JPH02147916U - - Google Patents
Info
- Publication number
- JPH02147916U JPH02147916U JP5646689U JP5646689U JPH02147916U JP H02147916 U JPH02147916 U JP H02147916U JP 5646689 U JP5646689 U JP 5646689U JP 5646689 U JP5646689 U JP 5646689U JP H02147916 U JPH02147916 U JP H02147916U
- Authority
- JP
- Japan
- Prior art keywords
- radiating element
- stages
- outer conductor
- antenna
- topmost
- 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.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
第1図は本考案の一実施例に係わるコーリニア
アンテナを示す断面構成図、第2図は上記コーリ
ニアアンテナの800MHZにおける垂直面指向
特性を示す図、第3図は従来のコーリニアアンテ
ナを示す断面構成図、第4図は上記従来のコーリ
ニアアンテナの800MHZにおける垂直面指向
特性を示す図である。
1……中心導体、2……外部導体、3……絶縁
物、4A〜4H……放射素子、5……スロツト、
6……接続端子、7……カバー、8……アンテナ
支柱、9……スタブ回路、10……インピーダン
ス変換回路。
Fig. 1 is a cross-sectional configuration diagram showing a collinear antenna according to an embodiment of the present invention, Fig. 2 is a diagram showing the vertical plane directivity characteristic of the collinear antenna at 800 MHz, and Fig. 3 is a cross-sectional configuration diagram showing a conventional collinear antenna. 4 are diagrams showing the vertical plane directivity characteristics at 800 MHz of the above-mentioned conventional collinear antenna. 1... Center conductor, 2... Outer conductor, 3... Insulator, 4A to 4H... Radiation element, 5... Slot,
6... Connection terminal, 7... Cover, 8... Antenna support, 9... Stub circuit, 10... Impedance conversion circuit.
Claims (1)
欠き形成された複数のスロツト部それぞれの周囲
に、長さ4分の1波長のスリーブ状導体を対称に
配してなるダイポールアンテナを取付けた多段同
軸ダイポール型のコーリニアアンテナにおいて、
全段同一構造の上記ダイポールアンテナを配して
なる複数段の放射素子部と、この複数段の放射素
子部のうち最上段放射素子上部の外部導体内に設
けられたスタブ回路と、上記複数段の放射素子部
のうち最下段放射素子下部の外部導体内に設けら
れた複数段の4分の1波長インピーダンス変換回
路とを具備したことを特徴とするコーリニアアン
テナ。 A dipole antenna is installed in which sleeve-shaped conductors each having a length of 1/4 wavelength are arranged symmetrically around each of a plurality of slots formed in the outer conductor of a coaxial line at regular intervals in the circumferential direction. In a multistage coaxial dipole type collinear antenna,
A plurality of stages of radiating element sections each having the dipole antenna having the same structure in all stages, a stub circuit provided in an outer conductor above the topmost radiating element among the plurality of stages of radiating element sections, and a stub circuit provided in the outer conductor above the topmost radiating element among the plurality of stages of radiating element sections; A collinear antenna comprising a plurality of stages of quarter-wavelength impedance conversion circuits provided in an outer conductor below the lowest radiating element of the radiating element section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5646689U JPH0641377Y2 (en) | 1989-05-18 | 1989-05-18 | Collinear antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5646689U JPH0641377Y2 (en) | 1989-05-18 | 1989-05-18 | Collinear antenna |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02147916U true JPH02147916U (en) | 1990-12-17 |
JPH0641377Y2 JPH0641377Y2 (en) | 1994-10-26 |
Family
ID=31580315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5646689U Expired - Fee Related JPH0641377Y2 (en) | 1989-05-18 | 1989-05-18 | Collinear antenna |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0641377Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5301349B2 (en) * | 2009-05-15 | 2013-09-25 | 日本アンテナ株式会社 | Collinear antenna |
-
1989
- 1989-05-18 JP JP5646689U patent/JPH0641377Y2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0641377Y2 (en) | 1994-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |