JPH09307326A - Contactless antenna system - Google Patents

Contactless antenna system

Info

Publication number
JPH09307326A
JPH09307326A JP11903796A JP11903796A JPH09307326A JP H09307326 A JPH09307326 A JP H09307326A JP 11903796 A JP11903796 A JP 11903796A JP 11903796 A JP11903796 A JP 11903796A JP H09307326 A JPH09307326 A JP H09307326A
Authority
JP
Japan
Prior art keywords
dielectric resonator
antenna element
antenna
resonator
contact type
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
Application number
JP11903796A
Other languages
Japanese (ja)
Inventor
Yoshitaka Murase
▲よし▼孝 村瀬
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11903796A priority Critical patent/JPH09307326A/en
Publication of JPH09307326A publication Critical patent/JPH09307326A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To reduce the loss due to spatial coupling and to attain efficient radiation or reception of a radio wave by configuring the contactless antenna with a dielectric cylindrical resonator having a hollow in a direction perpendicular to a radial direction, an antenna element inserted to the hollow, and a lead wire at the outer side of the resonator and connected electrically to a transmission reception circuit. SOLUTION: The contactless retractable antenna system used for a portable radio equipment is made up of a dielectric resonator 1, a lead wire 7, and an antenna element 2. The dielectric resonator 1 has a hollow part 1a in a direction perpendicularly to a radial direction. The lead wire 7 is provided to an outer side of the dielectric resonator 1 and connected electrically to a transmission reception circuit 3. The antenna element 2 is inserted into the hollow part 1a of the dielectric resonator 1. The transmission reception of a radio wave is conducted by spatial coupling between the dielectric resonator 1 and the antenna element 2.

Description

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

【0001】[0001]

【発明の属する技術分野】この発明は、携帯電話機など
の携帯無線装置に用いられる非接触式アンテナ装置に関
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact type antenna device used in a mobile wireless device such as a mobile phone.

【0002】[0002]

【従来の技術】図3は、従来の非接触式伸縮アンテナを
示す斜視図である。図において、携帯無線装置4は、送
受信回路3と、これに電気的に接続されたストリップラ
イン5と、このストリップライン5に非接触で伸縮する
アンテナエレメント2を有する。
2. Description of the Related Art FIG. 3 is a perspective view showing a conventional non-contact type telescopic antenna. In the figure, a portable wireless device 4 has a transmission / reception circuit 3, a strip line 5 electrically connected to the transmission / reception circuit 3, and an antenna element 2 that expands and contracts without contact with the strip line 5.

【0003】次に動作について説明する。電波を送信す
るときは、送受信回路3から電波がストリップライン5
に供給され、アンテナエレメント2とストリップライン
5との間で空間結合することにより、アンテナエレメン
ト2から空間に電波を発射することができる。
Next, the operation will be described. When transmitting the radio wave, the radio wave is transmitted from the transmission / reception circuit 3 to the strip line 5
Are supplied to the antenna element 2 and are spatially coupled between the antenna element 2 and the strip line 5, so that a radio wave can be emitted from the antenna element 2 into the space.

【0004】電波を受信するときは、空間からアンテナ
エレメント2に電波を受け、アンテナエレメント2とス
トリップライン5の間で空間結合することにより、受信
された電波が送受信回路3へ供給される。
When receiving a radio wave, the antenna element 2 receives the radio wave from the space, and the antenna element 2 and the strip line 5 are spatially coupled to each other, so that the received radio wave is supplied to the transmission / reception circuit 3.

【0005】[0005]

【発明が解決しようとする課題】従来の非接触式伸縮ア
ンテナは、以上のように構成されているので、ストリッ
プライン5とアンテナエレメント2との空間での結合以
外の方向に対しても電波を放射したり、周囲からのノイ
ズを拾うことなどの問題点があった。
Since the conventional non-contact type telescopic antenna is constructed as described above, the radio wave is emitted even in the directions other than the coupling of the strip line 5 and the antenna element 2 in the space. There were problems such as radiating and picking up noise from the surroundings.

【0006】この発明は上記のような問題点を解消する
ためになされたもので、アンテナエレメントとストリッ
プラインとの間での空間結合を強めることができるとと
もに、不要な方向に対して電波を放射することがなく、
周囲のノイズを拾うことがない非接触式アンテナ装置を
得ることを目的とする。
The present invention has been made to solve the above-mentioned problems, and can enhance the spatial coupling between the antenna element and the strip line and radiate radio waves in unnecessary directions. Without doing
An object is to obtain a non-contact type antenna device that does not pick up ambient noise.

