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
Application number
JP5646689U
Other languages
Japanese (ja)
Other versions
JPH0641377Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP5646689U priority Critical patent/JPH0641377Y2/en
Publication of JPH02147916U publication Critical patent/JPH02147916U/ja
Application granted granted Critical
Publication of JPH0641377Y2 publication Critical patent/JPH0641377Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 同軸線路の外部導体に一定間隔毎に周方向に切
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.
JP5646689U 1989-05-18 1989-05-18 Collinear antenna Expired - Fee Related JPH0641377Y2 (en)

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)

* Cited by examiner, † Cited by third party
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

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