JP3180684B2 - antenna - Google Patents

antenna

Info

Publication number
JP3180684B2
JP3180684B2 JP25155596A JP25155596A JP3180684B2 JP 3180684 B2 JP3180684 B2 JP 3180684B2 JP 25155596 A JP25155596 A JP 25155596A JP 25155596 A JP25155596 A JP 25155596A JP 3180684 B2 JP3180684 B2 JP 3180684B2
Authority
JP
Japan
Prior art keywords
electrode layer
radiation electrode
antenna
radiation
layer
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.)
Expired - Fee Related
Application number
JP25155596A
Other languages
Japanese (ja)
Other versions
JPH1098330A (en
Inventor
茂一 伊藤
信彦 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP25155596A priority Critical patent/JP3180684B2/en
Priority to DE69719429T priority patent/DE69719429T2/en
Priority to EP97116385A priority patent/EP0831548B1/en
Priority to NO19974384A priority patent/NO320921B1/en
Publication of JPH1098330A publication Critical patent/JPH1098330A/en
Application granted granted Critical
Publication of JP3180684B2 publication Critical patent/JP3180684B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/005—Patch antenna using one or more coplanar parasitic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/378—Combination of fed elements with parasitic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/378—Combination of fed elements with parasitic elements
    • H01Q5/385—Two or more parasitic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave

Landscapes

  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
  • Laminated Bodies (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、アンテナに関し、
詳しくは、複数の周波数帯域に対応し、かつ、偏波の選
択が可能なアンテナに関するものである。TECHNICAL FIELD The present invention relates to an antenna,
More specifically, the present invention relates to an antenna that supports a plurality of frequency bands and allows selection of polarization.

【０００２】[0002]

【従来の技術】従来のアンテナを図５から図８を用いて
説明する。図５，図６に示すアンテナ１００は、誘電体
材料からなる基板１０１と、基板１０１の一方主面に形
成された放射電極１０２と、基板１０１の他方主面に形
成された接地電極１０３とからなる。そして、基板１０
１の放射電極１０２に対応する箇所に給電用貫通孔１０
４が設けられている。この給電用貫通孔１０４に、基板
１０１の他方主面側から基板１０１を貫通するように、
放射電極１０２に対して給電するためのコネクタ１０５
が挿入される。コネクタ１０５は、ハンダ１０６ａによ
り放射電極１０２と導通されるとともに、ハンダ１０６
ａおよびハンダ１０６ｂにより基板１０１に固定され
る。そして、このアンテナ１００が円偏波を受信するも
ので、放射電極１０２には、図５に示すように、縮退分
離部１０２ａが設けられている。2. Description of the Related Art A conventional antenna will be described with reference to FIGS. The antenna 100 shown in FIGS. 5 and 6 includes a substrate 101 made of a dielectric material, a radiation electrode 102 formed on one main surface of the substrate 101, and a ground electrode 103 formed on the other main surface of the substrate 101. Become. And the substrate 10
Power supply through-hole 10 at a position corresponding to one radiation electrode 102.
4 are provided. In the power supply through hole 104, the substrate 101 is penetrated from the other main surface side of the substrate 101,
Connector 105 for supplying power to radiation electrode 102
Is inserted. The connector 105 is electrically connected to the radiation electrode 102 by the solder 106a, and
a and the solder 106b are fixed to the substrate 101. The antenna 100 receives circularly polarized waves, and the radiation electrode 102 is provided with a degenerate separation section 102a as shown in FIG.

