JPH02186805A - Antenna device - Google Patents
Antenna deviceInfo
- Publication number
- JPH02186805A JPH02186805A JP688389A JP688389A JPH02186805A JP H02186805 A JPH02186805 A JP H02186805A JP 688389 A JP688389 A JP 688389A JP 688389 A JP688389 A JP 688389A JP H02186805 A JPH02186805 A JP H02186805A
- Authority
- JP
- Japan
- Prior art keywords
- feed
- parasitic element
- parasitic
- antenna device
- heat
- 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
Links
- 230000003071 parasitic effect Effects 0.000 claims abstract description 35
- 239000004020 conductor Substances 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000003989 dielectric material Substances 0.000 description 4
- LTPBRCUWZOMYOC-UHFFFAOYSA-N Beryllium oxide Chemical compound O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は無給電素子を用いるアンテナ装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an antenna device using a parasitic element.
第５図は従来のアンテナ装置を示す断面図であシ１図に
おいて、（１）は給電素子、（２）は給電素子（１）に
接続でれた給電線路、（３）は地導体、（４）は基板。FIG. 5 is a sectional view showing a conventional antenna device. In FIG. 1, (1) is a feeding element, (2) is a feeding line connected to the feeding element (1), (3) is a ground conductor, (4) is the board.
（５）は無給ｍｓ子、（６）は無給電素子（５）を所定
の位置に固足するサポートである。(5) is a parasitic element, and (6) is a support that fixes the parasitic element (5) in a predetermined position.
次に動作につめて説明する。従来のアンテナ装置は上記
のように構成これ、給１１線路（２）から給電された信
号は給電素子ｉｌｌに電流を流し、給電素子（１１と地
導体（３）に挾まれた基板に蓄積されたエネルギーを電
波として放射する。このとき、給電素子（１）と無給電
素子（５）の相互結合によシ、無給！素子（５）にも１
′流が流れるため、無＃電素子（５）も放射素子として
動作する。廿ボート（６）は給電素子（１）と無給電素
子（５）を所定の位置関係に固定し、アンテナの動作の
最適状態を維持している。Next, the operation will be explained. The conventional antenna device is constructed as described above.The signal fed from the feed line 11 (2) causes a current to flow through the feed element ill, and is accumulated on the substrate sandwiched between the feed element (11) and the ground conductor (3). radiates the energy as radio waves.At this time, due to the mutual coupling between the feed element (1) and the parasitic element (5), 1 is also generated in the non-feed element (5).
Since the current flows, the electroless element (5) also operates as a radiating element. The floating boat (6) fixes the feeding element (1) and the parasitic element (5) in a predetermined positional relationship, thereby maintaining the optimum operation of the antenna.
従来のアンテナ装置は以上のように構成されているので
、無給電素子（５）はサポート（６）で支持されている
だけなので機械的に弱く、給電素子（１）と無給電素子
（５）の固定精度が悪い、振動や衝撃に対しても弱いと
いう課題があった。また宇宙用飛翔体アンテナとして用
いようとするときには、アンテナは約１０００℃以上の
温度になるため、サポート（６）や無給１１Ｌ素子（５
）等が熱によシ変形または破壊するという課題があった
。Since the conventional antenna device is configured as described above, the parasitic element (5) is mechanically weak because it is only supported by the support (6), and the parasitic element (1) and the parasitic element (5) The problem was that the fixing accuracy was poor, and it was also vulnerable to vibration and shock. In addition, when trying to use it as a spacecraft antenna, the temperature of the antenna will exceed approximately 1000°C, so the support (6) and the unfed 11L element (5
) etc. were deformed or destroyed by heat.
この発明は上記のような課題を解消するためになされた
もので、無給電素子（５）の固定精度が高く。This invention was made to solve the above problems, and the parasitic element (5) can be fixed with high precision.
耐掘性、耐衝撃性を有した高信頼性のアンテナ装置を得
、かつ、 Ｎ１００℃以上の温度に耐える耐熱性に愛
れたアンテナ装置を得ることを目的とする。The purpose of the present invention is to obtain a highly reliable antenna device having digging resistance and impact resistance, and to obtain an antenna device with good heat resistance that can withstand temperatures of N100°C or higher.
この発明に係るアンテナ装置は、給電素子＋１１と無給
電素子（５）を誘電体にて基板（４）と一体で構成した
ものであり、さらに上記誘電体としてｔｏｏｏ’ｃ以上
の温度に耐える耐熱、Ｓ２体を用いたものである。The antenna device according to the present invention includes a feeding element +11 and a parasitic element (5) made of a dielectric and integrated with a substrate (4), and furthermore, the dielectric is made of a heat-resistant material that can withstand temperatures exceeding too'c. , S2 body is used.
この発明におけるアンテナ装置は、給電素子（１１と無
給電素子（５）が耐熱誘電体で一体で構成されるため、
無給電素子（５）が給電素子（１）に対して高精度で固
定され、耐振性、耐衝撃性を有し、１０００℃以上の潰
れた耐熱性を有する高信頼性アンテナ装置を実現するこ
とができる。In the antenna device according to the present invention, since the feed element (11) and the parasitic element (5) are integrally made of a heat-resistant dielectric,
To realize a highly reliable antenna device in which a parasitic element (5) is fixed to a feeding element (1) with high precision, has vibration resistance and impact resistance, and has crushed heat resistance of 1000 degrees Celsius or more. Can be done.
