JPS58164313U - antenna - Google Patents

antenna

Info

Publication number
JPS58164313U
JPS58164313U JP1982060766U JP6076682U JPS58164313U JP S58164313 U JPS58164313 U JP S58164313U JP 1982060766 U JP1982060766 U JP 1982060766U JP 6076682 U JP6076682 U JP 6076682U JP S58164313 U JPS58164313 U JP S58164313U
Authority
JP
Japan
Prior art keywords
radiator
antenna
band
designed
reflector
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
JP1982060766U
Other languages
Japanese (ja)
Other versions
JPH0328571Y2 (en
Inventor
弘 渡辺
和彦 田村
Original Assignee
八木アンテナ株式会社
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 by 八木アンテナ株式会社 filed Critical 八木アンテナ株式会社
Priority to JP1982060766U priority Critical patent/JPS58164313U/en
Publication of JPS58164313U publication Critical patent/JPS58164313U/en
Application granted granted Critical
Publication of JPH0328571Y2 publication Critical patent/JPH0328571Y2/ja
Granted legal-status Critical Current

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  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第1図は従来のアンテナを示す構成図、第2図はこの考
案の一実施例に係るアンテナを示す構成図、第3図はV
HF帯域に設計された放射器のインピーダンスを示すス
ミスチャート、第4図a〜Cは、VHF帯域に設計され
た放射器がUHF帯域の反射器として作用することを説
明する指向性図、第5図はU’HF’帯域に設計された
放射器のインピーダンスを示すスミスチャート、第6図
は合成回路を示す構成図、第7図は、この考案によるア
ンテナの周波数−前方対後方比の特性線図を従来例と比
較して示す図、第8図はこの考案の他の実施例を示す構
成図である。 21.23・・・放射器、22.22’ 、24゜24
′・・・給電端子、27・・・UHF帯域の反射器、2
8・・・VHF高域の反射器、29・・・VHF低域の
反射器、30・・・UHF帯域の導波器、31・・・U
HF帯域及びVHF高域の導波器、33.34・・・ア
ーム。
Fig. 1 is a block diagram showing a conventional antenna, Fig. 2 is a block diagram showing an antenna according to an embodiment of this invention, and Fig. 3 is a block diagram showing a conventional antenna.
Smith charts showing the impedance of a radiator designed for the HF band, Figs. The figure is a Smith chart showing the impedance of a radiator designed for the U'HF' band, Figure 6 is a configuration diagram showing a synthesis circuit, and Figure 7 is a characteristic line of the frequency-front-to-back ratio of the antenna according to this invention. FIG. 8 is a diagram showing a configuration of another embodiment of this invention. 21.23...Radiator, 22.22', 24°24
'...Power supply terminal, 27...UHF band reflector, 2
8...VHF high band reflector, 29...VHF low band reflector, 30...UHF band waveguide, 31...U
HF band and VHF high band waveguide, 33.34...arm.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] (1)  UHF帯域に設計された第1の放射器と、U
HF帯域に設計された反射器と、前記第1の放射器と前
記反射器との間に配設されVHF帯域に設計された第2
の放射器と、前記第2の放射器の給電端子に並列に接続
され、UHF帯域で実質上導通した状態となるインピー
ダンス回路とを具備したことを特徴とするアンテナ。
(1) A first radiator designed for the UHF band and a
a reflector designed for the HF band; and a second radiator disposed between the first radiator and the reflector and designed for the VHF band.
An antenna comprising: a radiator; and an impedance circuit that is connected in parallel to a power feeding terminal of the second radiator and is substantially conductive in the UHF band.
(2)前記第1の放射器は線状ダイポールアンテナ又は
扇形アンテナであり、前記第2の放射器は線状ダイポー
ルアンテナ又は折返しダイポールアンテナであり、前記
インピーダンス回路はコンデンサ又はコンデンサ及びコ
イルの並列共振回路から成る実用新案登録請求の範囲第
(1)項記載のアンテナ。
(2) The first radiator is a linear dipole antenna or a sector antenna, the second radiator is a linear dipole antenna or a folded dipole antenna, and the impedance circuit is a capacitor or a parallel resonance of a capacitor and a coil. An antenna according to claim (1) of the utility model registration comprising a circuit.
JP1982060766U 1982-04-26 1982-04-26 antenna Granted JPS58164313U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982060766U JPS58164313U (en) 1982-04-26 1982-04-26 antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982060766U JPS58164313U (en) 1982-04-26 1982-04-26 antenna

Publications (2)

Publication Number Publication Date
JPS58164313U true JPS58164313U (en) 1983-11-01
JPH0328571Y2 JPH0328571Y2 (en) 1991-06-19

Family

ID=30070999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982060766U Granted JPS58164313U (en) 1982-04-26 1982-04-26 antenna

Country Status (1)

Country Link
JP (1) JPS58164313U (en)

Also Published As

Publication number Publication date
JPH0328571Y2 (en) 1991-06-19

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