JPS63127601A - Strip line filter - Google Patents

Strip line filter

Info

Publication number
JPS63127601A
JPS63127601A JP61274862A JP27486286A JPS63127601A JP S63127601 A JPS63127601 A JP S63127601A JP 61274862 A JP61274862 A JP 61274862A JP 27486286 A JP27486286 A JP 27486286A JP S63127601 A JPS63127601 A JP S63127601A
Authority
JP
Japan
Prior art keywords
base
electrodes
electrode
dielectric substrate
circumferential face
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
JP61274862A
Other languages
Japanese (ja)
Inventor
Toshio Nishikawa
敏夫 西川
Yohei Ishikawa
容平 石川
Jun Hattori
準 服部
Hideyuki Kato
英幸 加藤
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP61274862A priority Critical patent/JPS63127601A/en
Publication of JPS63127601A publication Critical patent/JPS63127601A/en
Pending legal-status Critical Current

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  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To attain mass-production by providing a pyramid-shaped dielectric base, forming a ground electrode on the inner circumferential face of the base and forming a resonance electrode on an outer circumference of the base so as to form electrodes by a general method. CONSTITUTION:The inner face of a dielectric base 1 is formed cylindrical and the outer face is formed as a rectangular cylinder, the ground electrode 2 is formed on the entire circumferential face and lead-out parts 2a, 2b are led out of both ends of the electrode 2. The lead-out parts 2a, 2b are arranged to both end faces of the base 1 opposed to each other and connected by the prolonged electrode 3 with a prescribed width formed to the outer circumferential face of the base 1 along the axial center of the rectangular cylinder of the base. Five resonance electrodes 4-8 are led out in parallel at a prescribed interval in the circumferential direction along the outer circumferential face of the base 1 from one side of the electrode 3. Moreover, terminal electrodes 9, 10 are formed each of the electrodes 4-8 as the input or output electrodes. The electrodes such as the resonance electrodes are formed by printing and backing conductive ink such as silver paste or the like to each plate of the outer circumference of the base by means of the screen print or the like.

Description

【発明の詳細な説明】 (a)産業上の利用分野 この発明は、例えばバンドパスフィルタとして使用され
るストリップラインフィルタに関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a stripline filter used as a bandpass filter, for example.

(′b)従来の技術 従来、ストリップラインを用いたフィルタとして、誘電
体基板の一方の面に接′地電極を施し、他の面にストリ
ップラインの共振電極を配列したも。これを解決するも
のとして、例えば第3図の斜視図に示すようなストリッ
プラインフィルタが知られている。
('b) Prior Art Conventionally, as a filter using strip lines, a ground electrode is provided on one surface of a dielectric substrate, and resonant electrodes of strip lines are arranged on the other surface. As a solution to this problem, a stripline filter as shown in the perspective view of FIG. 3, for example, is known.

この図のストリップラインフィルタは5段のコムライン
型で、図における符号1は円筒状の誘電体基板であり、
この誘電体基板1の内周面全面には接地電極2が形成さ
れ、外周面に共振電極4〜8が所定間隔をおいて並列に
設けられ、各共振電極の一端が延出電極3により接続さ
れて、他端が開放されている。また、延出電極3は誘電
体基板の側面に設けられた延出部2a、  2bによっ
て接地電極2と接続され、共振電極4,8のそれぞれか
らは、入力または出力電極としての端子電極9.10が
設けられている。
The stripline filter in this figure is a five-stage combline type, and the reference numeral 1 in the figure is a cylindrical dielectric substrate.
A ground electrode 2 is formed on the entire inner peripheral surface of the dielectric substrate 1, and resonant electrodes 4 to 8 are provided in parallel at predetermined intervals on the outer peripheral surface, and one end of each resonant electrode is connected by an extending electrode 3. and the other end is open. Further, the extended electrode 3 is connected to the ground electrode 2 by extensions 2a and 2b provided on the side surface of the dielectric substrate, and from each of the resonant electrodes 4 and 8, a terminal electrode 9. is connected as an input or output electrode. 10 are provided.

(C)発明が解決しようとする問題点 このようなストリップラインフィルタは誘電体基板が円
筒状であり、共振電極を円筒面に形成するために、特殊
な印刷方法によって電極を形成しなければならず、量産
が困難であるという問題があった。
(C) Problems to be Solved by the Invention In such a stripline filter, the dielectric substrate is cylindrical, and in order to form the resonant electrodes on the cylindrical surface, the electrodes must be formed using a special printing method. First, there was the problem that mass production was difficult.

