JPH0378002B2 - - Google Patents
Info
- Publication number
- JPH0378002B2 JPH0378002B2 JP60088956A JP8895685A JPH0378002B2 JP H0378002 B2 JPH0378002 B2 JP H0378002B2 JP 60088956 A JP60088956 A JP 60088956A JP 8895685 A JP8895685 A JP 8895685A JP H0378002 B2 JPH0378002 B2 JP H0378002B2
- Authority
- JP
- Japan
- Prior art keywords
- radio wave
- transmitting
- aircraft
- antenna
- receiving 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.)
- Expired - Lifetime
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
- Transceivers (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は航空機に搭載する電波送受信装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a radio wave transmitting and receiving device mounted on an aircraft.
従来この種の装置として第２図から第４図に示
すものがあつた。第２図は通常の航空機搭載型電
波送受信装置、第３図及び第４図は第２図に示す
もののアイソレーシヨン向上型電波送受信装置で
ある。
Conventionally, there have been devices of this type as shown in FIGS. 2 to 4. FIG. 2 shows an ordinary aircraft-mounted radio wave transmitting/receiving device, and FIGS. 3 and 4 show isolation improved type radio wave transmitting/receiving devices shown in FIG. 2.
図において１は機体、２は送信アンテナ用レド
ーム、３は送信アンテナ、４は受信アンテナ用レ
ドーム、５は受信アンテナである。また第３図の
６は突起物、第４図の７は電波吸収体である。な
お矢印は送信アンテナ３の最大放射方向及び受信
アンテナ４の最大感度方向を示している。 In the figure, 1 is a fuselage, 2 is a radome for a transmitting antenna, 3 is a transmitting antenna, 4 is a radome for a receiving antenna, and 5 is a receiving antenna. Further, 6 in FIG. 3 is a protrusion, and 7 in FIG. 4 is a radio wave absorber. Note that the arrows indicate the maximum radiation direction of the transmitting antenna 3 and the maximum sensitivity direction of the receiving antenna 4.
次に動作について説明する。第２図において送
信アンテナ３から放射された電波は矢印で示した
最大放射方向のみならず、種々の経路を通つて受
信アンテナ５の方向にも伝播する。受信アンテナ
５が図に示すように送信アンテナ３と同一方向を
指向している場合にはこの電波をほぼ最大感度方
向で受信することとなり、電波送受信装置として
所要のアイソレーシヨン量を確保できない場合が
多い。これを解決するために従来は第３図、ある
いは第４図に示す構成がとられていた。 Next, the operation will be explained. In FIG. 2, the radio waves radiated from the transmitting antenna 3 propagate not only in the maximum radiation direction indicated by the arrow, but also in the direction of the receiving antenna 5 through various paths. If the receiving antenna 5 is oriented in the same direction as the transmitting antenna 3 as shown in the figure, this radio wave will be received in the direction of almost maximum sensitivity, and the required amount of isolation cannot be secured as a radio wave transmitting/receiving device. There are many. In order to solve this problem, the configuration shown in FIG. 3 or 4 has conventionally been adopted.
すなわち、第３図の突起物６は金属、あるいは
電波吸収体で形成されたもの、第４図の電波吸収
体７は機体１に貼り付けあるいは塗布されたもの
であり、いずれも送信アンテナ３から受信アンテ
ナ５の方向に伝搬する不要電波を反射あるいは吸
収することによつてアイソレーシヨンの向上を図
るためのものである。 That is, the protrusion 6 in FIG. 3 is made of metal or a radio wave absorber, and the radio wave absorber 7 in FIG. This is to improve isolation by reflecting or absorbing unnecessary radio waves propagating in the direction of the receiving antenna 5.
しかしながら、第３図の構成で十分なアイソレ
ーシヨンを確保するためには、突起物６の寸法も
十分大きくする必要があるため、これが航空機の
飛行時の抗力を増す結果となり、飛行性能とアイ
ソレーシヨン性能との兼ね合いに困難な問題点が
あつた。
However, in order to ensure sufficient isolation with the configuration shown in FIG. There was a difficult problem in balancing the rayon performance.
