JPH0290702A - Antenna system - Google Patents

Antenna system

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Publication number
JPH0290702A
JPH0290702A JP24310188A JP24310188A JPH0290702A JP H0290702 A JPH0290702 A JP H0290702A JP 24310188 A JP24310188 A JP 24310188A JP 24310188 A JP24310188 A JP 24310188A JP H0290702 A JPH0290702 A JP H0290702A
Authority
JP
Japan
Prior art keywords
dielectric
dielectric substrate
ground conductor
antenna
electric field
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
Application number
JP24310188A
Other languages
Japanese (ja)
Other versions
JP2504138B2 (en
Inventor
Yoshihiko Konishi
善彦 小西
Shinichi Sato
眞一 佐藤
Seiji Mano
真野 清司
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 JP24310188A priority Critical patent/JP2504138B2/en
Publication of JPH0290702A publication Critical patent/JPH0290702A/en
Application granted granted Critical
Publication of JP2504138B2 publication Critical patent/JP2504138B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To reduce the mutual coupling between element antennas by arranging a dielectric base with a high dielectric constant respectively to both side faces of the element antenna closely and forming a metallic ground conductor to a face opposite to a face of the dielectric base adhered closely to the element antenna. CONSTITUTION:A signal propagated on a strip line 6 of element antennas 2a, 2b causes a current 7 on the strip line. The current 7 induces an electric field 9 on slot lines 5a, 5b and the electric field 9 is radiated into space from the end of the slot lines 5a, 5b, that is, the end of the dielectric bases 3a, 3b. Since metallic ground conductors A 11a, 11b are placed in parallel with the slot lines 5a, 5b via dielectric bases A 10a, 10b, the electric field 9 radiated in a direction perpendicular to the metallic ground conductors A 11a, 11b, that is, in a direction in parallel with the metallic reflecting plate 1 from the midway of the slot lines 5a, 5b is lost. Thus, the mutual coupling between the element antennas 2a, 2b is decreased.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、レーダや通信用の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 for radar or communication.

〔従来の技術〕[Conventional technology]

第7図は英開昭55−14189号公報に示された従来
のこの種のアンテナ装置の構成図であり、図において、
田は金属反射板、(la)、(21))はこの金属反射
板…と交差して間隔dで配列された素子アンテナである
。第8図は上記素子アンテナ(g a) * ’ 2b
)の構成図、第9図は上記素子アンテナ(ga)、(g
b)の分解図、第10図は上記素子アンテナN1a)、
(lb)の動作を示す図であり、図において、(lll
a)、(8b)は誘電体基板、(la)、(4b)は各
々、上記誘電体基板(8a)の下面および誘電体基板(
8b)の上面に配置された金属地導体、(5a)、(5
b)はこの金属地導体(4a)、(4b)上に構成され
、線路幅が上記誘電体基板(aa)、(ab)の端部に
向けテーバ状に拡大しているスロット線路、+61は上
記誘電体基板(8a) 、 (8b)の間に配置され、
上記スロット線路(5a)、(5b)と直交して配置さ
れたストリップ線路、(7)は上記ストリップ線路16
11に流れる電流、(8)は上記電流(7)により誘起
される磁界、(91は上記スロット線路rsaL(1i
ke)上の電界である。
FIG. 7 is a block diagram of a conventional antenna device of this type disclosed in Japanese Patent Publication No. 55-14189, and in the figure,
1 is a metal reflector, and (la), (21) are element antennas arranged at intervals d intersecting this metal reflector. Figure 8 shows the above element antenna (ga) *' 2b
), and FIG. 9 is a block diagram of the element antenna (ga), (g
Exploded view of b), FIG. 10 is the above element antenna N1a),
(lb), and in the figure, (llll
a) and (8b) are dielectric substrates, (la) and (4b) are the lower surface of the dielectric substrate (8a) and the dielectric substrate (
8b) metal ground conductor placed on the top surface, (5a), (5
b) is a slot line constructed on these metal ground conductors (4a) and (4b), and whose line width expands in a tapered shape toward the ends of the dielectric substrates (aa) and (ab); disposed between the dielectric substrates (8a) and (8b),
A strip line arranged perpendicularly to the slot lines (5a) and (5b), (7) is the strip line 16
11, (8) is the magnetic field induced by the current (7), (91 is the slot line rsaL(1i
ke) is the electric field above.

