JPS5947809A - Broad band antenna device for television reception - Google Patents
Broad band antenna device for television receptionInfo
- Publication number
- JPS5947809A JPS5947809A JP57158302A JP15830282A JPS5947809A JP S5947809 A JPS5947809 A JP S5947809A JP 57158302 A JP57158302 A JP 57158302A JP 15830282 A JP15830282 A JP 15830282A JP S5947809 A JPS5947809 A JP S5947809A
- Authority
- JP
- Japan
- Prior art keywords
- impedance
- antenna
- impedance matching
- characteristic
- antenna device
- 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
Landscapes
- Details Of Aerials (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
近年、自動車などの移動体においてテレビジョン放送を
視聴する機会が増えてきている。しかしテレビジョン放
送は、ＶＨＦローバンド（９０〜１０８１ｂ、）、ＶＨ
Ｆハイバンド（１７０−２２２ｋ ）お、Ｊ：びＵＨＦ
（４７０〜７７０■ｈ）の帯域に分れており、非常に
広帯域に所在している。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application In recent years, opportunities to view television broadcasts on moving objects such as automobiles have been increasing. However, television broadcasting is limited to VHF low band (90-1081b), VH
F high band (170-222k) O, J: and UHF
It is divided into bands of (470 to 770 h), and is located in a very wide band.
不発“明は１本の不平衡給電型アンテナにより広帯域に
わたるテレビジ、ヨン放送を良好に受信し良好な画像を
得るものである。The uninvented invention is to receive television broadcasts over a wide band well and obtain good images using a single unbalanced feeding antenna.
従来例の構成とその問題点
第１図は従来のテレビジョン放送受信用広帯域アンテナ
の構成例である。第１図においてアンテナ１はＶＨＦロ
ーバンド受信用アンテナとして、アンテナ２はＶＨＦハ
イバンド受信受信用テナとして動作させており、二本の
アンテナから構成している。しかし、上記のごとく各帯
域専用のアンテナを設けるアンテナ構成では自動虫など
の移動体用としては複雑な構造となり、かつ美観を１１
１うという欠点を有していた。Conventional configuration and problems thereof FIG. 1 shows an example of the configuration of a conventional wideband antenna for receiving television broadcasting. In FIG. 1, antenna 1 is operated as a VHF low-band reception antenna, and antenna 2 is operated as a VHF high-band reception antenna, and is composed of two antennas. However, as described above, the antenna configuration in which an antenna is dedicated to each band results in a complicated structure for use in moving objects such as automated insects, and the aesthetics are poor.
It had one drawback.
発明の目的
本発明は上記欠点に鑑み、一本の不平衡給電型アンテナ
により広帯域受信がｕｆ能て、さらには（１７）造を簡
素化をすることのできるテレビジョン受信用広帯域アン
テナ装置を提供するものである。Purpose of the Invention In view of the above-mentioned drawbacks, the present invention provides a wideband antenna device for television reception that can perform wideband reception with a single unbalanced feeding antenna and further simplify the structure (17). It is something to do.
発明の構成
この目的を達成するために本発明は、′１−ｕ気的全長
か使用周波数、ｉ＋：Ｈの０．２〜０．５波長不平衡給
電型ア／デナの基部にキャパノタノス素ｒ−を直列に接
続シ、１−記ギャパンタンス素子の出力に直列共振回路
およびインピーダンス整合量カドランスを接地面に対［
７てそれぞれ並列に接続して、さらに上）１Ｃインピ一
ダンス整合出カドランスのタップ部ヲ出）Ｊ Ｗ：ｆ、
ｊ−’（−としてプレビジョン受信用広帯域アンテナ装
置イｃ構成したものであり、一本の不平衡給電型アンテ
ナとインピーダンス整合回路とを接続することに」：す
、構造の簡素化イシ用油とするものである。Structure of the Invention In order to achieve this object, the present invention provides a capanotanous element r at the base of a 0.2 to 0.5 wavelength unbalanced feeding type a/dena with a wavelength of 0.2-0. - are connected in series, and a series resonant circuit and an impedance matching quantity cadence are connected to the ground plane to the output of the capantance element.
7 and connect them in parallel, and then connect the tap part of the 1C impedance matching output capacitor above) J W: f,
This is a broadband antenna device for pre-vision reception, in which a single unbalanced feeding antenna and an impedance matching circuit are connected. That is.
実施例の説明 以下本発明の一実施例を図面を用いて説明する。Description of examples An embodiment of the present invention will be described below with reference to the drawings.
