JPH0332810U - - Google Patents
Info
- Publication number
- JPH0332810U JPH0332810U JP9198689U JP9198689U JPH0332810U JP H0332810 U JPH0332810 U JP H0332810U JP 9198689 U JP9198689 U JP 9198689U JP 9198689 U JP9198689 U JP 9198689U JP H0332810 U JPH0332810 U JP H0332810U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- frequency
- resonates
- resonant circuit
- dual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 1
Description
図面は本考案を示すものであつて、第１図は二
波共用アンテナの原理を示す斜視図、第２図は第
１図の等価回路を示す図、第３図は二波共用アン
テナの正面図、第４図は第３図と異なる二波共用
アンテナの正面図、第５図は二波共用アンテナの
周波数特性図、である。
なお、図面に示す符号について、１，５……ア
ンテナ、２……送・受信機、３……コイル、４…
…線、７……絶縁物、Ｃ１，Ｃ２……キヤパシタ
ンス、Ｌ１，Ｌ２……インダクタンス、である。
The drawings show the present invention: Figure 1 is a perspective view showing the principle of a dual-wave antenna, Figure 2 is a diagram showing the equivalent circuit of Figure 1, and Figure 3 is a front view of the dual-wave antenna. 4 is a front view of a dual-wave antenna different from that in FIG. 3, and FIG. 5 is a frequency characteristic diagram of the dual-wave antenna. Regarding the symbols shown in the drawings, 1, 5...antenna, 2...transmitter/receiver, 3...coil, 4...
...wire, 7...insulator, C1, C2...capacitance, L1, L2...inductance.
Claims (1)
設けられた第１のコイルの有するキヤパシタンス
とインダクタンスとにより第１の周波数ｆ１に共
振する並列共振回路が構成され、前記第１のコイ
ルの他端が前記第１の周波数ｆ１に共振する直列
共振回路が構成されている第２のコイルの上端に
接続されて、前記第１の周波数ｆ１に対しては前
記第２のコイルが、前記第１の周波数ｆ１と異な
る第２の周波数ｆ２に対しては前記第１のコイル
と前記第２のコイルの全体が共振することを特徴
とする二波共用アンテナ。 A parallel resonant circuit that resonates at a first frequency f1 is configured by the capacitance and inductance of a first coil that is connected to and covers a wire provided therein, and the first coil The other end is connected to the upper end of a second coil forming a series resonant circuit that resonates at the first frequency f1, and the second coil is connected to the second coil for the first frequency f1. A dual-wave antenna characterized in that the entire first coil and the second coil resonate for a second frequency f2 different from the first frequency f1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9198689U JPH0332810U (en) | 1989-08-04 | 1989-08-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9198689U JPH0332810U (en) | 1989-08-04 | 1989-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0332810U true JPH0332810U (en) | 1991-03-29 |
Family
ID=31641439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9198689U Pending JPH0332810U (en) | 1989-08-04 | 1989-08-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332810U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002047203A1 (en) * | 2000-12-06 | 2002-06-13 | Nippon Antena Kabushiki Kaisha | Dual-resonance antenna |
| JP2002359514A (en) * | 2001-05-31 | 2002-12-13 | Anten Corp | Helical antenna |
| JP2007520964A (en) * | 2004-02-06 | 2007-07-26 | ハラダ・インダストリー・カンパニー・リミテッド | Multi-band antenna using parasitic elements |
-
1989
- 1989-08-04 JP JP9198689U patent/JPH0332810U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002047203A1 (en) * | 2000-12-06 | 2002-06-13 | Nippon Antena Kabushiki Kaisha | Dual-resonance antenna |
| JP2002176310A (en) * | 2000-12-06 | 2002-06-21 | Nippon Antenna Co Ltd | Double resonance antenna |
| JP2002359514A (en) * | 2001-05-31 | 2002-12-13 | Anten Corp | Helical antenna |
| JP2007520964A (en) * | 2004-02-06 | 2007-07-26 | ハラダ・インダストリー・カンパニー・リミテッド | Multi-band antenna using parasitic elements |