【０００３】次に、図７，図８に示すアンテナ１１０
は、誘電体材料からなる基板１１１と、基板１１１の一
方主面に形成された放射電極１１２と、基板１１１の他
方主面に形成された接地電極１１３とからなる。そし
て、基板１１１の放射電極１１２に対応する箇所に給電
用貫通孔１１４が設けられている。この給電用貫通孔１
１４に、基板１１１の他方主面側から基板１１１を貫通
するように、放射電極１１２に対して給電するためのコ
ネクタ１１５が挿入される。コネクタ１１５は、ハンダ
１１６ａにより放射電極１１２と導通されるとともに、
ハンダ１１６ａおよびハンダ１１６ｂにより基板１１１
に固定される。そして、このアンテナ１１０は直線偏波
を受信するもので、アンテナ１００の放射電極１０２と
は異なり、図７に示すように、放射電極１１２に縮退分
離部が設けられていない。Next, the antenna 110 shown in FIGS.
Is composed of a substrate 111 made of a dielectric material, a radiation electrode 112 formed on one main surface of the substrate 111, and a ground electrode 113 formed on the other main surface of the substrate 111. Then, the feeding through hole 114 is provided at a position corresponding to the radiation electrode 11 2 of the substrate 111. This feed through hole 1
A connector 115 for feeding power to the radiation electrode 112 is inserted into the substrate 14 so as to penetrate the substrate 111 from the other main surface side of the substrate 111. The connector 115 is electrically connected to the radiation electrode 112 by the solder 116a,
The substrate 111 is formed by the solder 116a and the solder 116b.
Fixed to The antenna 110 receives linearly polarized waves. Unlike the radiation electrode 102 of the antenna 100, the radiation electrode 112 is not provided with a degenerate separation section, as shown in FIG.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、上記従
来例のアンテナは、それぞれ受信する周波数帯域が離れ
ており、また、受信する偏波も異なる。このような離れ
た周波数帯域を同じに受信しようとする場合、 ２つ
のアンテナを並べて配置する、 １枚の基板に２つの
放射パターンを形成し、それぞれの放射電極に給電する
アンテナを用いる、の方法が考えられる。However, the above-mentioned antennas of the prior art have different frequency bands to receive and different polarizations to receive. When trying to receive such separated frequency bands at the same time, a method of arranging two antennas side by side, forming two radiation patterns on one substrate, and using antennas that feed the respective radiation electrodes is used. Can be considered.

【０００５】しかし、この、，のどちらの場合も、
異なる周波数帯域に対応している２つの放射電極を、互
いに干渉しないように、十分な間隔を持って配置しなけ
ればならず、また、放射電極それぞれにコネクタ等の給
電手段を設けなければならなかった。このため、アンテ
ナの小型化の妨げとなっていた。[0005] However, in both cases,
Two radiation electrodes corresponding to different frequency bands must be arranged at a sufficient interval so as not to interfere with each other, and each radiation electrode must be provided with a power supply means such as a connector. Was. This has hindered miniaturization of the antenna.

【０００６】したがって、本発明の目的は、複数の周波
数帯域に対応し、かつ、偏波の選択が可能で、小型化さ
れたアンテナを提供することにある。Accordingly, it is an object of the present invention to provide a miniaturized antenna that can handle a plurality of frequency bands and can select a polarization.

【０００７】[0007]

