JPH11312998A - Portable radio equipment - Google Patents
Portable radio equipmentInfo
- Publication number
- JPH11312998A JPH11312998A JP10118207A JP11820798A JPH11312998A JP H11312998 A JPH11312998 A JP H11312998A JP 10118207 A JP10118207 A JP 10118207A JP 11820798 A JP11820798 A JP 11820798A JP H11312998 A JPH11312998 A JP H11312998A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- circuit board
- radiating element
- housing
- antenna radiating
- 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
Landscapes
- Support Of Aerials (AREA)
- Transceivers (AREA)
- Telephone Set Structure (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、平面アンテナを内
蔵する携帯無線機（携帯電話など）に関し、主としてデ
ジタル方式の携帯無線機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless device (such as a portable telephone) having a built-in planar antenna, and more particularly to a digital portable wireless device.
【０００２】[0002]
【従来の技術】従来、平面アンテナは小型で高利得とい
う利点により、デジタル方式の携帯電話の内蔵アンテナ
として広く使われてきた。近年、携帯電話市場は急速に
普及し、背広の内ポケットに入るぐらいのサイズにまで
小型化され、更に小型化が進む傾向にある。それに伴
い、携帯電話に搭載されている内蔵平面アンテナの占有
スペースも縮小化が求められている。2. Description of the Related Art Conventionally, planar antennas have been widely used as built-in antennas for digital cellular phones because of their advantages of small size and high gain. 2. Description of the Related Art In recent years, the mobile phone market has rapidly spread, and has been reduced in size to a size that can be accommodated in an inner pocket of a business suit. Accordingly, the space occupied by the built-in planar antenna mounted on the mobile phone is also required to be reduced.
【０００３】内蔵アンテナの占有スペース縮小化のひと
つの試みとして、我々は「携帯無線機」（特願平９−２
９１２９５号）を提案した。この携帯無線機の内蔵アン
テナは、筐体ケースの背面内壁に放射素子を固定し、回
路基板上にある給電ランドと電気的に接続する手段を持
った方式である。この携帯無線機の実施形態を図３、図
４に示す。図３の実施形態は携帯無線機のリアケース１
内壁面に薄い板金製のアンテナ放射素子３を突起１１に
より位置決め固定したものである。そして回路基板６の
給電ランド１３からは給電端子部４がアンテナ放射素子
３方向に起立しており先端の接触部５がアンテナ放射素
子３に接続する構造を有している。As one attempt to reduce the space occupied by the built-in antenna, we have proposed a "portable radio" (Japanese Patent Application No. 9-2).
No. 91295). The built-in antenna of this portable wireless device has a method in which a radiating element is fixed to an inner wall on the back surface of a housing case and has a means for electrically connecting to a power supply land on a circuit board. An embodiment of the portable wireless device is shown in FIGS. The embodiment of FIG. 3 shows a rear case 1 of a portable wireless device.
An antenna radiating element 3 made of a thin sheet metal is positioned and fixed on an inner wall surface by a projection 11. The power supply terminal portion 4 stands up from the power supply land 13 of the circuit board 6 in the direction of the antenna radiating element 3, and has a structure in which the contact portion 5 at the tip is connected to the antenna radiating element 3.
【０００４】また、図４の別の実施形態は、板金製のア
ンテナ放射素子３に給電端子部４を板金による一体成形
をしたもので、先端の接触部５が回路基板６上の給電ラ
ンド１３に接続する構造を有している。In another embodiment shown in FIG. 4, a feeding terminal portion 4 is integrally formed with a sheet metal antenna radiating element 3 by a sheet metal, and a contact portion 5 at a tip is provided with a feeding land 13 on a circuit board 6. It has a structure to connect to.
【０００５】[0005]
【発明が解決しようとする課題】アンテナ利得は回路基
板（グランド）からの放射素子の高さが高いほど良いこ
とが知られており、上記発明もこの現象を積極的に活用
した方法である。しかし、グランドからアンテナ放射素
子の高さが高いと、低い位置にあるときよりも、放射素
子の大きさが大きくなることが実験室上でわかってい
る。アンテナは大きければ大きいほど、特性が良いので
あるが、これを筐体ケースの内壁背面に収めようとする
と問題が生じる可能性がある。It is known that the higher the height of the radiating element from the circuit board (ground) is, the better the antenna gain is, and the above-mentioned invention is also a method utilizing this phenomenon positively. However, it has been known in the laboratory that the height of the antenna radiating element from the ground is larger than that of the antenna radiating element at a lower position. The larger the antenna, the better the characteristics. However, if this antenna is to be housed on the back surface of the inner wall of the case, a problem may occur.
【０００６】最近の携帯電話の小型化により、縦方向の
長さが短いものが多く、必然的にアンテナのリアケース
内壁上で使用可能なスペースが減ることになる。無理に
下方向に伸ばそうとしても、下部にはバッテリーが存在
するので伸ばすことができない。もし仮にバッテリーサ
イズが小さく伸ばすことができたとしても、携帯電話を
持った状態のとき、平面アンテナが手に覆われて特性を
悪化する可能性があるので、下方向に伸ばすのは賢明で
はない。 また、筐体ケースの内壁背面にアンテナ放射
素子を固定するので、人体の影響を考慮するとき、具体
的には手で筐体を持たれるときに指がアンテナ上にある
とアンテナと人体が距離的に近くなるので人体による影
響が大きくなる問題がある。一般に、人体が近づくとア
ンテナの特性が変化し、自由空間上の利得から大きく利
得が劣化する。また、アンテナの利得は回路基板（グラ
ンド）から放射素子が高いほど利得が良くなることが知
られている。[0006] With the recent miniaturization of mobile phones, the length in the vertical direction is often short, and the space available on the inner wall of the rear case of the antenna is inevitably reduced. Even if you try to extend it downward, it cannot be extended because the battery is at the bottom. Even if the battery size can be extended to a small extent, it is not wise to extend it downwards when holding a mobile phone, as the flat antenna may be covered by hands and the characteristics may deteriorate. . In addition, since the antenna radiating element is fixed to the back surface of the inner wall of the housing case, when considering the influence of the human body, specifically, if the finger is on the antenna when holding the housing by hand, the antenna and the human body will be at a distance. There is a problem that the influence of the human body becomes large. Generally, when a human body approaches, the characteristics of the antenna change, and the gain in free space is greatly deteriorated. Further, it is known that the gain of the antenna increases as the radiating element increases from the circuit board (ground).
【０００７】以上述べたように、リアケースの内壁背面
を使うスペースも徐々に狭まってきているのが現状であ
り、人体による影響も考慮しなければならない。As described above, at present, the space for using the back surface of the inner wall of the rear case is gradually narrowing, and it is necessary to consider the influence of the human body.
【０００８】[0008]
【課題を解決するための手段】上記従来技術の課題を解
決するために本発明は、板厚の薄い板金あるいは金属箔
で形成され、無線機筐体内壁のうち背面と該背面に隣接
する天面及び／又は側面の少なくとも２面にまたがり該
面に密着する形状を有したアンテナ放射素子と、回路基
板と、前記筐体回路基板を取り付けた際、筐体内壁に密
着したアンテナ放射素子と回路基板上の回路との電気的
接続を行う手段から構成する。前記アンテナ放射素子が
電気的に１／４λの長さを有するアンテナとする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention is directed to a wireless communication apparatus which is formed of a thin sheet metal or metal foil and has a rear surface and a ceiling adjacent to the rear surface among the inner walls of the radio device housing. An antenna radiating element having a shape that covers and adheres to at least two surfaces and / or side surfaces, a circuit board, and an antenna radiating element and a circuit that adhere to an inner wall of the housing when the housing circuit board is attached; It comprises means for making an electrical connection with the circuit on the substrate. The antenna radiating element is an antenna having an electrical length of 1 / 4λ.
【０００９】また、本発明は、板厚の薄い板金あるいは
金属箔で形成され、無線機筐体背面の内壁に密着し、少
なくとも１辺が筐体内部方向に向かって曲げられて、所
定の長さが背面から離されるアンテナ放射素子と、回路
基板と、前記筐体に回路基板を取り付けた際、筐体内壁
に密着したアンテナ放射素子と回路基板上の回路との電
気的接続を行う手段から構成する。前記アンテナ放射素
子が電気的に１／４λの長さを有するアンテナとする。Further, the present invention is characterized in that it is formed of a thin sheet metal or metal foil, is in close contact with the inner wall on the rear surface of the radio device housing, and has at least one side bent toward the inside of the housing to have a predetermined length. When the antenna radiating element is separated from the back surface, the circuit board, and the circuit board is attached to the housing, the antenna radiating element that is in close contact with the inner wall of the housing and means for electrically connecting the circuit on the circuit board Constitute. The antenna radiating element is an antenna having an electrical length of 1 / 4λ.
【００１０】[0010]
【発明の実施の形態】以下図面を用いて本発明の実施形
態を説明する。図１は本発明の携帯無線機の筐体の側面
断面図であり、図１において、紙面上側を筐体背面、紙
面下側が筐体正面となっており、１はケースの背面部で
あるリアケースであり、２はケースの前面部であるフロ
ントケースであり、３は薄い板金あるいは金属箔で形成
されたアンテナ放射素子であり、３ａはアンテナ放射素
子３のうちで筐体の背面側に固定されている部分である
背面部であり、３ｂは同じく筐体の天面側に固定されて
いる、アンテナ放射素子３の一部である天面部であり、
４はアンテナ放射素子３の給電部である給電端子部であ
り、５は給電端子部の先端の接触部であり、６は回路基
板であり、７はＬＣＤであり、８は内部にＲＦ回路を収
めたシールドケースであり、９はＲＦ（無線）回路であ
り、１０は収納したり伸長したりできる伸縮式の送受信
アンテナであり、１１は板金製のアンテナ放射素子３を
位置決め固定するリアケース１の突起であり、１２は板
金製のアンテナ放射素子３を固定する両面テープであ
り、１３は回路基板６上の給電ランドであり、１４はデ
ジタル回路部品であり、１５はバッテリーである。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side cross-sectional view of a housing of a portable wireless device according to the present invention. In FIG. 1, the upper side of the drawing is the case back, the lower side of the drawing is the case front, and 1 is a rear part of the case. Reference numeral 2 denotes a front case which is a front part of the case, 3 denotes an antenna radiating element formed of thin sheet metal or metal foil, and 3a denotes a portion of the antenna radiating element 3 which is fixed to the rear side of the housing. 3b is a top surface part which is a part of the antenna radiating element 3 and is also fixed to the top surface side of the housing;
Reference numeral 4 denotes a feed terminal portion serving as a feed portion of the antenna radiating element 3, reference numeral 5 denotes a contact portion at the tip of the feed terminal portion, reference numeral 6 denotes a circuit board, reference numeral 7 denotes an LCD, and reference numeral 8 denotes an RF circuit inside. Reference numeral 9 denotes an RF (wireless) circuit, reference numeral 9 denotes an extendable transmission / reception antenna which can be stored and extended, and reference numeral 11 denotes a rear case 1 for positioning and fixing an antenna radiating element 3 made of sheet metal. Numeral 12 is a double-sided tape for fixing the antenna radiating element 3 made of sheet metal, 13 is a feeding land on the circuit board 6, 14 is a digital circuit component, and 15 is a battery.
【００１１】アンテナ放射素子３は、リン青銅等の材料
で作られた板厚の薄い板金（約０．１ｍｍ以下）あるい
は銅箔などの金属箔で形成されており、基地局からの送
信電波を受信できるように、受信帯域で共振するような
１／４波長（λ）の電気的長さをもつような形状の放射
素子である。また、アンテナ放射素子３の給電端子部４
は弾性をもつばね形状を有しており、回路基板６の給電
ランド１３上に設けられ回路基板６をリアケース１に取
り付けると接触部５がアンテナ放射素子３に接続し電気
的に導通する。この構成は、リアケース１を無理なく組
み立てたり、はずしたりするためである。The antenna radiating element 3 is made of a thin sheet metal (about 0.1 mm or less) made of a material such as phosphor bronze or a metal foil such as a copper foil, and transmits radio waves transmitted from a base station. It is a radiating element shaped to have an electrical length of １ ／ wavelength (λ) that resonates in the receiving band so that it can be received. Also, the feed terminal 4 of the antenna radiating element 3
Has a resilient spring shape, and is provided on the feed land 13 of the circuit board 6, and when the circuit board 6 is attached to the rear case 1, the contact portion 5 is connected to the antenna radiating element 3 and is electrically connected. This configuration is for assembling and removing the rear case 1 without difficulty.
【００１２】このような構成のときに、リアケース１の
内壁に固定されているアンテナ放射素子３は、その下の
回路基板６にあるグランド（内層でも可）との間で共振
が起こり、受信した電力はアンテナ素子３から給電端子
部４、給電ランド１３、給電ラインを通り受信回路に入
る。In such a configuration, the antenna radiating element 3 fixed to the inner wall of the rear case 1 resonates with the ground (internal layer is also possible) on the circuit board 6 therebelow, and the reception is performed. The supplied power enters the receiving circuit from the antenna element 3 through the power supply terminal portion 4, the power supply land 13, and the power supply line.
【００１３】アンテナ放射素子３は背面部３ａと天面部
３ｂとから成り立っており、背面部３ａと天面部３ｂは
実際の放射に寄与する。このようにリアケース１の背面
ばかりでなく、天面側も使用するので、アンテナスペー
スをその分確保できる。もし、筐体が小さく、背面側を
あまりスペースがとれないような場合でも、天面側にア
ンテナスペースを伸ばせばいいので、受信帯に共振周波
数を持つに十分な大きさのアンテナを作ることができ
る。こうすることにより、無理に背面側でアンテナを作
る場合に比べて、設計の自由度が上昇する。The antenna radiating element 3 includes a back surface 3a and a top surface 3b, and the back surface 3a and the top surface 3b contribute to actual radiation. As described above, not only the rear surface of the rear case 1 but also the top surface is used, so that an antenna space can be secured accordingly. Even if the housing is small and the back side does not take up much space, it is sufficient to extend the antenna space to the top side, so it is necessary to make an antenna large enough to have a resonance frequency in the reception band. it can. By doing so, the degree of freedom in design increases compared to a case where an antenna is forcibly made on the rear side.
【００１４】アンテナ放射素子３は給電端子部４の接触
部５との接続位置から背面部３ａそして天面部３ｂにか
けて蛇行状の形状を有しており、その蛇行形状の先端つ
まりは開放端を天面部３ａに配置する形状としている。
アンテナ放射素子３は１／４波長の長さであるので、給
電端子部４で電流最大、天面部３ａにある開放端で電界
最大となる。携帯無線機の使用状態を考えるとき、主に
人間が手に持って使われるケースが多い。内蔵平面アン
テナは筐体の上部背面に配置されることが多く、一般使
用者がこのアンテナの存在を知らないこともあり、アン
テナに指がかかることがある。また、最近は筐体のサイ
ズが小さくなってきているのでその傾向に拍車がかかっ
ている。人体つまりは指が近づくと、そのインピーダン
スが変化して、利得が劣化する。このインピーダンスの
変化の度合は、アンテナの電界の強い箇所に指が近づく
ときが大きいので、アンテナ放射素子３の開放端に指が
近づくときが最もインピーダンスの変化が大きく、利得
の劣化が大きくなる。The antenna radiating element 3 has a meandering shape from the connection position of the feeding terminal portion 4 with the contact portion 5 to the back surface portion 3a and the top surface portion 3b. The shape is arranged on the surface 3a.
