JPH0774535A - Antenna for portable device for mobile communication terminal - Google Patents
Antenna for portable device for mobile communication terminalInfo
- Publication number
- JPH0774535A JPH0774535A JP5220782A JP22078293A JPH0774535A JP H0774535 A JPH0774535 A JP H0774535A JP 5220782 A JP5220782 A JP 5220782A JP 22078293 A JP22078293 A JP 22078293A JP H0774535 A JPH0774535 A JP H0774535A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- conductor
- support member
- auxiliary
- portable device
- 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- Withdrawn
Links
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- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
- Transceivers (AREA)
- Waveguide Aerials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、携帯電話機等の移動通
信端末携帯機（以下「携帯機」と略称することがあ
る。）に使用されるアンテナに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna used in a mobile communication terminal portable device such as a portable telephone (hereinafter sometimes abbreviated as "portable device").
【０００２】移動通信システムでは、スペースダイバー
シティ方式が一般的に採用されており、そのため、携帯
機には、送受信兼用アンテナと受信専用アンテナの２つ
のアンテナが使用される。受信専用アンテナには、所謂
逆Ｆ型のアンテナが専ら用いられており、小型化に適し
特性ばらつきの少ないアンテナが要望されている。[0002] In mobile communication systems, the space diversity system is generally adopted, and therefore, two antennas, that is, an antenna for both transmission and reception and an antenna for reception only are used in a portable device. A so-called inverted F type antenna is exclusively used as a reception-only antenna, and an antenna suitable for miniaturization and having less characteristic variation is desired.
【０００３】[0003]
【従来の技術】図６は、携帯機用の従来の逆Ｆ型アンテ
ナの斜視図である。このアンテナは、概略直方体形状を
有する絶縁体からなるサポート部材１０と、サポート部
材１０の上面に設けられたアンテナ導体２０と、サポー
ト部材１０の下面に設けられたアース導体３０と、サポ
ート部材１０の側面に設けられアンテナ導体２０とアー
ス導体３０を接続するショートスタブ４０と、アンテナ
導体２０に接続される給電線５０とを備えている。2. Description of the Related Art FIG. 6 is a perspective view of a conventional inverted F-type antenna for a portable device. This antenna includes a support member 10 made of an insulator having a substantially rectangular parallelepiped shape, an antenna conductor 20 provided on the upper surface of the support member 10, a ground conductor 30 provided on the lower surface of the support member 10, and a support member 10 of the support member 10. A short stub 40 provided on the side surface for connecting the antenna conductor 20 and the ground conductor 30 and a power supply line 50 connected to the antenna conductor 20 are provided.
【０００４】携帯機の小型化に伴い、アンテナにも小型
化が要求される。アンテナを小型化するための従来の技
術として、アンテナの側面にアース面を近づけることが
知られている。アンテナの側面にアース面を近づけるこ
とにより容量成分が増大し、それによってアンテナの小
型化が可能になる。Along with the downsizing of portable devices, downsizing of the antenna is also required. As a conventional technique for downsizing an antenna, it is known to bring a ground plane close to the side surface of the antenna. By bringing the ground plane closer to the side surface of the antenna, the capacitance component increases, which allows the antenna to be downsized.
【０００５】[0005]
【発明が解決しようとする課題】アンテナの側面にアー
ス面を近づけるためには、例えば、アンテナが収容され
る筐体の内面にアース面を設け、そのアース面にアンテ
ナの側面が対向するようにアンテナを配置する。このた
め、アンテナを筐体内に実装するとき或いは筐体を組み
立てるときにアンテナが有する導体とアース面との間の
間隔がばらつき、アンテナの特性が安定しないという問
題があった。In order to bring the ground surface close to the side surface of the antenna, for example, the ground surface is provided on the inner surface of the housing in which the antenna is housed, and the side surface of the antenna faces the ground surface. Place the antenna. Therefore, when the antenna is mounted in the housing or when the housing is assembled, the distance between the conductor of the antenna and the ground surface varies, and the antenna characteristics are not stable.
【０００６】よって、本発明の目的は、小型化に適し且
つ特性がばらつきにくい移動通信端末携帯機用アンテナ
を提供することにある。[0006] Therefore, an object of the present invention is to provide an antenna for a mobile communication terminal portable device which is suitable for miniaturization and whose characteristics are less likely to vary.
【０００７】[0007]
【課題を解決するための手段】本発明によると、概略直
方体形状を有する絶縁体からなるサポート部材と、該サ
ポート部材の上面に設けられたアンテナ導体と、上記サ
ポート部材の下面に設けられたアース導体と、上記サポ
ート部材の側面の一つに設けられ上記アンテナ導体及び
上記アース導体を接続するショートスタブと、上記アン
テナ導体に接続される給電線と、上記サポート部材の側
面の他の一つの上面側に設けられ上記アンテナ導体に接
続される補助アンテナ導体と、該補助アンテナ導体に対
してほぼ平行に設けられ上記アース導体に接続される補
助アース導体と、上記サポート部材と一体に設けられ上
記補助アース導体を支持する支持部材とを備えた移動通
信端末携帯機用アンテナが提供される。According to the present invention, a support member made of an insulator having a substantially rectangular parallelepiped shape, an antenna conductor provided on the upper surface of the support member, and a ground provided on the lower surface of the support member. A conductor, a short stub provided on one of the side surfaces of the support member to connect the antenna conductor and the ground conductor, a power supply line connected to the antenna conductor, and an upper surface of the other side surface of the support member. Auxiliary antenna conductor provided on the side and connected to the antenna conductor, an auxiliary earth conductor provided substantially parallel to the auxiliary antenna conductor and connected to the earth conductor, and the auxiliary member integrally provided with the support member. Provided is an antenna for a mobile communication terminal portable device, which includes a support member that supports a ground conductor.
【０００８】[0008]
【作用】本発明のアンテナでは、アンテナ導体に接続さ
れる補助アンテナ導体をサポート部材の側面に設け、こ
の補助アンテナ導体に対してほぼ平行に補助アース導体
を設け、この補助アース導体をサポート部材と一体の支
持部材により支持するようにしているので、容量成分の
増大によるアンテナの小型化が可能になるとともに、ア
ンテナの実装時或いは携帯機の組立時に補助アンテナ導
体と補助アース導体との間の間隔のばらつきが生じるこ
とがなく、特性のばらつきにくいアンテナの提供が可能
になる。In the antenna of the present invention, the auxiliary antenna conductor connected to the antenna conductor is provided on the side surface of the support member, the auxiliary earth conductor is provided substantially parallel to the auxiliary antenna conductor, and the auxiliary earth conductor is used as the support member. Since it is supported by an integral support member, the antenna can be downsized by increasing the capacitance component, and the gap between the auxiliary antenna conductor and the auxiliary ground conductor can be increased when mounting the antenna or when assembling the portable device. It is possible to provide an antenna in which variations in characteristics do not occur and variations in characteristics are less likely to occur.
【０００９】[0009]
【実施例】以下本発明の実施例を説明する。図１は本発
明の第１実施例を示す図である。同図において、（Ａ）
は携帯機用アンテナの斜視図、（Ｂ）は（Ａ）における
矢印（Ｂ）方向の側面図である。EXAMPLES Examples of the present invention will be described below. FIG. 1 is a diagram showing a first embodiment of the present invention. In the figure, (A)
Is a perspective view of the portable device antenna, and (B) is a side view in the direction of the arrow (B) in (A).
【００１０】樹脂等の絶縁体からなるサポート部材１０
は、概略直方体形状を有しており、その上面には銅箔等
からなるアンテナ導体２０が貼着されている。また、サ
ポート部材１０の下面には同じく銅箔等からなるアース
導体３０が貼着されている。Support member 10 made of an insulating material such as resin
Has a substantially rectangular parallelepiped shape, and an antenna conductor 20 made of copper foil or the like is attached to the upper surface thereof. A ground conductor 30 made of copper foil or the like is also attached to the lower surface of the support member 10.
【００１１】サポート部材１０の長手方向端部の側面に
は、アンテナ導体２０とアース導体３０を短絡するショ
ートスタブ４０が設けられている。また、サポート部材
１０の側面にはショートスタブ４０と概略平行に給電線
５０が設けられている。給電線５０はアンテナ導体２０
に接続される。尚、ショートスタブ４０及び給電線５０
の形状並びにこれらの間隔はアンテナのインピーダンス
特性に応じて設定される。A short stub 40 for short-circuiting the antenna conductor 20 and the ground conductor 30 is provided on the side surface of the longitudinal end portion of the support member 10. Further, a power supply line 50 is provided on the side surface of the support member 10 substantially parallel to the short stub 40. The power supply line 50 is the antenna conductor 20.
Connected to. The short stub 40 and the power supply line 50
The shape and the distance between them are set according to the impedance characteristics of the antenna.
【００１２】サポート部材１０のショートスタブ４０及
び給電線５０が設けられている側と反対側の側面には、
銅箔等からなる補助アンテナ導体６１が貼着されてい
る。補助アンテナ導体６１は、サポート部材１０の側面
の上部、即ちアンテナ導体２０側に位置し、補助アンテ
ナ導体６１とアンテナ導体２０は接続されている。この
実施例では、補助アンテナ導体６１、アンテナ導体２
０、ショートスタブ４０及び給電線５０は一体である。On the side surface of the support member 10 opposite to the side where the short stub 40 and the power supply line 50 are provided,
An auxiliary antenna conductor 61 made of copper foil or the like is attached. The auxiliary antenna conductor 61 is located above the side surface of the support member 10, that is, on the antenna conductor 20 side, and the auxiliary antenna conductor 61 and the antenna conductor 20 are connected. In this embodiment, the auxiliary antenna conductor 61 and the antenna conductor 2 are used.
0, the short stub 40, and the power supply line 50 are integrated.
【００１３】サポート部材１０のショートスタブ４０及
び給電線５０が設けられている側と反対側の端部には、
概略Ｌ字断面を有する支持部材７１がサポート部材１０
と一体に設けられている。そして、支持部材７１には補
助アース導体８１が貼着されている。At the end of the support member 10 opposite to the side where the short stub 40 and the power supply line 50 are provided,
The support member 71 having a substantially L-shaped cross section is used as the support member 10.
It is provided integrally with. An auxiliary earth conductor 81 is attached to the support member 71.
【００１４】補助アース導体８１は補助アンテナ導体６
１とほぼ平行であり、これらの間隔は予め定められた値
に設定される。この実施例では、補助アース導体８１と
アース導体３０は一体である。The auxiliary earth conductor 81 is the auxiliary antenna conductor 6
It is almost parallel to 1, and these intervals are set to predetermined values. In this embodiment, the auxiliary earth conductor 81 and the earth conductor 30 are integrated.
【００１５】この実施例によると、アンテナ導体２０に
接続される補助アンテナ導体６１と平行に補助アース導
体８１を設け、この補助アース導体８１をアース導体３
０と接続しているので、アンテナの小型化が可能にな
る。また、補助アース導体８１と補助アンテナ導体６１
の間の間隔は支持部材７１の形状によって規定されるの
で、このアンテナの実装時或いは組立時にアンテナの特
性がばらつく恐れがない。According to this embodiment, an auxiliary earth conductor 81 is provided in parallel with the auxiliary antenna conductor 61 connected to the antenna conductor 20, and this auxiliary earth conductor 81 is connected to the earth conductor 3.
Since it is connected to 0, the antenna can be downsized. In addition, the auxiliary ground conductor 81 and the auxiliary antenna conductor 61
Since the space between them is defined by the shape of the support member 71, there is no fear that the characteristics of the antenna will vary during mounting or assembly of this antenna.
【００１６】図２は本発明の携帯機用アンテナの第２実
施例を示す図である。同図において、（Ａ）は携帯機用
アンテナの斜視図、（Ｂ）は（Ａ）における矢印（Ｂ）
方向の側面図である。FIG. 2 is a diagram showing a second embodiment of an antenna for portable equipment of the present invention. In the figure, (A) is a perspective view of an antenna for a portable device, (B) is an arrow (B) in (A).
It is a side view of a direction.
【００１７】この実施例の携帯機用アンテナは、図１の
第１実施例における携帯機用アンテナと対比して、サポ
ート部材１０の４つの側面のうち、ショートスタブ４０
及び給電線５０が設けられている側面と隣り合う側面に
補助アンテナ導体６２を形成している点で特徴付けられ
る。また、支持部材７２及び補助アース導体８２も補助
アンテナ導体６２に対応する位置に設けられている。The portable device antenna of this embodiment is different from the portable device antenna of the first embodiment shown in FIG. 1 in that the short stub 40 is included in the four side surfaces of the support member 10.
And the auxiliary antenna conductor 62 is formed on the side surface adjacent to the side surface on which the feeder line 50 is provided. Further, the support member 72 and the auxiliary ground conductor 82 are also provided at positions corresponding to the auxiliary antenna conductor 62.
【００１８】この第２実施例の構成によっても、小型化
に適し且つ特性がばらつきにくい携帯機用アンテナの提
供が可能になる。図３は本発明の携帯機用アンテナの第
３実施例を示す図である。同図において、（Ａ）は携帯
機用アンテナの斜視図、（Ｂ）は（Ａ）における矢印
（Ｂ）方向の側面図である。The configuration of the second embodiment also makes it possible to provide an antenna for portable equipment which is suitable for miniaturization and whose characteristics are less likely to vary. FIG. 3 is a diagram showing a third embodiment of the portable device antenna of the present invention. In the figure, (A) is a perspective view of an antenna for a portable device, and (B) is a side view in the direction of the arrow (B) in (A).
【００１９】この実施例の携帯機用アンテナは、図１の
第１実施例における特徴点と図２の第２実施例における
特徴点の双方を備えていることで特徴付けられる。即
ち、サポート部材１０の側面には補助アンテナ導体６１
及び６２が設けられ、サポート部材１０と一体に支持部
材７１及び７２が設けられ、補助アンテナ導体６１及び
６２とそれぞれ平行に補助アース導体８１及び８２が設
けられている。The portable device antenna of this embodiment is characterized in that it has both the characteristic points of the first embodiment shown in FIG. 1 and the characteristic points of the second embodiment shown in FIG. That is, the side surface of the support member 10 has an auxiliary antenna conductor 61.
And 62, support members 71 and 72 are provided integrally with the support member 10, and auxiliary ground conductors 81 and 82 are provided in parallel with the auxiliary antenna conductors 61 and 62, respectively.
【００２０】この実施例では、補助アンテナ導体６１及
び６２はアンテナ導体２０と一体であり、支持部材７１
及び７２はサポート部材１０と一体であり、補助アース
導体８１及び８２はアース導体３０と一体である。ま
た、補助アンテナ導体６１は補助アンテナ導体６２に対
して垂直であり、補助アース導体８１は補助アース導体
８２に対して垂直である。In this embodiment, the auxiliary antenna conductors 61 and 62 are integrated with the antenna conductor 20, and the supporting member 71 is used.
And 72 are integral with the support member 10, and the auxiliary ground conductors 81 and 82 are integral with the ground conductor 30. The auxiliary antenna conductor 61 is perpendicular to the auxiliary antenna conductor 62, and the auxiliary ground conductor 81 is perpendicular to the auxiliary ground conductor 82.
【００２１】この第３実施例の構成によっても、小型化
に適し且つ特性がばらつきにくい携帯機用アンテナの提
供が可能になる。図４は本発明の実施例における携帯機
用アンテナの製造プロセスの一例を説明するための図で
ある。この図に沿って、図２の第２実施例における携帯
機用アンテナの製造プロセスを説明する。The configuration of the third embodiment also makes it possible to provide a portable device antenna that is suitable for miniaturization and whose characteristics are less likely to vary. FIG. 4 is a diagram for explaining an example of the manufacturing process of the portable device antenna according to the embodiment of the present invention. A manufacturing process of the portable device antenna according to the second embodiment of FIG. 2 will be described with reference to FIG.
【００２２】まず、概略直方体形状を有する絶縁体ブロ
ックに切削加工により溝を形成することで、サポート部
材１０及び支持部材７２の一体化物を作製する。次い
で、サポート部材１０の下面及び支持部材７２の側面に
一体のアース導体３０及び補助アース導体８２を貼着す
る。そして最後に、アンテナ導体２０、ショートスタブ
４０、給電線５０及び補助アンテナ導体６２の一体化物
をサポート部材１０の上方から取り付けるのである。First, a groove is formed in an insulator block having a substantially rectangular parallelepiped shape by cutting to manufacture an integrated product of the support member 10 and the support member 72. Next, the integrated ground conductor 30 and the auxiliary ground conductor 82 are attached to the lower surface of the support member 10 and the side surface of the support member 72. Finally, the integrated body of the antenna conductor 20, the short stub 40, the feeding line 50, and the auxiliary antenna conductor 62 is attached from above the support member 10.
【００２３】各導体は銅箔等のような金属材であっても
良いし、フレキシブルプリント配線板のような複合材で
あっても良い。本実施例における製造プロセスと従来の
製造プロセスとを比較すると、絶縁体ブロックに溝を形
成する分だけ本実施例における製造プロセスの方が工数
を要するが、この工数の増大はわずかであり、従来と比
べて製造コストが上昇する恐れがない。Each conductor may be a metal material such as a copper foil or a composite material such as a flexible printed wiring board. Comparing the manufacturing process of this embodiment with the conventional manufacturing process, the manufacturing process of this embodiment requires more man-hours as much as the grooves are formed in the insulator block, but the increase in this man-hour is small. There is no fear that the manufacturing cost will rise as compared with.
【００２４】図５は本発明の携帯機用アンテナを用いて
なる携帯機の分解斜視図である。本発明の携帯機用アン
テナ、例えば図２の第２実施例における携帯機用アンテ
ナ９０は、基板９１に基板９１の裏面側から半田付けに
より実装され、この基板９１はフロントケース９２及び
リアケース９３の間にネジ止めにより実装される。FIG. 5 is an exploded perspective view of a portable device using the portable device antenna of the present invention. The portable device antenna of the present invention, for example, the portable device antenna 90 in the second embodiment of FIG. 2, is mounted on the substrate 91 by soldering from the back side of the substrate 91, and the substrate 91 is mounted on the front case 92 and the rear case 93. It is mounted by screwing between.
【００２５】本実施例によると、携帯機用アンテナ９０
は前述したように小型化が可能であるから、携帯機全体
の小型化が可能になり、また、携帯機用アンテナ９０に
おける補助アンテナ導体と補助アース導体の間隔は予め
定められた値に設定されているので、携帯機用アンテナ
９０を基板９１に実装する際等にアンテナ特性がばらつ
く恐れがない。According to the present embodiment, the portable device antenna 90 is used.
Since the size can be reduced as described above, the size of the entire portable device can be reduced, and the distance between the auxiliary antenna conductor and the auxiliary ground conductor in the portable device antenna 90 is set to a predetermined value. Therefore, there is no possibility that the antenna characteristics will vary when the portable device antenna 90 is mounted on the substrate 91.
【００２６】[0026]
【発明の効果】以上説明したように、本発明によると、
小型化に適し且つ特性がばらつきにくい携帯機用アンテ
ナの提供が可能になるという効果が生じる。As described above, according to the present invention,
There is an effect that it is possible to provide an antenna for a portable device that is suitable for miniaturization and whose characteristics are less likely to vary.
【図１】本発明の第１実施例を示す携帯機用アンテナの
斜視図及び側面図である。FIG. 1 is a perspective view and a side view of an antenna for a portable device showing a first embodiment of the present invention.
【図２】本発明の第２実施例を示す携帯機用アンテナの
斜視図及び側面図である。FIG. 2 is a perspective view and a side view of an antenna for a portable device showing a second embodiment of the present invention.
【図３】本発明の第３実施例を示す携帯機用アンテナの
斜視図及び側面図である。FIG. 3 is a perspective view and a side view of an antenna for a portable device showing a third embodiment of the present invention.
【図４】本発明の実施例における携帯機用アンテナの製
造プロセスの一例を説明するための図である。FIG. 4 is a diagram for explaining an example of the manufacturing process of the antenna for portable device in the embodiment of the present invention.
【図５】本発明の携帯機用アンテナを用いてなる携帯機
の分解斜視図である。FIG. 5 is an exploded perspective view of a portable device using the portable device antenna of the present invention.
【図６】従来技術の説明図である。FIG. 6 is an explanatory diagram of a conventional technique.
１０ サポート部材 ２０ アンテナ導体 ３０ アース導体 ４０ ショートスタブ ５０ 給電線 ６１，６２ 補助アンテナ導体 ７１，７２ 支持部材 ８１，８２ 補助アース導体 10 Support Member 20 Antenna Conductor 30 Earth Conductor 40 Short Stub 50 Feeding Line 61, 62 Auxiliary Antenna Conductor 71, 72 Supporting Member 81, 82 Auxiliary Earth Conductor
Claims (4)
サポート部材(10)と、 該サポート部材(10)の上面に設けられたアンテナ導体(2
0)と、 上記サポート部材(10)の下面に設けられたアース導体(3
0)と、 上記サポート部材(10)の側面の一つに設けられ上記アン
テナ導体(20)及び上記アース導体(30)を接続するショー
トスタブ(40)と、 上記アンテナ導体(20)に接続される給電線(50)と、 上記サポート部材(10)の側面の他の一つの上面側に設け
られ上記アンテナ導体(20)に接続される補助アンテナ導
体(61,62) と、 該補助アンテナ導体(61,62) に対してほぼ平行に設けら
れ上記アース導体(30)に接続される補助アース導体(81,
82) と、 上記サポート部材(10)と一体に設けられ上記補助アース
導体(81,82) を支持する支持部材(71,72) とを備えたこ
とを特徴とする移動通信端末携帯機用アンテナ。1. A support member (10) made of an insulator having a substantially rectangular parallelepiped shape, and an antenna conductor (2 provided on an upper surface of the support member (10).
0) and the ground conductor (3
0), a short stub (40) provided on one of the side surfaces of the support member (10) for connecting the antenna conductor (20) and the earth conductor (30), and connected to the antenna conductor (20). A feeding line (50), an auxiliary antenna conductor (61, 62) provided on the other upper surface side of the support member (10) and connected to the antenna conductor (20), and the auxiliary antenna conductor. Auxiliary earth conductor (81, 61, 62) provided substantially parallel to (61, 62) and connected to the earth conductor (30).
82) and a supporting member (71, 72) which is provided integrally with the supporting member (10) and supports the auxiliary earth conductor (81, 82). .
記サポート部材(10)の側面と上記補助アンテナ導体(61)
が設けられる上記サポート部材(10)の側面とは互いに対
向することを特徴とする請求項１に記載の移動通信端末
携帯機用アンテナ。2. A side surface of the support member (10) provided with the short stub (40) and the auxiliary antenna conductor (61).
The antenna for a mobile communication terminal portable device according to claim 1, wherein side surfaces of the support member (10) provided with are opposed to each other.
記サポート部材(10)の側面と上記補助アンテナ導体(62)
が設けられる上記サポート部材(10)の側面とは互いに隣
り合うことを特徴とする請求項１に記載の移動通信端末
携帯機用アンテナ。3. A side surface of the support member (10) provided with the short stub (40) and the auxiliary antenna conductor (62).
The mobile communication terminal portable device antenna according to claim 1, wherein the side surface of the support member (10) provided with is adjacent to each other.
直行するように２つ設けられ、上記補助アース導体(81,
82) は上記補助アンテナ導体(61,62) に対応して２つ設
けられることを特徴とする請求項１に記載の移動通信端
末携帯機用アンテナ。4. The two auxiliary antenna conductors (61, 62) are provided so as to be orthogonal to each other, and the auxiliary earth conductor (81, 62) is provided.
2. The mobile communication terminal portable device antenna according to claim 1, wherein two 82) are provided corresponding to the auxiliary antenna conductors (61, 62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5220782A JPH0774535A (en) | 1993-09-06 | 1993-09-06 | Antenna for portable device for mobile communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5220782A JPH0774535A (en) | 1993-09-06 | 1993-09-06 | Antenna for portable device for mobile communication terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0774535A true JPH0774535A (en) | 1995-03-17 |
Family
ID=16756492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5220782A Withdrawn JPH0774535A (en) | 1993-09-06 | 1993-09-06 | Antenna for portable device for mobile communication terminal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0774535A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08204438A (en) * | 1995-01-31 | 1996-08-09 | Seiko Instr Inc | Antenna for portable telephone set |
| KR100449396B1 (en) * | 1998-12-24 | 2004-09-21 | 인터내셔널 비지네스 머신즈 코포레이션 | Patch antenna and electronic equipment using the same |
-
1993
- 1993-09-06 JP JP5220782A patent/JPH0774535A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08204438A (en) * | 1995-01-31 | 1996-08-09 | Seiko Instr Inc | Antenna for portable telephone set |
| KR100449396B1 (en) * | 1998-12-24 | 2004-09-21 | 인터내셔널 비지네스 머신즈 코포레이션 | Patch antenna and electronic equipment using the same |
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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: 20001107 |