

Also, as shown in FIG. 24, the rod-shaped structures 31 and 35 can be made vertical even if the portable radio communication device main body 1 is made horizontal, and the polarization planes of the partner station can be aligned, as in the first embodiment. Is. Further, as shown in FIG. 24, the main body 1
When installed horizontally on a flat surface such as a desk, the main body 1 has a gradual inclination so as to face the user by rotating so as to be parallel to the rod-shaped structures 31, 35. It is possible to improve the usability.

[0038]

As described above, according to the present invention, the dipole antenna composed of the first rod-shaped conductor and the dipole antenna composed of the second rod-shaped conductor each having an electrical length of about 1/2 wavelength of the operating frequency are provided. The antenna, which is formed by a rod-shaped structure in which one end is in close proximity and is insulated by a dielectric and arranged in a straight line, is rotatably supported with a boss vertically arranged on the outer surface of the main body as a central axis. It is possible to realize a portable wireless communication device having an antenna having good characteristics in a use state.

Further, according to the next invention, by bending the second rod-shaped conductor in a meandering shape, the antenna length is shortened, and a portable radio communication device having an antenna having good characteristics in three usage states is provided. realizable.

Further, according to the next invention, by bending the first rod-shaped conductor and the second rod-shaped conductor in a meandering shape, the antenna length is further shortened, and the antenna having good characteristics in three usage states. It is possible to realize a portable wireless communication device having.

Further, according to the next invention, by bending the second rod-shaped conductor in a helical shape, the antenna length is shortened, and a portable radio communication device having an antenna having good characteristics in three usage states is provided. realizable.

According to the following invention, the first rod-shaped conductor and the second rod-shaped conductor are bent into a helical shape,
By shortening the antenna length, it is possible to realize a portable wireless communication device having an antenna having good characteristics in three usage states.

Further, according to the next invention, the antenna length is shortened by arranging the plate-shaped conductor on the opposite side of the end portion of the second rod-shaped conductor adjacent to the boss so that the second rod-shaped conductor penetrates. Thus, it is possible to realize a portable wireless communication device having an antenna having good characteristics in three usage states.

Furthermore, according to the next invention, by loading a dielectric material having a high dielectric constant around the second rod-shaped conductor, the antenna length can be shortened and an antenna having good characteristics in three usage states can be obtained. It is possible to realize a portable wireless communication device having the same.

Further, according to the next invention, the rotation axis of the rod-shaped structure is slightly inclined in a plane parallel to the minimum outer surface of the main body, and the second bosses are symmetrically arranged in the same plane where the boss is attached. By providing the rotatable support member in the plane perpendicular to the second boss, it is possible to realize a portable wireless communication device having an antenna having good characteristics in three usage states and to configure the antenna. By using one of the two rod-shaped conductors as a support member,
The visibility of the display unit of the portable wireless communication device can be improved, and the tilted body can improve the usability.

In addition to this, according to the following invention, a dipole antenna composed of two rod-shaped conductors having a length of ½ of the wavelength at the operating frequency as the rod-shaped structure with the second boss as the rotation axis. By rotatably supporting and providing the second rod-shaped structure configured as described above, it is possible to realize a portable wireless communication device having an antenna having good characteristics in three usage states and to configure the antenna.
By using one of the two rod-shaped conductors as the support member, the visibility of the display unit of the mobile wireless communication device can be improved, and the tilted body can improve the usability.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a configuration of a first embodiment of a portable wireless communication device according to the present invention.

FIG. 2 is a schematic perspective view showing a rod-shaped structure rotated by 90 ° in the portable wireless communication device of FIG.

FIG. 3 is a schematic perspective view showing the configuration of the second embodiment of the portable wireless communication device according to the present invention.

FIG. 4 is a schematic perspective view showing a rod-shaped structure rotated 180 ° in the portable wireless communication device of FIG.

5 is a schematic perspective view showing a rod-shaped structure rotated by 90 ° in the portable wireless communication device of FIG.

FIG. 6 is a schematic perspective view showing a configuration of a third embodiment of a portable wireless communication device according to the present invention.

7 is a schematic perspective view showing a rod-shaped structure rotated by 90 ° in the portable wireless communication device of FIG.

FIG. 8 is a schematic perspective view showing a configuration of a fourth embodiment of a portable wireless communication device according to the present invention.

9 is a schematic perspective view showing a rod-shaped structure rotated 180 ° in the portable wireless communication device of FIG.

10 is a schematic perspective view showing a rod-shaped structure rotated by 90 ° in the portable wireless communication device of FIG.

FIG. 11 is a schematic perspective view showing a configuration of a fifth embodiment of a portable wireless communication device according to the present invention.

12 is a schematic perspective view showing a rod-shaped structure rotated 90 ° in the portable wireless communication device of FIG. 11. FIG.

FIG. 13 is a schematic perspective view showing the configuration of a sixth embodiment of a portable wireless communication device according to the present invention.

