JPS63113307U - - Google Patents
Info
- Publication number
- JPS63113307U JPS63113307U JP385787U JP385787U JPS63113307U JP S63113307 U JPS63113307 U JP S63113307U JP 385787 U JP385787 U JP 385787U JP 385787 U JP385787 U JP 385787U JP S63113307 U JPS63113307 U JP S63113307U
- Authority
- JP
- Japan
- Prior art keywords
- antenna element
- frequency
- antenna
- contracting
- expanding
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
Landscapes
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
Description
第１図は本考案の一実施例の八木アンテナを示
すブロツク図、第２図は第１図の八木アンテナの
アンテナ素子及び駆動部の内部構造を示す断面図
、第３図は第２図のアンテナ素子の一部を示す斜
視図である。
１……アンテナ素子、２……検波部、３……駆
動コントロール部、４……駆動部、１ａ……スプ
リング鋼、１ｂ……伸縮管、５……送受信機、６
……サーボモータ。
Fig. 1 is a block diagram showing a Yagi antenna according to an embodiment of the present invention, Fig. 2 is a sectional view showing the internal structure of the antenna element and drive section of the Yagi antenna of Fig. 1, and Fig. 3 is a block diagram showing the internal structure of the Yagi antenna of Fig. 2. It is a perspective view showing a part of antenna element. DESCRIPTION OF SYMBOLS 1... Antenna element, 2... Detection section, 3... Drive control section, 4... Drive section, 1a... Spring steel, 1b... Telescopic tube, 5... Transmitter/receiver, 6
……Servomotor.
Claims (1)
あつて、受信電波の周波数を検波してその周波数
に応じた検波信号を送出する検波手段と、前記検
波信号を受けて前記アンテナ素子と前記周波数に
適合するように伸縮させる制御信号を送出する駆
動コントロール手段と、前記制御信号を受けて前
記アンテナ素子を伸縮する駆動手段とを備えてい
ることを特徴とする八木アンテナ。 A Yagi antenna having a telescopic antenna element, comprising a detection means for detecting the frequency of a received radio wave and transmitting a detection signal corresponding to the frequency, and receiving the detection signal and matching the antenna element to the frequency. A Yagi antenna comprising: a drive control means for transmitting a control signal for expanding and contracting the antenna element; and a drive means for expanding and contracting the antenna element in response to the control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP385787U JPS63113307U (en) | 1987-01-13 | 1987-01-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP385787U JPS63113307U (en) | 1987-01-13 | 1987-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63113307U true JPS63113307U (en) | 1988-07-21 |
Family
ID=30784002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP385787U Pending JPS63113307U (en) | 1987-01-13 | 1987-01-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63113307U (en) |
-
1987
- 1987-01-13 JP JP385787U patent/JPS63113307U/ja active Pending