次に動作VCついて説明する。各素子アンテナ(2a)
、($lb)のストリップ線路(61を伝搬する信号は
、上記ス) IJツブ線路(6)上で電流17)?形成
する・この電流(71により、上記ス)IJツブ線路1
B)のまわりを回転する磁界(8)が誘起される。そし
てこの磁界(8)によりスロット線路(5a)、(6b
)上に電界(9)が誘起される。この電界(9)は上記
スロット線路(5a)、(5b)上を伝搬し、スロット
線路(5a)、(1$b)の端部、すなわち、誘電体基
板(8a)、 (8b)の端部がら空間に放射される。
Next, the operational VC will be explained. Each element antenna (2a)
, ($lb) strip line (the signal propagating through 61 is the above) Current 17) on the IJ tube line (6)? Forming this current (by 71, the above) IJ tube line 1
A magnetic field (8) rotating around B) is induced. This magnetic field (8) causes the slot lines (5a), (6b
) is induced on the electric field (9). This electric field (9) propagates on the slot lines (5a) and (5b), and is applied to the ends of the slot lines (5a) and (1$b), that is, the ends of the dielectric substrates (8a) and (8b). is radiated into space.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

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
、スロット線路(5a)、(5b)上の電界(91は、
上記スロット線路(5a)、(5b)の端部からだけで
なく、スロット線路(aa)、(jib)の途中から上
記金属反射板…と平行な方向にも放射される。そのため
、上記素子アンテナ(8a)から空間に放射された上記
電界(9)は間隔dで隣り合う素子アンテナ(2b)に
結合しやすい。すなわち、素子アンテナrg&)、ri
b)間の相Fi、M合が大きいという課題があった。
Since the conventional antenna device is configured as described above, the electric field (91) on the slot lines (5a) and (5b) is
It is radiated not only from the ends of the slot lines (5a) and (5b) but also from the middle of the slot lines (aa) and (jib) in a direction parallel to the metal reflecting plates. Therefore, the electric field (9) radiated into space from the element antenna (8a) is likely to couple to the element antenna (2b) adjacent at the interval d. That is, the element antenna rg&), ri
b) There was a problem that the phase Fi and M coupling between them was large.

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、素子アンテナ間の相反結合が小さいアンテナ装
置ヶ得ることを目的とする。
This invention was made to solve the above-mentioned problems, and aims to provide an antenna device in which reciprocal coupling between element antennas is small.

〔課題を解決するための手段〕[Means to solve the problem]

この発明に係るアンテナ装置に、素子アンテナの両側面
に各々高誘電率の誘電体基板全密着して配置し、これら
の誘電体基板の上記素子アンテナと密着した面と反対側
の面に金属地導体を構成したものである。
In the antenna device according to the present invention, high permittivity dielectric substrates are disposed on both sides of the element antenna in close contact with each other, and a metal ground is placed on the surface of these dielectric substrates opposite to the surface in close contact with the element antenna. It consists of a conductor.

〔作用〕[Effect]

この発明におけるアンテナ装置は、誘電体基板上に構成
された金属地導体により、素子アンテナから金属反射板
と平行な方向へ放射される電界全遮断し、素子アンテナ
間の相互結合を減少させる。
In the antenna device of the present invention, the metal ground conductor formed on the dielectric substrate completely blocks the electric field radiated from the element antennas in a direction parallel to the metal reflector plate, thereby reducing mutual coupling between the element antennas.

〔実施例〕〔Example〕

以下、この発明の一実苑例を図につ−て説明する。第1
図は実i例におけるアンテナ装置の構成図であり。
Hereinafter, an example of the present invention will be explained with reference to the drawings. 1st
The figure is a configuration diagram of an antenna device in Example I.

図において、Il+は金属反射板、(2a)、(2b)
はこの金属反射板(11上に曽属反射板illと交差し
て間隔dで配列された素子アンテナである。第2図は上
記素子アンテナ(!a)、(2b)の構成図、第3図は
上記素子アンテナ(2a)、(llb)の分解図であり
、図において、(Jla)、(8b)I/i誘電体基板
、(4a)、(4b) rs各々、上記誘電体基板(8
a)の下面およびPi!j電体基板(8b)の上面に配
置された金属地導体 (a a ) + (Is b 
)はこの金属地導体(+a)、(4b)上に構成され、
線路幅が上記訪′1体基板(8a)、(Jlb)の端部
に向けテーパ状に拡大しているスロワ)ffl路。
In the figure, Il+ is a metal reflector, (2a), (2b)
are element antennas arranged on this metal reflector plate (11) at intervals of d, intersecting with the solenoid reflector ill. Figure 2 is a configuration diagram of the element antennas (!a) and (2b), and The figure is an exploded view of the element antennas (2a) and (llb), and in the figure, (Jla), (8b) I/i dielectric substrate, (4a), (4b) rs, and the dielectric substrate ( 8
a) Lower surface and Pi! j Metal ground conductor (a a ) + (Is b
) is constructed on this metal ground conductor (+a), (4b),
A thrower (thrower) ffl path in which the line width increases in a tapered manner toward the ends of the above-mentioned first-body boards (8a) and (Jlb).

6)は上記誘電体基板(8a)、(3b)に間に配置さ
れ、上記スロット線路(5a)、(!i’b)と直交し
て配置されたストリップ線路、171μ上記ストリツプ
線路(6)を流れる電流、(9)は上記スロット線路(
5a)、(5b)上の電界、rloa)+(10b’)
は上記金属地導体(4a)、r4b)に密着した上記誘
電体基板(8a)、(8b)より高誘電率のpA電体基
板A、(ha)。
6) is a strip line disposed between the dielectric substrates (8a) and (3b) and perpendicular to the slot lines (5a) and (!i'b), the strip line (6) having a diameter of 171μ. (9) is the current flowing through the slot line (
5a), electric field on (5b), rloa) + (10b')
is a pA electric substrate A, (ha) having a higher dielectric constant than the dielectric substrate (8a), (8b) which is in close contact with the metal ground conductor (4a), r4b).

C11b)はこの誘電体基板A (10a)、(10b
)の上記金属地導体(lla)、(llb)と反対側の
面に+S成された金属地導体Aである。
C11b) is this dielectric substrate A (10a), (10b
) is a metal ground conductor A with +S formed on the opposite surface to the metal ground conductors (lla) and (llb).

次に動作について説明する。各素子アンテナ(sa、)
、(2b)のストリップ線路161を伝搬する信号は。
Next, the operation will be explained. Each element antenna (sa,)
, (2b), the signal propagating through the strip line 161 is.

上記ストリップ線路(61上で′N、流(7)を形成す
る。
A stream (7) is formed on the strip line (61).

この1区流(71によりスロット線路(5a)、(5b
)上に電界(9)が誘起される。この電界(9)は上記
スロット線路(5a)、(5b)上を伝搬し、スロット
線路C3a) 、 (5b)の端部、すなわち%誘電体
基板(3a)。
Slot line (5a), (5b
) is induced on the electric field (9). This electric field (9) propagates on the slot lines (5a), (5b) and reaches the ends of the slot lines C3a), (5b), that is, the dielectric substrate (3a).

(8b)の端部がら空間に放射される。このとき、金属
地導体A (lla)、(llb)が誘電体基板Ar+
oa)、C1ob)を介して上記スロット線路(5a)
、(5b)と平行に置かれているので上記スロット線路
(5a)(jib)の途中から、上記金属地導体A (
lla)、(llb)に垂直な方向、すなわち金属反射
飯山と平行な方向に放射される上記電界(91はなくな
り、素子アンテナN1a)と素子アンテナ(gb)の間
の相互結合は小さくなる。
It is radiated into space from the end of (8b). At this time, the metal ground conductors A (lla) and (llb) are connected to the dielectric substrate Ar+
oa), C1ob) to the slot line (5a)
, (5b), the metal ground conductor A (
The electric field (91) radiated in the direction perpendicular to lla) and (llb), that is, in the direction parallel to the metal reflection Iiyama, disappears, and the mutual coupling between the element antenna N1a and the element antenna (gb) becomes smaller.

第4図はこのアンテナ装置の他の実施例での素子アンテ
ナrga)、(J?b)の構成図、第5図は他の実施例
での素子アンテナ(jta)、(gb)の分解図であり
、図において(3)は誘電体基板、+41Fiこの誘電
体基板+31の下面に配置された金属地導体、61はこ
の金属地導体イ41上に構成され、線路幅が上記誘電体
基板+31の端部に向けテーパ状に拡大しているスロッ
ト線路、161は上記誘電体基板131の上面に配置さ
れ、上記スロット線路16)と直交して配置され九スト
リップ線路、rtoa)、(1ob)は上記誘電体基板
+31の両側に密着しfe綽電体基板31より高誘電率
の誘電体基板A、(lla)、(llb)はこの誘電体
基板A /10a)、(In)の上記誘電体基板131
と反対側の面に構成された金属地導体Aである。
Fig. 4 is a configuration diagram of element antennas rga) and (J?b) in another embodiment of this antenna device, and Fig. 5 is an exploded view of element antennas (jta) and (gb) in another embodiment. In the figure, (3) is a dielectric substrate, +41Fi is a metal ground conductor disposed on the lower surface of this dielectric substrate +31, and 61 is constructed on this metal ground conductor I41, and the line width is the same as that of the dielectric substrate +31. A slot line 161 tapering toward the end is placed on the top surface of the dielectric substrate 131, and nine strip lines rtoa) and (1ob) are placed orthogonally to the slot line 16). The dielectric substrate A, (lla), (llb) which is in close contact with both sides of the dielectric substrate +31 and has a higher dielectric constant than the FE electric substrate 31 is the dielectric substrate A, (lla), (llb). Substrate 131
A metal ground conductor A is formed on the opposite surface.

第4図、第5図の実施例においても、第2図。FIG. 2 also applies to the embodiments of FIGS. 4 and 5.

第3図の場合と全く同様の効果が期待できる。Exactly the same effect as in the case of FIG. 3 can be expected.

筐た。上記実施例では、誘電体基板+31 、、 (8
a)、(ab)と誘電体基板A (xoa)(1ob)
の長さを同一としているが、第6図に示すように、誘電
体基板:ll 、 (8a)、(8b)と誘電体基板A
 (10a)、(10″0)の長さを変え1両者の長さ
の差t 2 t>oとしてもよイ。尚、誘電体基板13
1 、 (8a)、(8b)、及び、誘電体基板A (
10a ) w (10b)の材質については特に問わ
ない、また上記実施例では素子アンテナ数を素子アンテ
ナr!a)、(2b)の2素子としているが、素子アン
テナ数、および配列間隔についても特に問わない。
It was a cabinet. In the above embodiment, the dielectric substrate +31, , (8
a), (ab) and dielectric substrate A (xoa) (1ob)
However, as shown in Figure 6, the dielectric substrates: ll, (8a), (8b) and the dielectric substrate A
It is also possible to change the lengths of (10a) and (10″0) so that the difference in length between the two is t 2 t>o.In addition, the dielectric substrate 13
1, (8a), (8b), and dielectric substrate A (
The material of 10a)w (10b) is not particularly limited, and in the above embodiment, the number of element antennas is r! Although the two elements shown in a) and (2b) are used, the number of element antennas and the arrangement interval are not particularly limited.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれば、素子アンテナの両側
面に各々高誘電率の誘電体基板を密着して配置し、これ
らの誘電体基板の上記素子アンテナと密着した面と反対
側の面に金属地導体を構成したので、素子アンテナかと
金属反射板と平行な方向へ放射される電界が遮断され、
素子アンテナ間の相互結合の小さいアンテナ装置が得ら
れる。
As described above, according to the present invention, dielectric substrates having a high dielectric constant are arranged in close contact with each side of the element antenna, and the surface of these dielectric substrates is opposite to the surface in close contact with the element antenna. Since the metal ground conductor is configured in the antenna, the electric field radiated in the direction parallel to the element antenna and the metal reflector is blocked.
An antenna device with small mutual coupling between element antennas can be obtained.