FIG. 14 is a schematic perspective view showing the rod-shaped structure rotated 180 ° in the portable wireless communication device of FIG.

FIG. 15 is a schematic perspective view showing the rod-shaped structure rotated by 90 ° in the portable wireless communication device of FIG.

FIG. 16 is a schematic perspective view showing the configuration of a seventh embodiment of a portable wireless communication device according to the present invention.

FIG. 17 is a schematic perspective view showing the rod-shaped structure rotated 180 ° in the portable wireless communication device of FIG. 16.

FIG. 18 is a schematic perspective view showing the rod-shaped structure rotated by 90 ° in the portable wireless communication device of FIG. 16;

FIG. 19 is a schematic perspective view showing a configuration of an eighth embodiment of a portable wireless communication device according to the present invention.

20 is a schematic perspective view showing the rod-shaped structure rotated 180 ° in the portable wireless communication device of FIG.

FIG. 21 is a schematic perspective view showing the rod-shaped structure rotated by 90 ° in the portable wireless communication device of FIG.

22 is a schematic perspective view showing the configuration of Embodiment 9 of the portable wireless communication device according to the present invention. FIG.

FIG. 23 is a schematic perspective view showing the first and second rod-shaped structures rotated by 180 ° in the portable wireless communication device of FIG. 22.

24 is a schematic perspective view showing the first and second rod-shaped structures rotated by 90 ° in the portable wireless communication device of FIG. 22.

FIG. 25 is a schematic perspective view showing a conventional portable wireless communication device as seen obliquely from the front.

26 is a schematic perspective view showing the portable wireless communication device of FIG. 25 as seen from diagonally behind.

FIG. 27 is a schematic diagram used for explaining a usage state of the mobile wireless communication device in FIG. 25.

[Explanation of symbols]

1, 36 Main body of portable wireless communication device 2, 8, 13, 22, 28, 33 First rod-shaped conductor 3, 6, 9, 11, 14, 16, 19, 23, 29, 3
4 2nd rod-shaped conductor 4, 26, 32, 36 Boss 5, 7, 10, 12, 15, 18, 21, 25, 31,
35 bar-shaped structure 17 plate-shaped conductor 20 dielectrics 24, 30 mounting surface 27 support member 37 antenna element

Claims (9)

[Claims] 1. A portable radio communication device having an antenna outside the main body, wherein the dipole antenna is composed of a first rod-shaped conductor having an electrical length of about ½ wavelength of the operating frequency, and the dipole is composed of a second rod-shaped conductor. A rod-shaped structure is formed by arranging one end of the antenna close to the antenna and insulating it with a dielectric to form a linear structure, and the rod-shaped structure is rotatably supported with a boss vertically arranged on the outer surface of the main body as a central axis. Then, each of the first rod-shaped conductor and the second rod-shaped conductor is fed through the central axis to form the antenna, and the antenna has the main body placed vertically so that the entire first rod-shaped conductor is in the main body. In a storage position close to each other, the second rod-shaped conductor stands upright with respect to the main body, and the antenna is rotated 90 ° with respect to the first use state, and the main body is laid horizontally. The second use state in which the first rod-shaped conductor stands upright with respect to the main body, and the main body is placed vertically by rotating the antenna by 90 ° with respect to the second use state. A portable wireless communication device, comprising: a third usage state in which the first rod-shaped conductor stands upright with respect to the main body at a storage position where the entire rod-shaped conductor is close to the main body. 2. The portable wireless communication device according to claim 1, wherein the second rod-shaped conductor is bent in a meandering shape. 3. The portable wireless communication device according to claim 1, wherein the first rod-shaped conductor and the second rod-shaped conductor are bent in a meandering shape. 4. The portable wireless communication device according to claim 1, wherein the second rod-shaped conductor is bent in a helical shape. 5. The portable wireless communication device according to claim 1, wherein the first rod-shaped conductor and the second rod-shaped conductor are bent in a helical shape. 6. The plate-shaped conductor is arranged on the opposite side of the end portion of the second rod-shaped conductor adjacent to the boss so that the second rod-shaped conductor penetrates the plate-shaped conductor. Portable wireless communication device. 7. The portable wireless communication device according to claim 1, wherein a dielectric having a high dielectric constant is loaded around the second rod-shaped conductor. 8. The axis of rotation of the rod-shaped structure is slightly inclined in a plane parallel to the smallest outer surface of the main body, and second bosses are symmetrically provided in the same plane in which the boss is attached, The portable wireless communication device according to claim 1, wherein a rotatable support member is provided in a plane perpendicular to the second boss. 9. A second rod-shaped structure comprising a dipole antenna composed of two rod-shaped conductors having a length of 1/2 of the wavelength at the operating frequency as the rod-shaped structure with the second boss as a rotation axis. The portable wireless communication device according to claim 8, wherein the structure is rotatably supported and provided.