JPS6126338U - active antenna - Google Patents
active antennaInfo
- Publication number
- JPS6126338U JPS6126338U JP11124484U JP11124484U JPS6126338U JP S6126338 U JPS6126338 U JP S6126338U JP 11124484 U JP11124484 U JP 11124484U JP 11124484 U JP11124484 U JP 11124484U JP S6126338 U JPS6126338 U JP S6126338U
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- received electric
- intensity
- switching element
- receiver
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の実施例の構成説明図、第２図は受信機
４から得られるチューニングバイアス電圧Ｖの周波数特
性図、第３図は電圧補正回賂１０による変換後の制御電
圧の周波数特性図、第４図はスイッチング素子７と制御
回路１１の実施例の電気回路図、第５図はＡＧＣ電圧と
受信電界強度との関係を示す線図、第６図はＡＧＣ電圧
、演算増幅器４０の一人力端子の電圧（基準電圧）、Ｆ
ＥＴ４４のオン、オフ状態を時間的変化を示す線図であ
る。
１はフラフープアンテナ、２はグランドプレーン、３は
給電用の同軸ケーブル、４は電子同調方式を採用した受
信機、５，６は可変容量タイオード、７はスイッチング
素子、１１は制御回路である。1 is an explanatory diagram of the configuration of the embodiment of the present invention, FIG. 2 is a frequency characteristic diagram of the tuning bias voltage V obtained from the receiver 4, and FIG. 3 is the frequency of the control voltage after conversion by the voltage correction circuit 10. 4 is an electrical circuit diagram of an embodiment of the switching element 7 and control circuit 11, FIG. 5 is a diagram showing the relationship between AGC voltage and received electric field strength, and FIG. 6 is a diagram showing AGC voltage and operational amplifier 40. The voltage at the single-power terminal (reference voltage), F
FIG. 4 is a diagram showing temporal changes in the on/off state of ET44. 1 is a hula hoop antenna, 2 is a ground plane, 3 is a coaxial cable for power feeding, 4 is a receiver employing an electronic tuning system, 5 and 6 are variable capacitance diodes, 7 is a switching element, and 11 is a control circuit.
Claims (1)
量ダイオードを接続し、この容量を電子同調形ラジオ受
信機のチューニングバイアス電圧を用いて変化させるこ
とにより前記フラフープアンテナの共振点を前記受信機
の同調周波数にほぼ一致させるようにしたアクティブア
ンテナにおいて、前記可変容量ダイオードと直列に接続
されたスイッチング素子と、前記受信機のＡＧＣ電圧を
入力とした第１の受信電界強度以上になったとき前記ス
イッチング素子をオフさせ前記第１の受信電界強度より
小さい第２の受信電界強度以下になったとき前記スイッ
チング素子をオンさせる制御回路とを具備したことを特
徴とするアクテイブア｝ ンテナ。[Claims for Utility Model Registration] By connecting a variable capacitance diode between the hula hoop antenna and the ground plate, and changing this capacitance using the tuning bias voltage of an electronically tuned radio receiver, the resonance point of the hula hoop antenna can be adjusted. The active antenna is configured to substantially match the tuned frequency of the receiver, and includes a switching element connected in series with the variable capacitance diode, and a first receiving field strength that is higher than or equal to the first received field strength with the AGC voltage of the receiver as input. an active antenna, comprising: a control circuit that turns off the switching element when the intensity of the received electric field becomes smaller than the first received electric field intensity, and turns on the switching element when the intensity of the received electric field becomes equal to or less than the second received electric field intensity that is smaller than the first received electric field intensity;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11124484U JPS6126338U (en) | 1984-07-23 | 1984-07-23 | active antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11124484U JPS6126338U (en) | 1984-07-23 | 1984-07-23 | active antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6126338U true JPS6126338U (en) | 1986-02-17 |
Family
ID=30670347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11124484U Pending JPS6126338U (en) | 1984-07-23 | 1984-07-23 | active antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6126338U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999017460A1 (en) * | 1997-09-29 | 1999-04-08 | Wellpine Communications Co., Ltd. | Receiving antenna device |
| JP2012034328A (en) * | 2010-07-05 | 2012-02-16 | Panasonic Corp | Antenna device |
-
1984
- 1984-07-23 JP JP11124484U patent/JPS6126338U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999017460A1 (en) * | 1997-09-29 | 1999-04-08 | Wellpine Communications Co., Ltd. | Receiving antenna device |
| JP2012034328A (en) * | 2010-07-05 | 2012-02-16 | Panasonic Corp | Antenna device |
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