JPS60180205A - Waveguide slot array antenna - Google Patents

Waveguide slot array antenna

Info

Publication number
JPS60180205A
JPS60180205A JP3558984A JP3558984A JPS60180205A JP S60180205 A JPS60180205 A JP S60180205A JP 3558984 A JP3558984 A JP 3558984A JP 3558984 A JP3558984 A JP 3558984A JP S60180205 A JPS60180205 A JP S60180205A
Authority
JP
Japan
Prior art keywords
waveguide
slot
array antenna
slot array
thin film
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
JP3558984A
Other languages
Japanese (ja)
Inventor
Koichi Kitajima
北島 耕一
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 JP3558984A priority Critical patent/JPS60180205A/en
Publication of JPS60180205A publication Critical patent/JPS60180205A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/0006Particular feeding systems
    • H01Q21/0037Particular feeding systems linear waveguide fed arrays
    • H01Q21/0043Slotted waveguides

Abstract

PURPOSE:To improve the electric characteristic and also to attain light weight by utilizing the metal plating technology and the etching technology so as to process a slot with high accuracy. CONSTITUTION:A thin metallic film 7 is formed to the surrounding of a dielectric cylinder 6 having nearly the same outer size as the inner size of a waveguide in matching with the operating frequency by means of the metal plating technology. The thin film 7 is adhered uniformly onto the outer circumference of the dielectric cylinder 6 up to a sufficient thickness for the thin film 7 in this case and the waveguide 1 is formed. Then a mask having a slot pattern required for a slot array antenna is formed and the etching is applied to the waveguide 1 by using said mask so as to process a shunt slot 2 and an edge slot 4 onto the waveguide 1.

Description

【発明の詳細な説明】 〔発明の技術分野〕 Cの発明は導波管スロットアレーアンテナに関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The invention of C relates to a waveguide slot array antenna.

〔従来の技術〕[Conventional technology]

従来の導波管スロットアレーアンテナには、第1図(A
)、 (B)に示すような種々の形式のものがある。
A conventional waveguide slot array antenna is shown in Fig. 1 (A
), (B).

第1図(A)は、シャントスロットアレーアンテナを示
すものであり、(1)は導波管、(2)はシャントスロ
ットであり、導波管(1)の広幅面の中心(3)から所
望寸法りだけ偏位させてシャントスロフト(2)が複数
個形成される。第1図(B)は、エッヂスロットアレー
アンテナを示すものであり、(1)は導波管、(4)は
エッヂスロットであり、導波管(1)の側壁面に所望の
傾き角θ、深さHのエッヂスロット4)が複数個形成さ
れる。
Figure 1 (A) shows a shunt slot array antenna, where (1) is a waveguide and (2) is a shunt slot, from the center (3) of the wide surface of the waveguide (1). A plurality of shunt lofts (2) are formed offset by a desired dimension. FIG. 1(B) shows an edge slot array antenna, in which (1) is a waveguide, (4) is an edge slot, and the side wall surface of the waveguide (1) has a desired inclination angle θ. , a plurality of edge slots 4) having a depth H are formed.

従来この種のアンテナは、板厚が1〜2闘内外のアルミ
ニウム等の延性を利用した押出成型の導波管であり、前
記スロット(2i 、 t41はエンドミルあるいは放
電加工等によって加工される。しかし。
Conventionally, this type of antenna is an extrusion-molded waveguide using the ductility of aluminum or the like with a plate thickness of 1 to 2 mm, and the slots (2i, t41) are processed by an end mill or electrical discharge machining. .

この加工方法では複数個のスロットの偏位量り。This machining method measures the deviation of multiple slots.

イ頃き角θ、深さHが異なるために、ひとつひとつのス
ロットの加工毎に工具の位置調整、角度調整。
Since the cutting angle θ and depth H are different, the position and angle of the tool must be adjusted for each slot machining.

切込量調整が必要であることおよび工具の消耗等により
バラツキが生じて精度が一定以上には同上しないために
放射パターンが劣化するという欠点があった。
This method has the disadvantage that the depth of cut needs to be adjusted and the radiation pattern deteriorates because the precision cannot exceed a certain level due to variations due to tool wear and the like.