この発明はこのような従来の問題点を解消して、一般的
な方法によって製造できるようにし、量産を可能とした
ストリップラインフィルタの提供を目的とする。
The object of the present invention is to solve these conventional problems and provide a stripline filter that can be manufactured by a general method and that can be mass-produced.

Cdi問題点を解決するための手段 この発明は、角筒状の誘電体基板を備え、この誘電体基
板の内周面に接地電極を形成し、且つ前記誘電体基板の
外周面に共振電極を形成したことを特徴とする。
Means for Solving Cdi Problems This invention comprises a rectangular cylindrical dielectric substrate, a ground electrode is formed on the inner peripheral surface of the dielectric substrate, and a resonant electrode is formed on the outer peripheral surface of the dielectric substrate. It is characterized by the fact that it has been formed.

(e)作用 以上のように誘電体基板を角筒状に形成したため、この
基板の外周面が複数の平面から構成されることになる。
(e) Effect Since the dielectric substrate is formed into a rectangular tube shape as described above, the outer circumferential surface of this substrate is composed of a plurality of planes.

したがってこの各平面にスクリーン印刷等の方法で電極
となる導電性インクを印刷することができる。このよう
な印刷を各平面毎に行うことによって、所定の共振電極
等を形成することができる。
Therefore, conductive ink that becomes electrodes can be printed on each of these planes by a method such as screen printing. By performing such printing on each plane, predetermined resonant electrodes and the like can be formed.

(fl実施例 第1図は、この発明を5段コムライン型ストリップライ
ンフィルタに通用した一実施例の斜視図である。この図
において符号1は誘電体基板であり、内面が円筒状で、
外面が四角筒状に形成されたセラミクスからなっている
。この誘電体基板1の内周面全面には接地電極2が形成
され、この接地電極2の両端部のそれぞれの一部分から
は、所定幅の延出部2a、  2bが引き出されている
。これらの延出部2a、2bは誘電体基板1の互いに対
向する両端面上に配置され、誘電体基板1の角筒軸芯に
沿う方向で誘電体基板1の外周面に形成された所定幅の
延出電極3により接続されている延出電極3の一辺から
は誘電体基板1の外周面に沿って周方向の一方向へ5本
の共振電極4〜8が所定間隔をおいて並列に引き出され
ている。なお、両側に配置された共振電極4.8のそれ
ぞれからは、入力または出力電極としての端子電極9.
10が形成されている。
(fl Example) Fig. 1 is a perspective view of an example in which the present invention is applied to a 5-stage combline type stripline filter.
It is made of ceramics with a square cylindrical outer surface. A ground electrode 2 is formed on the entire inner peripheral surface of the dielectric substrate 1, and extending portions 2a and 2b of a predetermined width are drawn out from a portion of each end of the ground electrode 2. These extending portions 2a and 2b are arranged on both end faces of the dielectric substrate 1 facing each other, and have a predetermined width formed on the outer peripheral surface of the dielectric substrate 1 in a direction along the axis of the rectangular cylinder of the dielectric substrate 1. From one side of the extended electrode 3 connected by the extended electrode 3, five resonant electrodes 4 to 8 are arranged in parallel at predetermined intervals in one direction in the circumferential direction along the outer peripheral surface of the dielectric substrate 1. It's being pulled out. Note that from each of the resonance electrodes 4.8 arranged on both sides, a terminal electrode 9.8 is connected as an input or output electrode.
10 are formed.

なお、これらの共振電極4〜8のそれぞれの一端は延出
電極3に接続された短絡端とされ、これらの他端は開放
端とされている。
Note that one end of each of these resonant electrodes 4 to 8 is a short-circuited end connected to the extending electrode 3, and the other end thereof is an open end.

このような共振電極等の電極は誘電体基板外周面の各平
面に対してスクリーン印刷等の印刷方法によって銀ペー
スト等の導電性インクを印刷し、焼付けることによって
形成される。
Electrodes such as such resonant electrodes are formed by printing conductive ink such as silver paste on each plane of the outer circumferential surface of the dielectric substrate using a printing method such as screen printing, and then baking it.

第2図はこの発明に係る他の実施例を表すストリンブラ
インフィルタの斜視図である。この図においては、誘電
体基板の外周面に角筒軸芯に沿う方向で共振電極11.
12が形成されている。なお、共振電極11には信号の
入出力電極として用いられる端子電極13が延出されて
いる。
FIG. 2 is a perspective view of a string line filter representing another embodiment of the present invention. In this figure, a resonant electrode 11.
12 are formed. Note that a terminal electrode 13 extending from the resonant electrode 11 is used as a signal input/output electrode.

以上のように誘電体基板を角筒状に形成したため、誘電
体基板を容易に保持することができ、その誘電体基板の
外周面はそれぞれ平面であるため、通常の印刷方法によ
って電極パターンを印刷することができる。
Since the dielectric substrate is formed into a rectangular tube shape as described above, the dielectric substrate can be easily held, and since each of the outer peripheral surfaces of the dielectric substrate is flat, the electrode pattern can be printed using a normal printing method. can do.

上記実施例は角筒状誘電体基板の内面が円筒状の例であ
ったが、外周面と同様に内周面もまた多角形状に形成す
ることもできる。また、実施例はコムライン型ストリッ
プラインフィルタの例であったが、インターデジタル型
等の他のタイプのストリップラインフィルタについても
同様に適用できる。
In the above embodiment, the inner surface of the rectangular cylindrical dielectric substrate is cylindrical, but like the outer surface, the inner surface may also be formed into a polygonal shape. Further, although the embodiment is an example of a combline type stripline filter, the present invention can be similarly applied to other types of stripline filters such as an interdigital type.

(幻発明の効果 以上のようにこの発明によれば、誘電体基板の外周面が
複数の平面から形成されるため、通常の印刷方法によっ
て共振電極等の電極を容易に形成することができ、量産
が可能となる。このため製品としてのコストを低減する
ことができる。
(Effects of the Phantom Invention As described above, according to the present invention, since the outer peripheral surface of the dielectric substrate is formed from a plurality of planes, electrodes such as resonant electrodes can be easily formed by ordinary printing methods. Mass production becomes possible, which reduces the cost of the product.

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

第1図および第2図はこの発明の実施例を示し、第1図
は角筒状誘電体基板の外周面に周方向に複数の共振電極
を形成した場合の斜視図であり、第2図はその外周面の
軸芯方向に沿って共振電極を形成した場合の斜視図であ
る。また、第3図は従来例の斜視図である。 1−誘電体基板、 2−接地電極、 3−延出電極、 4〜8−共振電極、 9.10一端子電極。
1 and 2 show an embodiment of the present invention, FIG. 1 is a perspective view of a case where a plurality of resonant electrodes are formed in the circumferential direction on the outer peripheral surface of a rectangular cylindrical dielectric substrate, and FIG. 2 is a perspective view of a case where a resonant electrode is formed along the axial direction of the outer circumferential surface thereof. FIG. Moreover, FIG. 3 is a perspective view of a conventional example. 1-dielectric substrate, 2-ground electrode, 3-extended electrode, 4-8-resonant electrode, 9.10 one-terminal electrode.

Claims (1)

【特許請求の範囲】[Claims] (1)角筒状の誘電体基板を備え、この誘電体基板の内
周面に接地電極を形成し、且つ前記誘電体基板の外周面
に共振電極を形成したことを特徴とするストリップライ
ンフィルタ。
(1) A strip line filter comprising a rectangular cylindrical dielectric substrate, a ground electrode formed on the inner peripheral surface of the dielectric substrate, and a resonant electrode formed on the outer peripheral surface of the dielectric substrate. .
JP61274862A 1986-11-18 1986-11-18 Strip line filter Pending JPS63127601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61274862A JPS63127601A (en) 1986-11-18 1986-11-18 Strip line filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61274862A JPS63127601A (en) 1986-11-18 1986-11-18 Strip line filter

Publications (1)

Publication Number Publication Date
JPS63127601A true JPS63127601A (en) 1988-05-31

Family

ID=17547608

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61274862A Pending JPS63127601A (en) 1986-11-18 1986-11-18 Strip line filter

Country Status (1)

Country Link
JP (1) JPS63127601A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5646302A (en) * 1979-09-22 1981-04-27 Murata Mfg Co Ltd Strip line filter
JPS5924166U (en) * 1982-07-31 1984-02-15 株式会社同通 drug spray device
JPS6033604U (en) * 1983-08-16 1985-03-07 出光興産株式会社 Ultrasonic thickness gauge medium supply structure
JPS60153617A (en) * 1984-01-24 1985-08-13 Matsushita Electric Ind Co Ltd Tuner
JPS6261507B2 (en) * 1979-03-05 1987-12-22 Mitsubishi Electric Corp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6261507B2 (en) * 1979-03-05 1987-12-22 Mitsubishi Electric Corp
JPS5646302A (en) * 1979-09-22 1981-04-27 Murata Mfg Co Ltd Strip line filter
JPS5924166U (en) * 1982-07-31 1984-02-15 株式会社同通 drug spray device
JPS6033604U (en) * 1983-08-16 1985-03-07 出光興産株式会社 Ultrasonic thickness gauge medium supply structure
JPS60153617A (en) * 1984-01-24 1985-08-13 Matsushita Electric Ind Co Ltd Tuner

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