JPH08162820A - Antenna system - Google Patents

Abstract

PURPOSE: To avoid deterioration in quality of a communication channel by mounting an antenna folded or retracted and expanded or extended to a folded or retracted microphone so as to avoid the antenna from being left unset in a telescopic state. CONSTITUTION: In the antenna system whose antenna 2 is provided in a portable electronic device having at least a folded or telescopic microphone 5, the antenna 2 folded or retracted and expanded or extended with the folded or telescopic microphone 5 is mounted to the microphone 5. Since the antenna 2 is arranged along an arm 6 of the microphone 5 arranged turnably in the antenna system is arranged, the arm 6 with the microphone 5 mounted thereto is turned in the case of communication or in a talking state and expanded from the accommodated position. Thus, the antenna 2 provided in parallel with the arm 6 is expanded without fail to obtain the antenna system for an electronic device not incurring deterioration in the communication channel quality.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerial device used for portable wireless electronic equipment and the like, and more particularly to an aerial device which can always deploy an aerial line during a call.

[0002]

2. Description of the Related Art FIG. 3 shows the configuration of an antenna device used in electronic equipment such as a portable radio communication device. FIG. 3A in the figure shows a front view at the time of communication, and FIG. 3B shows a front view at the time of carrying.

In FIG. 3A and FIG. 3B, reference numeral 1 denotes a casing of a portable radio communication device or the like, and a feeder line 4 drawn out from the inside of the casing 1 is connected to an upper end portion of a side surface of the casing. The antenna 2 configured to be connected to the antenna 2 via 3 is configured to be slidable with respect to the connection fitting 3.

In FIG. 3A, the antenna 2 is manually extended from the housing 1 for communication during communication, and when transmitting and receiving, the antenna 2 is housed in the housing 1 as shown in FIG. 3B. Is made. According to such a configuration, when carrying the case 1
Although it can be compactly configured within the size of the antenna, if the antenna is forgotten to extend as shown in FIG.
There is an adverse effect that the matching between the transmission circuit and the transmission circuit becomes incomplete, and the quality of the communication circuit deteriorates, the internal parts of the communication device deteriorate, and unnecessary electromagnetic waves radiate.

Further, as shown in FIG. 4, there is also known a portable radio communication device (for example, a mobile phone terminal CM-R111 manufactured by Sony) configured to fix the antenna 2 while always extending it.

FIGS. 4A to 4C show the structure of such an electronic device. FIG. 4A is a front view, FIG. 4B is a side view when carrying, and FIG. 4C is a side view when communicating.

In FIGS. 4A to 4C, the antenna 2 extends in a fixed state from the upper side surface of the housing 1, and the arm 6 rotatably pivoted to a bearing 8 arranged at the lower end of the side surface of the housing 1. The microphone 5 is provided at the tip of the microphone 5 and a stopper 7 for restricting a predetermined rotation position of the microphone 5. In the case of this example, since the storage type microphone 5 is provided, during communication, the arm 6 of the microphone in the storage state as shown in FIG. 4B is centered around the bearing 8 and one end of the arm 6 is provided with a stopper 7 as shown in FIG. 4C. Is rotated to a position where it contacts with the microphone 5, and a call is made toward the microphone 5.

In the electronic device having such a structure, the antenna 2 is always extended upward from the housing 1, so that the matching between the antenna 2 and the transmission circuit can always be maintained. Moreover, FIG.
In the configuration, since the antenna 2 can be folded, the electronic device can be compactly integrated.

[0009]

In the case of the configuration of FIGS. 3A and 3B described in the above-mentioned prior art, since the antenna 2 can be stored in the housing 1 when being carried, it is compact and easy to carry, but the extension of the antenna is possible. If the user forgets to do so, the quality of the communication line deteriorates, and in the case of the configurations shown in FIGS. 4A to 4C, the quality of the communication line does not deteriorate, but since the antenna is constantly extended, it only causes the trouble of making it difficult to carry. It was not a design constraint.

The present invention provides an antenna device in which the above-mentioned harmful effects are eliminated. The object of the present invention is to make sure that the antenna is always extended so that the communication line quality is deteriorated. The second object is to obtain an antenna device having a further improved radiation characteristic of the antenna.

[0011]

As shown in FIG. 1, an antenna apparatus of the present invention is an antenna apparatus in which an antenna 2 is provided in a portable electronic device having at least a foldable or retractable microphone 5. In the above, the antenna 5 is folded or shortened together with the foldable or telescopic microphone 5 and the antenna 2 which is expandable or extendable is attached to the microphone 5.

[0012]

In the antenna apparatus of the present invention, the antenna 2 is arranged along the arm of the microphone 5 which is rotatably arranged. Therefore, the microphone arm 6 to which the microphone 5 is mounted is always installed during communication or communication. Since the antenna is rotated and deployed from the storage position, the antenna installed in parallel with this microphone arm is also deployed without fail, and an antenna device for electronic equipment that is convenient for carrying communication or calls that does not cause deterioration of communication line quality. Can be obtained.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example in which the antenna apparatus of the present invention is used in a portable radio communication device will be described in detail below with reference to FIGS.
Incidentally, in the figure, portions corresponding to those of FIGS. 3 and 4 shown as the conventional configuration are denoted by the same reference numerals.

In FIG. 1, a bearing 8 is provided at a lower portion of a side plate portion inside a casing 1 of a portable radio communication device or the like, and one end of a pipe-shaped arm 6 is pivotally attached. A microphone 5 is arranged at the tip of the arm 6 and is connected to a microphone circuit arranged in the housing 1.

That is, the arm 6 for the microphone 5 is rotatably attached to the bearing 8 described above. A rotary shaft is provided at the lower end of the microphone arm 6 and the rotary shaft is rotatably fitted into the bearing 8. The arm 6 is formed in a pipe shape, and the microphone 5 is arranged at the tip thereof, and the lead from the microphone 5 is drawn into the housing 1 through the pipe and the rotation shaft.

In this example, the antenna 2 is arranged in parallel with the arm 6. The antenna 2 is fixed on the arm 6 by a predetermined fixing method such as adhesion or screwing. The power supply line 4 drawn out from the housing 1 is connected to the terminal end of the antenna 2, and a pin serving as a stopper 7 for restricting the rotation of the microphone arm 6 at a predetermined position is provided at the lower end of the side wall.

The above-described antenna apparatus of this example is shown in FIG.
As shown in FIGS. 1A and 1B, the arm 6 of the microphone 5 is folded along the side wall of the housing 1.

During a call, as shown in FIG. 1C, the microphone 5 and the arm 6 are indispensable for communication or a call, and the caller needs to bring the arm 5 around the bearing 8 in order to bring it near his / her mouth.
Is rotated to the stopper 7 locking position. Therefore, at this time, the antenna 2 is always fixed in parallel with the arm 6, so that the antenna 2 is rotated and deployed. Therefore, it is possible to eliminate the conventional harmful effects caused by not expanding and extending the antenna 2.

The configuration shown in FIG. 2 is different from the first antenna 2A which rotates together with the arm 6 of the microphone 5 which is rotatably arranged on the side wall of the housing 1, and the second antenna 2B within the height of the side wall. Is fixed and one of the feed lines 4 led out from the inside of the housing 1 is connected to the first antenna 2A and the other is connected to the second antenna 2B.

2A and 2B, when carrying out communication or talking from the time of carrying, the arm 6 of the microphone 5 is rotated counterclockwise around the bearing 8 as shown in FIG. The first antenna is expanded and extended by rotating it to the abutting position. In this case, the second antenna fixedly erected on the side wall of the housing 1 and the doglegs 2A and 2B having a V shape are formed. Therefore, a longer antenna can be realized as compared with the configuration shown in FIG. 1C, and an antenna device with improved radiation characteristics can be obtained.

Although the arm 6 of the microphone 5 is foldable in the above-described embodiment, this example is also applicable to an aerial device with a microphone configured to be arranged to extend and contract in the housing 1. is there.

Further, although the case where the antennas 2 and 2A are provided on the arm 6 of the microphone 5 has been described, it is obvious that the microphone arm 6 may be used also as the antenna 2 or 2A.

[0023]

According to the antenna apparatus of the present invention, the antenna and the microphone arm are provided side by side or shared, so that the microphone arm is always expanded or extended during a call, so that the antenna is not expanded or extended. It is possible to prevent the deterioration of the communication line quality that occurs and to make the housing compact, and to obtain an antenna device that is not restricted by design. Further, the device of FIG. 2 has a feature that an antenna device with improved radiation characteristics can be obtained.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of an antenna device of the present invention.

FIG. 2 is a configuration diagram showing another embodiment of the antenna device of the present invention.

FIG. 3 is a configuration diagram (I) of a conventional antenna device.

FIG. 4 is a configuration diagram (II) of a conventional antenna device.

[Explanation of symbols]

 1 housing 2, 2A, 2B antenna 3 connection metal fitting 4 feeding line 5 microphone 6 arm 7 stopper 8 bearing

Claims (2)

[Claims] 1. An antenna for providing a antenna to a portable electronic device having at least a foldable or extendable microphone, wherein the antenna is foldable or shortened together with the foldable or extendable microphone, and expandable or extendable. An antenna device, wherein the antenna is attached to the microphone. 2. A first antenna that is folded or shortened together with the folding or telescopic microphone and is expandable or extendable, and a second antenna attached to the portable electronic device housing. The antenna device according to claim 1, wherein the antenna device comprises: