JPH09153734A - Surface mounted antenna and communication equipment using the antenna - Google Patents
Surface mounted antenna and communication equipment using the antennaInfo
- Publication number
- JPH09153734A JPH09153734A JP8256208A JP25620896A JPH09153734A JP H09153734 A JPH09153734 A JP H09153734A JP 8256208 A JP8256208 A JP 8256208A JP 25620896 A JP25620896 A JP 25620896A JP H09153734 A JPH09153734 A JP H09153734A
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- electrode
- face
- radiation electrode
- surface mount
- power supply
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、携帯電話等の移動
体通信機器、無線ＬＡＮ (Local Area Network)に用い
られる表面実装型アンテナおよびこれを用いた通信機に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication device such as a mobile phone, a surface mount antenna used in a wireless LAN (Local Area Network), and a communication device using the same.
【０００２】[0002]
【従来の技術】従来の表面実装型アンテナを図９を用い
て説明する。2. Description of the Related Art A conventional surface mount antenna will be described with reference to FIG.
【０００３】図９において、２０は表面実装型アンテナ
であり、基体２１を備える。基体２１の対向する一つの
端面２１ａには、グランド端子２２と給電端子２３の一
部が設けられている。この給電端子２３の残部は端面２
１ａに隣接する端面２１ｃの一部に跨がって設けられて
いる。前記一つの端面２１ａに対向する端面２１ｂに
は、容量装荷電極２４が設けられている。基体２１の対
向する両端面２１ａ、２１ｂ間には貫通孔２５が形成さ
れ、この貫通孔２５の内周には放射電極２５ａが形成さ
れている。この放射電極２５ａは、グランド端子２２お
よび容量装荷電極２４と電気的にそれぞれ接続されてい
る。そして、前記一つの端面２１ａに隣接する一つの端
面２１ｃから貫通孔２５に向かって貫通孔２６が形成さ
れている。この貫通孔２６の内周には給電用電極２６ａ
が形成され、この給電用電極２６ａは給電端子２３およ
び放射電極２５ａと電気的に接続されている。In FIG. 9, reference numeral 20 denotes a surface mount antenna, which includes a base 21. A ground terminal 22 and a part of the power supply terminal 23 are provided on one opposing end surface 21 a of the base body 21. The rest of the power supply terminal 23 is the end surface 2
It is provided across a part of the end face 21c adjacent to 1a. A capacitance loading electrode 24 is provided on the end face 21b facing the one end face 21a. A through hole 25 is formed between the opposite end surfaces 21 a and 21 b of the base body 21, and a radiation electrode 25 a is formed on the inner circumference of the through hole 25. The radiation electrode 25a is electrically connected to the ground terminal 22 and the capacitance loading electrode 24, respectively. A through hole 26 is formed from one end surface 21c adjacent to the one end surface 21a toward the through hole 25. The power supply electrode 26a is provided on the inner circumference of the through hole 26.
Is formed, and the power supply electrode 26a is electrically connected to the power supply terminal 23 and the radiation electrode 25a.
【０００４】このように構成される表面実装型アンテナ
２０は、電極２７ａおよび２７ｂの形成されたプリント
基板２７に載置され、電極２７ａとグランド端子２２、
および電極２７ｂと給電端子２３がそれぞれ半田接続さ
れる。The surface mount antenna 20 having the above-mentioned structure is mounted on the printed board 27 having the electrodes 27a and 27b formed thereon, and the electrode 27a and the ground terminal 22,
The electrode 27b and the power supply terminal 23 are soldered to each other.
【０００５】そして、電極２７ｂ、給電端子２３および
給電用電極２６ａを介して放射電極２５ａに印加された
高周波信号ｆは放射電極２５ａから電波となって放射さ
れる。また、放射電極２５ａに入射した電波は給電端子
２３および電極２７ｂから高周波増幅部（図示せず）へ
と送られる。The high frequency signal f applied to the radiation electrode 25a via the electrode 27b, the power feeding terminal 23 and the power feeding electrode 26a is radiated as a radio wave from the radiation electrode 25a. Further, the radio wave incident on the radiation electrode 25a is sent from the power supply terminal 23 and the electrode 27b to a high frequency amplifier (not shown).
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、従来の
表面実装型アンテナ２０は、二つ貫通孔２５、２６を設
けなければならず、さらに、これらの貫通孔２５、２６
に放射電極２５ａおよび給電用電極２６ａを形成する繁
雑な手段を必要として、コストアップとなる。とくに、
貫通孔２５の内周に形成された放射電極２５ａの放射抵
抗やリアクタンス成分は、孔の直径に起因して生じる。
この貫通孔２５の直径を小さくすると、波長短縮の効果
が大きくなって小型にできるが、その反面、貫通孔２５
の内周に放射電極２５ａを形成しにくくなるため、小型
化にも限度があり、特性パラメータの設計に制限をうけ
ていた。また、成型上、ストレート孔しか形成できず、
放射電極２５ａを長くすることができないという欠点を
有していた。However, the conventional surface mount antenna 20 must be provided with two through holes 25 and 26, and these through holes 25 and 26 are further provided.
In addition, a complicated means for forming the radiation electrode 25a and the power supply electrode 26a is required, resulting in an increase in cost. In particular,
Radiation resistance and reactance components of the radiation electrode 25a formed on the inner circumference of the through hole 25 are generated due to the diameter of the hole.
When the diameter of the through hole 25 is reduced, the wavelength shortening effect is increased and the size can be reduced. On the other hand, the through hole 25
Since it becomes difficult to form the radiation electrode 25a on the inner periphery of the device, there is a limit to miniaturization, and the design of characteristic parameters is restricted. Also, in terms of molding, only straight holes can be formed,
It has a drawback that the radiation electrode 25a cannot be lengthened.
【０００７】また、上述のように、従来の表面実装型ア
ンテナを実装した従来の通信機は、通信機筐体を小型化
できないという欠点があった。Further, as described above, the conventional communication device equipped with the conventional surface mount antenna has a drawback that the communication device housing cannot be downsized.
【０００８】そこで、本発明は、基体の表面に放射電極
を形成することにより、電極形成を容易とし、また、放
射電極を屈曲させることにより、さらに小型化に対応で
きる表面実装型アンテナおよびこれを用いた通信機を提
供することを目的とする。Therefore, the present invention facilitates electrode formation by forming a radiation electrode on the surface of a substrate, and bends the radiation electrode to enable further miniaturization and a surface-mounted antenna. The purpose is to provide a communication device used.
【０００９】[0009]
【課題を解決するための手段】上記の目的を達成するた
め、本発明にかかる表面実装型アンテナにおいては、誘
電体または磁性体よりなる基体の一方主面に、放射電極
とこの放射電極の整合部に直接接続され若しくはギャッ
プを介して容量接続された給電用電極とが形成され、前
記放射電極の一端は前記基体の一つの端面に形成された
容量装荷電極に接続され、前記放射電極の他端は前記一
つの端面以外のいずれかの端面に形成されたグランド端
子に接続され、前記給電用電極は、前記一つの端面以外
のいずれかの端面に一部若しくは全部が形成された給電
端子に接続されてなることを特徴とする。In order to achieve the above object, in a surface mount antenna according to the present invention, a radiation electrode and this radiation electrode are aligned on one main surface of a substrate made of a dielectric or magnetic material. A power feeding electrode that is directly connected to the portion or capacitively connected through a gap, one end of the radiation electrode is connected to a capacitance loading electrode formed on one end face of the base, and the other of the radiation electrode The end is connected to a ground terminal formed on any one of the end faces other than the one end face, and the power supply electrode is connected to a power supply terminal partially or wholly formed on any of the end faces other than the one end face. It is characterized by being connected.
【００１０】また、誘電体または磁性体よりなる基体の
一方主面に、放射電極とこの放射電極の整合部に直接接
続され若しくはギャップを介して容量接続された給電用
電極とが形成され、前記放射電極の一端は前記基体の一
つの端面に形成された容量装荷電極に接続され、前記放
射電極の他端は前記一つの端面以外のいずれかの端面に
形成されたグランド端子に接続され、前記給電用電極
は、前記グランド端子が形成された端面に一部若しくは
全部が形成された給電端子に接続されてなることを特徴
とする。Further, a radiation electrode and a power feeding electrode directly connected to a matching portion of the radiation electrode or capacitively connected via a gap are formed on one main surface of a substrate made of a dielectric material or a magnetic material. One end of the radiation electrode is connected to a capacitance loading electrode formed on one end face of the base, and the other end of the radiation electrode is connected to a ground terminal formed on any end face other than the one end face, The power feeding electrode is connected to a power feeding terminal which is partially or wholly formed on the end face on which the ground terminal is formed.
【００１１】また、前記放射電極がストリップライン
状、コ字状、ミアンダ状若しくはクランク軸形状をなす
ことを特徴とする。Further, the radiation electrode has a strip line shape, a U shape, a meandering shape, or a crankshaft shape.
【００１２】また、誘電体または磁性体よりなる基体の
一つの端面に放射電極が形成され、前記一つの端面と該
一つの端面に対向する端面との間に貫通孔が形成され、
該貫通孔の内周には給電用電極が形成され、前記放射電
極の一端は前記一つの端面に隣接する一つの端面に形成
された容量装荷電極に接続され、前記放射電極の他端は
前記一つの端面に隣接する他の端面に形成されたグラン
ド端子に接続されてなることを特徴とする。A radiation electrode is formed on one end surface of the base made of a dielectric or magnetic material, and a through hole is formed between the one end surface and the end surface opposite to the one end surface.
A feeding electrode is formed on the inner circumference of the through hole, one end of the radiation electrode is connected to a capacitance loading electrode formed on one end face adjacent to the one end face, and the other end of the radiation electrode is connected to the other end. It is characterized in that it is connected to a ground terminal formed on another end face adjacent to one end face.
【００１３】また、本発明にかかる通信機は、表面実装
型アンテナを搭載してなることを特徴とする。Further, the communication device according to the present invention is characterized in that a surface mount type antenna is mounted.
【００１４】以上のように、本発明は、放射電極を基体
の主面または端面に、ストリップライン状またはミアン
ダ状に形成しているので、波長短縮が図られ、さらに、
基体の端面に容量装荷電極を配置して波長短縮を図って
いるので、一層の小型化が可能である。しかも、放射電
極を屈曲させることにより、チップサイズをさらに小さ
くすることができる。そのうえ、基体の表面および端面
に放射電極、容量装荷電極などがあるので、周波数など
の特性調整が容易となる。また、グランド端子および給
電端子を基体の同一端面に形成すれば、製造において電
極を印刷する工程が削減される。As described above, according to the present invention, since the radiation electrode is formed on the main surface or the end surface of the substrate in a strip line shape or a meandering shape, the wavelength can be shortened, and further,
Since the capacitance loading electrode is arranged on the end surface of the substrate to shorten the wavelength, further miniaturization is possible. Moreover, by bending the radiation electrode, the chip size can be further reduced. In addition, since the radiation electrode, the capacitance loading electrode and the like are provided on the surface and the end face of the substrate, it becomes easy to adjust the characteristics such as frequency. Further, if the ground terminal and the power supply terminal are formed on the same end face of the base, the step of printing the electrodes in manufacturing can be reduced.
【００１５】また、本発明の表面実装型アンテナを搭載
してなる通信機は、アンテナの占有容量が小さくて済む
ので、搭載されるアンテナの所在を外部から目立たなく
することができる。Further, in the communication device equipped with the surface mount antenna of the present invention, the occupied capacity of the antenna can be small, so that the location of the installed antenna can be made inconspicuous from the outside.
【００１６】[0016]
【発明の実施の形態】本発明の第一の実施例にかかる表
面実装型アンテナの構成を図１を用いて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A configuration of a surface mount antenna according to a first embodiment of the present invention will be described with reference to FIG.
【００１７】図１において、１０は表面実装型アンテナ
であり、誘電体または磁性体からなる矩形状の基体１を
備える。基体１の一つの端面１ａにはグランド端子２と
給電端子３とが分割して形成されている。前記一つの端
面１ａに対向する他の端面１ｂには容量装荷電極４が形
成されている。基体１の表面には、ストリップライン状
の放射電極５が形成され、この放射電極５の両端はグラ
ンド端子２および容量装荷電極４にそれぞれ接続されて
いる。また、基体１の表面には、屈曲した給電用電極６
が形成され、この給電用電極６の一端は放射電極５の整
合部５ｄに接続され、他端は給電端子３に接続されてい
る。In FIG. 1, reference numeral 10 denotes a surface mount antenna, which has a rectangular base 1 made of a dielectric material or a magnetic material. A ground terminal 2 and a power supply terminal 3 are separately formed on one end surface 1a of the base 1. A capacitance loading electrode 4 is formed on the other end surface 1b facing the one end surface 1a. A stripline-shaped radiation electrode 5 is formed on the surface of the substrate 1, and both ends of the radiation electrode 5 are connected to the ground terminal 2 and the capacitance loading electrode 4, respectively. In addition, on the surface of the base 1, a bent power supply electrode 6 is provided.
Is formed, one end of the power supply electrode 6 is connected to the matching portion 5d of the radiation electrode 5, and the other end is connected to the power supply terminal 3.
【００１８】このように構成される表面実装型アンテナ
１０は、電極１１ａおよび１１ｂの形成された基板、例
えばプリント基板に載置され、電極１１ａとグランド端
子２、および電極１１ｂと給電端子３がそれぞれ半田接
続される。The surface mount antenna 10 thus constructed is placed on a substrate having electrodes 11a and 11b formed thereon, for example, a printed circuit board, and the electrode 11a and the ground terminal 2 and the electrode 11b and the power feeding terminal 3 are respectively provided. Soldered.
【００１９】表面実装型アンテナ１０の概略の電気的等
価回路は、図６に示すようになる。すなわち、Ｃはグラ
ンド端子２と容量装荷電極４との間に形成される装荷容
量、Ｒは放射抵抗、Ｌは放射電極５のインダクタンスで
あり、これらの容量Ｃ、放射抵抗Ｒおよびインダクタン
スＬが並列に接続されて並列共振回路を構成している。
そして、基板１１の電極１１ｂ、給電端子３および給電
用電極６を介して、放射電極５に印加された高周波信号
ｆは並列共振して放射電極５から電波となって放射され
る。A schematic electrical equivalent circuit of the surface mount antenna 10 is as shown in FIG. That is, C is a loading capacitance formed between the ground terminal 2 and the capacitive loading electrode 4, R is a radiation resistance, L is an inductance of the radiation electrode 5, and these capacitance C, radiation resistance R, and inductance L are connected in parallel. Are connected to form a parallel resonant circuit.
Then, the high frequency signal f applied to the radiation electrode 5 via the electrode 11b of the substrate 11, the power feeding terminal 3 and the power feeding electrode 6 resonates in parallel and is radiated as a radio wave from the radiation electrode 5.
【００２０】次に、本発明の第２の実施例にかかる表面
実装型アンテナの構成を図２を用いて説明する。本実施
例にかかる表面実装型アンテナ１０ａは、第１の実施例
に対し、放射電極５ａの形状をクランク軸形状としたも
のである。その他は、第１の実施例と同様なので、同一
符号を付してその説明は省略する。また、図６に示す電
気的等価回路も第１の実施例と同様である。Next, the structure of the surface mount antenna according to the second embodiment of the present invention will be described with reference to FIG. The surface mount antenna 10a according to the present embodiment differs from the first embodiment in that the radiation electrode 5a has a crankshaft shape. Since the other points are the same as those in the first embodiment, the same reference numerals are given and the description thereof is omitted. The electrically equivalent circuit shown in FIG. 6 is also similar to that of the first embodiment.
【００２１】本実施例は、放射電極５ａの形状をクラン
ク軸形状に屈曲させることにより、放射電極５ａの長さ
寸法を拡大させ、第１の実施例と同じチップサイズでも
って低い周波数に対応できるものである。このことか
ら、同じ周波数ならば、チップサイズを小型にできるこ
ととなる。In this embodiment, the length dimension of the radiation electrode 5a is expanded by bending the radiation electrode 5a into a crankshaft shape, and it is possible to cope with a low frequency with the same chip size as in the first embodiment. It is a thing. Therefore, if the frequency is the same, the chip size can be reduced.
【００２２】次に、本発明の第３の実施例にかかる表面
実装型アンテナの構成を図３を用いて説明する。本実施
例にかかる表面実装型アンテナ１０ｂは、第１の実施例
に対し、給電端子３と放射電極５の整合部５ｅとの接続
を基体１の一つの端面１ａにおいて行い、グランド端子
２と給電端子３とを細い電極で接続したものである。そ
の他は、第１の実施例と同様なので、同一符号を付して
その説明は省略する。また、図６に示す電気的等価回路
も第１の実施例と同様である。Next, the structure of the surface mount antenna according to the third embodiment of the present invention will be described with reference to FIG. The surface-mounted antenna 10b according to the present embodiment is different from the first embodiment in that the feeding terminal 3 and the matching portion 5e of the radiation electrode 5 are connected at one end face 1a of the substrate 1 and the ground terminal 2 and the feeding terminal are connected. The terminal 3 is connected with a thin electrode. Since the other points are the same as those in the first embodiment, the same reference numerals are given and the description thereof is omitted. The electrically equivalent circuit shown in FIG. 6 is also similar to that of the first embodiment.
【００２３】次に、本発明の第４の実施例にかかる表面
実装型アンテナの構成を図４を用いて説明する。本実施
例にかかる表面実装型アンテナ１０ｃは、第１の実施例
に対し、給電端子３ａを基体１の一つの端面１ａに隣接
する他の端面７ａに跨がって設け、この端面７ａに対向
する端面７ｂにストリップライン状の放射電極５ｂを設
け、端面７ａから端面７ｂに向かって貫通孔８を設け、
この貫通孔８の内周に給電用電極６ａを設けて、この給
電用電極６ａを給電端子３ａおよび放射電極５ｂとそれ
ぞれ接続したものである。その他は、第１の実施例と同
様なので、同一符号を付してその説明は省略する。ま
た、図６に示す電気的等価回路も第１の実施例と同様で
ある。Next, the structure of the surface mount antenna according to the fourth embodiment of the present invention will be described with reference to FIG. The surface mount antenna 10c according to the present embodiment is different from that of the first embodiment in that the feeding terminal 3a is provided so as to straddle another end surface 7a adjacent to one end surface 1a of the base 1 and faces the end surface 7a. A stripline-shaped radiation electrode 5b is provided on the end face 7b, and a through hole 8 is provided from the end face 7a to the end face 7b,
A power supply electrode 6a is provided on the inner circumference of the through hole 8, and the power supply electrode 6a is connected to the power supply terminal 3a and the radiation electrode 5b, respectively. Since the other points are the same as those in the first embodiment, the same reference numerals are given and the description thereof is omitted. The electrically equivalent circuit shown in FIG. 6 is also similar to that of the first embodiment.
【００２４】次に、本発明の第５の実施例にかかる表面
実装型アンテナの構成を図５を用いて説明する。本実施
例にかかる表面実装型アンテナ１０ｄは、第１の実施例
に対し、給電端子３に一端が接続された給電用電極６ｂ
の他端を屈曲させて、放射電極５の整合部近傍に配置
し、放射電極５と給電用電極６ｂとの間にギャップｇを
設け、このギャップｇに形成される容量により、給電用
電極６ｂと放射電極５とを電磁界結合させたものであ
る。その他は、第１の実施例と同様なので、同一符号を
付してその説明は省略する。また、電気的等価回路は図
７に示すようになる。すなわち、第１の実施例の電気的
等価回路における装荷容量Ｃ、放射抵抗Ｒおよびインダ
クタンスＬの並列回路に、給電部の容量Ｃｇと高周波信
号ｆとの直列回路が並列接続されたものとなる。Next, the structure of the surface mount antenna according to the fifth embodiment of the present invention will be described with reference to FIG. The surface mount antenna 10d according to the present embodiment is different from the first embodiment in that the feeding electrode 6b has one end connected to the feeding terminal 3.
Is bent near the matching portion of the radiation electrode 5, a gap g is provided between the radiation electrode 5 and the feeding electrode 6b, and the capacitance formed in the gap g causes the feeding electrode 6b to be bent. And the radiation electrode 5 are electromagnetically coupled. Since the other points are the same as those in the first embodiment, the same reference numerals are given and the description thereof is omitted. The electrical equivalent circuit is as shown in FIG. That is, a parallel circuit of the loading capacitance C, the radiation resistance R and the inductance L in the electrically equivalent circuit of the first embodiment is connected in parallel with a series circuit of the capacitance Cg of the power feeding portion and the high frequency signal f.
【００２５】なお、上記各実施例においては、グランド
端子および給電端子が基体の同一端面に形成される場合
について説明したが、これら端子は互いに異なる端面に
形成されてもよい。In each of the above embodiments, the case where the ground terminal and the power feeding terminal are formed on the same end face of the base body has been described, but these terminals may be formed on different end faces.
【００２６】次に、上記第１乃至第５の実施例にかかる
表面実装型アンテナを搭載した通信機を図８に示す。表
面実装型アンテナ１０（１０ａ乃至１０ｄのいずれか）
は、通信機９のセット基板（またはそのサブ基板）９ａ
にグランド端子および給電端子を半田接続して実装され
る。Next, FIG. 8 shows a communication device equipped with the surface mount type antenna according to the first to fifth embodiments. Surface mount antenna 10 (any one of 10a to 10d)
Is a set board (or its sub-board) 9a of the communication device 9
It is mounted by soldering the ground terminal and the power supply terminal to.
【００２７】[0027]
【発明の効果】本発明は、基体の表面に放射電極を形成
するとともに、容量装荷電極を配置しているので、電極
形成が容易となり、かつ、小型化を図ることができる。
また、放射電極をミアンダ状に屈曲させることにより、
さらに小型化に対応できることとなる。また、基体の表
面および端面に放射電極、容量装荷電極などがあるの
で、周波数などの特性調整が容易となる。また、グラン
ド端子および給電端子を基体の同一端面に形成すれば、
製造において導体を印刷する工程が削減される。According to the present invention, since the radiation electrode is formed on the surface of the substrate and the capacitance loading electrode is arranged, the electrode can be easily formed and the size can be reduced.
Also, by bending the radiation electrode in a meandering shape,
Further miniaturization can be supported. Further, since the radiation electrode, the capacitance loading electrode, and the like are provided on the surface and the end face of the base, it becomes easy to adjust the characteristics such as frequency. If the ground terminal and the power supply terminal are formed on the same end surface of the base,
The steps of printing conductors in manufacturing are reduced.
【００２８】また、本発明の表面実装型アンテナを搭載
してなる通信機は、アンテナの占有容量が小さくて済む
ので、搭載されるアンテナの所在を外部から目立たなく
することができる。Further, since the communication device equipped with the surface-mounted antenna of the present invention has a small antenna occupation capacity, the location of the mounted antenna can be made inconspicuous from the outside.
【図１】本発明の第１の実施例にかかる表面実装型アン
テナを示す斜視図である。FIG. 1 is a perspective view showing a surface mount antenna according to a first embodiment of the present invention.
【図２】本発明の第２の実施例にかかる表面実装型アン
テナを示す斜視図である。FIG. 2 is a perspective view showing a surface mount antenna according to a second embodiment of the present invention.
【図３】本発明の第３の実施例にかかる表面実装型アン
テナを示す斜視図である。FIG. 3 is a perspective view showing a surface mount antenna according to a third embodiment of the present invention.
【図４】本発明の第４の実施例にかかる表面実装型アン
テナを示す斜視図である。FIG. 4 is a perspective view showing a surface mount antenna according to a fourth embodiment of the present invention.
【図５】本発明の第５の実施例にかかる表面実装型アン
テナを示す斜視図である。FIG. 5 is a perspective view showing a surface mount antenna according to a fifth embodiment of the present invention.
【図６】図１乃至図４に示す表面実装型アンテナの電気
的等価回路図である。6 is an electrical equivalent circuit diagram of the surface mount antenna shown in FIGS. 1 to 4. FIG.
【図７】図５に示す表面実装型アンテナの電気的等価回
路図である。FIG. 7 is an electrical equivalent circuit diagram of the surface mount antenna shown in FIG.
【図８】本発明にかかる通信機を示す斜視図である。FIG. 8 is a perspective view showing a communication device according to the present invention.
【図９】従来の表面実装型アンテナを示す斜視図であ
る。FIG. 9 is a perspective view showing a conventional surface mount antenna.
