JPH0241503U - - Google Patents
Info
- Publication number
- JPH0241503U JPH0241503U JP11861188U JP11861188U JPH0241503U JP H0241503 U JPH0241503 U JP H0241503U JP 11861188 U JP11861188 U JP 11861188U JP 11861188 U JP11861188 U JP 11861188U JP H0241503 U JPH0241503 U JP H0241503U
- Authority
- JP
- Japan
- Prior art keywords
- feed line
- antenna
- circuit according
- antenna feed
- reactance element
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims 6
- 238000010586 diagram Methods 0.000 description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Details Of Aerials (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は、本考案の実施例を示すブロツク図、
第２図は、実施例の等価回路を示す等価回路図、
第３図は、インピーダンス特性を測定するための
回路構成を示すブロツク図、第４図は、アンテナ
給電線回路インピーダンスの周波数特性を示すス
ミスチヤート、第５図は、従来例を示すブロツク
図、第６図は、従来例の不具合を説明するための
説明図、第７図は、第６図に示された従来例の利
得特性を説明するための説明図、第８図は、第７
図に示されたアンテナ給電線回路の等価回路図で
ある。
主要部分の符号の説明、１……アンテナ、２…
…同軸ケーブル、２ｃ，２ｃ′……接地リード線
、２ｄ，２ｄ′……コンデンサ、３……チユーナ
。
FIG. 1 is a block diagram showing an embodiment of the present invention;
FIG. 2 is an equivalent circuit diagram showing an equivalent circuit of the embodiment,
Fig. 3 is a block diagram showing the circuit configuration for measuring impedance characteristics, Fig. 4 is a Smith chart showing the frequency characteristics of antenna feed line circuit impedance, and Fig. 5 is a block diagram showing a conventional example. FIG. 6 is an explanatory diagram for explaining the problems of the conventional example, FIG. 7 is an explanatory diagram for explaining the gain characteristics of the conventional example shown in FIG. 6, and FIG.
FIG. 3 is an equivalent circuit diagram of the antenna feed line circuit shown in the figure. Explanation of symbols of main parts, 1...Antenna, 2...
...Coaxial cable, 2c, 2c'...Ground lead wire, 2d, 2d'...Capacitor, 3...Tuner.
Claims (1)
つてアンテナ及び無線装置相互間の信号伝送をな
すアンテナ給電線回路であつて、 前記接地線路のアンテナ側の一端を単導体及び
これに直列なリアクタンス素子を介して基準電位
点に接続したことを特徴とするアンテナ給電線回
路。 (2) 前記信号線路は同軸給電線路の内部導体で
あり、前記接地線路は前記同軸給電線路の外部導
体であることを特徴とする請求項１記載のアンテ
ナ給電線回路。 (3) 前記リアクタンス素子は容量性であること
を特徴とする請求項１記載のアンテナ給電線回路
。 (4) 前記リアクタンス素子はコンデンサ単体若
しくはコンデンサとインダクタンスとからなるこ
とを特徴とする請求項１記載のアンテナ給電線回
路。 (5) 前記単導体を複数並列接続して各々にリア
クタンス素子を直列に設けたことを特徴とする請
求項１記載のアンテナ給電線回路。[Scope of Claim for Utility Model Registration] (1) An antenna feed line circuit that transmits signals between an antenna and a radio device by a feed line consisting of a ground line and a signal line, one end of the ground line on the antenna side An antenna feed line circuit characterized in that the antenna is connected to a reference potential point via a single conductor and a reactance element in series with the single conductor. (2) The antenna feed line circuit according to claim 1, wherein the signal line is an inner conductor of a coaxial feed line, and the ground line is an outer conductor of the coaxial feed line. (3) The antenna feed line circuit according to claim 1, wherein the reactance element is capacitive. (4) The antenna feed line circuit according to claim 1, wherein the reactance element is composed of a single capacitor or a capacitor and an inductance. (5) The antenna feed line circuit according to claim 1, characterized in that a plurality of said single conductors are connected in parallel and a reactance element is provided in series with each of said single conductors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11861188U JPH0241503U (en) | 1988-09-09 | 1988-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11861188U JPH0241503U (en) | 1988-09-09 | 1988-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241503U true JPH0241503U (en) | 1990-03-22 |
Family
ID=31363107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11861188U Pending JPH0241503U (en) | 1988-09-09 | 1988-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241503U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6219804B2 (en) * | 1981-07-03 | 1987-05-01 | Kubota Ltd |
-
1988
- 1988-09-09 JP JP11861188U patent/JPH0241503U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6219804B2 (en) * | 1981-07-03 | 1987-05-01 | Kubota Ltd |
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