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

第1図はこの発明の一実施例によるアンテナ装置の構成
図、第2図はこの発明の一実施例による素子アンテナの
構成図、第8図はこの発明の一実施例による素子アンテ
ナの分解図、第41Ahこの発明の他の実施例による素
子アンテナの溝戎図、第5図はこの発明の他の実施例に
よる素子アンテナの分解図、第6図はこの発明の第3の
実施例による素子アンテナの構成図、第7図は従来のア
ンテナ装置の構成図、第8図は従来の素子アンテナの構
成図、第9図は従来の素子アンテナの分解図、ll、l
o図は従来の素子アンテナの動作を示す図である。 11は金属反射板、  r2a)、(lb)は素子アン
テナ、a+ 、 (8a)、(8b)は誘電体基板、1
41 、 (4a)、(4b)は*属地導体、61 、
 r5a)、(6b)はスロット線路。 61にストリップ線路、(7)は′7IL流、(8)は
磁界、(91は電界、(10a)、(10b)は誘電体
基板As  (lla)。 (ob)は金属地導体Aである。 なお、図中、同一符号は同一 又は相当部分を示す。 第2図 A 第4図 第3図 第6図 第6図 第9図 6:スl−’)・・ノブ瀦正シ5 第8図 6:スト“)・フブ、召良留ト 第10図 7、亀界 手 続 補 正 書(自発) 1、事件の表示 特願昭 63−243101号 3、補正をする者 代表者 士 岐 守 哉 4、代 理 人 6゜ 補正の内容 (1)明細書中筒8頁第16行目に [素子アンテナか と」 とあるのを 「素子アンテナから」 と訂正する。 以 上
FIG. 1 is a configuration diagram of an antenna device according to an embodiment of the present invention, FIG. 2 is a configuration diagram of an element antenna according to an embodiment of the invention, and FIG. 8 is an exploded view of an element antenna according to an embodiment of the invention. , 41Ah A groove cutout diagram of an element antenna according to another embodiment of the invention, FIG. 5 is an exploded view of an element antenna according to another embodiment of the invention, and FIG. 6 is an exploded view of an element antenna according to a third embodiment of the invention. A configuration diagram of an antenna, FIG. 7 is a configuration diagram of a conventional antenna device, FIG. 8 is a configuration diagram of a conventional element antenna, and FIG. 9 is an exploded view of a conventional element antenna.
Figure o is a diagram showing the operation of a conventional element antenna. 11 is a metal reflecting plate, r2a), (lb) is an element antenna, a+, (8a), (8b) is a dielectric substrate, 1
41, (4a), (4b) are *Ground conductors, 61,
r5a) and (6b) are slot lines. 61 is a strip line, (7) is a '7IL current, (8) is a magnetic field, (91 is an electric field, (10a) and (10b) are dielectric substrates As (lla), (ob) is a metal ground conductor A In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Fig. 2 A Fig. 4 Fig. 3 Fig. 6 Fig. 6 Fig. 9 8 Figure 6: Strike ``) Fubu, Sora Ruto Figure 10 Figure 7, Kamekai procedural amendment (voluntary) 1. Indication of the incident Patent Application No. 1983-243101 3. Representative of the person making the amendment Shikimori 4, Agent 6゜Contents of amendment (1) In the 16th line of page 8 of the specification, the phrase ``from an element antenna'' is corrected to ``from an element antenna.''that's all

