JPH01126734U - - Google Patents
Info
- Publication number
- JPH01126734U JPH01126734U JP1988022453U JP2245388U JPH01126734U JP H01126734 U JPH01126734 U JP H01126734U JP 1988022453 U JP1988022453 U JP 1988022453U JP 2245388 U JP2245388 U JP 2245388U JP H01126734 U JPH01126734 U JP H01126734U
- Authority
- JP
- Japan
- Prior art keywords
- transmitter
- connection terminal
- variable reactance
- reactance element
- antenna
- 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
- 230000005855 radiation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Description
第１図は本考案による擬似空中線装置の一実施
例を示す接続図、第２図は音響浮標を示す概略斜
視図、第３図は従来の試験装置を示す一部ブロツ
ク図を含む概略斜視図、第４図は上記実施例の擬
似空中線装置を使用して送信機の評価試験を行な
う試験装置のブロツク図である。
３……送信機、６……アンテナ、２１，２６，
２９，３０……抵抗、２２，２５……可変コイル
、２３，２４……可変容量ダイオード、２７……
コンデンサ、３５……擬似空中線装置。
Fig. 1 is a connection diagram showing an embodiment of the pseudo antenna device according to the present invention, Fig. 2 is a schematic perspective view showing an acoustic buoy, and Fig. 3 is a schematic perspective view including a partial block diagram showing a conventional test device. , FIG. 4 is a block diagram of a test device for conducting an evaluation test of a transmitter using the pseudo antenna device of the above embodiment. 3...Transmitter, 6...Antenna, 21, 26,
29, 30... Resistor, 22, 25... Variable coil, 23, 24... Variable capacitance diode, 27...
Capacitor, 35...Pseudo antenna device.
Claims (1)
接続端子及びグラウンド間に、少なくとも抵抗素
子及び可変リアクタンス素子を含んだ複数の受動
素子を、上記送信機接続端子から見たインピーダ
ンスが上記送信機に接続されるアンテナの放射イ
ンピーダンスと等しくなるように接続すると共に
、上記可変リアクタンス素子を外部からの制御信
号に応じてその値を可変し得るようにしたことを
特徴とする送信機試験用の擬似空中線装置。 A plurality of passive elements including at least a resistance element and a variable reactance element are connected to the transmitter between the transmitter connection terminal connected to the antenna connection terminal of the transmitter and the ground, and the impedance as seen from the transmitter connection terminal is connected to the transmitter. A pseudo antenna device for transmitter testing, characterized in that the variable reactance element is connected so as to be equal to the radiation impedance of the antenna to be tested, and the value of the variable reactance element can be varied in accordance with an external control signal. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988022453U JPH01126734U (en) | 1988-02-24 | 1988-02-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988022453U JPH01126734U (en) | 1988-02-24 | 1988-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01126734U true JPH01126734U (en) | 1989-08-30 |
Family
ID=31240590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988022453U Pending JPH01126734U (en) | 1988-02-24 | 1988-02-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01126734U (en) |
-
1988
- 1988-02-24 JP JP1988022453U patent/JPH01126734U/ja active Pending