【0007】[0007]

【課題を解決するための手段】請求項1の発明に係る非
接触式アンテナ装置は、半径方向に垂直な方向に中空部
を有する円筒形の誘電体共振器と、誘電体共振器の外面
に設けられ、送受信回路と電気的に接続された導体部
と、誘電体共振器の中空部に挿通されるアンテナエレメ
ントとを備えたことを特徴とする。
A non-contact type antenna device according to the invention of claim 1 has a cylindrical dielectric resonator having a hollow portion in a direction perpendicular to a radial direction, and an outer surface of the dielectric resonator. It is characterized in that it is provided with a conductor portion provided and electrically connected to the transmission / reception circuit, and an antenna element inserted into the hollow portion of the dielectric resonator.

【0008】請求項2の発明に係る非接触式アンテナ装
置は、請求項1記載の非接触式アンテナ装置において、
導体部は半径方向に垂直な方向に長く形成されたことを
特徴とする。
A non-contact type antenna device according to a second aspect of the present invention is the non-contact type antenna device according to the first aspect,
The conductor portion is characterized in that it is formed long in the direction perpendicular to the radial direction.

【0009】請求項3の発明に係る非接触式アンテナ装
置は、請求項1記載の非接触式アンテナ装置において、
誘電体共振器の外側を金属の膜で被い、金属の膜を導体
部としたことを特徴とする。
A non-contact type antenna device according to a third aspect of the present invention is the non-contact type antenna device according to the first aspect,
It is characterized in that the outside of the dielectric resonator is covered with a metal film, and the metal film serves as a conductor portion.

【0010】[0010]

【発明の実施の形態】BEST MODE FOR CARRYING OUT THE INVENTION

実施の形態1.以下、この発明の実施の形態1を図につ
いて説明する。図1はこの発明の実施の形態1による非
接触伸縮アンテナの構成図である。図において、1は半
径方向と直角な方向に中空部1aを有する円筒形の誘電
体共振器、2は前記中空部1aに挿通された伸縮自在な
アンテナエレメント、3は送受信回路で、前記誘電体共
振器1の外面に設けられた半径方向に垂直な方向に長い
導線7に電気的に接続されている。4はこれらの構成要
素が収納された携帯無線装置である。
Embodiment 1. Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is a configuration diagram of a non-contact telescopic antenna according to Embodiment 1 of the present invention. In the figure, 1 is a cylindrical dielectric resonator having a hollow portion 1a in a direction perpendicular to the radial direction, 2 is an extendable antenna element inserted in the hollow portion 1a, 3 is a transmitting / receiving circuit, and the dielectric material is It is electrically connected to a long conductor wire 7 provided on the outer surface of the resonator 1 in a direction perpendicular to the radial direction. Reference numeral 4 denotes a portable wireless device that accommodates these components.

【0011】次に動作を説明する。電波を送信するとき
は、送受信回路3から電波が導線7を介して誘電体共振
器1に供給され、アンテナエレメント2と誘電体共振器
1との間で空間結合することにより、アンテナエレメン
ト2から空間に電波を発射することができる。
Next, the operation will be described. When transmitting a radio wave, the radio wave is supplied from the transmission / reception circuit 3 to the dielectric resonator 1 through the lead wire 7, and the antenna element 2 and the dielectric resonator 1 are spatially coupled to each other so that the antenna element 2 can Radio waves can be emitted into space.

【0012】電波を受信するときは、空間からアンテナ
エレメント2が電波を受け、アンテナエレメント2と誘
電体共振器1の間で空間結合することにより、受信され
た電波が導線7より送受信回路3へ供給される。
When receiving a radio wave, the antenna element 2 receives the radio wave from the space, and the antenna element 2 and the dielectric resonator 1 are spatially coupled, so that the received radio wave is transmitted from the conductor 7 to the transmission / reception circuit 3. Supplied.

【0013】この時に使用する誘電体共振器1は、結合
度が高いものであり、さらに円筒形の誘電体共振器1を
使用することにより、結合が密となり、送受信回路3と
アンテナエレメント2との間で見たとき効率が良く電波
エネルギーを供給することができる。これにより、エネ
ルギー伝達時の損失を少なくすることができる。
The dielectric resonator 1 used at this time has a high degree of coupling. Further, by using the cylindrical dielectric resonator 1, the coupling becomes dense and the transmitting / receiving circuit 3 and the antenna element 2 are connected. The radio energy can be efficiently supplied when viewed between the two. As a result, it is possible to reduce the loss during energy transmission.

【0014】実施の形態2.以下、この発明の実施の形
態2を図について説明する。図2はこの発明の実施の形
態2による非接触伸縮アンテナの構成図である。上記実
施の形態1では円筒形の誘電体共振器1の外面に導線7
を設けたものについて説明したが、図2に示すように、
円筒形の誘電体共振器1の外側を金属の膜6で被っても
よく、上記実施の形態1よりもシールド効果が期待でき
る。
Embodiment 2 FIG. Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. 2 is a configuration diagram of a non-contact telescopic antenna according to Embodiment 2 of the present invention. In the first embodiment, the conductor 7 is formed on the outer surface of the cylindrical dielectric resonator 1.
Although the one provided with is described, as shown in FIG.
The outer side of the cylindrical dielectric resonator 1 may be covered with the metal film 6, and the shield effect can be expected more than in the first embodiment.

【0015】つまり、シールド効果により円筒の外側へ
の電磁界がしゃ断され、円筒内部のみ電磁界の分布が存
在することになる。この場合、誘電体共振器1とアンテ
ナエレメント2との間のみの空間結合とすることができ
る。
That is, the electromagnetic field to the outside of the cylinder is cut off by the shield effect, and the distribution of the electromagnetic field exists only inside the cylinder. In this case, it is possible to achieve spatial coupling only between the dielectric resonator 1 and the antenna element 2.

【0016】ここでの目的は、送信時にアンテナエレメ
ント2以外への不要な放射を防ぐことができ、受信時に
はアンテナエレメント2以外からのノイズの受信を防ぐ
ことである。すなわち、シールドの効果がある。
The purpose here is to prevent unnecessary radiation to other than the antenna element 2 at the time of transmission, and to prevent noise from being received from other than the antenna element 2 at the time of reception. That is, there is a shield effect.

【0017】上記実施の形態では、誘電体共振器1の外
面に半径方向に垂直な方向に長い導線7を設けたもの、
及び誘電体共振器1の外側を金属の膜6で被ったものを
示したが、誘電体共振器1の外面に設ける導体はこれに
限られたものではなく、その他の形状のものでもよい。
In the above embodiment, the dielectric resonator 1 is provided with the long conducting wire 7 on the outer surface in the direction perpendicular to the radial direction,
Also, although the outer side of the dielectric resonator 1 is covered with the metal film 6, the conductor provided on the outer surface of the dielectric resonator 1 is not limited to this and may have another shape.

【0018】また、アンテナエレメント2は伸縮式のも
のを示したが、固定式のものでもよい。
Further, although the antenna element 2 is shown as a telescopic type, it may be a fixed type.

【0019】[0019]

【発明の効果】請求項1の発明に係る非接触式アンテナ
装置は、半径方向に垂直な方向に中空部を有する円筒形
の誘電体共振器と、誘電体共振器の外面に設けられ、送
受信回路と電気的に接続された導体部と、誘電体共振器
の中空部に挿通されるアンテナエレメントとを備えたの
で、送受信回路とアンテナエレメントとの間で見たと
き、効率よく電磁エネルギーを供給することができる。
The non-contact type antenna device according to the invention of claim 1 is provided with a cylindrical dielectric resonator having a hollow portion in a direction perpendicular to the radial direction, and is provided on the outer surface of the dielectric resonator to transmit / receive signals. Equipped with a conductor electrically connected to the circuit and an antenna element inserted into the hollow portion of the dielectric resonator, the electromagnetic energy is efficiently supplied when viewed between the transmission / reception circuit and the antenna element. can do.

【0020】請求項2の発明に係る非接触式アンテナ装
置は、請求項1記載の非接触式アンテナ装置において、
導体部は半径方向に垂直な方向に長く形成されているの
で、さらに効率よく電磁エネルギーを供給することがで
きる。
A non-contact type antenna device according to a second aspect of the present invention is the non-contact type antenna device according to the first aspect,
Since the conductor portion is formed long in the direction perpendicular to the radial direction, the electromagnetic energy can be supplied more efficiently.