Claims (1)

【特許請求の範囲】[Claims] 1層の誘電体基板の片面、または2層の密着した誘電体
基板の両側面に配置した金属地導体、この金属地導体上
に配置され、線路幅を誘電体基板端部に向けテーパ状に
拡大させ放射部を構成したスロット線路、及び、誘電体
基板が1層の場合には誘電体基板の上記金属地導体面と
反対側の面に、又、誘電体基板が2層の場合には2層の
誘電体基板ではさまれた面に上記スロット線路と直交す
るように配置されたストリップ線路とから構成された素
子アンテナを、複数個平面状あるいは曲面状の金属反射
板上に、上記誘電体基板が金属反射板と直角に交差する
ように配列したアンテナ装置において、上記素子アンテ
ナの両側に各々上記誘電体基板より高誘電率の誘電体基
板をさらに密着して配置し、これらの誘電体基板の上記
素子アンテナと密着した面と反対側の面に金属地導体を
構成したことを特徴とするアンテナ装置。
A metal ground conductor is placed on one side of a single-layer dielectric substrate, or on both sides of two closely-contacted dielectric substrates, and the line width is tapered toward the edge of the dielectric substrate. The slot line that has been enlarged to form the radiating section, and the surface of the dielectric substrate opposite to the metal ground conductor surface when the dielectric substrate is one layer, or on the side opposite to the metal ground conductor surface when the dielectric substrate is two layers. A plurality of element antennas each consisting of a strip line arranged perpendicularly to the slot line on a surface sandwiched between two layers of dielectric substrates are mounted on a flat or curved metal reflector plate. In an antenna device in which body substrates are arranged to intersect a metal reflector plate at right angles, dielectric substrates having a higher permittivity than the dielectric substrate are arranged on both sides of the element antenna in closer contact with each other, and these dielectric substrates An antenna device characterized in that a metal ground conductor is formed on the surface of the substrate opposite to the surface in close contact with the element antenna.
JP24310188A 1988-09-27 1988-09-27 Antenna device Expired - Lifetime JP2504138B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24310188A JP2504138B2 (en) 1988-09-27 1988-09-27 Antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24310188A JP2504138B2 (en) 1988-09-27 1988-09-27 Antenna device

Publications (2)

Publication Number Publication Date
JPH0290702A true JPH0290702A (en) 1990-03-30
JP2504138B2 JP2504138B2 (en) 1996-06-05

Family

ID=17098808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24310188A Expired - Lifetime JP2504138B2 (en) 1988-09-27 1988-09-27 Antenna device

Country Status (1)

Country Link
JP (1) JP2504138B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002271119A (en) * 2001-03-06 2002-09-20 Ngk Insulators Ltd Antenna
JP2009055414A (en) * 2007-08-28 2009-03-12 Nippon Telegr & Teleph Corp <Ntt> Planar antenna
JP2011244260A (en) * 2010-05-19 2011-12-01 Mitsubishi Electric Corp Antenna device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002271119A (en) * 2001-03-06 2002-09-20 Ngk Insulators Ltd Antenna
JP2009055414A (en) * 2007-08-28 2009-03-12 Nippon Telegr & Teleph Corp <Ntt> Planar antenna
JP2011244260A (en) * 2010-05-19 2011-12-01 Mitsubishi Electric Corp Antenna device

Also Published As

Publication number Publication date
JP2504138B2 (en) 1996-06-05

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