JPH11136156A - Mobile object communication device - Google Patents
Mobile object communication deviceInfo
- Publication number
- JPH11136156A JPH11136156A JP9296078A JP29607897A JPH11136156A JP H11136156 A JPH11136156 A JP H11136156A JP 9296078 A JP9296078 A JP 9296078A JP 29607897 A JP29607897 A JP 29607897A JP H11136156 A JPH11136156 A JP H11136156A
- Authority
- JP
- Japan
- Prior art keywords
- radio wave
- communication device
- mobile communication
- human body
- chip 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.)
- Granted
Links
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 238000010295 mobile communication Methods 0.000 claims description 34
- 229910052763 palladium Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000000151 deposition Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 230000002411 adverse Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000000015 thermotherapy Methods 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Aerials With Secondary Devices (AREA)
- Support Of Aerials (AREA)
- Transceivers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、アンテナを内蔵し
た移動体通信機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication device having a built-in antenna.
【０００２】[0002]
【従来の技術】現在、トランシーバ、携帯用無線機、Ｐ
ＨＳ、携帯電話等に代表される移動体通信機は、情報伝
達手段として盛んに用いられている。移動体通信機とし
て一般的に用いられる携帯電話機は、図３（ａ）に示さ
れるように無指向性のホイップアンテナ３２を携帯電話
機３１の上部に突出して取り付け、該ホイップアンテナ
より電波３３の送受信を行っている。また、ＰＨＳのよ
うに高い周波数のものでは、内蔵プリント基板の端部に
ループアンテナを取り付け、アンテナを内蔵したものも
あるが、アンテナは無指向性である。その他の移動体通
信機も基本的に同等の構造を有している。2. Description of the Related Art Currently, transceivers, portable radios, P
2. Description of the Related Art Mobile communication devices typified by HS and mobile phones are widely used as information transmission means. As shown in FIG. 3A, a mobile phone generally used as a mobile communication device has an omnidirectional whip antenna 32 protrudingly mounted above the mobile phone 31 to transmit and receive radio waves 33 from the whip antenna. It is carried out. Some high-frequency devices such as PHS have a built-in antenna by attaching a loop antenna to the end of a built-in printed circuit board, but the antenna is non-directional. Other mobile communication devices also have basically the same structure.
【０００３】移動体通信機に用いられる前記ホイップア
ンテナは無指向性であるため、図３（ｂ）に示されるよ
うに人体３４にも電波３３が放射される。ここで、電波
３３は人体３４に悪影響を及ぼすとの報告がある。特に
高出力の移動体通信機は人体３４に与える影響が大きい
と言われている。[0003] Since the whip antenna used in the mobile communication device is non-directional, a radio wave 33 is also radiated to the human body 34 as shown in FIG. Here, there is a report that the radio wave 33 has an adverse effect on the human body 34. In particular, it is said that a high-power mobile communication device has a large effect on the human body 34.
【０００４】これらの移動体通信機は、温熱療法等に利
用される電波の熱的効果ほど、顕著な温度上昇は考えら
れないが、生体の機能や行動に変化が認められるとする
報告があり、電波の効果としては非熱的効果として前記
熱的効果と分離して考えられている。[0004] These mobile communication devices are not considered to have a remarkable temperature rise as much as the thermal effect of radio waves used for thermotherapy or the like, but there are reports that changes in the functions and behaviors of living bodies are recognized. The effect of radio waves is considered as a non-thermal effect separately from the thermal effect.
【０００５】このような問題を解決するための手段を講
じた移動体通信機が、特開平７ー１１１４１１号公報に
開示されている。これは、移動体通信機の内部にチップ
アンテナを内蔵し、人体方向の送信出力を減衰する手段
を設けたものである。具体的にはチップアンテナをプリ
ント基板に実装し、人体との間に配置される該プリント
基板にグランドパターンを設け、該グランドパターンの
シールド効果により人体方向の送信出力を減衰させるも
のである。A mobile communication device taking measures for solving such a problem is disclosed in Japanese Patent Application Laid-Open No. Hei 7-111411. This is one in which a chip antenna is built in the mobile communication device, and a means for attenuating the transmission output in the direction of the human body is provided. Specifically, a chip antenna is mounted on a printed circuit board, a ground pattern is provided on the printed circuit board disposed between the chip antenna and a human body, and the transmission output in the direction of the human body is attenuated by the shielding effect of the ground pattern.
【０００６】しかしながら、プリント基板には配線パタ
ーンとグランドパターンとが一般に設けられているた
め、プリント基板全面をグランドパターンにすることは
困難であり、プリント基板に設けられたグランドパター
ンのシールド効果のみでは漏れが生じ、人体方向への電
波送信出力の減衰は充分ではなく、人体への影響は依然
避けることができなかった。However, since a wiring pattern and a ground pattern are generally provided on a printed circuit board, it is difficult to make the entire surface of the printed circuit board a ground pattern, and the shielding effect of the ground pattern provided on the printed circuit board alone is not sufficient. Leakage occurred, attenuation of radio wave transmission output toward the human body was not sufficient, and the effect on the human body could not be avoided.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、このような
問題を解消するためになされたものであって、電波によ
る悪影響を人体に与えることの少ない移動体通信機を提
供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a mobile communication device in which radio waves do not adversely affect the human body. I do.
【０００８】[0008]
【課題を解決するための手段】本発明は上記の課題を解
決するためになされたものであり、以下の諸事項を特徴
とするものである。即ち、 （１）筐体中にチップアンテナを具備した移動体通信機
であって、前記チップアンテナから人体方向への電波放
射を遮断し、かつチップアンテナへ入力する電波を収束
強調する手段を設けたことを特徴とする移動体通信機で
ある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has the following features. (1) A mobile communication device including a chip antenna in a housing, wherein a means is provided for blocking radio wave radiation from the chip antenna toward a human body and for converging and emphasizing a radio wave input to the chip antenna. A mobile communication device characterized in that:
【０００９】（２）チップアンテナを内蔵する移動体通
信機であって、前記チップアンテナが設けられているプ
リント基板と人体との間に位置する筐体の少なくとも一
部分に、Ｃｕ，Ｎｉ，Ａｇ，Ａｕ，Ｐｄ又はこれらの合
金からなる電波反射層を設けたことを特徴とする（１）
記載の移動体通信機である。(2) A mobile communication device having a built-in chip antenna, wherein at least a part of a housing located between a printed circuit board provided with the chip antenna and a human body has Cu, Ni, Ag, (1) A radio wave reflection layer made of Au, Pd or an alloy thereof is provided.
It is a mobile communication device of the description.
【００１０】（３）前記電波反射層を設けた筐体は、入
力する電波をプリント基板に設けられた前記チップアン
テナに収束するような曲面を有していることを特徴とす
る（１）乃至（２）記載の移動体通信機である。(3) The housing provided with the radio wave reflection layer has a curved surface such that an input radio wave converges on the chip antenna provided on a printed circuit board. The mobile communication device according to (2).
【００１１】（４）前記電波反射層は、Ｃｕ，Ｎｉ，Ａ
ｇ，Ａｕ，Ｐｄ又はこれらの合金を塗布または蒸着する
ことによって設けられたことを特徴とする（１）乃至
（３）記載の移動体通信機である。(4) The radio wave reflection layer is made of Cu, Ni, A
The mobile communication device according to any one of (1) to (3), wherein the mobile communication device is provided by applying or depositing g, Au, Pd, or an alloy thereof.
【００１２】[0012]
【発明の実施の形態】チップアンテナを移動体通信機の
筐体中に設け、人体方向への電波放射を遮断して人体に
及ぼす悪影響を軽減する。これは、前記筐体の一部であ
って、少なくとも人体と前記チップアンテナの間の一部
分に、Ｃｕ，Ｎｉ，Ａｇ，Ａｕ，Ｐｄ又はこれらの合金
からなる電波反射層を設けることにより達成される。BEST MODE FOR CARRYING OUT THE INVENTION A chip antenna is provided in a housing of a mobile communication device to block radio wave radiation in the direction of the human body to reduce adverse effects on the human body. This is achieved by providing a radio wave reflection layer made of Cu, Ni, Ag, Au, Pd or an alloy thereof at least in a part of the housing and at least a part between the human body and the chip antenna. .