〔発明の概要〕[Summary of the invention]

この発明はこのような欠点を除去すべくなされたもので
あり、メッキ、蒸着等のメタルブレーティング技術およ
びエツチング技術を利用し、スロットを精度よく加工す
ることにより、電気特性の良好な導波管スロットアレー
アンテナを提供するものである。
This invention was made to eliminate these drawbacks, and by using metal brating technology such as plating and vapor deposition, and etching technology, and by precisely processing slots, it is possible to create a waveguide with good electrical characteristics. A slot array antenna is provided.

〔発明の実施例〕[Embodiments of the invention]

第2図はこの発明による導波管スロットアレーアンテナ
の1ffT而図であり、第3図(A1. (BJはこの
発明による導波管スロットアレーアンテナの一例を示す
斜視図であり、(6)は誘電体筒、(7)は金属薄膜で
ある。
Figure 2 is a 1ffT diagram of the waveguide slot array antenna according to the present invention, and Figure 3 (A1. (BJ is a perspective view showing an example of the waveguide slot array antenna according to the present invention; (7) is a dielectric cylinder, and (7) is a metal thin film.

第2図に示すように、使用する周波数に合わせた導波管
の内寸法と略同−の外形寸法の誘電体筒(6)の周囲に
例えはメッキあるいは蒸着等のメタルブレーティング技
術によりアルミニウム等の金属薄膜(7)を形成きせる
As shown in Figure 2, aluminum is coated around the dielectric cylinder (6), which has approximately the same external dimensions as the internal dimensions of the waveguide according to the frequency to be used, by metal brating technology such as plating or vapor deposition. A metal thin film (7) is formed.

この場合、金属薄膜(7)の膜厚が導波管として使用で
きるに充分な厚さく例えは周波数10 GHz帯で数μ
m程度)まで誘電体筒(6)の外周に均一に金属薄膜(
7)を付着さぜ導波管(11を形成する。次に。
In this case, the thickness of the metal thin film (7) is sufficient to be used as a waveguide, for example, several microns at a frequency of 10 GHz.
A thin metal film (approximately
7) Attach the waveguide (11) to form.Next.

第3図(A)、 (B)に示すようなスロットアレーア
ンテナの形成に必要なスロットのパターンをもつマスク
を作り、このマスフケ用いて前記導波管(1+をエツチ
ング技術による処理を行い、導波管+1)にシャントス
ロフト(2)およびエッチスロット(41を加工する。
A mask with a slot pattern necessary for forming a slot array antenna as shown in FIGS. 3(A) and 3(B) is made, and the waveguide (1+) is processed using etching technology using this mask mask. A shunt loft (2) and an etch slot (41) are processed on the wave tube +1).

上記のように+1Li成された導波管スロットアレーア
ンテナにおいては、エツチング技術により4)1度よく
加工されたシャントスロット(2)およびエッヂスロッ
ト(4)は9機械加工時に生ずるパリがなくまた。嗜波
管形成時に押出成型等の塑性加工を利用しないためスロ
ット加工によるスロット樽波管の変形が生じないため良
好な電気特性音イ!jることができる。
In the waveguide slot array antenna made of +1Li as described above, the shunt slots (2) and edge slots (4), which have been well machined once, are free from burrs that occur during machining. Because plastic processing such as extrusion molding is not used when forming the wave tube, the slot barrel wave tube does not deform due to slot processing, resulting in good electrical characteristics and sound! I can do it.

なお、上記説明では第3しI(A)、 (B)に示す直
線状に配列された導波管スロットアレーアンテナについ
て述べたが9面状に配列されたJ/−、、合についても
同様に実施可能である。また、実施例では矩形導波管を
用いた導波管スロットアレーアンテナtこついても述べ
たが、導波管の形式やスロットの形式に依らず全ての導
波管スロットアレーアンテナに実施可能である。また、
導波管の周囲を合成樹脂等によりコーティングすること
により防水性を得ることも可能である。
In the above explanation, the waveguide slot array antenna arranged in a straight line as shown in the third section I(A) and (B) was described, but the same applies to the waveguide slot array antenna arranged in a nine-sided pattern. It is possible to implement In addition, although we have discussed the waveguide slot array antenna using a rectangular waveguide in the example, it can be applied to all waveguide slot array antennas regardless of the waveguide type or slot type. be. Also,
It is also possible to obtain waterproofness by coating the periphery of the waveguide with synthetic resin or the like.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれは誘電体筒上に形成した
金属薄膜による導波管をエツチング技術により精度よく
スロット加工が可能であること。
As described above, an advantage of the present invention is that a waveguide made of a metal thin film formed on a dielectric cylinder can be slotted with high precision using etching technology.

および、誘電体筒と非常に薄い金属薄膜で導波管を形成
するため、電気特性の良好な9重量の軽い導波管スロッ
トアレーアンテナが実現できるという効果がある。
In addition, since the waveguide is formed of a dielectric tube and a very thin metal film, it is possible to realize a light waveguide slot array antenna with good electrical characteristics.

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

第1図(A)、 (Blは従来の導波管スロットアレー
アンテナの斜視図、第2図はこの発明による導波管スロ
ットアレーアンテナの一実施例の断面図、第3図(A)
、 (B)はこの発明による導波管スロットアレーアン
テナの一実施例のか(視図である。 図中、(1)は導波管、(2)はシャントスロット、(
4)はエッヂスロット、(61は誘電体筒、(7)は金
属薄膜である。 なお9図中同一あるいは相当部分には同一符号を付して
示しである。 代理人 大 岩 増 11E 第1図(A) 第 1 図CB) 第2図 第3図(A) 第3 図(β9
1(A), (Bl is a perspective view of a conventional waveguide slot array antenna, FIG. 2 is a sectional view of an embodiment of a waveguide slot array antenna according to the present invention, and FIG. 3(A)
, (B) is a perspective view of an embodiment of the waveguide slot array antenna according to the present invention. In the figure, (1) is a waveguide, (2) is a shunt slot, (
4) is an edge slot, (61 is a dielectric cylinder, and (7) is a metal thin film. In Figure 9, the same or corresponding parts are indicated by the same reference numerals. Agent: Masu Oiwa 11E 1st Figure (A) Figure 1 Figure CB) Figure 2 Figure 3 (A) Figure 3 (β9

Claims (1)

【特許請求の範囲】[Claims] 複数個のスロットを設けた導波管を複数個組合せた導波
管スロットアレーアンテナにおいて、上記導波管を使用
する周波数に合わせた導波管の内寸法と略同−の外形寸
法の誘電体筒と金総薄膜とにより形成するとともにエツ
チング技術を用いて上記金属薄膜にスロット盆形成して
なることを特徴とする導波管スロットアレーアンテナ。
In a waveguide slot array antenna in which a plurality of waveguides each having a plurality of slots are combined, a dielectric material having an outer dimension approximately the same as the inner dimension of the waveguide corresponding to the frequency at which the waveguide is used. A waveguide slot array antenna characterized in that it is formed of a tube and a metal thin film, and a slot tray is formed on the metal thin film using etching technology.
JP3558984A 1984-02-27 1984-02-27 Waveguide slot array antenna Pending JPS60180205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3558984A JPS60180205A (en) 1984-02-27 1984-02-27 Waveguide slot array antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3558984A JPS60180205A (en) 1984-02-27 1984-02-27 Waveguide slot array antenna

Publications (1)

Publication Number Publication Date
JPS60180205A true JPS60180205A (en) 1985-09-14

Family

ID=12445970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3558984A Pending JPS60180205A (en) 1984-02-27 1984-02-27 Waveguide slot array antenna

Country Status (1)

Country Link
JP (1) JPS60180205A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311200A (en) * 1991-06-18 1994-05-10 Malibu Research Associates, Inc. Millimeter wave variable width waveguide scanner
US5717410A (en) * 1994-05-20 1998-02-10 Mitsubishi Denki Kabushiki Kaisha Omnidirectional slot antenna

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226392B2 (en) * 1972-11-10 1977-07-13
JPS5515367U (en) * 1978-07-18 1980-01-31
JPS5632806A (en) * 1979-06-28 1981-04-02 Furuno Electric Co Ltd Dielectric antenna and its manufacture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226392B2 (en) * 1972-11-10 1977-07-13
JPS5515367U (en) * 1978-07-18 1980-01-31
JPS5632806A (en) * 1979-06-28 1981-04-02 Furuno Electric Co Ltd Dielectric antenna and its manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311200A (en) * 1991-06-18 1994-05-10 Malibu Research Associates, Inc. Millimeter wave variable width waveguide scanner
US5717410A (en) * 1994-05-20 1998-02-10 Mitsubishi Denki Kabushiki Kaisha Omnidirectional slot antenna

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