JP2001024428A - Planar antenna - Google Patents
Planar antennaInfo
- Publication number
- JP2001024428A JP2001024428A JP11193957A JP19395799A JP2001024428A JP 2001024428 A JP2001024428 A JP 2001024428A JP 11193957 A JP11193957 A JP 11193957A JP 19395799 A JP19395799 A JP 19395799A JP 2001024428 A JP2001024428 A JP 2001024428A
- Authority
- JP
- Japan
- Prior art keywords
- planar antenna
- ground plane
- antenna element
- upper case
- small
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Waveguide Aerials (AREA)
- Support Of Aerials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は平面アンテナに関
するものであり、特に、組立の容易化を図った平面アン
テナであって、垂直偏波と水平偏波又は左旋円偏波と右
旋円偏波を夫々送受信できる平面アンテナに関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planar antenna, and more particularly to a planar antenna which is easy to assemble, and which is vertically polarized and horizontally polarized or left-handed and right-handed polarized. And a planar antenna capable of transmitting and receiving each of them.
【０００２】[0002]
【従来の技術】従来の此種平面アンテナを図３に従って
説明する。図に於て１は平面アンテナである。該平面ア
ンテナは方形の金属板から成る平面アンテナ素子２がア
ッパーケース３の裏面に接合され、該平面アンテナ素子
２から所定間隔を有して配設されるグラウンドプレーン
４は、その周縁部が該アッパーケース３とロワーケース
５との接合部位にて支持されて配設されている。又、該
平面アンテナ素子２と該グラウンドプレーン４との間に
は給電導体６，６が配設されており、更に、該グラウン
ドプレーン４の下面に各種電子部品７，７…を搭載した
回路基板８が接合され、そして、該回路基板８の配線パ
ターンにアンテナコード９を接続し、更に、該アンテナ
コード９はコネクタ１０を介して電子機器（図示せず）
に接続され、空中波により送信された各種データを該平
面アンテナ１にて送受信できるように構成されている。2. Description of the Related Art A conventional planar antenna will be described with reference to FIG. In the figure, 1 is a planar antenna. In the planar antenna, a planar antenna element 2 made of a square metal plate is joined to the back surface of an upper case 3, and a ground plane 4 disposed at a predetermined distance from the planar antenna element 2 has The upper case 3 and the lower case 5 are disposed so as to be supported at a joint portion between the upper case 3 and the lower case 5. A power supply conductor 6, 6 is disposed between the planar antenna element 2 and the ground plane 4, and a circuit board on which various electronic components 7, 7,. 8 is connected, and an antenna cord 9 is connected to a wiring pattern of the circuit board 8. The antenna cord 9 is further connected to an electronic device (not shown) via a connector 10.
And the plane antenna 1 can transmit and receive various data transmitted by aerial waves.
【０００３】[0003]
【発明が解決しようとする課題】上記従来例はアッパー
ケースの裏面に平面アンテナ素子を当接して固定し、そ
して、グラウンドプレーンもアッパーケースとロワーケ
ースとの接合部位に嵌合して固定し、その間に給電導体
を配設している。In the above conventional example, a planar antenna element is fixed to the back surface of the upper case by abutting the same, and the ground plane is also fitted and fixed to the joint between the upper case and the lower case. A power supply conductor is provided between them.
【０００４】而して、平面アンテナ特性を効率良く出す
ためには、前記アッパーケース及びグラウンドプレーン
との間隔を所定の間隔に精度良く維持することが必要条
件となるのであるが、上記従来例に於てはアッパーケー
スに対して平面アンテナ素子は所定間隔を有しておら
ず、且つ、該平面アンテナ素子に対して平行、且つ、所
定間隔を有して配設せられるべきグラウンドプレーンも
アッパーケースとロワーケースとの合着部位に嵌合して
固定されるのであるから、該アッパーケース及びロワー
ケースの成形時の寸法精度出しにも難点があり、且つ、
之等平面アンテナ素子及びグラウンドプレーンの組立作
業も前述の精度上の問題を考慮すれば、困難性を伴うこ
とがある。[0004] In order to obtain the planar antenna characteristics efficiently, it is necessary to precisely maintain a predetermined distance between the upper case and the ground plane. In this case, the planar antenna element does not have a predetermined interval with respect to the upper case, and a ground plane to be disposed at a predetermined interval in parallel with the planar antenna element is also provided in the upper case. And the lower case is fitted and fixed at the joint portion, so that there is a difficulty in obtaining dimensional accuracy during molding of the upper case and the lower case, and
The work of assembling the planar antenna element and the ground plane may be difficult in view of the above-described problem of accuracy.
【０００５】そこで、平面アンテナに於て、アッパーケ
ースと平面アンテナ素子及び該平面アンテナに平行、且
つ、所定間隔で配設せられるグラウンドプレーンを所定
間隔を維持して簡易に組立てることができるようにする
ために解決せられるべき技術的課題が生じてくるのであ
り、本発明は該課題を解決することを目的とする。Therefore, in the planar antenna, the upper case, the planar antenna element, and the ground plane arranged in parallel with the planar antenna at a predetermined interval can be easily assembled while maintaining the predetermined interval. Therefore, a technical problem to be solved arises, and an object of the present invention is to solve the problem.
【０００６】[0006]
【課題を解決するための手段】この発明は上記目的を達
成するために提案せられたものであり、方形又は円形の
金属板から成る平面アンテナ素子をグラウンドプレーン
と平行に配置し、該平面アンテナ素子とグラウンドプレ
ーンとの間に給電導体を配置し、該給電導体の一端に同
軸線路の中心導体を接続して前記平面アンテナ素子に給
電し、該同軸線路の外部導体をグラウンドプレーンに接
続して電磁結合により、同軸線路のアンテナコードを介
して平面アンテナ素子に給電するように構成された平面
アンテナに於て、該平面アンテナのアッパーケース裏面
中央部位に、前記平面アンテナ素子を所定間隔を有して
固定するための段部を有する複数の小突部を設け、更
に、該小突部と対応する個所に小孔を開穿した前記平面
アンテナ素子を、該小孔を該小突部に嵌合して固定し、
該平面アンテナ素子から所定間隔を有してグラウンドプ
レーンを配置するために、前記アッパーケースの裏面周
辺部近傍に段部を有する複数の大突部を設け、該大突部
と対応する個所に孔を開穿したグラウンドプレーンを該
孔を該大突部に嵌合して固定することにより、アッパー
ケース及び平面アンテナ素子並びにグラウンドプレーン
相互間の間隔を所定間隔に維持して組立てることができ
るように構成した平面アンテナを提供するものである。SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above-mentioned object, and a planar antenna element formed of a square or circular metal plate is arranged in parallel with a ground plane. A feed conductor is arranged between the element and the ground plane, a center conductor of a coaxial line is connected to one end of the feed conductor to feed power to the planar antenna element, and an outer conductor of the coaxial line is connected to the ground plane. In a planar antenna configured to supply power to a planar antenna element through an antenna cord of a coaxial line by electromagnetic coupling, the planar antenna element has a predetermined interval at a central portion on the back surface of an upper case of the planar antenna. A plurality of small protrusions having steps for fixing the same, and further, the flat antenna element having a small hole perforated at a position corresponding to the small protrusion, The hole is fitted and fixed to the small projections,
In order to arrange the ground plane at a predetermined interval from the planar antenna element, a plurality of large projections having a step are provided near the periphery of the rear surface of the upper case, and holes are formed at positions corresponding to the large projections. By fixing the ground plane with the holes to the large projections and fixing the holes, the space between the upper case, the planar antenna element, and the ground plane can be maintained at a predetermined distance so that the ground plane can be assembled. It is intended to provide a structured planar antenna.