【００１３】さらに、受信電波が電波反射層に反射し前
記チップアンテナに収束するよう、電波反射層の設けら
れた筐体の一部を曲面に構成することにより、アンテナ
の指向性が強まり人体方向への電波放射が軽減するばか
りか、人体以外の部分への指向性が強まり微弱な電波も
受信することができる。Further, by forming a part of the housing provided with the radio wave reflecting layer into a curved surface so that the received radio wave is reflected on the radio wave reflecting layer and converges on the chip antenna, the directivity of the antenna is enhanced and the body direction is improved. In addition to reducing the radiation of radio waves to the body, the directivity to parts other than the human body is enhanced and weak radio waves can be received.
【００１４】電波反射層は塗布または蒸着によって構成
することが望ましいが、電波反射層を構成できるもので
あれば特に指定する必要の無いことは明らかである。The radio wave reflecting layer is desirably formed by coating or vapor deposition, but it is apparent that there is no particular need to specify the radio wave reflecting layer as long as it can form the radio wave reflecting layer.
【００１５】[0015]
【実施例】以下、本発明による移動体通信機として、例
えば携帯電話機の実施例を図面を用いて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a mobile communication device according to the present invention, for example, a portable telephone will be described below with reference to the drawings.
【００１６】図１（ａ）は本発明に係る移動体通信機の
概念図である。FIG. 1A is a conceptual diagram of a mobile communication device according to the present invention.
【００１７】筐体２の内部に設けられたプリント基板３
にチップアンテナ１を設置し、該チップアンテナ１と人
体５の間に位置する筐体の一部２ａにチップアンテナ１
から出力する電波４の一部を反射させることで、電波に
よる人体方向への電波放射が軽減する。Printed circuit board 3 provided inside housing 2
The chip antenna 1 is installed on the part 2a of the housing located between the chip antenna 1 and the human body 5.
By reflecting a part of the radio wave 4 output from the radio wave, the radio wave radiation toward the human body due to the radio wave is reduced.
【００１８】図１（ｂ）は筐体の一部２ａで電波４の一
部を反射させる機構の説明図である。FIG. 1B is an explanatory view of a mechanism for reflecting a part of the radio wave 4 on a part 2a of the housing.
【００１９】プリント基板３に設置されたチップアンテ
ナ１と人体５の間に位置する筐体の一部２ａに電波反射
層６を設け、かつ電波反射層６の設けられた筐体の一部
２ａを曲面状に形成することにより、放射される電波の
一部４ａは直接空中に放射され、他の電波４ｂは前記電
波反射層６に反射されて空中に放射される。従って、人
体５の方向へ放射される電波は著しく減少して、人体へ
の影響が減少することとなる。さらに、電波は電波反射
層６によって反射し、人体以外の方向へ放射されること
となるため、人体以外の方向へ出力される電波は大とな
る。The radio wave reflecting layer 6 is provided on a part 2a of the housing located between the chip antenna 1 and the human body 5 mounted on the printed circuit board 3, and the part 2a of the housing provided with the radio wave reflecting layer 6 is provided. Is formed into a curved surface, a part 4a of the radiated radio wave is directly radiated into the air, and the other radio wave 4b is reflected by the radio wave reflection layer 6 and radiated into the air. Therefore, the radio wave radiated in the direction of the human body 5 is significantly reduced, and the influence on the human body is reduced. Further, since the radio waves are reflected by the radio wave reflection layer 6 and radiated in directions other than the human body, the radio waves output in directions other than the human body are large.
