JPH07307607A - Antenna for portable telephone set - Google Patents

Abstract

PURPOSE:To reduce radio wave faults due to a heat part by separating an antenna from the head part of a human. CONSTITUTION:By forming a bent part 7 between the element part 6a and the supporting part 6b of this antenna 6, the antenna 6 is inclined for a prescribed angle theta towards the side of the back surface 1b of a case body 1 at the time of using the antenna. The antenna of this constitution can be separated from the head part H of the human at the time of use and thus, the radio wave faults due to the head part H are reduced and stable communication is made possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a transmitting / receiving antenna which is mounted on a handy type portable telephone and is used in a state of protruding upward from a casing of the portable telephone.

[0002]

2. Description of the Related Art FIG. 3 is a schematic side view of a mobile phone showing a configuration example of a conventional antenna mounted on a handy type mobile phone.

As shown in the figure, in a handy type mobile phone, a transmitter 2 and a receiver 3 are provided on a front surface 1a of a vertically long casing 1, and a rod type for transmission and reception is provided at an upper end of the casing 1. The antenna 50 is attached. The antenna 50 in this conventional example is extended straight upward from the housing 1 as shown in FIG. 3 when the antenna is used, that is, when the telephone is used, and is housed in the antenna housing hole 5 in the housing 1 when not in use. Is configured.

[0004]

However, in the conventional antenna 50 which is used in a state where it is straightly extended upward from the housing 1 as described above, as shown in FIG. The state is very close to the human head H applied to the. For this reason, the radio waves transmitted and received by the antenna 50 may be damaged by the human head H, which is a conductor, and may interfere with the call.

The present invention has been made in order to solve such a conventional problem, and an object thereof is to reduce the radio wave interference due to the head by separating the antenna from the human head. is there.

[0006]

In order to achieve the above object, in the antenna (6) of the mobile phone according to the present invention, a means for inclining toward the rear surface (1b) side of the housing (1) during use ( 7) is provided.

[0007]

By providing the above-mentioned tilting means (7), the antenna (6) is tilted toward the back surface (1b) side of the housing (1) and separated from the human head (H) when in use. You can Therefore, it is possible to reduce the radio interference caused by the head (H).

The reference numerals in parentheses refer to the drawings and do not limit the structure of the present invention.

[0009]

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

FIG. 1 is a diagram showing a configuration of an antenna according to the present invention mounted on a handy type portable telephone.
1A is a schematic side view of a mobile phone, and FIG. 1B is a partially enlarged view of an antenna. It should be noted that, in FIG. 1, components that are not different from the conventional example shown in FIG.

As shown in the figure, this antenna 6 is characterized in that it is provided with a means for inclining it toward the rear surface 1b of the housing 1 when in use. 5, an element portion 6a drawn out from 5,
A bent portion 7 is formed between the housing portion 5 and the supporting portion 6b, which is mostly left inside.

The bent portion 7 connects the element portion 6a and the supporting portion 6b with a shaft 7a, and also supports the supporting portion 6b.
The notch stopper 7b is formed in the antenna 6 so that the antenna 6 can be inclined toward the rear surface 1b of the housing 1 by a predetermined angle θ. The antenna 6 provided with the bent portion 7 can be housed in the antenna housing hole 5 together with the element portion 6a by erecting the element portion 6a with respect to the support portion 6b.

In the antenna 6 having the above-described structure, the element portion 6a together with the bent portion 7 are used when the antenna 6 is used.
Is completely pulled out and tilted toward the rear surface 1b side of the housing 1 by a predetermined angle θ. As a result, the antenna 6 is separated from the human head H, and the radio interference due to the head H is reduced.

As another example of the above-mentioned tilting means, as shown in the schematic side view of FIG. 2, the antenna 6 is made of a flexible material, and the antenna housing hole 5 is formed in a curved state. When the flexible antenna 6 is pulled out, the flexible antenna 6 may be inclined toward the rear surface 1b side of the housing 1 by a predetermined angle θ. Also in this case, the same effect as in the case of the bent portion 7 can be obtained.

[0015]

As described above, according to the antenna of the portable telephone of the present invention, when used, the antenna tilts toward the rear side of the housing and separates from the human head, so that the radio interference caused by the head. Is reduced and stable calls can be made.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an antenna according to the present invention mounted on a handy-type mobile phone, in which (a) is a schematic side view of the mobile phone and (b) is a partially enlarged view of the antenna.

FIG. 2 is a schematic side view showing another example of the tilting means of the antenna according to the present invention.

FIG. 3 is a schematic side view of a mobile phone showing a configuration example of a conventional antenna provided in a handy type mobile phone.

[Explanation of symbols]

 1 case 1a front 1b back 2 transmitter 3 receiver 6 antenna 7 bent part (tilting means)

Claims (1)

[Claims] 1. An antenna for transmission and reception, which is provided in a handy-type mobile phone having a handset in front of a casing and which is used in a state of protruding upward from the casing, wherein the casing is used when used. An antenna for a mobile phone, which is provided with a means for inclining toward the back side of the mobile phone.