Since the antenna radiating element 3 has a length of 1/4 wavelength, the current becomes maximum at the feed terminal 4 and the electric field becomes maximum at the open end on the top surface 3a. When considering the usage state of a portable wireless device, it is often the case that a human is mainly used by holding it in his hand. The built-in planar antenna is often arranged on the upper back surface of the housing, and a general user may not know the existence of this antenna, and a finger may touch the antenna. In addition, recently, as the size of the housing has been reduced, the tendency has been spurred. When a human body, that is, a finger approaches, the impedance changes and the gain deteriorates. Since the degree of the change in the impedance is large when the finger approaches a place where the electric field of the antenna is strong, the change in the impedance is greatest when the finger approaches the open end of the antenna radiating element 3 and the deterioration of the gain is large.
【００１５】上記からわかるように、本発明のアンテナ
放射素子３の電界最大である開放端は、指のかかりやす
い背面部にはなく、指のかかりにくい天面部に配置して
いるので、人体の影響による利得劣化が低く抑えられ
る。また、アンテナ放射素子３は筐体の内壁に固定する
構成であるので、回路基板６（グランド）とアンテナ放
射素子３の高さを最大限に確保できるので自由空間上の
利得を良くすることができる。As can be seen from the above, the open end of the antenna radiating element 3 of the present invention where the electric field is maximum is not located on the back surface where the finger is easily applied, but on the top surface where the finger is not easily applied. Gain deterioration due to the influence can be suppressed low. Further, since the antenna radiating element 3 is fixed to the inner wall of the housing, the height of the circuit board 6 (ground) and the antenna radiating element 3 can be maximized, so that the gain in free space can be improved. it can.
【００１６】また、回路基板６の内蔵平面アンテナによ
る占有スペースは給電ランド１３（場合により整合回路
含む）のみになるので最小限に抑えられる。Further, the space occupied by the built-in planar antenna of the circuit board 6 is minimized because only the feed land 13 (including a matching circuit in some cases) is used.
【００１７】図２は図１の携帯無線機の変形例である。
図１の携帯無線機との違いはアンテナ放射素子３と給電
端子部４とが一体成形されている点で、回路基板６をリ
アケース１に取り付けたとき、給電端子部４の先端の接
触部５が回路基板６上の給電ランド１３に接続する構造
となっている。FIG. 2 shows a modification of the portable wireless device shown in FIG.
The difference from the portable wireless device of FIG. 1 is that the antenna radiating element 3 and the feed terminal 4 are integrally formed. When the circuit board 6 is mounted on the rear case 1, the contact portion at the tip of the feed terminal 4 is formed. 5 is connected to the power supply land 13 on the circuit board 6.
【００１８】図３、４で表わすように、従来技術の内蔵
アンテナでは、アンテナ放射素子３は背面部のみであ
り、もし、背面側で十分なスペースが確保できない場合
は、満足な特性が得られない可能性があり、最悪なケー
スでは、受信帯に共振点を持たすことができない場合も
ありえる。そして従来の内蔵アンテナではアンテナ放射
素子３は背面部のみで開放端も背面部にあるのでアンテ
ナに指がかかる恐れが高い。As shown in FIGS. 3 and 4, in the built-in antenna of the prior art, the antenna radiating element 3 is provided only on the back side, and if sufficient space cannot be secured on the back side, satisfactory characteristics can be obtained. In the worst case, it may not be possible to have a resonance point in the reception band. In the conventional built-in antenna, the antenna radiating element 3 is only on the rear surface and the open end is also on the rear surface, so that there is a high possibility that a finger touches the antenna.