以下、この発明の一実施例を図について説明する。第１
図において、（７）は耐熱誘電体である。An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (7) is a heat-resistant dielectric.
次に動作について説明する。給電線路（２）から給電さ
れた信号は給電素子（１）に電流を流し、給電素子（１
１と地導体（３１に挾まれた耐熱誘電体（７）に蓄積さ
れたエネルギーを電波として放射する。このとき。Next, the operation will be explained. The signal fed from the feed line (2) causes a current to flow through the feed element (1), causing the signal to flow through the feed element (1).
The energy accumulated in the heat-resistant dielectric material (7) sandwiched between 1 and the ground conductor (31) is radiated as radio waves.
給電素子＋１１と無給電素子（５）の相互結合によシ、
無給電素子（５）にも電流が流れるため、無給電素子（
５）も放射素子として動作する。給電素子＋１１と無給
電素子（５）は耐熱誘電体（７）により一体化されてい
るので高精度で固定はれ、耐振性、耐衝撃性を有し。Due to the mutual coupling between the feed element +11 and the parasitic element (5),
Since current also flows through the parasitic element (5), the parasitic element (
5) also operates as a radiating element. Since the feed element +11 and the parasitic element (5) are integrated by a heat-resistant dielectric (7), they are fixed with high precision, have vibration resistance, and have shock resistance.
１０００℃以上でも変形や破壊を起こさない高信頼性を
もつという効果がある。It has the effect of having high reliability without causing deformation or destruction even at temperatures above 1000°C.
次にこの発明の他の実施例を図について説明する。第２
図において＃（１）はダイポールを用いた給電素子であ
る。Next, another embodiment of the invention will be described with reference to the drawings. Second
In the figure, #(1) is a feeding element using a dipole.
次に動作について説明する。給１！巌路（２）から給電
された信号は給電素子（１）に電流を流し、給電素子（
１１と地導体（３）に挾まれた耐熱誘電体に蓄積された
エネルギーを電波として放射する。このとき。Next, the operation will be explained. Salary 1! The signal fed from Iwaji (2) causes a current to flow through the feed element (1), and the signal feeds the feed element (1).
The energy accumulated in the heat-resistant dielectric material sandwiched between 11 and the ground conductor (3) is radiated as radio waves. At this time.
給電素子（１）と無給電素子（５）の相互結合により、
無給電素子（５）にも電流が流れるため、無給電素子（
５）も放射素子として動作する。給１゛素子であるダイ
ポールはダイポールに直交する面内でほぼ無指向性を有
するので、アンテナの指向性もほぼ無指向性になる。給
電素子（１１と無給電素子（５）は耐熱誘電体（７１に
より一体化されているので高精度で固定され、耐振性、
耐衝堪性を有し、１０００℃以上でも変形や破壊を起こ
ζない高信頼性をもつという効果がある。Due to the mutual coupling between the feeding element (1) and the parasitic element (5),
Since current also flows through the parasitic element (5), the parasitic element (
5) also operates as a radiating element. Since the dipole, which is a single-feed element, has almost omnidirectionality in a plane orthogonal to the dipole, the directivity of the antenna is also almost omnidirectional. The feed element (11) and the parasitic element (5) are integrated with a heat-resistant dielectric (71), so they are fixed with high precision and have excellent vibration resistance.
It has impact resistance and is highly reliable as it does not deform or break even at temperatures above 1000°C.
第３図はこの発明の他の実施例であシ、給１！素子（１
）として２つのダイポールを直交して配置し。FIG. 3 shows another embodiment of this invention. Element (1
), two dipoles are placed orthogonally.
第１の給電素子（１ａ）とほぼ平行に第１の無給電素子
（５ａ）を固定し、第２の給電素子（１ｂ）とほぼ平行
に第２の無給電素子（５ｂ）を固定して２つの直交する
偏波を放射するようにしたものであシ。A first parasitic element (5a) is fixed substantially parallel to the first feeding element (1a), and a second parasitic element (5b) is fixed substantially parallel to the second feeding element (1b). It is designed to emit two orthogonal polarized waves.
そｈぞれの偏波を９０°の位相差で給電することにより
１円偏波を放射することができる。A circularly polarized wave can be emitted by feeding each polarized wave with a phase difference of 90°.
第４図はこの発明のさらに他の実施例であシ。FIG. 4 shows yet another embodiment of the invention.
複数の無給電素子（５）を給電素子（１）の前後に配置
し。A plurality of parasitic elements (5) are arranged before and after the feeding element (1).
第１の無給電素子（５ａ）を半波長よシ少し長い反射器
とし、他の無給電素子（ｓｂ）、 （５ｃ）・・・、
を半波長よシ短い導波器として前記反射器と反対側に配
置した八木アンテナを耐熱誘電体（７１で一体化構成し
たものである。このアンテナは上記実施例と同様、耐熱
性を有し２機械的に強めという特徴をもちながら、一方
向に高い指向性を有する効果がある。The first parasitic element (5a) is a reflector slightly longer than half a wavelength, and the other parasitic elements (sb), (5c)...