第２図のように全長６２０皿の不平衡給電型アンテナ３
を接地面４に対して３０度斜め上方に設置したとき、そ
の給電インピーダンス特性は第３図のごとくなる。しか
し、第３図から明らかなようにこの才１のアンテナでは
ＶＨＦオールバンドにわたり、基糸インピーダンス７５
Ｑに対する■。As shown in Figure 2, an unbalanced feeding antenna 3 with a total length of 620 dishes.
When installed at an angle of 30 degrees above the ground plane 4, its power supply impedance characteristics are as shown in FIG. However, as is clear from FIG.
■ against Q.
Ｓ、Ｗ、Ｒは８．Ｑ以下となり、テレビジョン受信用広
帯域アンテナ装置としては、７ｉ聞ｊ足できるインピー
ダノスｑ寺１牛ではない。S, W, R are 8. It is less than Q, and as a wideband antenna device for television reception, it is not possible to use Impedanos Q, which can be used as a wideband antenna device for television reception.
第４図にこのアンテナを広帯域受信を用油にするだめの
本発明によるインピーダンス整合回路を示す。以下に」
二言己インピーダンス整合回路の説明をする。不平衡給
電型アンテナ３の基部に巻数比３：１のインピーダンス
整合出カドランス５を接続し、上記インピーダンス整合
出カドランス５のタップ部を出力端子とすると全体のイ
ンピーダンスは低くなるが、ＶＨＦハイバントのインピ
ーダンスは基準インピーダンスに近すき、良好な生冒ｊ
ｌＥに改善できる。そのインピーダンスｑ！ｆｌ’ｌ−
を第５図イに示す。次にローバンドの改善ＶＣついて説
明する。−に配子平衡給電型アンテナ３とインピーダン
ス整合量カドランス５との中間部にギヤパフタンス素子
６（コンデンサ２２ＰＦ）を直列に接続することにより
ＶＨＦローバンドのインピーダンスを負領域に移動させ
る。そのイノピーダンス市１’ｌを第５図口に示す。な
お、改善前のインピータンス特性を口′に示す。さらに
上記インピーダンス整合出カドランス５に直列共振回路
７（コンデンサ２２ｐＦ、コイル０．３８７１Ｈ）を接
地面４′に対して並列に４′２；） Ｉ’ｊＬすること
によりＶ ＨＦローバンドのインピーダンス１’、’＋
” ｌ’ｌ： ＆：Ｉ、第５図ハの」：うに改善できる
。ここてＶＨＦオールバントにわプζるインピーダンス
を見ると基準インピーダンス７５１２に対してＶ、Ｓ。FIG. 4 shows an impedance matching circuit according to the present invention which allows this antenna to perform broadband reception. less than"
I will explain the impedance matching circuit in two words. If an impedance matching output transformer 5 with a turns ratio of 3:1 is connected to the base of the unbalanced feeding antenna 3, and the tap portion of the impedance matching output transformer 5 is used as an output terminal, the overall impedance will be lower, but the impedance of VHF high band will be lowered. is close to the reference impedance and has good performance.
It can be improved to lE. Its impedance q! fl'l-
is shown in Figure 5A. Next, the low band improved VC will be explained. By connecting a gear puffance element 6 (capacitor 22PF) in series between the balanced-fed antenna 3 and the impedance matching quadrangle 5, the impedance of the VHF low band is moved to the negative region. Inopedance City 1'l is shown at the beginning of Figure 5. The impedance characteristics before improvement are shown below. Furthermore, by connecting the series resonant circuit 7 (capacitor 22pF, coil 0.3871H) to the impedance matching output transformer 5 in parallel to the ground plane 4', the impedance of VHF low band 1', '＋
``l'l: &: I, Figure 5 C'': It can be improved. Here, looking at the impedance across the VHF band, V, S with respect to the standard impedance 7512.
Ｗ、Ｒ，４，０以下となる。その給電インピーダンス！
１１１つ１を第６図に示す。W, R, becomes 4,0 or less. That feed impedance!
111 is shown in FIG.
発明の効果
以上のように本発明によれば、一本の不平衡給電型アン
テナと上記インピーダンス整合回路を接続することによ
り、テレビジョン受信用広帯域アンテナ装置として満足
できるインピーダンス特性となる。寸だ、構造の簡素化
が図れて、自動車などの移動体における利用価値は大な
るものである。Effects of the Invention As described above, according to the present invention, by connecting one unbalanced feeding antenna and the impedance matching circuit, impedance characteristics can be achieved that are satisfactory as a wideband antenna device for television reception. As a result, the structure can be simplified, and the value of use in moving objects such as automobiles is great.