１ 基体 １ａ 対向する一つの端面 １ｂ 対向する他の端面 ２ グランド端子 ３ 給電端子 ４ 容量装荷電極 ５、５ａ、５ｂ 放射電極 ６、６ａ 給電用電極 ７ａ 隣接する一つの端面 ７ｂ 隣接する他の端面 ８ 貫通孔 １０、１０ａ、１０ｂ、１０ｃ、１０ｄ 表面実装
型アンテナ １１ 基板 １１ａ、１１ｂ 電極1 Base 1a One End Faced 1b Other End Faced 2 Ground Terminal 3 Feeding Terminal 4 Capacitance Loading Electrode 5, 5a, 5b Radiating Electrode 6, 6a Feeding Electrode 7a Adjacent One End Face 7b Adjacent Another End Face 8 Through holes 10, 10a, 10b, 10c, 10d Surface mount type antenna 11 Substrate 11a, 11b Electrode
Claims (5)
主面に、放射電極とこの放射電極の整合部に直接接続さ
れ若しくはギャップを介して容量接続された給電用電極
とが形成され、前記放射電極の一端は前記基体の一つの
端面に形成された容量装荷電極に接続され、前記放射電
極の他端は前記一つの端面以外のいずれかの端面に形成
されたグランド端子に接続され、前記給電用電極は、前
記一つの端面以外のいずれかの端面に一部若しくは全部
が形成された給電端子に接続されてなることを特徴とす
る表面実装型アンテナ。1. A radiation electrode and a power feeding electrode directly connected to a matching portion of the radiation electrode or capacitively connected via a gap are formed on one main surface of a substrate made of a dielectric material or a magnetic material. One end of the radiation electrode is connected to a capacitance loading electrode formed on one end face of the base, and the other end of the radiation electrode is connected to a ground terminal formed on any end face other than the one end face, The surface mount antenna, wherein the power supply electrode is connected to a power supply terminal which is partially or wholly formed on any of the end faces other than the one end face.
主面に、放射電極とこの放射電極の整合部に直接接続さ
れ若しくはギャップを介して容量接続された給電用電極
とが形成され、前記放射電極の一端は前記基体の一つの
端面に形成された容量装荷電極に接続され、前記放射電
極の他端は前記一つの端面以外のいずれかの端面に形成
されたグランド端子に接続され、前記給電用電極は、前
記グランド端子が形成された端面に一部若しくは全部が
形成された給電端子に接続されてなることを特徴とする
表面実装型アンテナ。2. A radiation electrode and a power feeding electrode directly connected to a matching portion of the radiation electrode or capacitively connected via a gap are formed on one main surface of a substrate made of a dielectric material or a magnetic material. One end of the radiation electrode is connected to a capacitance loading electrode formed on one end face of the base, and the other end of the radiation electrode is connected to a ground terminal formed on any end face other than the one end face, The surface mount antenna, wherein the power supply electrode is connected to a power supply terminal which is partially or wholly formed on the end surface on which the ground terminal is formed.
字状、ミアンダ状若しくはクランク軸形状をなすことを
特徴とする請求項１または２に記載の表面実装型アンテ
ナ。3. The surface mount antenna according to claim 1, wherein the radiation electrode has a strip line shape, a U shape, a meandering shape, or a crankshaft shape.
の端面に放射電極が形成され、前記一つの端面と該一つ
の端面に対向する端面との間に貫通孔が形成され、該貫
通孔の内周には給電用電極が形成され、前記放射電極の
一端は前記一つの端面に隣接する一つの端面に形成され
た容量装荷電極に接続され、前記放射電極の他端は前記
一つの端面に隣接する他の端面に形成されたグランド端
子に接続されてなることを特徴とする表面実装型アンテ
ナ。4. A radiation electrode is formed on one end surface of a substrate made of a dielectric or magnetic material, and a through hole is formed between the one end surface and an end surface opposite to the one end surface. A power supply electrode is formed on the inner circumference of the radiation electrode, one end of the radiation electrode is connected to a capacitance loading electrode formed on one end face adjacent to the one end face, and the other end of the radiation electrode is the one end face. A surface mount antenna, which is connected to a ground terminal formed on the other end face adjacent to.
実装型アンテナを搭載してなることを特徴とする通信
機。5. A communication device comprising the surface mount antenna according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25620896A JP3159084B2 (en) | 1995-09-28 | 1996-09-27 | Surface mount antenna and communication device using the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25103995 | 1995-09-28 | ||
| JP7-251039 | 1995-09-28 | ||
| JP25620896A JP3159084B2 (en) | 1995-09-28 | 1996-09-27 | Surface mount antenna and communication device using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09153734A true JPH09153734A (en) | 1997-06-10 |
| JP3159084B2 JP3159084B2 (en) | 2001-04-23 |
Family
ID=26540027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25620896A Expired - Lifetime JP3159084B2 (en) | 1995-09-28 | 1996-09-27 | Surface mount antenna and communication device using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3159084B2 (en) |
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