【００１９】なおアンテナ放射素子３を無線機筐体の背
面部と天面部とにまたがって配置したが、これを背面部
と側面部とにまたがって配置してもよく、あるいは、背
面部と天面部と側面部の３面にまたがって配置してもよ
い。筐体の各面との堺がゆるやかな曲面をもつのであれ
ば、その曲面部を使用してもよい。Although the antenna radiating element 3 is arranged so as to extend over the rear part and the top part of the radio unit case, it may be arranged so as to extend over the rear part and the side part, or alternatively, the rear part and the top part may be arranged. You may arrange | position over three surfaces of a surface part and a side part. If the Sakai with each surface of the housing has a gentle curved surface, the curved portion may be used.
【００２０】また、無線機筐体の背面部のみにアンテナ
放射素子を固定して、アンテナ放射素子３の一部（少な
くとも一辺）を内方向に折り曲げて、ある程度の長さを
背面部から離すようにしても上述と同様に機能する。ア
ンテナ放射素子３の材料は板厚の薄い板金で筐体の面に
合わせて、折り曲げ加工を施してもよく、さらに薄い板
厚の板金で筐体の曲面に合わせて、そのまま固定しても
よい。また、金属箔を用いてもよい。Further, the antenna radiating element is fixed only to the rear part of the casing of the radio, and a part (at least one side) of the antenna radiating element 3 is bent inward so that a certain length is separated from the rear part. Even so, it functions in the same manner as described above. The material of the antenna radiating element 3 may be bent with a thin sheet metal in accordance with the surface of the housing, or may be fixed as it is in accordance with the curved surface of the housing with a thin sheet metal. . Further, a metal foil may be used.
【００２１】[0021]
【実施例】一例として、８００ＭＨｚ帯のデジタル式携
帯電話に本発明を使用したとすれば、板厚の薄い板金あ
るいは金属箔で形成された放射素子の大きさは、ケース
背面部はの大きさは２０×２４ｍｍ（縦×横、グランド
からの高さは５ｍｍ）であり、天面部の大きさは５×７
ｍｍ（縦×横）であり、背面部のみを用いる場合よりも
その背面部で使用するスペースが少なくてすむことにな
る。As an example, assuming that the present invention is used for an 800 MHz band digital mobile phone, the size of the radiating element formed of a thin sheet metal or metal foil is the same as the size of the back of the case. Is 20 × 24 mm (length × width, height from the ground is 5 mm), and the size of the top surface is 5 × 7
mm (length × width), which means that less space is required on the back than when only the back is used.
【００２２】[0022]
【発明の効果】上述のように本発明は、板厚の薄い板金
あるいは金属箔で形成され、無線機筐体内壁のうち背面
と該背面に隣接する天面及び／又は側面の少なくとも２
面にまたがり該面に密着する形状を有したアンテナ放射
素子と、回路基板と、前記筐体回路基板を取り付けた
際、筐体内壁に密着したアンテナ放射素子と回路基板上
の回路との電気的接続を行う手段から構成されるように
したので、または板厚の薄い板金あるいは金属箔で形成
され、無線機筐体背面の内壁に密着し、少なくとも１辺
が筐体内部方向に向かって曲げられて、所定の長さが背
面から離されるアンテナ放射素子と、回路基板と、前記
筐体に回路基板を取り付けた際、筐体内壁に密着したア
ンテナ放射素子と回路基板上の回路との電気的接続を行
う手段から構成されるようにしたので、小型化された筐
体でもアンテナを収めることができるように設計の自由
度が大きく向上し、しかも人体による影響も受けにくく
なる。As described above, the present invention is formed of a thin sheet metal or metal foil, and has at least two of a rear surface and a top surface and / or a side surface adjacent to the rear surface of the radio device housing inner wall.