【課題を解決するための手段】上記目的を達成するため
に、本発明は、複数の誘電体層と、第１放射電極層と、
第２放射電極層と、接地電極層と、を有し、前記第１放
射電極層、第２放射電極層、接地電極層をそれぞれ別個
の誘電体層上に形成し、各誘電体層を積層してなるアン
テナであって、前記第２放射電極層を略Ｌ字状に形成
し、前記第１放射電極層を囲むように少なくとも１つ配
置するとともに、前記第１放射電極層と前記第２放射電
極層に互いに対応して容量結合部を設け、前記第１放射
電極層に給電部を設け、前記第２放射電極層と前記接地
電極層を貫通孔により導通したこと、を特徴とする。ま
た、複数の誘電体層と、第１放射電極層と、第２放射電
極層と、接地電極層と、を有し、前記第１放射電極層、
第２放射電極層、接地電極層をそれぞれ別個の誘電体層
上に形成し、各誘電体層を積層してなるアンテナであっ
て、前記第２放射電極層を少なくとも２つで形成し、前
記第１放射電極層を囲むように、前記第１放射電極層の
中心点を基準として、互いに直交方向に配置するととも
に、前記第１放射電極層と前記第２放射電極層に互いに
対応して容量結合部を設け、前記第１放射電極層に給電
部を設け、前記第２放射電極層と前記接地電極層を貫通
孔により導通したこと、を特徴とする。In order to achieve the above object, the present invention provides a method for forming a plurality of dielectric layers, a first radiation electrode layer,
A second radiation electrode layer and a ground electrode layer, wherein the first radiation electrode layer, the second radiation electrode layer, and the ground electrode layer are formed on separate dielectric layers, respectively, and the dielectric layers are laminated; The second radiation electrode layer is formed in a substantially L-shape, at least one is disposed so as to surround the first radiation electrode layer, and the first radiation electrode layer and the second radiation electrode layer The radiation electrode layers are provided with capacitive coupling portions corresponding to each other, the first radiation electrode layer is provided with a power supply portion, and the second radiation electrode layer and the ground electrode layer are electrically connected by through holes. A first radiation electrode layer, a first radiation electrode layer, a second radiation electrode layer, and a ground electrode layer;
An antenna formed by forming a second radiation electrode layer and a ground electrode layer on separate dielectric layers, respectively, and laminating each dielectric layer, wherein the second radiation electrode layer is formed by at least two layers; The first radiating electrode layers are arranged so as to surround the first radiating electrode layers in directions orthogonal to each other with reference to a center point of the first radiating electrode layers.
In the corresponding provided a capacitive coupling portion together with the first radiation electrode layer and the second radiation electrode layer, a feeding part provided in the first radiation electrode layer, and the second radiation electrode layer the ground electrode layer It is characterized by being electrically connected by a through hole.

【０００８】これにより、第１放射電極層が１つの周波
数帯域に対応したアンテナとして作用するとともに、第
１放射電極層と第２放射電極層が容量結合して別のスト
リップ線路が形成されていることになり、別の周波数帯
域に対応したアンテナとして作用する。よって、１つの
ブロックで複数の周波数帯域に対応したアンテナが得ら
れ、また、放射電極に対する給電も１箇所の給電部で済
み、小型化が達成される。Accordingly, the first radiation electrode layer functions as an antenna corresponding to one frequency band, and the first radiation electrode layer and the second radiation electrode layer are capacitively coupled to form another strip line. That is, the antenna functions as an antenna corresponding to another frequency band. Therefore, an antenna corresponding to a plurality of frequency bands can be obtained with one block, and the power supply to the radiation electrode can be performed at only one power supply unit, thereby achieving downsizing.

【０００９】また、容量結合部における容量値の調整
や、容量結合部を配置する位置により偏波の選択が可能
となる。Further, it is possible to adjust the capacitance value in the capacitive coupling portion and to select the polarization depending on the position where the capacitive coupling portion is arranged.

【００１０】[0010]

【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。図１，図２において、１はストリ
ップライン型のアンテナであり、セラミックシートから
なる誘電体層１１ａ，１１ｂ，１１ｃと、誘電体層１１
ａの上層に配置され誘電体層１１ａとほぼ同じ面積を有
する接地電極層１２と、誘電体層１１ｂの上層に配置さ
れた略正方形状の第１放射電極層１３と、誘電体層１１
ｃの上層に配置され第１放射電極層１３が配置されてい
ない部分に対応する位置に略Ｌ字状に配置される第２放
射電極層１４と、第１放射電極層１３に給電するために
誘電体層１１ａの裏面から第１放射電極層１３に向かっ
て形成される給電用貫通孔１５と、第２放射電極層１４
を接地電極層１２と接続するための複数の貫通孔１６
と、第１放射電極層１３と第２放射電極層１４とを容量
結合するために、第１放射電極層１３および第２放射電
極層１４のそれぞれに対応して突出して形成される容量
結合部１７ａ，１７ｂとから構成されている。Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, reference numeral 1 denotes a strip line type antenna, which includes dielectric layers 11 a, 11 b, and 11 c formed of ceramic sheets and a dielectric layer 11.
a ground electrode layer 12 arranged on the upper layer of the dielectric layer 11a and having substantially the same area as the dielectric layer 11a; a first radiation electrode layer 13 of a substantially square shape arranged on the upper layer of the dielectric layer 11b;
c, a second radiation electrode layer 14 disposed substantially in an L-shape at a position corresponding to a portion where the first radiation electrode layer 13 is not disposed, and a power supply to the first radiation electrode layer 13. a power supply through-hole 15 from the rear surface of the dielectric layer 11a is formed toward the first radiation electrode layer 13, the second radiation electrode layer 14
A plurality of through holes 16 for connecting the ground electrode layer 12
And a capacitive coupling portion protrudingly formed corresponding to each of the first radiation electrode layer 13 and the second radiation electrode layer 14 in order to capacitively couple the first radiation electrode layer 13 and the second radiation electrode layer 14. 17a and 17b.

【００１１】そして、給電用貫通孔１５には、特に図示
はしないが、第１放射電極層１３に対して給電するため
の同軸線路としてコネクタが挿入され、ハンダにより第
１放射電極層１３とコネクタが導通・固定される。Although not shown, a connector is inserted into the power supply through hole 15 as a coaxial line for supplying power to the first radiation electrode layer 13, and the first radiation electrode layer 13 is connected to the connector by soldering. Are conducted and fixed.

【００１２】このように構成されたストリップライン型
のアンテナ1は、第１放射電極層１３と第２放射電極層
１４との間で容量結合部１７ａ，１７ｂにより容量結合
している。そのため、第１放射電極層１３部分が１つの
周波数帯域（高周波側）に対応したアンテナとして機能
を奏するとともに、第１放射電極層１３および第２放射
電極層１４を含めた全体で他の周波数帯域（低周波側）
に対応したアンテナとして機能を奏する。The strip line type antenna 1 configured as described above is capacitively coupled between the first radiation electrode layer 13 and the second radiation electrode layer 14 by the capacitive coupling portions 17a and 17b. Therefore, the first radiation electrode layer 13 portion functions as an antenna corresponding to one frequency band (high frequency side), and the other radiation band including the first radiation electrode layer 13 and the second radiation electrode layer 14 as a whole has a different frequency band. (Low frequency side)
It functions as an antenna corresponding to.

【００１３】次に、本発明の第２の実施の形態に係るア
ンテナ２０を，図３を用いて説明する。なお、アンテナ
２０において、図1に示したアンテナ１と同一の構成箇
所については同一番号を付しその説明を省略する。Next, an antenna 20 according to a second embodiment of the present invention will be described with reference to FIG. In the antenna 20, the same components as those of the antenna 1 shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

【００１４】このアンテナ２０がアンテナ１と異なる点
は、略正方形に形成された第１放射電極層１３の４辺す
べてを囲む位置に対応する部分に略短冊状の第２放射電
極層２２，２３，２４，２５が配置され、第１放射電極
層１３と第２放射電極層２２，２３，２４，２５とを容
量結合するための容量結合部１７ａ，１７ｂ，１７ｃ，
１７ｄが配置されているところである。The antenna 20 is different from the antenna 1 in that a substantially rectangular second radiation electrode layer 22, 23 is provided at a position corresponding to a position surrounding all four sides of the first radiation electrode layer 13 formed in a substantially square shape. , 24, 25, and capacitive coupling portions 17a, 17b, 17c, for capacitively coupling the first radiation electrode layer 13 and the second radiation electrode layers 22, 23, 24, 25.
17d is located here.

【００１５】このアンテナ２０は、第１放射電極層１３
で１つの周波数帯域に、第１放射電極層１３および第２
放射電極層２２，２３で他の１つの周波数帯域に、第１
放射電極層１３および第２放射電極層２４，２５でさら
に他の１つの周波数帯域に対応したマイクロストリップ
アンテナとして機能を奏する。The antenna 20 includes a first radiation electrode layer 13
In one frequency band, the first radiation electrode layer 13 and the second
In the other one frequency band by the radiation electrode layers 22 and 23, the first
The radiation electrode layer 13 and the second radiation electrode layers 24 and 25 function as a microstrip antenna corresponding to another frequency band.