【０００７】[0007]
【発明の実施の形態】以下、本発明の一実施の形態を図
１及び図２従って詳述する。図に於て１１は本発明に係
る平面アンテナである。該平面アンテナ１１は方形又は
円形の金属板から成る平面アンテナ素子１２と、該平面
アンテナ素子１２と平行、且つ、所定間隔を有して配設
されるグラウンドプレーン１３と、該平面アンテナ素子
１２とグラウンドプレーン１３との間に配設される給電
導体１４，１４と、前記グラウンドプレーン１３の裏面
に当接されている回路基板１５とから成り、之等の各構
成要素はアッパーケース１６とロワーケース１７によっ
て形成されるケース１８内に収納される。又、符号１９
はアンテナコードであり、該アンテナコード１９はコネ
クタ２０を介して電子機器（図示せず）に接続されて各
種データを前記平面アンテナ素子１２に送受信できるよ
うに構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In the figure, reference numeral 11 denotes a planar antenna according to the present invention. The planar antenna 11 includes a planar antenna element 12 made of a square or circular metal plate, a ground plane 13 that is parallel to the planar antenna element 12 and that is disposed at a predetermined interval. It comprises power supply conductors 14 and 14 disposed between the ground plane 13 and a circuit board 15 which is in contact with the back surface of the ground plane 13. It is housed in a case 18 formed by 17. Reference numeral 19
Is an antenna code. The antenna code 19 is connected to an electronic device (not shown) via a connector 20 so that various data can be transmitted to and received from the planar antenna element 12.
【０００８】而して、該平面アンテナ１１は、前記平面
アンテナ素子１２とグラウンドプレーン１３との間に配
設される給電導体１４，１４を該平面アンテナ素子１２
の周縁と平行に設け、該平面アンテナ素子１２に対して
給電する給電導体１４，１４に２系統の同軸線路の外部
導体をグラウンドプレーン１３に接続することによっ
て、各給電導体１４，１４から平面アンテナ素子１２へ
電磁結合により給電して水平偏波と垂直偏波とを送受信
するように構成した平面アンテナのみならず、前記平面
アンテナ素子１２に、前記給電部位から当距離に位置す
る摂動素子（図示せず）を設けることにより、左旋円偏
波と右旋円偏波とを該平面アンテナ素子１２へ送受信で
きるように構成された平面アンテナを含むことは当然で
ある。Thus, the planar antenna 11 includes feeder conductors 14, 14 disposed between the planar antenna element 12 and the ground plane 13.
The outer conductors of two coaxial lines are connected to the ground plane 13 to the feed conductors 14 and 14 that feed the flat antenna element 12 in parallel with the periphery of the flat antenna element 12. In addition to a planar antenna configured to transmit and receive horizontally polarized waves and vertically polarized waves by feeding power to the element 12 by electromagnetic coupling, a perturbation element (FIG. (Not shown) naturally includes a planar antenna configured to transmit and receive left-handed and right-handed circularly polarized waves to and from the planar antenna element 12.
【０００９】次に、本発明に係る要旨の一実施の形態を
説明する。図１に示すアッパーケース１６の裏面中央部
位には、前記平面アンテナ素子１２を該アッパーケース
１６から所定間隔Ｈを有して配設するために、前記間隔
Ｈに相当する高さ位置に段部２１ａ，２１ａ…を各別に
有し、その中心部に小突片２１ｂ，２１ｂ…を突設して
成る小突部２１，２１…を設けてある。而して、該小突
部２１，２１…は図示例ではアッパーケース１６の裏面
の中央部位に４個配設し、そして、前記平面アンテナ素
子１２の四隅であって、且つ、前記小突部２１，２１，
２１，２１の小突片２１ｂ，２１ｂ，２１ｂ，２１ｂと
対応位置に小孔１２ａ，１２ａ，１２ａ，１２ａを開穿
し、そして、該小孔１２ａ，１２ａ，１２ａ，１２ａに
夫々対応する前記小突片２１ｂ，２１ｂ，２１ｂ，２１
ｂを挿入してその先端部を溶着等の手段によって固定す
ることにより、該平面アンテナ素子１２はアッパーケー
ス１６の裏面から所定間隔Ｈを有して適正、且つ、容易
に配設されることができる。Next, an embodiment of the gist of the present invention will be described. In order to dispose the planar antenna element 12 at a predetermined distance H from the upper case 16, a stepped portion is provided at a central position on the rear surface of the upper case 16 shown in FIG. 21a, 21a are provided separately, and small protrusions 21, 21,... Formed by projecting small protrusions 21b, 21b. In the illustrated example, four of the small protrusions 21, 21... Are arranged at the central portion on the back surface of the upper case 16, and are located at the four corners of the planar antenna element 12, and 21, 21,
Small holes 12a, 12a, 12a, 12a are formed at positions corresponding to the small projecting pieces 21b, 21b, 21b, 21b of 21 and 21, and the small holes 12a, 12a, 12a, 12a respectively correspond to the small holes 12a, 12a, 12a, 12a. Projecting pieces 21b, 21b, 21b, 21
The flat antenna element 12 can be properly and easily disposed at a predetermined distance H from the back surface of the upper case 16 by inserting the b and fixing the tip portion thereof by welding or the like. it can.
【００１０】即ち、前記小突部２１，２１…の配設位置
は該アッパーケース１６の中央部位に配設されるのであ
るが、その位置は該アッパーケース１６の片側へ偏位し
た位置であってもよい。但し前記グラウンドプレーン１
３及びアッパーケース１６の四隅によって囲まれる線内
であることを可とする。然るときは、該グラウンドプレ
ーン１３を該アッパーケース１６の裏面に配設すると
き、前記平面アンテナ素子１２は該グラウンドプレーン
１３の平面以内に配設されることになり、依って、該グ
ラウンドプレーン１３の略中央部位に突設され、且つ、
該平面アンテナ素子１２とグラウンドプレーン１３との
間であって、且つ、該平面アンテナ素子１２の周縁と平
行に配設される前記給電導体１４，１４が該グラウンド
プレーン１３の裏面の略中央部位に配設される前記回路
基板１５との接続も容易に行われる。That is, the small protrusions 21, 21,... Are arranged at the center of the upper case 16, but the position is deviated to one side of the upper case 16. You may. However, the ground plane 1
3 and within the line surrounded by the four corners of the upper case 16. When the ground plane 13 is disposed on the back surface of the upper case 16, the planar antenna element 12 is disposed within the plane of the ground plane 13. 13 and is protruded from a substantially central portion thereof, and
The feeding conductors 14, 14 disposed between the planar antenna element 12 and the ground plane 13 and in parallel with the periphery of the planar antenna element 12, are located substantially at the center of the back surface of the ground plane 13. The connection with the circuit board 15 provided is also easily performed.
【００１１】又、前記グラウンドプレーン１３は前記平
面アンテナ素子１２に平行に、且つ、所定間隔Ｇを有し
て配設されねばならないが、該所定間隔Ｇを正確に得る
ために、該グラウンドプレーン１３の裏面の四隅近傍に
前記間隔Ｈ及びＧに該平面アンテナ素子１２の厚みを加
算した位置に相当する部位に段部２２ａ，２２ａ…を有
し、その中心部に大突片２２ｂ，２２ｂ…を突設して成
る大突部２２，２２…を設けてある。而して、該大突部
２２，２２…は図示例では該アッパーケース１６の裏面
四隅近傍に各１個宛配設され、そして、該グラウンドプ
レーン１３の四隅であって、且つ、前記大突部２２，２
２，２２，２２の大突片２２ｂ，２２ｂ，２２ｂ，２２
ｂに夫々対応する位置に、該大突片２２ｂ，２２ｂ，２
２ｂ，２２ｂを挿入するための孔１３ａ，１３ａ，１３
ａ，１３ａが開穿されており、該孔１３ａ，１３ａ，１
３ａ，１３ａに夫々対応する前記大突片２２ｂ，２２
ｂ，２２ｂ，２２ｂを挿入してその先端部を溶着等の手
段にて固定することにより、該グラウンドプレーン１３
は前記間隔Ｇを保持して適正、且つ、容易に配設される
ことが可能となる。The ground plane 13 must be disposed in parallel with the planar antenna element 12 and at a predetermined interval G. In order to accurately obtain the predetermined interval G, the ground plane 13 is required. Have step portions 22a, 22a,... At positions corresponding to the positions obtained by adding the thicknesses of the planar antenna elements 12 to the distances H and G near the four corners on the back surface of the rear surface of the rear surface. Are provided. In the illustrated example, one of the large protrusions 22 is provided near each of the four corners of the rear surface of the upper case 16, and the four large protrusions are located at the four corners of the ground plane 13. Parts 22, 2
2, 22, 22 large projecting pieces 22b, 22b, 22b, 22
b, the large protruding pieces 22b, 22b, 2
Holes 13a, 13a, 13 for inserting 2b, 22b
a, 13a are drilled and the holes 13a, 13a, 1
The large protruding pieces 22b and 22 corresponding to 3a and 13a, respectively.
b, 22b, and 22b, and fixing the distal end thereof by welding or the like, the ground plane 13
Can be disposed properly and easily while maintaining the distance G.
【００１２】尚、アッパーケース１６の裏面に突設され
た前記小突部２１及び大突部２２は前記所定間隔ＨとＧ
を保持させるために、前述したように段部２１ａと２２
ａを有し、この中心部に前記小突片２１ｂと大突片２２
ｂとが各別に夫々突設されており、且つ、図示例では前
記段部２１ａ及び２２ａを形成するため、図２に示すよ
うに夫々平面十字状に突設されて成る段部２１ａ及び２
２ａが形成されているので、平面アンテナ素子１２及び
グラウンドプレーン１３を夫々前記各段部２１ａ及び２
２ａに夫々載置するとき、正確に位置決めして載設され
ることができるが、この段部形成手段は之に限定せられ
るべきではなく、前記十字状の形状に代え、三角形状或
いは直線状又は台形状に形成しても全く同一の作用効果
を奏するのである。The small projection 21 and the large projection 22 projecting from the back surface of the upper case 16 are spaced apart from the predetermined distances H and G, respectively.
As described above, the steps 21a and 22
a small projection 21b and the large projection 22
b are respectively protruded from each other, and in the illustrated example, to form the steps 21a and 22a, as shown in FIG.
2a, the planar antenna element 12 and the ground plane 13 are connected to the step portions 21a and 21a, respectively.
2a, they can be accurately positioned and mounted. However, the step forming means should not be limited to this, and instead of the cross shape, a triangular shape or a linear shape can be used. Or, even if it is formed in a trapezoidal shape, the same operation and effect can be obtained.
【００１３】斯くして、アッパーケース１６及び平面ア
ンテナ素子１２並びにグラウンドプレーン１３相互間の
間隔Ｈ及びＧが正確に保持され、且つ、組立ても容易で
あって、平面アンテナとしての特性を効率良く発揮する
ことが可能となる。Thus, the distances H and G between the upper case 16, the planar antenna element 12, and the ground plane 13 are accurately maintained, and are easy to assemble, and efficiently exhibit the characteristics as a planar antenna. It is possible to do.
【００１４】尚、本発明は、本発明の精神を逸脱しない
限り種々の改変を為すことができ、そして、本発明が該
改変されたものに及ぶことは当然である。The present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.
【００１５】[0015]
【発明の効果】本発明は上記一実施の形態にて詳述した
ように、アッパーケースの裏面の略中央部位に該アッパ
ーケースと所定間隔を保持させて平面アンテナ素子を固
定するための小突部を設け、該小突部に平面アンテナに
設けた小孔を嵌着して固定すると共に、該平面アンテナ
素子から所定間隔を有し、且つ、該平面アンテナ素子に
対して平行に配設されるグラウンドプレーンは前記アッ
パーケース裏面の周辺部近傍に突設した大突部に該グラ
ウンドプレーンの周辺部近傍に開穿した孔を嵌着して固
定するので、之等平面アンテナ素子及びグラウンドプレ
ーンの配設及び組立てが極めて容易、且つ、正確に行わ
れる。斯くして、平面アンテナとしての特性を効率良く
発揮させることが可能となり、依って、品質向上及びコ
ストダウンにも寄与する等、正に諸種の著大なる効果を
奏する発明である。As described in detail in the above embodiment, the present invention provides a small protrusion for fixing a planar antenna element at a substantially central portion on the back surface of an upper case while maintaining a predetermined distance from the upper case. A small hole provided in the planar antenna is fitted and fixed to the small projection, and has a predetermined distance from the planar antenna element, and is disposed in parallel with the planar antenna element. The ground plane is fixed by fitting a hole formed in the vicinity of the periphery of the ground plane into a large projection protruding in the vicinity of the periphery of the back surface of the upper case. The arrangement and assembly are very easy and accurate. In this way, it is an invention that can exhibit the characteristics as a planar antenna efficiently, thereby contributing to quality improvement and cost reduction.
【図１】本発明の一実施の形態を示し、平面アンテナの
縦断面図。FIG. 1 shows an embodiment of the present invention and is a longitudinal sectional view of a planar antenna.
【図２】図１の平面アンテナを組立てるため、アッパー
ケースの裏面に小突部及び大突部を突設し、之等小突部
及び大突部に夫々対応の平面アンテナ素子及びグラウン
ドプレーンを載置して固定する状態を示す解説図。FIG. 2 is a plan view showing a small projection and a large projection projecting from the back surface of an upper case in order to assemble the planar antenna of FIG. 1; and a planar antenna element and a ground plane corresponding to the small projection and the large projection, respectively. Explanatory drawing which shows the state which mounts and fixes.
【図３】従来例の平面アンテナの縦断面図。FIG. 3 is a longitudinal sectional view of a conventional planar antenna.
１１ 平面アンテナ １２ 平面アンテナ素子 １２ａ 小孔 １３ グラウンドプレーン １３ａ 孔 １４ 給電導体 １６ アッパーケース ２１ 小突部 ２１ａ 段部 ２１ｂ 小突片 ２２ 大突部 ２２ａ 段部 ２２ｂ 大突片 DESCRIPTION OF SYMBOLS 11 Planar antenna 12 Planar antenna element 12a Small hole 13 Ground plane 13a hole 14 Feeding conductor 16 Upper case 21 Small protrusion 21a Step 21b Small protrusion 22 Large protrusion 22a Step 22b Large protrusion
【手続補正書】[Procedure amendment]
【提出日】平成１１年７月８日（１９９９．７．８）[Submission date] July 8, 1999 (1999.7.8)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図３[Correction target item name] Figure 3
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図３】 FIG. 3
Claims (1)
テナ素子をグラウンドプレーンと平行に配置し、該平面
アンテナ素子とグラウンドプレーンとの間に給電導体を
配置し、該給電導体の一端に同軸線路の中心導体を接続
して前記平面アンテナ素子に給電し、該同軸線路の外部
導体をグラウンドプレーンに接続して電磁結合により、
同軸線路のアンテナコードを介して平面アンテナ素子に
給電するように構成された平面アンテナに於て、 該平面アンテナのアッパーケース裏面中央部位に、前記
平面アンテナ素子を所定間隔を有して固定するための段
部を有する複数の小突部を設け、更に、該小突部と対応
する個所に小孔を開穿した前記平面アンテナ素子を、該
小孔を該小突部に嵌合して固定し、該平面アンテナ素子
から所定間隔を有してグラウンドプレーンを配置するた
めに、前記アッパーケースの裏面周辺部近傍に段部を有
する複数の大突部を設け、該大突部と対応する個所に孔
を開穿したグラウンドプレーンを該孔を該大突部に嵌合
して固定することにより、アッパーケース及び平面アン
テナ素子並びにグラウンドプレーン相互間の間隔を所定
間隔に維持して組立てることができるように構成した平
面アンテナ。1. A planar antenna element made of a square or circular metal plate is arranged in parallel with a ground plane, a feed conductor is arranged between the planar antenna element and the ground plane, and a coaxial line is provided at one end of the feed conductor. The center conductor is connected to feed the planar antenna element, and the outer conductor of the coaxial line is connected to the ground plane by electromagnetic coupling,