また、第４図の構成において、電波吸収体７が
不要電波を吸収する能力は、電波吸収体固有の吸
収力及び、その厚さ、使用量によつて決まる。ま
た電波吸収体７は材質によつて決まる固有の耐温
度特性を有し、一般に同じ吸収量を実現できるも
のとしては軽量である程耐温度特性が悪くなると
いう傾向がある。したがつて、航空機搭載のため
には耐温度特性の良い電波吸収体を限られた総重
量範囲内で使用することが要求されるため、いき
おい十分な不要電波の吸収能力が得にくいという
問題点があつた。 Further, in the configuration shown in FIG. 4, the ability of the radio wave absorber 7 to absorb unnecessary radio waves is determined by the absorption power inherent to the radio wave absorber, its thickness, and the amount used. Furthermore, the radio wave absorber 7 has inherent temperature resistance characteristics determined by its material, and generally speaking, as long as the same amount of absorption can be achieved, the lighter the absorber 7 is, the worse the temperature resistance characteristics tend to be. Therefore, in order to be mounted on an aircraft, it is required to use a radio wave absorber with good temperature resistance characteristics within a limited total weight range, which makes it difficult to obtain sufficient ability to absorb unnecessary radio waves. It was hot.
この発明は上記のような問題点を解決するため
になされたもので、航空機の飛行性能及び耐環境
性能を害することなく、送受信アンテナ間のアイ
ソレーシヨンが十分確保できる電波送受信装置を
得ることを目的とする。 This invention was made to solve the above-mentioned problems, and aims to provide a radio wave transmitting and receiving device that can ensure sufficient isolation between transmitting and receiving antennas without impairing the flight performance and environmental resistance of an aircraft. purpose.
この発明に係る電波送受信装置は、機体又は外
装物の外周の一部に送信電波の周波数特性を有す
るコルゲート板を取付たものである。
The radio wave transmitting/receiving device according to the present invention has a corrugated plate having frequency characteristics of transmitted radio waves attached to a part of the outer periphery of the aircraft body or exterior.
この発明においては、コルゲート板が機体又は
外装物の外形を変えることなく送信アンテナから
受信アンテナに伝搬される不要電波を抑圧する。
また、コルゲート板に電波吸収体が使用されてい
ない。
In this invention, the corrugated board suppresses unnecessary radio waves propagated from the transmitting antenna to the receiving antenna without changing the external shape of the aircraft body or exterior.
Also, no radio wave absorber is used in the corrugated board.
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１は機体、２は送信アンテナ
用レドーム、３は送信アンテナ、４は受信アンテ
ナ用レドーム、５は送信アンテナ、８は機体１内
に埋め込まれたコルゲート板、９は低誘電率の誘
電体を材料とするカバーである。
An embodiment of the present invention will be described below with reference to the drawings. In Figure 1, 1 is the fuselage, 2 is the radome for the transmitting antenna, 3 is the transmitting antenna, 4 is the radome for the receive antenna, 5 is the transmitting antenna, 8 is a corrugated plate embedded in the fuselage 1, 9 is a low dielectric constant This is a cover made of dielectric material.
次に実施例の動作について説明する。送信アン
テナ３から放射され、機体１の表面の種々の経路
を通つて受信アンテナ５側に伝搬しようとする不
要電波は、コルゲート板８の形状を使用周波数帯
域に合わせて成形することにより抑圧することが
可能である。 Next, the operation of the embodiment will be explained. Unwanted radio waves radiated from the transmitting antenna 3 and attempting to propagate toward the receiving antenna 5 through various paths on the surface of the aircraft body 1 can be suppressed by shaping the corrugated plate 8 in a shape that matches the frequency band in use. is possible.
この構成は第３図又は第４図に示す従来の構成
と異なり、コルゲート板８及びカバー９を付加し
ても機体１の外形構造が第２図に示す原形と変わ
らないので、母機の飛行性能に及ぼす影響は微小
である。また、電波吸収体を使用していないため
耐環境性上の問題も少ない。 This configuration is different from the conventional configuration shown in FIG. 3 or 4, and even if the corrugated plate 8 and cover 9 are added, the external structure of the fuselage 1 remains the same as the original shape shown in FIG. 2, so the flight performance of the mother aircraft is improved. The effect on this is minimal. Additionally, since no radio wave absorber is used, there are fewer problems with environmental resistance.
なお、上記実施例では飛行時の抗力を極力減少
させるためにコルゲート板８上にカバー９を設け
ているが、カバー９がなくても飛行性能上の問題
がない場合には省略することが可能である。 In the above embodiment, a cover 9 is provided on the corrugated plate 8 in order to reduce the drag force during flight as much as possible, but it can be omitted if there is no problem in flight performance even without the cover 9. It is.
