JPH05308212A - Radio equipment - Google Patents

Radio equipment

Info

Publication number
JPH05308212A
JPH05308212A JP11246892A JP11246892A JPH05308212A JP H05308212 A JPH05308212 A JP H05308212A JP 11246892 A JP11246892 A JP 11246892A JP 11246892 A JP11246892 A JP 11246892A JP H05308212 A JPH05308212 A JP H05308212A
Authority
JP
Japan
Prior art keywords
antenna
external antenna
external
housing
internal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP11246892A
Other languages
Japanese (ja)
Inventor
Yutaka Nakamura
豊 中村
Noboru Koike
昇 小池
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP11246892A priority Critical patent/JPH05308212A/en
Publication of JPH05308212A publication Critical patent/JPH05308212A/en
Withdrawn legal-status Critical Current

Links

Abstract

PURPOSE:To eliminate the need for the changeover between an internal antenna and an external antenna and to reduce the length of the external antenna by connecting the internal antenna in series with the external antenna. CONSTITUTION:An external antenna 23 and an internal antenna 22 are connected in series via a spring contact 25. When the external antenna 23 is in use, the external antenna 23 is used by extracting the external antenna 23 at the outside of a case. In this case, since the external antenna 23 and the internal antenna 22 are connected in series, the length of the external antenna 23 is reduced by the length of the internal antenna 22. On the other hand, when the external antenna 23 is not in use, the external antenna 23 is contained in the case 21. In this case, only the internal antenna 22 functions as an antenna. Furthermore, since the length of the external antenna 23 is far shorter than a conventional external antenna, the containing space of the external antenna required in the case 21 is far smaller than a conventional container space.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は携帯電話等の無線機の改
良に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a wireless device such as a mobile phone.

【0002】[0002]

【従来の技術】図3に従来の携帯電話を示す。2. Description of the Related Art FIG. 3 shows a conventional mobile phone.

【0003】この携帯電話(無線機)の筐体1の内部に
は板状の内部アンテナ2が設けられており、筐体1の外
部には棒状の外部アンテナ3が設けられている。この外
部アンテナ3は筐体1にスライド自在に設けられてお
り、筐体1内に設けられた外部アンテナ給電部5とはバ
ネ状接点6を介して接続されている。そして、外部アン
テナ3を使用するときは、実線で示す如く、外部アンテ
ナ3を引き出し、筐体1内に収納するときは、一点鎖線
で示された位置まで外部アンテナ3をスライドさせる構
成となっている。
A plate-shaped internal antenna 2 is provided inside a casing 1 of this portable telephone (radio device), and a rod-shaped external antenna 3 is provided outside the casing 1. The external antenna 3 is slidably provided in the housing 1, and is connected to an external antenna feeding portion 5 provided in the housing 1 via a spring-shaped contact 6. When the external antenna 3 is used, the external antenna 3 is pulled out as shown by the solid line, and when it is housed in the housing 1, the external antenna 3 is slid to the position shown by the alternate long and short dash line. There is.

【0004】また、筐体1内には、スイッチング部8が
設けられており、外部アンテナ3が筐体外部に引き出さ
れている状態では、スイッチング部8により外部アンテ
ナ3の使用に切換えられ、外部アンテナ給電部5がアン
テナ共用器(DUP)10に接続される。また、外部ア
ンテナ2が筐体1内に収納された状態では、スイッチン
グ部8により内部アンテナ3の使用に切換えられ、内部
アンテナ給電部11がアンテナ共用器10に接続され
る。そして、アンテナ3で受信された電波は共用器10
で一定の周波数(受信周波数)のみの高周波電流に変換
されて受信部(RX)11に至る。また送信部(TX)
12から送信される高周波電流はDUP10を経て送信
周波数の高周波電流がアンテナ3又は5へ至る構成とな
っている。尚、EMIの防止のため、筐体1内部は、内
部アンテナ2の感度を損なわない程度に、シールド部材
で覆われている。
Further, a switching unit 8 is provided in the housing 1, and when the external antenna 3 is pulled out of the housing, the switching unit 8 switches to use the external antenna 3 and The antenna feeding unit 5 is connected to the antenna duplexer (DUP) 10. Further, when the external antenna 2 is housed in the housing 1, the switching unit 8 switches to use the internal antenna 3, and the internal antenna feeding unit 11 is connected to the antenna duplexer 10. The radio wave received by the antenna 3 is shared by the duplexer 10.
Is converted into a high frequency current having a constant frequency (reception frequency) and reaches the reception unit (RX) 11. Also the transmitter (TX)
The high frequency current transmitted from 12 passes through the DUP 10 and the high frequency current of the transmission frequency reaches the antenna 3 or 5. In order to prevent EMI, the inside of the housing 1 is covered with a shield member to the extent that the sensitivity of the internal antenna 2 is not impaired.