The Yagi antenna, which is placed on the opposite side of the reflector as a waveguide shorter than half a wavelength, is integrated with a heat-resistant dielectric (71).This antenna has heat resistance as well as the above embodiment. 2.While having the characteristic of being mechanically strong, it has the effect of having high directivity in one direction.
耐熱誘電体としては、１０００℃以上の温度に耐えるも
のとして例えば浴融シリカ、セラミックス。Examples of heat-resistant dielectrics that can withstand temperatures of 1000°C or higher include bath-fused silica and ceramics.
アルミナ、ベリリア、マグネシア、炭化珪素などが使用
できる。Alumina, beryllia, magnesia, silicon carbide, etc. can be used.
以上のようにこの発明によれば、耐熱ｓｔｈ体（７）を
用いて給電素子（１）と無給電素子（５）を一体で構成
したので、高精度で無給電素子（５）を固定でき、耐振
性、耐衝撃性等の機械的特性を高め、１０００℃以上の
耐熱性を有する高信頼性宇宙飛翔体用アンテナ装置が得
られる効果がある。As described above, according to the present invention, since the power feeding element (1) and the parasitic element (5) are integrally constructed using the heat-resistant sth body (7), the parasitic element (5) can be fixed with high precision. This has the effect of providing a highly reliable antenna device for spacecraft that has improved mechanical properties such as vibration resistance and impact resistance, and has heat resistance of 1000° C. or higher.
第」図はこの発明の一実施例によるアンテナ装置を示す
図、第２図〜第４図はこの発明の他の実施例を示す図、
第５図は従来のアンテナ装置を示す断面図である。
図において（１）は給電素子、（２）は給電線路、（３
）は地導体、（５）は無給電素子、（７１は耐熱誘電体
である。
なお１図中、同一符号は同一 または相当部分を示す。
代坤人大岩増雄
第
図Fig. 1 is a diagram showing an antenna device according to one embodiment of the present invention, and Figs. 2 to 4 are diagrams showing other embodiments of the invention.
FIG. 5 is a sectional view showing a conventional antenna device. In the figure, (1) is the feed element, (2) is the feed line, and (3
) is a ground conductor, (5) is a parasitic element, and (71 is a heat-resistant dielectric material. In each figure, the same reference numerals indicate the same or corresponding parts. Figure 1 by Masuo Oiwa)
Claims (1)
記給電線路に接続されない無給電素子とから構成される
アンテナ装置において、前記給電素子と無給電素子とを
耐熱誘電体で一体化したことを特徴とするアンテナ装置
。In an antenna device comprising a feed line, a feed element connected to the feed line, and a parasitic element not connected to the feed line, the feed element and the parasitic element are integrated with a heat-resistant dielectric. An antenna device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP688389A JPH02186805A (en) | 1989-01-13 | 1989-01-13 | Antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP688389A JPH02186805A (en) | 1989-01-13 | 1989-01-13 | Antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02186805A true JPH02186805A (en) | 1990-07-23 |
Family
ID=11650631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP688389A Pending JPH02186805A (en) | 1989-01-13 | 1989-01-13 | Antenna device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02186805A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05145316A (en) * | 1991-06-27 | 1993-06-11 | Mitsubishi Electric Corp | Filter antenna system |
| JPH07240622A (en) * | 1994-02-28 | 1995-09-12 | Nippon Dengiyou Kosaku Kk | Bi-directional microstrip antenna |
| US5870057A (en) * | 1994-12-08 | 1999-02-09 | Lucent Technologies Inc. | Small antennas such as microstrip patch antennas |
| JP2003051708A (en) * | 2001-08-06 | 2003-02-21 | Nippon Dengyo Kosaku Co Ltd | Antenna |
| JP2008148305A (en) * | 2006-12-04 | 2008-06-26 | Agc Automotive Americas R & D Inc | Beam-tilted cross-dipole dielectric antenna |
-
1989
- 1989-01-13 JP JP688389A patent/JPH02186805A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05145316A (en) * | 1991-06-27 | 1993-06-11 | Mitsubishi Electric Corp | Filter antenna system |
| JPH07240622A (en) * | 1994-02-28 | 1995-09-12 | Nippon Dengiyou Kosaku Kk | Bi-directional microstrip antenna |
| US5870057A (en) * | 1994-12-08 | 1999-02-09 | Lucent Technologies Inc. | Small antennas such as microstrip patch antennas |
| JP2003051708A (en) * | 2001-08-06 | 2003-02-21 | Nippon Dengyo Kosaku Co Ltd | Antenna |
| JP4516246B2 (en) * | 2001-08-06 | 2010-08-04 | 日本電業工作株式会社 | antenna |
| JP2008148305A (en) * | 2006-12-04 | 2008-06-26 | Agc Automotive Americas R & D Inc | Beam-tilted cross-dipole dielectric antenna |
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