In a planar antenna configured to feed power to a planar antenna element through an antenna cord of a coaxial line, the planar antenna element is fixed at a predetermined interval to a central portion of a rear surface of an upper case of the planar antenna. A plurality of small protrusions having a step portion are provided, and the flat antenna element having a small hole formed at a position corresponding to the small protrusion is fixed by fitting the small hole to the small protrusion. In order to dispose the ground plane at a predetermined distance from the planar antenna element, a plurality of large projections having a step are provided near the periphery of the rear surface of the upper case, and a portion corresponding to the large projection is provided. A ground plane having a hole formed therein is fixed by fitting the hole into the large projection, thereby maintaining a predetermined interval between the upper case, the planar antenna element, and the ground plane. A planar antenna configured to be able to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19395799A JP3783226B2 (en) | 1999-07-08 | 1999-07-08 | Planar antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19395799A JP3783226B2 (en) | 1999-07-08 | 1999-07-08 | Planar antenna |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2001024428A true JP2001024428A (en) | 2001-01-26 |
| JP2001024428A5 JP2001024428A5 (en) | 2004-11-25 |
| JP3783226B2 JP3783226B2 (en) | 2006-06-07 |
Family
ID=16316582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19395799A Expired - Fee Related JP3783226B2 (en) | 1999-07-08 | 1999-07-08 | Planar antenna |
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| Country | Link |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7312754B2 (en) | 2005-02-23 | 2007-12-25 | Mitsumi Electric Co., Ltd. | Planar antenna capable of decreasing the number of parts |
| JP2008011137A (en) * | 2006-06-29 | 2008-01-17 | Tokai Rika Co Ltd | Antenna unit |
| US7498998B2 (en) | 2006-01-31 | 2009-03-03 | Mitsumi Electric Co., Ltd. | Antenna device |
| US7570915B2 (en) | 2005-01-28 | 2009-08-04 | Mitsumi Electric Co., Ltd. | Antenna unit equipped with a tuner portion |
| JP2010109779A (en) * | 2008-10-30 | 2010-05-13 | Kyocera Corp | Communication apparatus |
| US8026864B2 (en) | 2006-09-01 | 2011-09-27 | Mitsumi Electric Co., Ltd. | Antenna device, antenna element and antenna module |
| JP2017063255A (en) * | 2015-09-24 | 2017-03-30 | ミツミ電機株式会社 | Antenna device and manufacturing method of antenna device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4883096B2 (en) * | 2007-01-17 | 2012-02-22 | 株式会社村田製作所 | Winding body manufacturing method, antenna coil manufacturing method, and antenna coil |
-
1999
- 1999-07-08 JP JP19395799A patent/JP3783226B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7570915B2 (en) | 2005-01-28 | 2009-08-04 | Mitsumi Electric Co., Ltd. | Antenna unit equipped with a tuner portion |
| US7312754B2 (en) | 2005-02-23 | 2007-12-25 | Mitsumi Electric Co., Ltd. | Planar antenna capable of decreasing the number of parts |
| US7498998B2 (en) | 2006-01-31 | 2009-03-03 | Mitsumi Electric Co., Ltd. | Antenna device |
| JP2008011137A (en) * | 2006-06-29 | 2008-01-17 | Tokai Rika Co Ltd | Antenna unit |
| US8026864B2 (en) | 2006-09-01 | 2011-09-27 | Mitsumi Electric Co., Ltd. | Antenna device, antenna element and antenna module |
| JP2010109779A (en) * | 2008-10-30 | 2010-05-13 | Kyocera Corp | Communication apparatus |
| JP2017063255A (en) * | 2015-09-24 | 2017-03-30 | ミツミ電機株式会社 | Antenna device and manufacturing method of antenna device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3783226B2 (en) | 2006-06-07 |
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