【0005】この従来の携帯電話によると、内部アンテ
ナ2と外部アンテナ3とを切換るスイッチング機構及び
回路を必要とするので、機器の機構、回路が複雑化し、
実装スペースも余分に必要となるという不具合があっ
た。
According to this conventional mobile phone, since a switching mechanism and a circuit for switching the internal antenna 2 and the external antenna 3 are required, the mechanism and circuit of the device are complicated,
There was a problem that extra mounting space was required.

【0006】また、外部アンテナ3として所定の感度を
得るため、外部アンテナ3の長さを所定寸法Lよりも短
くできないという不具合、及びこの長い外部アンテナ3
の収納スペースを筐体1内に確保せねばならないという
不具合があった。この場合に、外部アンテナを多段伸縮
形とすることも考えられるが、アンテナ自体の構造が複
雑になるという問題がある。
Further, in order to obtain a predetermined sensitivity as the external antenna 3, the length of the external antenna 3 cannot be made shorter than the predetermined dimension L, and this long external antenna 3
However, there is a problem that the storage space must be secured in the housing 1. In this case, it may be considered that the external antenna is a multi-stage expandable type, but there is a problem that the structure of the antenna itself becomes complicated.

【0007】[0007]

【発明が解決しようとする課題】上述の如く上記無線機
では、内部アンテナと外部アンテナとをスイッチング機
構及び回路で切換えていたので、機器の機構、回路が複
雑化し、実装スペースも余分に必要となるという不具合
があった。また、外部アンテナの長さを所定の長さより
も短くできないという不具合、さらには、この長い外部
アンテナを収納するスペースを筐体内に確保せねばなら
ないという不具合があった。
As described above, in the above radio device, the internal antenna and the external antenna are switched by the switching mechanism and the circuit, which complicates the mechanism and circuit of the device and requires extra mounting space. There was a problem that became. In addition, there is a problem that the length of the external antenna cannot be made shorter than a predetermined length, and further, there is a problem that a space for accommodating the long external antenna must be secured in the housing.

【0008】本発明はこのような従来の欠点を解決する
べくなされたものであり、内部アンテナと外部アンテナ
との切り替えを必要とせず、しかも外部アンテナを短く
することもできる無線機を提供することを目的とする。
The present invention has been made to solve the above-mentioned conventional drawbacks, and provides a radio device which does not require switching between an internal antenna and an external antenna, and can also shorten the external antenna. With the goal.

【0009】[0009]

【課題を解決するための手段】本発明の無線機では筐体
内部に設けられた内部アンテナと前記筐体外部に設けら
れた外部アンテナとが直列に接続された構成となってい
る。
In the radio device of the present invention, an internal antenna provided inside the housing and an external antenna provided outside the housing are connected in series.

【0010】また、外部アンテナは筐体内部に収納し得
る構成とすると良い。
The external antenna may be housed inside the housing.

【0011】[0011]

【作用】本発明では外部アンテナに内部アンテナが直列
に接続されているので、内部アンテナの分だけ外部アン
テナを短くできる。また、外部アンテナを筐体内に収納
し或いは筐体から取り外すことにより外部アンテナが機
能しない状態では、内部アンテナのみがアンテナとして
機能する。
In the present invention, since the internal antenna is connected in series to the external antenna, the external antenna can be shortened by the amount of the internal antenna. Further, when the external antenna does not function by housing the external antenna in the housing or removing the external antenna from the housing, only the internal antenna functions as the antenna.

【0012】[0012]

【実施例】以下、本発明の実施例を図1及び図2を参照
して詳述する。
Embodiments of the present invention will be described below in detail with reference to FIGS.

【0013】図1は第1の実施例を説明する図である。FIG. 1 is a diagram for explaining the first embodiment.

【0014】本例の携帯電話(無線機)の筐体21の内
部には棒状の内部アンテナ22が設けられており、筐体
21の外部には棒状の外部アンテナ23が設けられてい
る。
A rod-shaped internal antenna 22 is provided inside a casing 21 of the portable telephone (radio device) of this example, and a rod-shaped external antenna 23 is provided outside the casing 21.

【0015】外部アンテナ23は、筐体21に対してス
ライド自在に取付けられている。そして、一点鎖線で示
された位置まで外部アンテナ23をスライドさせ外部ア
ンテナ23を筐体21内に収納した状態では、外部アン
テナ23は各種回路を保護するシールド部材(図示せ
ず)で覆われた状態となり、アンテナとしては機能しな
い。また、外部アンテナ23を使用するときは、実線で
示すように、外部アンテナ23を筐体21から引き出
す。
The external antenna 23 is slidably attached to the housing 21. Then, in a state where the external antenna 23 is slid to the position shown by the alternate long and short dash line and the external antenna 23 is housed in the housing 21, the external antenna 23 is covered with a shield member (not shown) that protects various circuits. It becomes a state and does not function as an antenna. When using the external antenna 23, the external antenna 23 is pulled out from the housing 21 as indicated by the solid line.

