JPH01117134U - - Google Patents
Info
- Publication number
- JPH01117134U JPH01117134U JP1152888U JP1152888U JPH01117134U JP H01117134 U JPH01117134 U JP H01117134U JP 1152888 U JP1152888 U JP 1152888U JP 1152888 U JP1152888 U JP 1152888U JP H01117134 U JPH01117134 U JP H01117134U
- Authority
- JP
- Japan
- Prior art keywords
- frequency band
- cable
- antenna
- impedance
- output
- 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
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図は本考案の実施例を示すブロツク図、第
２図はケーブル３の等価回路図、第３図は本考案
の具体的実施例を示す回路図、第４図はアンテナ
の等価回路図である。
図中、１：アンテナ、２：第１のインピーダン
ス変換器、３：ケーブル、４：第２のインピーダ
ンス変換器、６：ＡＭ受信機、７：ＦＭ受信機、
Ｌ１：コイル、Ｃ１：コンデンサ。
Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is an equivalent circuit diagram of the cable 3, Fig. 3 is a circuit diagram showing a specific embodiment of the invention, and Fig. 4 is an equivalent circuit diagram of the antenna. It is. In the figure, 1: antenna, 2: first impedance converter, 3: cable, 4: second impedance converter, 6: AM receiver, 7: FM receiver,
L1: Coil, C1: Capacitor.
Claims (1)
周波数より低い周波数の第２周波数帯を受信する
装置において、 該第１周波数帯用アンテナと第１周波数帯用受
信機とを接続する第１ケーブルと、 前記アンテナに入力端が接続され、第２周波数
帯に対する前記アンテナ出力インピーダンスをロ
ー・インピーダンスに変換する第１のインピーダ
ンス変換器と、 該第１のインピーダンス変換器の出力に入力端
が接続され、出力端が第２の周波数帯用受信機に
接続された第２ケーブルとからなることを特徴と
するアンテナ装置。 ２ 前記第１ケーブルと前記第２ケーブルが同一
であることを特徴とする請求項１記載のアンテナ
装置。 ３ 前記アンテナと前記第１ケーブルとの間に前
記第２周波数帯の信号を遮断するフイルタを設け
、前記アンテナと前記第２ケーブル間に前記第１
周波数帯の信号を遮断するフイルターを設けたこ
とを特徴とする請求項１又は２記載のアンテナ装
置。 ４ 請求項１又は２又は３記載のアンテナ装置を
有する受信装置であつて、 前記第２ケーブルの出力端に接続され、前記第
２ケーブルの出力インピーダンスをハイ・インピ
ーダンスに変換する第２のインピーダンス変換器
と、 前記第２のインピーダンス変換器と前記第２の
周波数帯用受信機の同調回路との間に接続され、
該同調回路と前記第２ケーブルのインピーダンス
とを分離する分離回路とを備えたことを特徴とす
る受信装置。 ５ 前記第２のインピーダンス変換器は、電圧を
昇圧するトランスであることを特徴とする請求項
４記載の受信装置。[Claims for Utility Model Registration] 1. Using an antenna for the first frequency band to
A device for receiving a second frequency band having a lower frequency than a second frequency band, the first cable connecting the first frequency band antenna and the first frequency band receiver; a first impedance converter that converts the antenna output impedance for a frequency band into a low impedance; an input end is connected to the output of the first impedance converter, and an output end is connected to a receiver for a second frequency band. An antenna device comprising a second cable connected to the antenna device. 2. The antenna device according to claim 1, wherein the first cable and the second cable are the same. 3. A filter that blocks signals in the second frequency band is provided between the antenna and the first cable, and a filter that blocks signals in the second frequency band is provided between the antenna and the second cable.
3. The antenna device according to claim 1, further comprising a filter for blocking signals in a frequency band. 4. A receiving device comprising the antenna device according to claim 1, 2 or 3, comprising: a second impedance conversion connected to the output end of the second cable and converting the output impedance of the second cable into high impedance. connected between the second impedance converter and a tuning circuit of the second frequency band receiver;
A receiving device comprising: a separation circuit that separates the tuning circuit from the impedance of the second cable. 5. The receiving device according to claim 4, wherein the second impedance converter is a transformer that boosts voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1152888U JPH01117134U (en) | 1988-01-29 | 1988-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1152888U JPH01117134U (en) | 1988-01-29 | 1988-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01117134U true JPH01117134U (en) | 1989-08-08 |
Family
ID=31220163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1152888U Pending JPH01117134U (en) | 1988-01-29 | 1988-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01117134U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6110370U (en) * | 1984-06-22 | 1986-01-22 | ハンド−ザ−工業株式会社 | earthmoving vehicle |
-
1988
- 1988-01-29 JP JP1152888U patent/JPH01117134U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6110370U (en) * | 1984-06-22 | 1986-01-22 | ハンド−ザ−工業株式会社 | earthmoving vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01117134U (en) | ||
| JPH01177622U (en) | ||
| JP2602292Y2 (en) | Up-down converter | |
| JPH02120916U (en) | ||
| JPS60189144U (en) | Receiving antenna device | |
| JPH01160741U (en) | ||
| JPS6275656U (en) | ||
| JPS6322754B2 (en) | ||
| JPS59166523U (en) | Radio receiver band switching device | |
| JPH0191349U (en) | ||
| JPS61151422U (en) | ||
| JPS6433222U (en) | ||
| JPH01122636U (en) | ||
| JPS6168521U (en) | ||
| JPS5963540U (en) | antenna matching device | |
| JPH0397242U (en) | ||
| JPH0353048U (en) | ||
| JPS6429929U (en) | ||
| JPH0439746U (en) | ||
| JPH0191347U (en) | ||
| JPS6261548U (en) | ||
| JPS62109568U (en) | ||
| JPS6455757U (en) | ||
| JPS63183727U (en) | ||
| JPS62198730U (en) |