An antenna radiating element having a shape extending over and in close contact with the surface, a circuit board, and an electric circuit between the antenna radiating element in close contact with the inner wall of the casing and a circuit on the circuit board when the casing circuit board is attached. Since it is constituted by means for making connection, or formed of a thin sheet metal or metal foil, it is in close contact with the inner wall of the back of the radio device housing, and at least one side is bent toward the inside of the housing. The antenna radiating element having a predetermined length separated from the back surface, the circuit board, and the electric circuit between the antenna radiating element and the circuit on the circuit board which are in close contact with the inner wall of the housing when the circuit board is attached to the housing. Since it is constituted by the means for making the connection, the degree of freedom of design is greatly improved so that the antenna can be accommodated even in a miniaturized housing, and furthermore it is hardly affected by the human body.
【図１】本発明の第１実施形態を示す携帯無線機の側面
断面図FIG. 1 is a side sectional view of a portable wireless device according to a first embodiment of the present invention.
【図２】本発明の第２実施形態を示す携帯無線機の側面
断面図FIG. 2 is a side sectional view of a portable wireless device according to a second embodiment of the present invention.
【図３】従来の携帯無線機を説明する側面断面図FIG. 3 is a side sectional view illustrating a conventional portable wireless device.
【図４】従来の別の携帯無線機を説明する側面断面図FIG. 4 is a cross-sectional side view illustrating another conventional portable wireless device.
１ リアケース ２ フロントケース ３ アンテナ放射素子 ３ａ 背面部 ３ｂ 天面部 ４ 給電端子部 ５ 接触部 ６ 回路基板 ７ ＬＣＤ ８ シールドケース ９ ＲＦ回路 １０ 送受信アンテナ １１ 突起 １２ 両面テープ １３ 給電ランド １４ デジタル回路部品 １５ バッテリー DESCRIPTION OF SYMBOLS 1 Rear case 2 Front case 3 Antenna radiation element 3a Back part 3b Top part 4 Power supply terminal part 5 Contact part 6 Circuit board 7 LCD 8 Shield case 9 RF circuit 10 Transmission / reception antenna 11 Projection 12 Double-sided tape 13 Power supply land 14 Digital circuit parts 15 battery
Claims (3)
れ、無線機筐体内壁のうち背面と該背面に隣接する天面
及び／又は側面の少なくとも２面にまたがり該面に密着
する形状を有したアンテナ放射素子と、回路基板と、前
記筐体回路基板を取り付けた際、筐体内壁に密着したア
ンテナ放射素子と回路基板上の回路との電気的接続を行
う手段から構成されることを特徴とする携帯無線機。1. A shape formed of a thin sheet metal or a metal foil, and is formed so as to extend over at least two sides of a rear surface and a top surface and / or a side surface adjacent to the rear surface of the inner wall of the radio device housing. An antenna radiating element having a circuit board, and a means for electrically connecting the antenna radiating element in close contact with the housing inner wall and a circuit on the circuit board when the casing circuit board is attached. Characteristic portable radio.
れ、無線機筐体背面の内壁に密着し、少なくとも１辺が
筐体内部方向に向かって曲げられて、所定の長さが背面
から離されるアンテナ放射素子と、回路基板と、前記筐
体に回路基板を取り付けた際、筐体内壁に密着したアン
テナ放射素子と回路基板上の回路との電気的接続を行う
手段から構成されることを特徴とする携帯無線機。2. A thin metal plate or a metal foil, which is in close contact with the inner wall of the rear surface of the radio device housing, at least one side of which is bent toward the inside of the housing, and has a predetermined length from the rear surface. An antenna radiating element to be separated, a circuit board, and means for electrically connecting the antenna radiating element in close contact with the inner wall of the housing and a circuit on the circuit board when the circuit board is mounted on the housing. A portable wireless device.
の長さを有するアンテナとなることを特徴とする請求項
１及び請求項２記載の携帯無線機。3. The antenna radiating element according to claim 1, wherein said antenna radiating element is electrically 1 / 4λ.
3. The portable wireless device according to claim 1, wherein the portable wireless device is an antenna having a length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10118207A JPH11312998A (en) | 1998-04-28 | 1998-04-28 | Portable radio equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10118207A JPH11312998A (en) | 1998-04-28 | 1998-04-28 | Portable radio equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11312998A true JPH11312998A (en) | 1999-11-09 |
Family
ID=14730860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10118207A Pending JPH11312998A (en) | 1998-04-28 | 1998-04-28 | Portable radio equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11312998A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7253773B2 (en) | 2001-06-13 | 2007-08-07 | Kabushiki Kaisha Toshiba | Radio module and radio communication apparatus with the radio module |
| WO2008050854A1 (en) * | 2006-10-26 | 2008-05-02 | Kyocera Corporation | Cellular phone |
| JP2011015088A (en) * | 2009-06-30 | 2011-01-20 | Sony Corp | High-frequency coupler, and communication device |
| JP2011055279A (en) * | 2009-09-02 | 2011-03-17 | Panasonic Corp | Communication apparatus |
| CN105409056A (en) * | 2013-10-01 | 2016-03-16 | 奥托里夫Asp股份有限公司 | Compact shielded automotive radar module and method |
| IT201600122755A1 (en) * | 2016-12-02 | 2018-06-02 | Magneti Marelli Spa | "Electronic vehicle module" |
| WO2019159437A1 (en) * | 2018-02-15 | 2019-08-22 | ヤマハモーターパワープロダクツ株式会社 | Communication unit and vehicle |
-
1998
- 1998-04-28 JP JP10118207A patent/JPH11312998A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7456795B2 (en) | 2001-06-13 | 2008-11-25 | Kabushiki Kaisha Toshiba | Radio module and radio communication apparatus with the radio module |
| US7253773B2 (en) | 2001-06-13 | 2007-08-07 | Kabushiki Kaisha Toshiba | Radio module and radio communication apparatus with the radio module |
| JP4696049B2 (en) * | 2006-10-26 | 2011-06-08 | 京セラ株式会社 | Mobile phone |
| JP2008109506A (en) * | 2006-10-26 | 2008-05-08 | Sanyo Electric Co Ltd | Portable telephone |
| WO2008050854A1 (en) * | 2006-10-26 | 2008-05-02 | Kyocera Corporation | Cellular phone |
| US8160658B2 (en) | 2006-10-26 | 2012-04-17 | Kyocera Corporation | Cellular phone |
| JP2011015088A (en) * | 2009-06-30 | 2011-01-20 | Sony Corp | High-frequency coupler, and communication device |
| JP2011055279A (en) * | 2009-09-02 | 2011-03-17 | Panasonic Corp | Communication apparatus |
| CN105409056A (en) * | 2013-10-01 | 2016-03-16 | 奥托里夫Asp股份有限公司 | Compact shielded automotive radar module and method |
| JP2017501371A (en) * | 2013-10-01 | 2017-01-12 | オートリブ エー・エス・ピー・インク | Compact shield automotive radar module and method |
| CN105409056B (en) * | 2013-10-01 | 2019-08-02 | 维宁尔美国公司 | The trailer-mounted radar module and method of compact shielding |
| IT201600122755A1 (en) * | 2016-12-02 | 2018-06-02 | Magneti Marelli Spa | "Electronic vehicle module" |
| WO2019159437A1 (en) * | 2018-02-15 | 2019-08-22 | ヤマハモーターパワープロダクツ株式会社 | Communication unit and vehicle |
| JP2019145872A (en) * | 2018-02-15 | 2019-08-29 | ヤマハモーターパワープロダクツ株式会社 | Communication unit and vehicle |
| US11731568B2 (en) | 2018-02-15 | 2023-08-22 | Yamaha Motor Power Products Kabushiki Kaisha | Communication unit and vehicle |
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