第１図１．従来のテレビジョン受信用広帯域アンテナ装
置の構成を示す図、第２図は不平衡給電型アンテナの設
置方法を示す図、第３図は、第２図におけるアンテナの
インピーダンス特性図、第４図は本発明の一実施例にお
けるテレビジョン受信用広帯域アンテナ装置の構成をノ
Ｊ【ず図、第５図は第４図のインピーダンス特＋ａの経
過を小ず図、第６図は第４図のように構成し／こときの
インピーダンス特性を示す図である。
３・・・・・・不平衡給電型アンテナ、４，４′・・・
・・・接地面、５・・・・・・インピーダンス整合出カ
ドランス、６ｍｍａｍｍｍキャパシタンス素子、７−−
−−−−直列共振回路。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第
１ｃ′ｌ
第３図
第４図Figure 11. A diagram showing the configuration of a conventional wideband antenna device for television reception, FIG. 2 is a diagram showing the installation method of an unbalanced feeding type antenna, FIG. 3 is an impedance characteristic diagram of the antenna in FIG. 2, and FIG. The configuration of a broadband antenna device for television reception according to an embodiment of the present invention is shown in Figure 5, and Figure 5 is a small diagram showing the progression of the impedance characteristic +a in Figure 4, and Figure 6 is similar to Figure 4. It is a figure which shows the impedance characteristic of this structure. 3... Unbalanced feeding antenna, 4,4'...
... Ground plane, 5 ... Impedance matching output transformer, 6mmammm capacitance element, 7--
−−−−Series resonant circuit. Name of agent: Patent attorney Toshio Nakao and 1 other person
1c'l Figure 3 Figure 4
Claims (1)
給電型アンテナの基部にキャパシタンス素子を直列に接
続し、上記キャパシタンス素子の出力に直列共振回路お
よびインピーダンス整合量カドランスを接地面に対して
それぞれ並列に接続し、上記インピーダンス整合出力ト
シンスのタップ部を出力端子とするテレビジョン受信用
広帯域アンテナ装置。A capacitance element is connected in series to the base of an unbalanced feeding antenna with a total electrical length of 0.2 to ○65 wavelengths of the working frequency, and a series resonant circuit and an impedance matching quadrance are connected to the output of the capacitance element with respect to the ground plane. A wideband antenna device for television reception, in which the impedance matching output signals are connected in parallel, and the tap portion of the impedance matching output signal is used as an output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57158302A JPS5947809A (en) | 1982-09-10 | 1982-09-10 | Broad band antenna device for television reception |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57158302A JPS5947809A (en) | 1982-09-10 | 1982-09-10 | Broad band antenna device for television reception |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5947809A true JPS5947809A (en) | 1984-03-17 |
| JPH0229242B2 JPH0229242B2 (en) | 1990-06-28 |
Family
ID=15668644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57158302A Granted JPS5947809A (en) | 1982-09-10 | 1982-09-10 | Broad band antenna device for television reception |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5947809A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005034289A1 (en) * | 2003-03-31 | 2005-04-14 | Alexander Ivanovich Karpov | Multiband aerial |
| WO2005045995A1 (en) * | 2003-11-06 | 2005-05-19 | Alexander Ivanovich Karpov | Wideband antenna |
| WO2012147383A1 (en) * | 2011-04-26 | 2012-11-01 | 原田工業株式会社 | Impedance transformation circuit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04133136U (en) * | 1991-05-29 | 1992-12-10 | 株式会社クボタ | grain ejector |
-
1982
- 1982-09-10 JP JP57158302A patent/JPS5947809A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005034289A1 (en) * | 2003-03-31 | 2005-04-14 | Alexander Ivanovich Karpov | Multiband aerial |
| WO2005045995A1 (en) * | 2003-11-06 | 2005-05-19 | Alexander Ivanovich Karpov | Wideband antenna |
| WO2012147383A1 (en) * | 2011-04-26 | 2012-11-01 | 原田工業株式会社 | Impedance transformation circuit |
| JP2012231283A (en) * | 2011-04-26 | 2012-11-22 | Harada Ind Co Ltd | Impedance conversion circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0229242B2 (en) | 1990-06-28 |
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