JPH06177635A - Cross dipole antenna system - Google Patents

Cross dipole antenna system

Info

Publication number
JPH06177635A
JPH06177635A JP4351092A JP35109292A JPH06177635A JP H06177635 A JPH06177635 A JP H06177635A JP 4351092 A JP4351092 A JP 4351092A JP 35109292 A JP35109292 A JP 35109292A JP H06177635 A JPH06177635 A JP H06177635A
Authority
JP
Japan
Prior art keywords
dipole antenna
thin film
frequency
dipole
dielectric substrate
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
Application number
JP4351092A
Other languages
Japanese (ja)
Inventor
Kenji Yamazaki
謙二 山崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4351092A priority Critical patent/JPH06177635A/en
Publication of JPH06177635A publication Critical patent/JPH06177635A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H01Q9/285—Planar dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)

Abstract

PURPOSE:To reduce the number of components to be employed to attain light weight and to reduce the cost by arranging two dipole antennas whose frequency band differs from each other on a same dielectric board to be arranged orthogonal to each other. CONSTITUTION:A signal whose frequency is f1 sent from a signal generator is led through a feeder 4 being parallel wires and fed to thin film conductors 2a, 2b of a dipole antenna 2 formed on a dielectric board 1, the length of the dipole antenna 2 is selected to be active on the frequency f1 and a radio signal whose frequency is f1 is radiated from the dipole antenna 2. Since two dipole antennas 2,3 whose frequency band differs from each other are formed on the same dielectric board, a problem of interference is considered, the two dipole antennas 2, 3 are arranged orthogonal to each other and they are excited by an orthogonal polarized wave and the magnitude of the interference is sufficiently decreased.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は、レーダ装置等に使用
され、２つの周波数帯域の送受信に使用されるクロスダ
イポールアンテナ装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cross dipole antenna device used in radar devices and the like and used for transmitting and receiving in two frequency bands.

【０００２】[0002]

【従来の技術】図５は従来のダイポールアンテナ装置を
示す斜視図であり、図において、１ａ，１ｂは誘電体基
板、２は誘電体基板１ａ上に設けられて、周波数ｆ1 で
動作する長さＬ1 のダイポールアンテナであり、一対の
薄膜導体２ａ，２ｂからなる。2. Description of the Related Art FIG. 5 is a perspective view showing a conventional dipole antenna device. In the figure, 1a and 1b are dielectric substrates, 2 is a dielectric substrate 1a, and a long operating at a frequency f 1. It is a dipole antenna of size L 1 and is composed of a pair of thin film conductors 2a and 2b.

【０００３】また、３は誘電体基板１ｂ上に設けられ
て、周波数ｆ2 で動作する長さＬ2 のダイポールアンテ
ナであり、一対の薄膜導体３ａ，３ｂからなる。４は周
波数ｆ1 の信号を伝送する給電線路、５は周波数ｆ2 の
信号を伝送する給電線路、６は周波数ｆ1 の信号発生
器、７は周波数ｆ2 の信号発生器である。Reference numeral 3 is a dipole antenna provided on the dielectric substrate 1b and having a length L 2 which operates at a frequency f 2 and comprises a pair of thin film conductors 3a and 3b. Reference numeral 4 is a power supply line for transmitting a signal of frequency f 1 , 5 is a power supply line for transmitting a signal of frequency f 2 , 6 is a signal generator of frequency f 1 , and 7 is a signal generator of frequency f 2 .

【０００４】次に動作について説明する。なお、ここで
は一例として電波を送信する場合を、周波数ｆ1 の系統
について説明する。まず、信号発生器６から送出された
周波数ｆ1 の信号は、例えば平行線からなる給電線路４
により導かれ、誘電体基板１ａ上に形成されたダイポー
ルアンテナ２の各薄膜導体２ａ，２ｂに給電される。Next, the operation will be described. Here, as an example, the case of transmitting a radio wave will be described for a system of frequency f 1 . First, the signal of the frequency f 1 sent from the signal generator 6 is, for example, a parallel line.
And is fed to the thin film conductors 2a and 2b of the dipole antenna 2 formed on the dielectric substrate 1a.

【０００５】また、ダイポールアンテナ２は周波数ｆ1
に対して動作するよう長さＬ1 が設定されており、周波
数ｆ1 の信号を空間に放射する。なお、周波数ｆ2 の系
統については、上記と同様に動作するので、その重複す
る説明を省略する。The dipole antenna 2 has a frequency f 1
The length L 1 is set so as to operate with respect to, and a signal of frequency f 1 is radiated into space. Since the system of frequency f 2 operates in the same manner as above, its duplicate description will be omitted.