また、コルゲート板８は板状のものを示してい
るが、機体の形状に合わせて湾曲状とすることも
できる。更に、機体１が航空機の外装物例えばタ
ンク等であつても上記実施例と同様の効果が得ら
れる。 Further, although the corrugated plate 8 is shown as being plate-shaped, it can also be curved to match the shape of the aircraft body. Furthermore, even if the fuselage 1 is an exterior part of an aircraft, such as a tank, the same effects as in the above embodiment can be obtained.
以上のように、この発明によれば機体の外周の
一部にコルゲート板を取付けるという簡単な構造
により、送信アンテナと受信アンテナ間のアイソ
レーシヨンの確保が、航空機の飛行性能及び耐環
境性能と整合をとりつつ実現できるので、航空機
搭載型の電波送受信装置として好都合なものが得
られる効果がある。
As described above, according to the present invention, with the simple structure of attaching a corrugated plate to a part of the outer periphery of the aircraft, isolation between the transmitting antenna and the receiving antenna can be ensured, improving the flight performance and environmental resistance of the aircraft. Since it can be realized while maintaining consistency, it has the effect of providing a convenient aircraft-mounted radio wave transmitting/receiving device.
第１図はこの発明の一実施例である航空機搭載
型の電波送受信装置を示す構成図、第２図は通常
の航空機搭載型の電波送受信装置を示す構成図、
第３図及び第４図は従来の航空機搭載型の電波送
受信装置を示す構成図である。
１は機体、３は送信アンテナ、５は受信アンテ
ナ、８はコルゲート板である。なお、図中、同一
符号は同一、又は相当部分を示す。
FIG. 1 is a configuration diagram showing an aircraft-mounted radio wave transmitting/receiving device which is an embodiment of the present invention, and FIG. 2 is a configuration diagram showing a normal aircraft-mounting radio wave transmitting/receiving device.
FIGS. 3 and 4 are configuration diagrams showing a conventional aircraft-mounted radio wave transmitting/receiving device. 1 is the aircraft body, 3 is a transmitting antenna, 5 is a receiving antenna, and 8 is a corrugated board. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
と受信アンテナが離隔して配置される電波送受信
装置において、上記送信アンテナから放射される
送信電波が上記受信アンテナに伝搬される経路の
一部となる上記機体又は外装物の外周に、上記送
信電波の周波数特性を有するコルゲート板を取付
けたことを特徴とする電波送受信装置。 ２ コルゲート板は機体又は外装物の外周面以下
に取付けられ誘電体で覆われていることを特徴と
する特許請求の範囲第１項記載の電波送受信装
置。[Scope of Claims] 1. In a radio wave transmitting/receiving device in which a transmitting antenna and a receiving antenna are arranged separately within the body or exterior of an aircraft, a transmitting radio wave radiated from the transmitting antenna is propagated to the receiving antenna. A radio wave transmitting/receiving device characterized in that a corrugated plate having frequency characteristics of the transmitted radio waves is attached to the outer periphery of the aircraft body or exterior object that forms part of the route. 2. The radio wave transmitting/receiving device according to claim 1, wherein the corrugated plate is attached below the outer peripheral surface of the aircraft body or exterior material and covered with a dielectric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60088956A JPS61248626A (en) | 1985-04-26 | 1985-04-26 | Radio wave transmitting and receiving equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60088956A JPS61248626A (en) | 1985-04-26 | 1985-04-26 | Radio wave transmitting and receiving equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61248626A JPS61248626A (en) | 1986-11-05 |
| JPH0378002B2 true JPH0378002B2 (en) | 1991-12-12 |
Family
ID=13957300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60088956A Granted JPS61248626A (en) | 1985-04-26 | 1985-04-26 | Radio wave transmitting and receiving equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61248626A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10454180B2 (en) | 2016-12-14 | 2019-10-22 | Raytheon Company | Isolation barrier |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5927527B2 (en) * | 1979-06-15 | 1984-07-06 | 株式会社トキメック | slot array antenna |
| JPS5927528B2 (en) * | 1979-07-10 | 1984-07-06 | 株式会社トキメック | Centrally fed slot array antenna device |
-
1985
- 1985-04-26 JP JP60088956A patent/JPS61248626A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61248626A (en) | 1986-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |