JPH01135129A - Antenna coupler - Google Patents
Antenna couplerInfo
- Publication number
- JPH01135129A JPH01135129A JP62293430A JP29343087A JPH01135129A JP H01135129 A JPH01135129 A JP H01135129A JP 62293430 A JP62293430 A JP 62293430A JP 29343087 A JP29343087 A JP 29343087A JP H01135129 A JPH01135129 A JP H01135129A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- portable radio
- coaxial cable
- coupler
- external antenna
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 18
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000005674 electromagnetic induction Effects 0.000 abstract description 3
- 239000012212 insulator Substances 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Transceivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Support Of Aerials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はアンテナカプラに係り、特に外部に装着された
外部アンテナと室内で使用される携帯型無線機とを電磁
的に結合するアンテナカプラに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an antenna coupler, and more particularly to an antenna coupler that electromagnetically couples an external antenna attached to the outside and a portable radio device used indoors. .
（従来の技術）
通常、無線機にはアンテナ用ＲＦ接続端子が設けられて
おり、離隔して固設されたアンテナからのケーブルをこ
の接続端子に接続することにより、アンテナから所望周
波数の高周波信号を抽出することが可能である。(Prior Art) Usually, a radio device is provided with an RF connection terminal for an antenna, and by connecting a cable from a distant and fixed antenna to this connection terminal, a high-frequency signal of a desired frequency is transmitted from the antenna. It is possible to extract
携帯型無線電話機（トランシーバ）等のいわゆるハンデ
ィ無線機又はポータプル無線機においては、ケーブルを
介することなく無線機自体にアンテナが取付けられ、使
用時にはアンテナが無線機外部に突出した構成になるの
が一般である。In so-called handy radios or portable radios such as portable radio telephones (transceivers), the antenna is usually attached to the radio itself without a cable, and the antenna protrudes outside the radio when in use. It is.
一方、近年の各種電子部品の小型化、高性能化に伴って
、無線機においても可能な限り小型・軽量化の実現が可
能となり、また機能性、取扱性、美感の上からもアンテ
ナを無線機内部に組み込んで一体化することが要望され
ている。アンテナが内蔵されるようになった結果、アン
テナ接続端子を有しない携帯型無線機も多くなっている
。On the other hand, with the miniaturization and higher performance of various electronic components in recent years, it has become possible to make radio equipment as small and lightweight as possible, and it has also become possible to make wireless antennas as compact and lightweight as possible from the standpoint of functionality, ease of handling, and aesthetics. There is a demand for it to be integrated into the interior of the aircraft. As antennas have become built-in, many portable wireless devices do not have antenna connection terminals.
（発明が解決しようとする問題点）
このような携帯型無線機の目的は、いうまでもなく屋内
、屋外を問わず自由に持ち運び可能である点と、任意の
場所において使用できる点に存する。しかし、導体によ
り大きく遮蔽された車両室内又はビル内等においてその
まま使用する場合には、受信感度が著しく低下するため
、使用可能な範囲がかなり制限されるという不具合が生
じる。(Problems to be Solved by the Invention) Needless to say, the purpose of such a portable radio device is to be able to carry it freely, whether indoors or outdoors, and to be able to use it at any location. However, if the device is used as it is in a vehicle interior or a building that is largely shielded by conductors, the receiving sensitivity is significantly reduced, resulting in a problem that the usable range is considerably limited.
ここで、アンテナ接続端子が設けられた従来のタイプの
無線機であれば、室内での使用においては外部アンテナ
から室内に引込んだ同軸ケーブルをこの接続端子に接続
して使用することが可能であるため、特に問題は無い。If you are using a conventional type of radio that is equipped with an antenna connection terminal, you can use it indoors by connecting a coaxial cable led indoors from the external antenna to this connection terminal. Therefore, there is no particular problem.
しかしながら、アンテナが無線機本体と一体的に内蔵さ
れた携帯型無線機の場合には、接続端子がないため、そ
のまま内蔵アンテナにより使用せざるを得す、良好な送
受信を行うことができないという欠点があった。However, in the case of a portable radio device whose antenna is integrated with the main body of the radio device, there is no connection terminal, so the built-in antenna must be used as is, and good transmission and reception cannot be performed. was there.
（発明の目的）
本発明は」１記従来の課題に鑑みてなされたものであり
、その目的はアンテナ接続端子を有しない携帯型無線機
と外部アンテナの同軸ケーブルの中心導体とを電磁的に
結合させることが可能なアンテナカプラを提供すること
にある。(Purpose of the Invention) The present invention has been made in view of the conventional problems mentioned in 1.The purpose of the present invention is to electromagnetically connect a portable radio device that does not have an antenna connection terminal and the center conductor of a coaxial cable of an external antenna. An object of the present invention is to provide an antenna coupler that can be coupled.
（発明の概要）
上記目的を達成するため、本発明のアンテナカプラは、
外部に装着された外部アンテナから室内に引込まれた同
軸ケーブルと室内で使用される携帯型無線機のアンテナ
との間に接続され、電磁誘導結合により前記外部アンテ
ナからの高周波信号を前記携帯型無線機に効率よく伝送
することを特徴とする。(Summary of the invention) In order to achieve the above object, the antenna coupler of the present invention has the following features:
A coaxial cable led indoors from an external antenna attached to the outside is connected to the antenna of a portable wireless device used indoors, and a high frequency signal from the external antenna is transmitted to the portable wireless device by electromagnetic induction coupling. It is characterized by efficient transmission to the machine.
以上のように構成される本発明によれば、アンテナ内蔵
携帯型無線機を室内で使用する場合、外部アンテナから
の引込み線である同軸ケーブルの中心導体にアンテナカ
プラを接続し、このアンテナカプラを携帯型無線機のア
ンテナに結合することによって容易に外部アンテナを利
用することが可能である。According to the present invention configured as described above, when a portable radio device with a built-in antenna is used indoors, an antenna coupler is connected to the center conductor of a coaxial cable that is a lead-in line from an external antenna; It is possible to easily utilize an external antenna by coupling it to the antenna of a portable radio.
従って、外部アンテナで送受信した高周波信号は、同軸
ケーブル及びアンテナカプラを介して円滑に無線機のア
ンテナに供給されるので、室内であっても極めて感度の
良好な無線伝送が可能となる。Therefore, the high frequency signals transmitted and received by the external antenna are smoothly supplied to the antenna of the wireless device via the coaxial cable and the antenna coupler, so that extremely sensitive wireless transmission is possible even indoors.
（実施例）
以下、本発明のアンテナカプラを添付図面に基いて詳細
に説明する。(Example) Hereinafter, the antenna coupler of the present invention will be explained in detail based on the accompanying drawings.
第１図には本発明に係るアンテナカプラを同軸ケーブル
の中心導体と携帯型無線機のアンテナとの間に接続した
全体構成を示す。FIG. 1 shows an overall configuration in which an antenna coupler according to the present invention is connected between a center conductor of a coaxial cable and an antenna of a portable radio device.
同図から明らかなように、外部アンテナ１０から導かれ
た同軸ケーブル１２の終端部に形成されたチ…１−クコ
イル１４の一端（即ちケーブルの中心導体）がアンテナ
カプラ１６の端子（図示せず）に接続されている。アン
テナカプラ１６は、その内部に電磁誘導結合用のコイル
状導体または棒状導体を備え、携帯型無線機１８のアン
テナ２０を貫通可能なように円筒状の絶縁体から成る外
套体で被覆形成されている。As is clear from the figure, one end of the chain coil 14 (i.e., the center conductor of the cable) formed at the terminal end of the coaxial cable 12 led from the external antenna 10 is connected to the terminal of the antenna coupler 16 (not shown). )It is connected to the. The antenna coupler 16 has a coil-shaped conductor or rod-shaped conductor for electromagnetic inductive coupling therein, and is covered with a jacket made of a cylindrical insulator so as to be able to pass through the antenna 20 of the portable radio device 18. There is.
従って、携帯型無線機を室内で使用する場合には、外部
アンテナ１０からの同軸ケーブルの中心導体を室内に配
設されたラジオ受信機との接続から切離し、アンテナカ
プラ１６に接続したあと、該カプラ内のコイル状導体の
軸線に、或は棒状導体に近接して平行に携帯型無線機の
アンテナ２０を電磁的に結合が可能なように嵌合して、
その基部で固定すれば良い。Therefore, when using a portable radio device indoors, disconnect the center conductor of the coaxial cable from the external antenna 10 from the radio receiver installed indoors, connect it to the antenna coupler 16, and then connect it to the antenna coupler 16. The antenna 20 of the portable radio is fitted on the axis of the coiled conductor in the coupler or close to and parallel to the rod-shaped conductor so as to enable electromagnetic coupling.