【0016】内部アンテナ22は、携帯電話を操作者が
持ったときに操作者の手で覆われないように、筐体1の
上部側に内蔵されており、シールド部材は内部アンテナ
22を除けるようにして筐体21内に設けられている。
この内部アンテナ22の一端側にはバネ状接点25が外
部アンテナ23と接触する状態で設けられ、このバネ状
接点25を介して内部アンテナ22は外部アンテナ23
と直列に接続されている。また、内部アンテナ22の他
端側に位置する給電部26はアンテナ共用器(DUP)
27に接続されており、この共用器27には、従来例と
同様、受信部(RX)28及び送信部(TX)29が接
続されている。
The internal antenna 22 is built in the upper part of the housing 1 so that the operator does not cover the mobile phone with the operator's hand, and the shield member allows the internal antenna 22 to be removed. And is provided inside the housing 21.
A spring-like contact 25 is provided at one end of the internal antenna 22 so as to be in contact with the external antenna 23, and the internal antenna 22 is connected to the external antenna 23 via the spring-like contact 25.
Are connected in series. In addition, the power feeding unit 26 located on the other end side of the internal antenna 22 is an antenna duplexer (DUP).
The duplexer 27 is connected to a receiver (RX) 28 and a transmitter (TX) 29, as in the conventional example.

【0017】次に上記無線機の作用につき説明する。Next, the operation of the above radio will be described.

【0018】外部アンテナ23を使用する場合には、外
部アンテナ23を筐体21の外部へ引き出して使用す
る。この場合に外部アンテナ23と内部アンテナ22と
は直列に接続されているので内部アンテナ22の長さ分
だけ外部アンテナ23を短くすることができる。尚、本
例では外部アンテナ23の長さL1及び外部アンテナ22
の長さL2は共にλ/4(λ;波長)となっている。
When using the external antenna 23, the external antenna 23 is pulled out to the outside of the housing 21 for use. In this case, since the external antenna 23 and the internal antenna 22 are connected in series, the external antenna 23 can be shortened by the length of the internal antenna 22. In this example, the length L1 of the external antenna 23 and the external antenna 22
The lengths L2 of both are λ / 4 (λ; wavelength).

【0019】一方、外部アンテナ23を使用しないとき
は、外部アンテナ23を筐体21内に収納する。この場
合には内部アンテナ22のみがアンテナとして機能す
る。また、外部アンテナ23の長さは従来の外部アンテ
ナ3に比べ格段と短くなっているので、筐体21内に必
要とされる外部アンテナ収納スペースは従来の収納スペ
ースよりも格段と小さくて済む。
On the other hand, when the external antenna 23 is not used, the external antenna 23 is housed in the housing 21. In this case, only the internal antenna 22 functions as an antenna. Further, since the length of the external antenna 23 is significantly shorter than that of the conventional external antenna 3, the external antenna storage space required in the housing 21 can be significantly smaller than the conventional storage space.

【0020】尚、本例では、内部アンテナ22として棒
状のアンテナを用いているが、板状のアンテナとしても
良い。また、外部アンテナ23は筐体21内に収納可能
なスライド式としてあるが、外部アンテナをねじ等で筐
体21に着脱自在に取付けても良い。
Although a rod-shaped antenna is used as the internal antenna 22 in this example, a plate-shaped antenna may be used. The external antenna 23 is of a slide type that can be stored in the housing 21, but the external antenna may be detachably attached to the housing 21 with a screw or the like.

【0021】図2は本発明の第2の実施例を説明する図
である。
FIG. 2 is a diagram for explaining the second embodiment of the present invention.

【0022】本例では、外部アンテナ23Aは棒状アン
テナ部231とこの棒状アンテナ部231の先端に設け
られたヘリカルアンテナ部232とで構成されている。
尚、棒状アンテナ部231の長さL1、ヘリカルアンテ
ナ部232の実質長さ、及び内部アンテナL2の長さ
は、夫々、λ/4なっている。
In this example, the external antenna 23A is composed of a rod-shaped antenna portion 231 and a helical antenna portion 232 provided at the tip of the rod-shaped antenna portion 231.
The length L1 of the rod-shaped antenna portion 231, the substantial length of the helical antenna portion 232, and the length of the internal antenna L2 are λ / 4, respectively.