【００１６】尚、特に図示はしないが、このアンテナ２
０において、第１の実施の形態に示したアンテナ１と同
様に、第２放射電極層２２，２３を結合して略Ｌ字状に
形成してもよく、第２放射電極層２４，２５を結合して
略Ｌ字状に形成してもよい。Although not shown, this antenna 2
0, the second radiation electrode layers 22 and 23 may be combined to form a substantially L-shape as in the antenna 1 shown in the first embodiment. They may be combined to form a substantially L-shape.

【００１７】また、これも特に図示はしないが、アンテ
ナ１において、アンテナ２０と同様に、第２放射電極層
１４を略短冊状に分割して形成してもよい。Although not shown, the second radiation electrode layer 14 of the antenna 1 may be formed into a substantially rectangular shape in the same manner as the antenna 20.

【００１８】上述の第１および第２の実施の形態で示し
たアンテナにおいて、第１放射電極層と第２放射電極層
とは容量結合部により容量結合されているが、この容量
結合部の形成位置をずらせたり、容量結合部をトリミン
グすることにより、受信する低周波側の周波数帯域を簡
単に調整することができるとともに、受信する低周波側
の偏波も選択できる。In the antennas described in the first and second embodiments, the first radiation electrode layer and the second radiation electrode layer are capacitively coupled by the capacitive coupling portion. By shifting the position or trimming the capacitive coupling section, the frequency band on the low frequency side to be received can be easily adjusted, and the polarization on the low frequency side to be received can be selected.

【００１９】また、この容量結合部は積層型であり特別
な製造工程を必要としないため形成が容易であるととも
に、厚みが薄いためアンテナの低背化が達成できる。Further, since the capacitive coupling portion is a laminated type and does not require a special manufacturing process, it is easy to form, and the thickness is small, so that the antenna can be reduced in height.

【００２０】また、各実施の形態で述べた第１放射電極
層１３は、図４に示すように、縮退分離部１３ａを有す
る形状として、第１放射電極層１３で受信する高周波側
の偏波を選択することもできる。尚、図４において、縮
退分離部１３ａ以外の構成部分は、第１の実施の形態で
示したマイクロストリップアンテナと同一であるため、
同一番号を付しその説明を省略する。As shown in FIG. 4, the first radiation electrode layer 13 described in each embodiment has a shape having a degenerate separation portion 13a so that the high-frequency side polarization wave received by the first radiation electrode layer 13 can be obtained. Can also be selected. In FIG. 4, the components other than the degeneration / separation unit 13a are the same as those of the microstrip antenna shown in the first embodiment.
The same reference numerals are given and the description is omitted.

【００２１】このように、本発明のアンテナでは、１つ
の周波数帯域（高周波側）に対応している第１放射電極
層において偏波の設定ができるとともに、他の周波数帯
域（低周波側）に対応している第１放射電極層と第２放
射電極層を含めた全体においても偏波の選択が可能とな
る。As described above, according to the antenna of the present invention, the polarization can be set in the first radiation electrode layer corresponding to one frequency band (high frequency side), and can be set in the other frequency band (low frequency side). Polarization can be selected in the whole including the corresponding first and second radiation electrode layers.

【００２２】また、上述の第１および第２の実施の形態
では、第１放射電極層が略正方形状であるが、略円形状
でもよい。In the first and second embodiments, the first radiation electrode layer has a substantially square shape, but may have a substantially circular shape.

【００２３】また、上記実施の形態で、第２放射電極層
と接地電極層は複数の貫通孔により接続されているが、
第２放射電極層が高周波的に接地されていれば、貫通孔
の個数は適宜選択決定できるものである。In the above embodiment, the second radiation electrode layer and the ground electrode layer are connected by a plurality of through holes.
If the second radiation electrode layer is grounded at a high frequency, the number of through holes can be appropriately selected and determined.

【００２４】尚、上述の実施の形態では、セラミックシ
ートを用いて誘電体層を形成しているが、最下層のセラ
ミックシートはアルミナ基板や窒化アルミ基板などでも
よい。In the above embodiment, the dielectric layer is formed using a ceramic sheet. However, the lowermost ceramic sheet may be an alumina substrate, an aluminum nitride substrate, or the like.