【００２０】図２の実線７は、電波反射層６を備えた筐
体の一部２ａの近傍に設置した、プリント基板３上のチ
ップアンテナ１の出力特性である。また、破線８は従来
の移動体通信機が一般に具備するホイップアンテナの出
力特性である。The solid line 7 in FIG. 2 shows the output characteristics of the chip antenna 1 on the printed circuit board 3 installed near the part 2a of the housing provided with the radio wave reflection layer 6. A broken line 8 indicates the output characteristics of a whip antenna generally provided in a conventional mobile communication device.
【００２１】従来のホイップアンテナを備えた移動体通
信機は無指向性であるため人体への影響は避けられない
が、筐体の一部２ａに電波反射層６を備えた移動体通信
機は、電波反射層６の方向へ出力される電波が著しく減
少し、人体５への影響が小さいことがわかる。A conventional mobile communication device equipped with a whip antenna is omnidirectional and, therefore, inevitably affects the human body. However, a mobile communication device provided with a radio wave reflection layer 6 on a part 2a of a housing is not used. It can be seen that the radio wave output in the direction of the radio wave reflection layer 6 is remarkably reduced, and the influence on the human body 5 is small.
【００２２】また、電波反射層６を備えた筐体の一部２
ａは曲面形状であるためチップアンテナ１に直接入力し
ない電波であっても電波反射層６に反射してチップアン
テナ１に入力するためアンテナの感度が上昇する。ここ
で、電波反射層６を備えた筐体の一部２ａが有する曲面
を変化させることで任意の方向に電波を放射することが
可能であるが、焦点をチップアンテナ上に結ぶよう構成
することが望ましい。A part 2 of the housing provided with the radio wave reflecting layer 6
Since a is a curved surface, even a radio wave that is not directly input to the chip antenna 1 is reflected on the radio wave reflection layer 6 and input to the chip antenna 1, so that the antenna sensitivity is increased. Here, it is possible to radiate a radio wave in an arbitrary direction by changing the curved surface of a part 2a of the housing provided with the radio wave reflection layer 6, but it is necessary to configure the focus on the chip antenna. Is desirable.
【００２３】電波反射層６は電波を反射する能力を有す
るものであれば特に指定しないが、Ｃｕ，Ｎｉ，Ａｇ，
Ａｕ，Ｐｄ又はこれらの合金であることが望ましく、蒸
着または塗布によって構成することが望ましい。The radio wave reflection layer 6 is not particularly specified as long as it has the ability to reflect radio waves.
It is desirable to use Au, Pd, or an alloy thereof, and it is desirable to form them by vapor deposition or coating.
【００２４】[0024]
【発明の効果】電波による悪影響を人体に与えることが
少なく、かつ電波の受信感度の高い移動体通信機を提供
することができる。According to the present invention, it is possible to provide a mobile communication device which does not adversely affect the human body due to radio waves and has high radio wave reception sensitivity.
【図１】本発明に係る移動体通信機の概念図FIG. 1 is a conceptual diagram of a mobile communication device according to the present invention.
【図２】本発明に係る移動体通信機の特性を示す図FIG. 2 is a diagram showing characteristics of the mobile communication device according to the present invention.
【図３】従来の移動体通信機を示す図FIG. 3 is a diagram showing a conventional mobile communication device.
１ チップアンテナ ２ 筐体 ３ プリント基板 ４ 電波 ５ 人体 ６ 電波反射層 Reference Signs List 1 chip antenna 2 housing 3 printed circuit board 4 radio wave 5 human body 6 radio wave reflection layer
Claims (4)
通信機であって、前記チップアンテナから人体方向への
電波放射を遮断し、かつチップアンテナへ入力する電波
を収束強調する手段を設けたことを特徴とする移動体通
信機。1. A mobile communication device having a chip antenna in a housing, comprising means for blocking radio wave radiation from the chip antenna toward a human body and converging and emphasizing a radio wave input to the chip antenna. A mobile communication device characterized in that:
あって、前記チップアンテナが設けられているプリント
基板と人体との間に位置する筐体の少なくとも一部分
に、Ｃｕ，Ｎｉ，Ａｇ，Ａｕ，Ｐｄ又はこれらの合金か
らなる電波反射層を設けたことを特徴とする請求項１記
載の移動体通信機。2. A mobile communication device having a built-in chip antenna, wherein Cu, Ni, Ag, Au is provided on at least a part of a housing located between a printed circuit board provided with the chip antenna and a human body. 2. The mobile communication device according to claim 1, further comprising a radio wave reflection layer made of Pd, Pd, or an alloy thereof.
電波をプリント基板に設けられた前記チップアンテナに
収束するような曲面を有していることを特徴とする請求
項１乃至２記載の移動体通信機。3. The housing provided with the radio wave reflection layer has a curved surface such that an input radio wave converges on the chip antenna provided on a printed circuit board. A mobile communication device as described.
ｕ，Ｐｄ又はこれらの合金を塗布または蒸着することに
よって設けられたことを特徴とする請求項１乃至３記載
の移動体通信機。4. The radio wave reflection layer is made of Cu, Ni, Ag, A
4. The mobile communication device according to claim 1, wherein the mobile communication device is provided by applying or depositing u, Pd, or an alloy thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29607897A JP3272650B2 (en) | 1997-10-29 | 1997-10-29 | Mobile communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29607897A JP3272650B2 (en) | 1997-10-29 | 1997-10-29 | Mobile communication equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11136156A true JPH11136156A (en) | 1999-05-21 |
| JP3272650B2 JP3272650B2 (en) | 2002-04-08 |
Family
ID=17828843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29607897A Expired - Fee Related JP3272650B2 (en) | 1997-10-29 | 1997-10-29 | Mobile communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3272650B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0878863A3 (en) * | 1997-05-14 | 2000-02-23 | Murata Manufacturing Co., Ltd. | Mobile communication apparatus |
| EP1331691A1 (en) * | 2002-01-28 | 2003-07-30 | Sony International (Europe) GmbH | Mobile terminal with grounded radiation shielding frame |
| EP1195843A3 (en) * | 2000-09-27 | 2003-11-05 | Nokia Corporation | Antenna arrangement in a mobile station |
| KR100578465B1 (en) * | 2001-12-27 | 2006-05-10 | 브이케이 주식회사 | An antenna set capable of reducing electromagnetic waves, and a mobile phone equipped with this antenna set |
| KR100834672B1 (en) * | 2001-06-05 | 2008-06-02 | 삼성전자주식회사 | Handheld terminal |
| FR2975865A1 (en) * | 2011-05-25 | 2012-11-30 | Louis Romain Plumerault | Protection object i.e. screen, for protecting user against electromagnetic waves emitted by mobile phone, has insulating part for allowing partial or complete insulation of user by forming protection part against waves |
-
1997
- 1997-10-29 JP JP29607897A patent/JP3272650B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0878863A3 (en) * | 1997-05-14 | 2000-02-23 | Murata Manufacturing Co., Ltd. | Mobile communication apparatus |
| EP1195843A3 (en) * | 2000-09-27 | 2003-11-05 | Nokia Corporation | Antenna arrangement in a mobile station |
| US7054671B2 (en) | 2000-09-27 | 2006-05-30 | Nokia Mobile Phones, Ltd. | Antenna arrangement in a mobile station |
| KR100834672B1 (en) * | 2001-06-05 | 2008-06-02 | 삼성전자주식회사 | Handheld terminal |
| KR100578465B1 (en) * | 2001-12-27 | 2006-05-10 | 브이케이 주식회사 | An antenna set capable of reducing electromagnetic waves, and a mobile phone equipped with this antenna set |
| EP1331691A1 (en) * | 2002-01-28 | 2003-07-30 | Sony International (Europe) GmbH | Mobile terminal with grounded radiation shielding frame |
| FR2975865A1 (en) * | 2011-05-25 | 2012-11-30 | Louis Romain Plumerault | Protection object i.e. screen, for protecting user against electromagnetic waves emitted by mobile phone, has insulating part for allowing partial or complete insulation of user by forming protection part against waves |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3272650B2 (en) | 2002-04-08 |
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