【0023】本例に依れば、図2に示す如く、外部アン
テナ23Aの棒状アンテナ部231を筐体21内に収納
した状態であっても、ヘリカルアンテナ部232と内部
アンテナ部22とが直列に接続された状態となっている
ので、アンテナ収納時の感度は第1の実施例の場合に比
べ良好となる。また、第1の実施例の場合よりも棒状ア
ンテナ部の長さを短くしても、第1の実施例と同様の感
度の外部アンテナを得ることができる。その他の構成、
作用、効果は第1の実施例と同様である。
According to this example, as shown in FIG. 2, even when the rod-shaped antenna portion 231 of the external antenna 23A is housed in the housing 21, the helical antenna portion 232 and the internal antenna portion 22 are connected in series. Therefore, the sensitivity when the antenna is housed is better than that in the first embodiment. Further, even if the length of the rod-shaped antenna portion is made shorter than that of the first embodiment, the external antenna having the same sensitivity as that of the first embodiment can be obtained. Other configurations,
The operation and effect are similar to those of the first embodiment.

【0024】[0024]

【発明の効果】以上説明したように本発明では、外部ア
ンテナに内部アンテナが直列に接続されているので、内
部アンテナの分だけ外部アンテナを短くできる。また、
外部アンテナを筐体内に収納し或いは筐体から取り外す
ことにより外部アンテナが機能しない状態では、内部ア
ンテナのみがアンテナとして機能するので、外部アンテ
ナと内部アンテナとの切換えも必要としない。また、外
部アンテナを従来よりも短くできるので、外部アンテナ
を筐体内に収納する構成とした場合に、筐体内に必要と
される外部アンテナ収納スペースは従来の収納スペース
よりも格段と小さくて済む。
As described above, in the present invention, since the internal antenna is connected in series to the external antenna, the external antenna can be shortened by the amount of the internal antenna. Also,
In a state where the external antenna does not function by housing the external antenna in the housing or removing the external antenna from the housing, only the internal antenna functions as an antenna, and therefore switching between the external antenna and the internal antenna is not necessary. Further, since the external antenna can be made shorter than the conventional one, when the external antenna is housed in the housing, the external antenna housing space required in the housing can be significantly smaller than the conventional housing space.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第1の実施例に係る無線機の説明図。FIG. 1 is an explanatory diagram of a wireless device according to a first embodiment of the present invention.

【図2】本発明の第2の実施例に係る無線機の説明図。FIG. 2 is an explanatory diagram of a wireless device according to a second embodiment of the present invention.

【図3】従来の無線機の説明図。FIG. 3 is an explanatory diagram of a conventional wireless device.

【符号の説明】[Explanation of symbols]

21…筐体 22…内部アンテナ 23…外部アンテナ 21 ... Housing 22 ... Internal antenna 23 ... External antenna

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 筐体の内部に設けられた内部アンテナと
前記筐体の外部に設けられた外部アンテナとが直列に接
続されていることを特徴とする無線機。
1. A radio device, wherein an internal antenna provided inside a housing and an external antenna provided outside the housing are connected in series.
【請求項2】 外部アンテナは筐体内部に収納可能であ
ることを特徴とする請求項1記載の無線機。
2. The radio device according to claim 1, wherein the external antenna can be housed inside the housing.
JP11246892A 1992-05-01 1992-05-01 Radio equipment Withdrawn JPH05308212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11246892A JPH05308212A (en) 1992-05-01 1992-05-01 Radio equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11246892A JPH05308212A (en) 1992-05-01 1992-05-01 Radio equipment

Publications (1)

Publication Number Publication Date
JPH05308212A true JPH05308212A (en) 1993-11-19

Family

ID=14587401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11246892A Withdrawn JPH05308212A (en) 1992-05-01 1992-05-01 Radio equipment

Country Status (1)

Country Link
JP (1) JPH05308212A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395843A (en) * 2002-11-29 2004-06-02 Motorola Inc Wireless subscriber communication unit and antenna arrangement therefor
JP2005051766A (en) * 2003-07-30 2005-02-24 Lg Electronics Inc Method for improving radiation gain of antenna in mobile communication terminal equipment
WO2006101178A1 (en) * 2005-03-23 2006-09-28 Matsushita Electric Industrial Co., Ltd. Mobile wireless device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395843A (en) * 2002-11-29 2004-06-02 Motorola Inc Wireless subscriber communication unit and antenna arrangement therefor
GB2395843B (en) * 2002-11-29 2006-04-26 Motorola Inc Wireless subscriber communication unit and antenna arrangement therefor
JP2005051766A (en) * 2003-07-30 2005-02-24 Lg Electronics Inc Method for improving radiation gain of antenna in mobile communication terminal equipment
US7668575B2 (en) 2003-07-30 2010-02-23 Lg Electronics Inc. System and method for obtaining radiation characteristics of built-in antenna in mobile communication terminal
WO2006101178A1 (en) * 2005-03-23 2006-09-28 Matsushita Electric Industrial Co., Ltd. Mobile wireless device

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Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 19990706