It should be fixed at its base.
このようにして、本発明によれば外部アンテナと携帯型
無線機とを極めて簡単１１つ容易に結合することができ
、外部アンテナを有効に活用して感度よく無線機の送受
信操作を室内から行うことができる。In this manner, according to the present invention, an external antenna and a portable radio can be extremely easily coupled, and the external antenna can be effectively used to perform sensitive transmitting and receiving operations of the radio from indoors. be able to.
第２図には本発明に係るアンテナカプラの第２の実施例
を示しである。FIG. 2 shows a second embodiment of the antenna coupler according to the present invention.
第２の実施例において特徴的なことは、同軸ケーブル１
２とカプラ１６との接続部近傍に、同軸ケーブルの外導
体に漏れる電流を抑制するためのシュベル１ヘツブ２２
を設けたことである。The characteristic feature of the second embodiment is that the coaxial cable 1
2 and the coupler 16, there is a Schwel 1 heb 22 for suppressing the current leaking to the outer conductor of the coaxial cable.
This is because we have established the following.
同図においてこのシュペルトップ２２は、同軸ケーブル
】２の外導体の終端部近傍即ちカプラ１６の基部に近接
してケーブル１２と同軸に配設されている。このことに
よって送受信イハ号が向上し、より優れた受信特性を得
ることが可能となる。In the figure, the super top 22 is disposed coaxially with the cable 12 near the terminal end of the outer conductor of the coaxial cable 2, that is, near the base of the coupler 16. This improves the transmission and reception I/H signal, making it possible to obtain better reception characteristics.
第３図には本発明に係るアンテナカプラの結合特性をグ
ラフで示しである。同図から明らかなように、周波数Ｆ
。（９００Ｍ Ｉ−（７，滑：）の±５％の範囲で結合
度が約−６ｄ １３程度に保持されており、本発明のア
ンテナカプラによれば極めて効率良くアンテナ送受信信
号を無線機に伝送可能であることが理解される。FIG. 3 is a graph showing the coupling characteristics of the antenna coupler according to the present invention. As is clear from the figure, the frequency F
. (The degree of coupling is maintained at approximately -6d13 in the range of ±5% of 900M I-(7, slip:). According to the antenna coupler of the present invention, the antenna transmission/reception signal can be transmitted to the radio device extremely efficiently. It is understood that this is possible.
（発明の効果）
以十−説明したように、本発明によれば、アンテナ接続
端子を持たない携帯型無線機のアンテナを本発明に係る
アンテナカプラを介して外部アンテナに容易に結合する
ことが可能であり、極めて優れた受信特性を得ることが
できる。(Effects of the Invention) As described above, according to the present invention, it is possible to easily couple the antenna of a portable radio device that does not have an antenna connection terminal to an external antenna via the antenna coupler according to the present invention. It is possible to obtain extremely excellent reception characteristics.
第１図は本発明に係るアンテナカプラを外部アンテナと
携帯型無線機との間に適用した状態を示す図、第２図は
本発明に係るアンテナカプラの第２実施例の説明図、第
３図は本発明に係るアンテナカプラの結合特性を示した
グラフである。
１０・・・外部アンテナ １２・・・同軸ケーブル １
４・・・チョークコイル
１６・・・アンテナカプラ １８・・・携帯型無線機
２０・・・アンテナ ２２・・・シュペルトップ
特許出願人 安展−Ｌ業株式会社FIG. 1 is a diagram showing a state in which the antenna coupler according to the present invention is applied between an external antenna and a portable radio device, FIG. 2 is an explanatory diagram of a second embodiment of the antenna coupler according to the present invention, and FIG. The figure is a graph showing the coupling characteristics of the antenna coupler according to the present invention. 10...External antenna 12...Coaxial cable 1
4... Choke coil 16... Antenna coupler 18... Portable radio device
20... Antenna 22... Super Top Patent Applicant Annobu-L-Gyo Co., Ltd.