【0021】請求項3の発明に係る非接触式アンテナ装
置は、請求項1記載の非接触式アンテナ装置において、
誘電体共振器の外側を金属の膜で被い、金属の膜を導体
部としたので、送信時にアンテナエレメント以外への不
要な放射を防ぐことができ、受信時にはアンテナエレメ
ント以外からのノイズの受信を防ぐことができる。
A non-contact type antenna device according to a third aspect of the present invention is the non-contact type antenna device according to the first aspect,
Since the outside of the dielectric resonator is covered with a metal film and the metal film is used as a conductor, unnecessary radiation to other than the antenna element can be prevented during transmission, and noise from other than the antenna element during reception can be received. Can be prevented.

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

【図1】 この発明の実施の形態1による非接触伸縮ア
ンテナの構成図である。
FIG. 1 is a configuration diagram of a non-contact telescopic antenna according to a first embodiment of the present invention.

【図2】 この発明の実施の形態2による非接触伸縮ア
ンテナの構成図である。
FIG. 2 is a configuration diagram of a non-contact telescopic antenna according to Embodiment 2 of the present invention.

【図3】 従来の非接触式伸縮アンテナを示す斜視図で
ある。
FIG. 3 is a perspective view showing a conventional non-contact type telescopic antenna.

【符号の説明】[Explanation of symbols]

1 誘電体共振器、2 アンテナエレメント、3 送受
信回路、4 携帯無線装置、5 ストリップライン、6
金属の膜、7 導線。
1 Dielectric Resonator, 2 Antenna Element, 3 Transmitter / Receiver Circuit, 4 Portable Radio Device, 5 Stripline, 6
Metal film, 7 conductors.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 半径方向に垂直な方向に中空部を有する
円筒形の誘電体共振器と、 この誘電体共振器の外面に設けられ、送受信回路と電気
的に接続された導体部と、 前記誘電体共振器の中空部に挿通されるアンテナエレメ
ントと、を備えたことを特徴とする非接触式アンテナ装
置。
1. A cylindrical dielectric resonator having a hollow portion in a direction perpendicular to a radial direction, a conductor portion provided on an outer surface of the dielectric resonator and electrically connected to a transmission / reception circuit, A non-contact type antenna device comprising: an antenna element that is inserted into a hollow portion of a dielectric resonator.
【請求項2】 導体部は半径方向に垂直な方向に長く形
成されたことを特徴とする請求項1記載の非接触式アン
テナ装置。
2. The non-contact type antenna device according to claim 1, wherein the conductor portion is formed to be long in a direction perpendicular to the radial direction.
【請求項3】 誘電体共振器の外側を金属の膜で被い、
この金属の膜を導体部としたことを特徴とする請求項1
記載の非接触式アンテナ装置。
3. A metal film covers the outside of the dielectric resonator,
The metal film is used as a conductor portion.
The non-contact type antenna device described.
JP11903796A 1996-05-14 1996-05-14 Contactless antenna system Pending JPH09307326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11903796A JPH09307326A (en) 1996-05-14 1996-05-14 Contactless antenna system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11903796A JPH09307326A (en) 1996-05-14 1996-05-14 Contactless antenna system

Publications (1)

Publication Number Publication Date
JPH09307326A true JPH09307326A (en) 1997-11-28

Family

ID=14751402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11903796A Pending JPH09307326A (en) 1996-05-14 1996-05-14 Contactless antenna system

Country Status (1)

Country Link
JP (1) JPH09307326A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001001518A1 (en) * 1999-06-29 2001-01-04 Mitsubishi Denki Kabushiki Kaisha Antenna device
KR100451909B1 (en) * 2001-06-27 2004-10-08 유병훈 Antenna for portable wireless communication apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001001518A1 (en) * 1999-06-29 2001-01-04 Mitsubishi Denki Kabushiki Kaisha Antenna device
US6172656B1 (en) 1999-06-29 2001-01-09 Mitsubishi Denki Kabushiki Kaisha Antenna device
KR100451909B1 (en) * 2001-06-27 2004-10-08 유병훈 Antenna for portable wireless communication apparatus

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