【００２５】また、本発明のアンテナは、複数のセラミ
ックシートと複数の電極層を積層した後、焼成すること
によって得られるものであり、特に図示はしないが、大
きな１枚のセラミックシート上に複数の電極パターンを
形成し、焼成した後に分割切断することによって、一度
に大量のアンテナを製造することができるため、コスト
ダウンが図れる。The antenna of the present invention is obtained by laminating a plurality of ceramic sheets and a plurality of electrode layers and then firing them. By forming the electrode pattern described above, firing and then cutting the antenna pattern, a large number of antennas can be manufactured at one time, so that the cost can be reduced.

【００２６】尚、本発明に係るアンテナは、前記実施の
形態に限定するものでなく、その要旨の範囲内で種々に
変形することができる。The antenna according to the present invention is not limited to the above embodiment, but can be variously modified within the scope of the invention.

【００２７】[0027]

【発明の効果】以上のように、本発明によるマイクロス
トリップ型のアンテナでは、第１放射電極層が１つの周
波数帯域に対応したアンテナとして作用するとともに、
第１放射電極層と第２放射電極層が容量結合して別のマ
イクロストリップ線路が形成されていることになり、別
の周波数帯域に対応したアンテナとして機能を奏し、よ
って、１枚の誘電体層上に複数の周波数帯域に対応した
アンテナが得られ、また、放射電極に対する給電も１つ
の給電部で済むため、小型化が達成される。As described above, in the microstrip type antenna according to the present invention, the first radiation electrode layer acts as an antenna corresponding to one frequency band, and
Will be the first radiation electrode layer and the second radiation electrode layer are capacitively coupled to another microstrip line with the form, it exhibits the function as an antenna corresponding to a different frequency band, thus, of one dielectric antenna corresponding to a plurality of frequency bands is obtained on the layer, also because it requires also power supply to the radiation electrode at one feeding unit, miniaturization is achieved.

【００２８】また、容量結合部における容量値の調整
や、容量結合部を配置する位置により偏波の選択が可能
となる。Further, it is possible to adjust the capacitance value of the capacitive coupling portion and to select the polarization depending on the position where the capacitive coupling portion is arranged.

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

【図１】本発明の第１の実施の形態に係るマイクロスト
リップアンテナの構造を示す平面図である。FIG. 1 is a plan view showing a structure of a microstrip antenna according to a first embodiment of the present invention.

【図２】本発明の第１の実施の形態に係るマイクロスト
リップアンテナの構造を示す分解斜視図である。FIG. 2 is an exploded perspective view showing the structure of the microstrip antenna according to the first embodiment of the present invention.

【図３】本発明の第２の実施の形態に係るマイクロスト
リップアンテナの構造を示す平面図である。FIG. 3 is a plan view showing a structure of a microstrip antenna according to a second embodiment of the present invention.

【図４】本発明のマイクロストリップアンテナにおける
第１放射電極部分に縮退分離部を設けた構造を示す平面
図である。FIG. 4 is a plan view showing a structure in which a degenerate separation portion is provided in a first radiation electrode portion in the microstrip antenna of the present invention.

【図５】従来のマイクロストリップアンテナの構造を示
す平面図である。FIG. 5 is a plan view showing a structure of a conventional microstrip antenna.

【図６】図５におけるＢ−Ｂ線断面図である。6 is a sectional view taken along line BB in FIG.

【図７】従来のマイクロストリップアンテナの構造を示
す平面図である。FIG. 7 is a plan view showing a structure of a conventional microstrip antenna.

【図８】図７におけるＣ−Ｃ線断面図である。FIG. 8 is a sectional view taken along line CC in FIG. 7;

【符号の説明】[Explanation of symbols]

１，２０ マイクロストリップアンテナ １１ａ，１１ｂ，１１ｃ 誘電体層 １２ 接地電極層 １３ 第１放射電極層 １４，２２，２３，２４，２５ 第２放射電極層 １５ 給電用貫通孔 １６ 貫通孔 １７ａ，１７ｂ，１７ｃ，１７ｄ 容量結合部1,20 Microstrip antenna 11a, 11b, 11c Dielectric layer 12 Ground electrode layer 13 First radiation electrode layer 14, 22, 23, 24, 25 Second radiation electrode layer 15 Feed through hole 16 Through hole 17a, 17b, 17c, 17d Capacitive coupling part

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭64−4101（ＪＰ，Ａ) 特開 平８−316726（ＪＰ，Ａ) 特開 平７−38328（ＪＰ，Ａ) 特開 平４−357702（ＪＰ，Ａ) 特開 平２−130005（ＪＰ，Ａ) 特開 昭63−169103（ＪＰ，Ａ) 特開 昭59−16402（ＪＰ，Ａ) 特公 昭60−36641（ＪＰ，Ｂ２) 米国特許4069483（ＵＳ，Ａ) 米国特許4370657（ＵＳ，Ａ) 国際公開96／34426（ＷＯ，Ａ１) (58)調査した分野(Int.Cl.7，ＤＢ名) H01Q 13/08 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-64-4101 (JP, A) JP-A-8-316726 (JP, A) JP-A-7-38328 (JP, A) JP-A-4- 357702 (JP, A) JP-A-2-130005 (JP, A) JP-A-63-169103 (JP, A) JP-A-59-16402 (JP, A) JP-B-60-36641 (JP, B2) U.S. Pat. No. 4,069,483 (US, A) U.S. Pat. No. 4,370,657 (US, A) WO 96/34426 (WO, A1) (58) Fields investigated (Int. Cl. 7 , DB name) H01Q 13/08

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 複数の誘電体層と、 第１放射電極層と、 第２放射電極層と、 接地電極層と、を有し、 前記第１放射電極層、第２放射電極層、接地電極層をそ
れぞれ別個の誘電体層上に形成し、各誘電体層を積層し
てなるアンテナであって、 前記第２放射電極層を略Ｌ字状に形成し、前記第１放射
電極層を囲むように少なくとも１つ配置するとともに、 前記第１放射電極層と前記第２放射電極層に互いに対応
して容量結合部を設け、 前記第１放射電極層に給電部を設け、 前記第２放射電極層と前記接地電極層を貫通孔により導
通したこと、 を特徴とするアンテナ。A first radiation electrode layer, a second radiation electrode layer, and a ground electrode layer, wherein the first radiation electrode layer, the second radiation electrode layer, and the ground electrode have a plurality of dielectric layers, a first radiation electrode layer, a second radiation electrode layer, and a ground electrode layer. Layer
Each is formed on a separate dielectric layer, and each dielectric layer is laminated.
An antenna comprising Te, to form the second radiation electrode layer in a substantially L shape, the first radiation
At least one is disposed so as to surround the electrode layer, and corresponds to the first radiation electrode layer and the second radiation electrode layer.
And a feeder is provided in the first radiation electrode layer, and the second radiation electrode layer and the ground electrode layer are guided by through holes.
An antenna characterized by passing through . 【請求項２】 複数の誘電体層と、 第１放射電極層と、 第２放射電極層と、 接地電極層と、を有し、 前記第１放射電極層、第２放射電極層、接地電極層をそ
れぞれ別個の誘電体層上に形成し、各誘電体層を積層し
てなるアンテナであって、 前記第２放射電極層を少なくとも２つで形成し、前記第
１放射電極層を囲むように、前記第１放射電極層の中心
点を基準として、互いに直交方向に配置するとともに、 前記第１放射電極層と前記第２放射電極層に互いに対応
して容量結合部を設け、 前記第１放射電極層に給電部を設け、 前記第２放射電極層と前記接地電極層を貫通孔により導
通したこと、 を特徴とするアンテナ。2. A semiconductor device comprising: a plurality of dielectric layers; a first radiation electrode layer; a second radiation electrode layer; and a ground electrode layer, wherein the first radiation electrode layer, the second radiation electrode layer, and the ground electrode are provided. An antenna in which each layer is formed on a separate dielectric layer, and each dielectric layer is laminated, wherein at least two second radiation electrode layers are formed and surround the first radiation electrode layer. The first radiation electrode layer is disposed in a direction orthogonal to each other with reference to a center point of the first radiation electrode layer, and the first radiation electrode layer and the second radiation electrode layer are provided with capacitive coupling portions corresponding to each other; An antenna, wherein a feeder is provided on the radiation electrode layer, and the second radiation electrode layer and the ground electrode layer are electrically connected by a through hole.
JP25155596A 1996-09-24 1996-09-24 antenna Expired - Fee Related JP3180684B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP25155596A JP3180684B2 (en) 1996-09-24 1996-09-24 antenna
DE69719429T DE69719429T2 (en) 1996-09-24 1997-09-19 antenna
EP97116385A EP0831548B1 (en) 1996-09-24 1997-09-19 Antenna
NO19974384A NO320921B1 (en) 1996-09-24 1997-09-23 Antenna, especially of the laminate type and intended for microwaves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25155596A JP3180684B2 (en) 1996-09-24 1996-09-24 antenna

Publications (2)

Publication Number Publication Date
JPH1098330A JPH1098330A (en) 1998-04-14
JP3180684B2 true JP3180684B2 (en) 2001-06-25

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ID=17224571

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EP (1) EP0831548B1 (en)
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DE (1) DE69719429T2 (en)
NO (1) NO320921B1 (en)

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DE19929689A1 (en) * 1999-06-29 2001-01-11 Siemens Ag Integrable dual band antenna
FI114254B (en) 2000-02-24 2004-09-15 Filtronic Lk Oy Planantennskonsruktion
GB2370158B (en) * 2000-12-13 2004-10-13 Harada Ind Multiband PIFA-type antenna for vehicular applications
JP2004328693A (en) 2002-11-27 2004-11-18 Taiyo Yuden Co Ltd Antenna and dielectric substrate for antenna
JP2004328694A (en) 2002-11-27 2004-11-18 Taiyo Yuden Co Ltd Antenna and wireless communication card
EP1569299B1 (en) 2002-11-27 2008-10-22 Taiyo Yuden Co., Ltd. Antenna, dielectric substrate for antenna, radio communication card
JP4170828B2 (en) 2002-11-27 2008-10-22 太陽誘電株式会社 Antenna and dielectric substrate for antenna
JP2004328703A (en) 2002-11-27 2004-11-18 Taiyo Yuden Co Ltd Antenna
CN1815811B (en) * 2005-01-31 2012-05-09 东南大学 Composite microband printing vibrator wide-band antenna
WO2009155732A1 (en) * 2008-06-25 2009-12-30 北京昆天科微电子技术有限公司 An antenna device and an electronic product of using it
JP2012090251A (en) * 2010-09-24 2012-05-10 Furukawa Electric Co Ltd:The Antenna device
JP5891359B2 (en) * 2011-03-24 2016-03-23 パナソニックＩｐマネジメント株式会社 Double resonance antenna device
CN111247695B (en) * 2017-10-18 2022-08-19 康普技术有限责任公司 Wideband stacked patch radiating element and associated phased array antenna
WO2020261920A1 (en) * 2019-06-26 2020-12-30 株式会社村田製作所 Flexible substrate and antenna module provided with flexible substrate
CN110752442A (en) * 2019-10-16 2020-02-04 西安空间无线电技术研究所 Wide-beam low-width-angle-to-axis-ratio circularly polarized antenna unit and radiation method thereof

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US5420596A (en) * 1993-11-26 1995-05-30 Motorola, Inc. Quarter-wave gap-coupled tunable strip antenna
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NO974384D0 (en) 1997-09-23
DE69719429T2 (en) 2004-01-15
JPH1098330A (en) 1998-04-14
NO320921B1 (en) 2006-02-13
EP0831548A3 (en) 1998-04-01
DE69719429D1 (en) 2003-04-10
EP0831548B1 (en) 2003-03-05
EP0831548A2 (en) 1998-03-25
NO974384L (en) 1998-03-25

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