Claims (4)
まれた同軸ケーブルと室内で使用される携帯型無線機の
アンテナとの間に接続され、電磁誘導結合により前記外
部アンテナからの高周波信号を前記携帯型無線機に伝送
することを特徴とするアンテナカプラ。(1) Connected between a coaxial cable drawn into the vehicle interior from an external antenna mounted on the outside and the antenna of a portable radio used indoors, and transmits high-frequency signals from the external antenna by electromagnetic inductive coupling. An antenna coupler configured to transmit data to the portable radio device.
いて、前記同軸ケーブルの外導体に漏れる電流を抑制す
るための装置がカプラ基部近傍に設けられていることを
特徴とするアンテナカプラ。(2) The antenna coupler according to claim 1, wherein a device for suppressing current leaking into the outer conductor of the coaxial cable is provided near the base of the coupler.
いて、前記同軸ケーブルの外導体に流れる電流を抑圧す
るための装置はチョークコイルであることを特徴とする
アンテナカプラ。(3) The antenna coupler according to claim 2, wherein the device for suppressing the current flowing in the outer conductor of the coaxial cable is a choke coil.
いて、前記同軸ケーブルの外導体に漏れる電流を抑圧す
るための装置はシュペルトップであることを特徴とする
アンテナカプラ。(4) The antenna coupler according to claim 2, wherein the device for suppressing current leaking into the outer conductor of the coaxial cable is a supertop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62293430A JPH01135129A (en) | 1987-11-19 | 1987-11-19 | Antenna coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62293430A JPH01135129A (en) | 1987-11-19 | 1987-11-19 | Antenna coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01135129A true JPH01135129A (en) | 1989-05-26 |
Family
ID=17794656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62293430A Pending JPH01135129A (en) | 1987-11-19 | 1987-11-19 | Antenna coupler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01135129A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301487A (en) * | 2017-07-24 | 2019-02-01 | 北京小米移动软件有限公司 | Electronic equipment and antenna |
-
1987
- 1987-11-19 JP JP62293430A patent/JPH01135129A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301487A (en) * | 2017-07-24 | 2019-02-01 | 北京小米移动软件有限公司 | Electronic equipment and antenna |
| CN109301487B (en) * | 2017-07-24 | 2021-02-09 | 北京小米移动软件有限公司 | Electronic device and antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5822705A (en) | Apparatus for connecting a radiotelephone to an external antenna | |
| US4868576A (en) | Extendable antenna for portable cellular telephones with ground radiator | |
| RU2143160C1 (en) | Balancer, radio communication device, and antenna assembly designing process | |
| US5668561A (en) | Antenna coupler | |
| US5440317A (en) | Antenna assembly for a portable transceiver | |
| JPH04287505A (en) | Small sized antenna for portable radio | |
| US6144346A (en) | Antenna arrangement | |
| JP2009100111A (en) | High-frequency electric field coupler, communication system, and communication apparatus | |
| MY124834A (en) | Antenna device and mobile communications apparatus including the device | |
| GB2304462A (en) | Antenna arrangement for transceiving two different signals | |
| WO1995007556A1 (en) | Aerial coupling means | |
| US6150994A (en) | Antenna for personal mobile communications or locating equipment | |
| EP3567673A1 (en) | Combination antenna | |
| EP0576531A1 (en) | An antenna construction with an extensible antenna element. | |
| CA2366582A1 (en) | Rf transformer with compensation transmission line | |
| JP2003508944A (en) | Long personal communication device | |
| JP2002185381A (en) | Radio repeater | |
| JP2705200B2 (en) | Common antenna device for vehicles | |
| JPH01135129A (en) | Antenna coupler | |
| CN218472280U (en) | Antenna device and mobile terminal | |
| US5920293A (en) | Radio frequency (RF) antenna coupler with an electrically extended ground plane | |
| CN214099895U (en) | Circular polarization two-in-one antenna for VU frequency band and skynet satellite communication | |
| CN211017405U (en) | Antenna matching circuit and terminal equipment | |
| WO2000046873A1 (en) | Wireless phone design for improving radiation performance | |
| JP2579095B2 (en) | Antenna device for mobile communication equipment |