【０００６】[0006]

【発明が解決しようとする課題】従来のダイポールアン
テナ装置は以上のように周波数系統毎に独立して構成さ
れているので、ダイポールアンテナ２，３を形成する誘
電体基板１ａ，１ｂを２系統分必要とし、また、誘電体
基板１ａ，１ｂ等を支持する構造部材も２系統分必要に
なるほか、電気的位相中心が周波数系統毎に異なり、こ
れらを多数並べたアレーアンテナとする場合には、励振
位相調整が煩雑になるなどの問題点があった。Since the conventional dipole antenna device is constructed independently for each frequency system as described above, the dielectric substrates 1a and 1b forming the dipole antennas 2 and 3 are divided into two systems. In addition to the need for two structural members for supporting the dielectric substrates 1a and 1b, the electric phase center is different for each frequency system. There was a problem that the excitation phase adjustment became complicated.

【０００７】請求項１の発明は上記のような問題点を解
消するためになされたもので、使用する部品の点数を減
じることにより軽量かつ安価にでき、かつ試験調整時の
煩雑さを軽減できるプリント化されたクロスダイポール
アンテナ装置を得ることを目的とする。The invention of claim 1 has been made to solve the above problems, and by reducing the number of parts used, it can be made lightweight and inexpensive, and the complexity of test adjustment can be reduced. The purpose is to obtain a printed crossed dipole antenna device.

【０００８】請求項２の発明は広帯域特性を実現できる
クロスダイポールアンテナ装置を得ることを目的とす
る。It is an object of the present invention to obtain a crossed dipole antenna device capable of realizing wide band characteristics.

【０００９】請求項３の発明はダイポールアンテナの薄
膜導体長を短くすることができるクロスダイポールアン
テナ装置を得ることを目的とする。It is an object of the present invention to provide a crossed dipole antenna device capable of shortening the thin film conductor length of the dipole antenna.

【００１０】[0010]

【課題を解決するための手段】請求項１の発明に係るク
ロスダイポールアンテナ装置は、誘電体基板上に、薄膜
導体で形成された第１のダイポールアンテナと、これに
対し直交配置され、上記第１のダイポールアンテナと周
波数帯域が異なり、かつ互いに直交偏波で独立して励振
される薄膜導体で形成された第２のダイポールアンテナ
とを設けたものである。According to a first aspect of the present invention, there is provided a crossed dipole antenna device having a first dipole antenna formed of a thin film conductor on a dielectric substrate and arranged orthogonal to the first dipole antenna. The first dipole antenna is different from the first dipole antenna in frequency band, and is provided with a second dipole antenna formed of thin film conductors that are independently excited by orthogonal polarization.

【００１１】請求項２の発明に係るクロスダイポールア
ンテナ装置は、第１のダイポールアンテナおよび第２の
ダイポールアンテナの各薄膜導体を扇形としたものであ
る。In the crossed dipole antenna device according to the invention of claim 2, the thin film conductors of the first dipole antenna and the second dipole antenna are fan-shaped.

【００１２】請求項３の発明に係るクロスダイポールア
ンテナ装置は、第１のダイポールアンテナおよび第２の
ダイポールアンテナの各薄膜導体を唖鈴形としたもので
ある。In the crossed dipole antenna device according to the invention of claim 3, the thin film conductors of the first dipole antenna and the second dipole antenna are bellows-shaped.

【００１３】[0013]

【作用】請求項１の発明におけるクロスダイポールアン
テナ装置は、周波数帯域の異なる２つのダイポールアン
テナを同一誘電体基板上に直交するように配置すること
で、誘電体基板およびその支持構造部材の使用量を半減
させるとともに、互いを直交させ、かつ給電点を同一場
所に設けることで、位相中心を一致させる。In the crossed dipole antenna device according to the first aspect of the present invention, two dipole antennas having different frequency bands are arranged on the same dielectric substrate so as to be orthogonal to each other, so that the usage amount of the dielectric substrate and its supporting structure member is increased. , And the feed points are provided at the same place so that the phase centers coincide with each other.

【００１４】請求項２の発明におけるクロスダイポール
アンテナ装置は、各ダイポールアンテナの各薄膜導体を
扇形とすることで、送受信面が拡大し、広帯域特性を得
られるようにする。In the crossed dipole antenna device according to the second aspect of the present invention, the thin film conductors of the dipole antennas are fan-shaped so that the transmission / reception surface is expanded and wide band characteristics are obtained.

【００１５】請求項３の発明におけるクロスダイポール
アンテナ装置は、各ダイポールアンテナの薄膜導体の形
状を唖鈴形とすることで、送受信面を短くでき、全体の
小形化を図れるようにする。In the crossed dipole antenna device according to the third aspect of the present invention, the thin film conductor of each dipole antenna has a bell-belt shape so that the transmitting / receiving surface can be shortened and the overall size can be reduced.

【００１６】[0016]

【実施例】実施例１．以下、この発明の一実施例を図に
ついて説明する。図１において、１は誘電体基板、２
ａ，２ｂは周波数ｆ1 で動作する長さＬ1 のダイポール
アンテナ２を構成する薄膜導体、３ａ，３ｂは周波数ｆ
2 で動作する長さＬ2 のダイポールアンテナ３を構成す
る薄膜導体、４は周波数ｆ1 の信号を伝送する給電線
路、５は周波数ｆ2 の信号を伝送する給電線路、６は周
波数ｆ1 の信号発生器、７は周波数ｆ2 の信号発生器で
ある。なお、図２は図１に示した各ダイポールアンテナ
２，３の配置関係を示す平面図である。EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a dielectric substrate, 2
a, 2b is thin conductors constituting the dipole antenna 2 of the length L 1 operating at frequency f 1, 3a, 3b the frequency f
2 is a thin-film conductor that constitutes the dipole antenna 3 having a length L 2 that operates at 2 , 4 is a feed line that transmits a signal of frequency f 1 , 5 is a feed line that transmits a signal of frequency f 2 , and 6 is a line of frequency f 1 . A signal generator, 7 is a signal generator of frequency f 2 . 2 is a plan view showing the positional relationship between the dipole antennas 2 and 3 shown in FIG.

【００１７】つぎに動作について説明する。この実施例
では、ダイポールアンテナ２，３の動作は図５について
説明した場合と同じであり、まず、信号発生器６から送
出された周波数ｆ1 の信号は、例えば平行線からなる給
電線路４により導かれ、誘電体基板１ａ上に形成された
ダイポールアンテナ２の各薄膜導体２ａ，２ｂに給電さ
れる。Next, the operation will be described. In this embodiment, the operation of the dipole antenna 2 and 3 is the same as described for FIG. 5, first, the signal generator signal having a frequency f 1 that is sent from 6, for example by the feed line 4 composed of parallel lines The thin film conductors 2 a and 2 b of the dipole antenna 2 formed on the dielectric substrate 1 a are guided and fed.

【００１８】また、ダイポールアンテナ２は周波数ｆ1
に対して動作するよう長さＬ1 が設定されており、周波
数ｆ1 の信号を空間に放射する。なお、周波数ｆ2 の系
統については、上記と同様に動作するので、その重複す
る説明を省略する。The dipole antenna 2 has a frequency f 1
The length L 1 is set so as to operate with respect to, and a signal of frequency f 1 is radiated into space. Since the system of frequency f 2 operates in the same manner as above, its duplicate description will be omitted.

【００１９】さらに、同一の誘電体基板１上に周波数帯
域の異なる２つのダイポールアンテナ２，３を形成した
ことにより、相互干渉の問題が危惧されるが、上記のよ
うに、２つのダイポールアンテナ２，３を直交するよう
に配置したので、互いが直交偏波で励振されるため、干
渉の程度は十分に小さくなる。Further, since the two dipole antennas 2 and 3 having different frequency bands are formed on the same dielectric substrate 1, the problem of mutual interference is feared. However, as described above, the two dipole antennas 2 and 3 are formed. Since 3 are arranged so as to be orthogonal to each other, they are excited by orthogonal polarized waves, and the degree of interference is sufficiently small.

【００２０】実施例２．なお、上記実施例では各ダイポ
ールアンテナ２，３の薄膜導体２ａ，２ｂおよび３ａ，
３ｂの形状を長方形としたものを示したが、図３に示す
ように扇形の薄膜導体２ｃ，２ｄおよび３ｃ，３ｄとし
てもよく、この場合には送受信の周波数を広帯域特性と
することができる。Example 2. In the above embodiment, the thin film conductors 2a, 2b and 3a of the dipole antennas 2 and 3,
Although the shape of 3b is rectangular, it may be fan-shaped thin film conductors 2c, 2d and 3c, 3d as shown in FIG. 3, and in this case, the transmission / reception frequency can have wide band characteristics.

【００２１】また、図４は各ダイポールアンテナ２，３
を唖鈴形の薄膜導体２ｅ，２ｆおよび３ｅ，３ｆとした
ものを示し、これによれば実施例１の効果に加えて、各
薄膜導体２ｅ，２ｆ，３ｅ，３ｆの長さを短くすること
ができ、従って、クロスダイポールアンテナ装置として
の全体形状の小形化を図ることができる。Further, FIG. 4 shows each dipole antenna 2, 3
Shows the bell-shaped thin film conductors 2e, 2f and 3e, 3f. According to this, in addition to the effect of the first embodiment, the length of each thin film conductor 2e, 2f, 3e, 3f is shortened. Therefore, it is possible to reduce the overall size of the crossed dipole antenna device.

【００２２】[0022]

【発明の効果】以上のように、請求項１の発明によれ
ば、誘電体基板上に、薄膜導体で形成された第１のダイ
ポールアンテナと、これに対し直交配置され、上記第１
のダイポールアンテナと周波数帯域が異なり、かつ互い
に直交偏波で独立して励振される薄膜導体で形成された
第２のダイポールアンテナとを設けるように構成したの
で、使用部品点数の削減によって、軽量化並びにローコ
スト化を図れ、しかも励振位相調整時の作業の煩雑さを
軽減できるものが得られる効果がある。As described above, according to the first aspect of the present invention, the first dipole antenna formed of the thin film conductor is arranged on the dielectric substrate, and the first dipole antenna is arranged orthogonal to the first dipole antenna.
The second dipole antenna having a frequency band different from that of the above-mentioned dipole antenna and being independently excited by orthogonal polarization with each other is provided, so that it is possible to reduce the weight by reducing the number of parts used. In addition, there is an effect that the cost can be reduced, and the complexity of the work for adjusting the excitation phase can be reduced.

【００２３】請求項２の発明によれば、第１のダイポー
ルアンテナおよび第２のダイポールアンテナの各薄膜導
体を扇形とするように構成したので、送受信での広帯域
特性を改善できるものが得られる効果がある。According to the second aspect of the invention, since the thin film conductors of the first dipole antenna and the second dipole antenna are fan-shaped, it is possible to obtain an effect that the wide band characteristic in transmission and reception can be improved. There is.

【００２４】請求項３の発明によれば、第１のダイポー
ルアンテナおよび第２のダイポールアンテナの各薄膜導
体を唖鈴形とするように構成したので、各薄膜導体長を
短くすることができ、結果的にダイポールアンテナの全
体形状を小形化できるものが得られる効果がある。According to the third aspect of the present invention, since the thin film conductors of the first dipole antenna and the second dipole antenna are configured to be bellows-shaped, the length of each thin film conductor can be shortened. As a result, it is possible to obtain a dipole antenna that can be downsized.

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

【図１】請求項１の発明の一実施例によるクロスダイポ
ールアンテナ装置を示す斜視図である。FIG. 1 is a perspective view showing a crossed dipole antenna device according to an embodiment of the present invention.

【図２】図１におけるクロスダイポールアンテナ装置の
詳細を示す平面図である。FIG. 2 is a plan view showing details of the cross dipole antenna device in FIG.

【図３】請求項２の発明の一実施例によるクロスダイポ
ールアンテナ装置を示す平面図である。FIG. 3 is a plan view showing a crossed dipole antenna device according to an embodiment of the present invention.

【図４】請求項３の発明の一実施例によるクロスダイポ
ールアンテナ装置を示す平面図である。FIG. 4 is a plan view showing a crossed dipole antenna device according to an embodiment of the invention of claim 3;

【図５】従来のダイポールアンテナ装置を示す斜視図で
ある。FIG. 5 is a perspective view showing a conventional dipole antenna device.

【符号の説明】[Explanation of symbols]

１ 誘電体基板 ２ 第１のダイポールアンテナ ３ 第２のダイポールアンテナ ２ａ〜２ｆ，３ａ〜３ｆ 薄膜導体 1 Dielectric Substrate 2 First Dipole Antenna 3 Second Dipole Antenna 2a to 2f, 3a to 3f Thin Film Conductor

【手続補正書】[Procedure amendment]

【提出日】平成５年４月１６日[Submission date] April 16, 1993

【手続補正１】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】００１７[Correction target item name] 0017

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【００１７】つぎに動作について説明する。この実施例
では、ダイポールアンテナ２，３の動作は図５について
説明した場合と同じであり、まず、信号発生器６から送
出された周波数ｆ1 の信号は、例えば平行線からなる給
電線路４により導かれ、誘電体基板１上に形成されたダ
イポールアンテナ２の各薄膜導体２ａ，２ｂに給電され
る。Next, the operation will be described. In this embodiment, the operation of the dipole antennas 2 and 3 is the same as that described with reference to FIG. 5. First, the signal of the frequency f 1 sent from the signal generator 6 is fed by the feed line 4 formed of parallel lines, for example. The thin film conductors 2a and 2b of the dipole antenna 2 formed on the dielectric substrate 1 are guided and fed.

【手続補正２】[Procedure Amendment 2]

【補正対象書類名】図面[Document name to be corrected] Drawing

【補正対象項目名】図１[Name of item to be corrected] Figure 1

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【図１】 [Figure 1]

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 誘電体基板上に薄膜導体で形成された第
１のダイポールアンテナと、上記誘電体基板上に、上記
第１のダイポールアンテナと直交して配置され、上記第
１のダイポールアンテナと周波数帯域が異なり、かつ互
いに直交偏波で独立して励振される薄膜導体で形成され
た第２のダイポールアンテナとを備えたクロスダイポー
ルアンテナ装置。1. A first dipole antenna formed of a thin film conductor on a dielectric substrate, and a first dipole antenna arranged on the dielectric substrate orthogonal to the first dipole antenna. A crossed dipole antenna device comprising: a second dipole antenna formed of a thin film conductor which has different frequency bands and is excited independently by mutually orthogonal polarization. 【請求項２】 誘導体基板上に薄膜導体で形成された第
１のダイポールアンテナと、上記誘電体基板上に、上記
第１のダイポールアンテナと直交して配置され、上記第
１のダイポールアンテナと周波数帯域が異なり、かつ互
いに直交偏波で独立して励振される薄膜導体で形成され
た第２のダイポールアンテナとを備え、上記第１のダイ
ポールアンテナおよび第２のダイポールアンテナの各薄
膜導体を扇形としたクロスダイポールアンテナ装置。2. A first dipole antenna formed of a thin film conductor on a dielectric substrate, and arranged on the dielectric substrate orthogonal to the first dipole antenna, the first dipole antenna having a frequency equal to the frequency of the first dipole antenna. A second dipole antenna formed of thin film conductors having different bands and excited independently of each other by orthogonal polarization, each thin film conductor of the first dipole antenna and the second dipole antenna being fan-shaped. Crossed dipole antenna device. 【請求項３】 誘電体基板上に薄膜導体で形成された第
１のダイポールアンテナと、上記誘電体基板上に、上記
第１のダイポールアンテナと直交して配置され、上記第
１のダイポールアンテナと周波数帯域が異なり、かつ互
いに直交偏波で独立して励振される薄膜導体で形成され
た第２のダイポールアンテナとを備え、上記第１のダイ
ポールアンテナおよび第２のダイポールアンテナの各薄
膜導体を唖鈴形としたクロスダイポールアンテナ装置。3. A first dipole antenna formed of a thin film conductor on a dielectric substrate; and a first dipole antenna arranged on the dielectric substrate orthogonal to the first dipole antenna. A second dipole antenna formed of thin film conductors having different frequency bands and being independently excited by mutually orthogonal polarization, and each thin film conductor of the first dipole antenna and the second dipole antenna is A bell-shaped crossed dipole antenna device.
JP4351092A 1992-12-07 1992-12-07 Cross dipole antenna system Pending JPH06177635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4351092A JPH06177635A (en) 1992-12-07 1992-12-07 Cross dipole antenna system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4351092A JPH06177635A (en) 1992-12-07 1992-12-07 Cross dipole antenna system

Publications (1)

Publication Number Publication Date
JPH06177635A true JPH06177635A (en) 1994-06-24

Family

ID=18414994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4351092A Pending JPH06177635A (en) 1992-12-07 1992-12-07 Cross dipole antenna system

Country Status (1)

Country Link
JP (1) JPH06177635A (en)

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