JPH03254513A - Resonator - Google Patents
ResonatorInfo
- Publication number
- JPH03254513A JPH03254513A JP5460090A JP5460090A JPH03254513A JP H03254513 A JPH03254513 A JP H03254513A JP 5460090 A JP5460090 A JP 5460090A JP 5460090 A JP5460090 A JP 5460090A JP H03254513 A JPH03254513 A JP H03254513A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- resonator
- coil
- capacitor
- green sheet
- 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
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 23
- 238000004806 packaging method and process Methods 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 12
- 239000003989 dielectric material Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 2
- 235000003976 Ruta Nutrition 0.000 description 1
- 240000005746 Ruta graveolens Species 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000005806 ruta Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
Landscapes
- Parts Printed On Printed Circuit Boards (AREA)
- Coils Or Transformers For Communication (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Filters And Equalizers (AREA)
Abstract
Description
【発明の詳細な説明】
り呈上色剋里立立
本発明は、コンデンサとコイルとが並列接続された等価
回路をもつ共振器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a resonator having an equivalent circuit in which a capacitor and a coil are connected in parallel.
従来曵技拵
上記共振器の従来のものとしては、第４図に示す如く誘
電体基板２０の表裏面に、対向部Ａと非対向部Ｂが存在
する状態でＬ字形パターンの電極２１とコの字形パター
ンの電極２２が形成され、両電極２１．２２の上記非対
向部Ｂにある部分が、第５図に示すように誘電体基板２
０を貫通させて設けたスルーホール２０ａを介して接続
された構造となっている。かかる構造の共振器において
は、両電極２１．２２の対向部Ａを入出力用端子として
用いるので、対向部Ａで形成されるコンデンサＣと、非
対向部Ｂで形成されるコイルＬが並列接続された並列共
振回路となっている。なお、その等価回路を第６図に示
す。Conventional Drilling Techniques In the conventional resonator described above, an L-shaped pattern of electrodes 21 is connected to the dielectric substrate 20 with opposing portions A and non-opposing portions B on the front and back surfaces of the dielectric substrate 20, as shown in FIG. An electrode 22 having a square pattern is formed, and the portions of both electrodes 21 and 22 located in the non-opposed portions B are connected to the dielectric substrate 2 as shown in FIG.
0 through a through hole 20a. In a resonator with such a structure, the facing part A of both electrodes 21 and 22 is used as an input/output terminal, so the capacitor C formed by the facing part A and the coil L formed by the non-facing part B are connected in parallel. It is a parallel resonant circuit. The equivalent circuit is shown in FIG.
”しよ゛と る
しかしながら、上記共振器においては、上述したように
両電極２１．２２の対向部Ａを入出力用端子として用い
るため、表面実装を行うことができず、また、コンデン
サとコイルを誘電体基板上に並べた平面構造であるため
大型化するという問題点があった。However, in the above-mentioned resonator, since the facing part A of both electrodes 21 and 22 is used as the input/output terminal as described above, surface mounting cannot be performed, and the capacitor and coil cannot be mounted. Since it has a planar structure in which the elements are arranged on a dielectric substrate, it has the problem of increasing its size.
本発明はかかる課題を解決すべくなされたものであり、
表面実装化が可能であり、しかも小型な共振器を提供す
ることを目的とする。The present invention has been made to solve such problems,
The purpose of the present invention is to provide a small resonator that can be surface mounted.
！ ”′ −るた の
本発明は、コンデンサとコイルとが並列接続された等価
回路をもつ共振器において、誘電体層を介して対向する
電極対からなるコンデンサ部と、平面状の電極からなる
コイル部とが、その間に中間層を介して積層されている
と共に、この積層体の１つの側面にコンデンサ部の一方
の電極とコイル部の電極の一端とが引出され、前記側面
とは異なる側面にコンデンサ部の他方の電極とコイル部
の電極の他端とが引出され、更に前記２つの側面に電極
引出部と電気的に接続された端子電極が形成されている
ことを特徴とする。! ``' - Ruta's present invention is a resonator having an equivalent circuit in which a capacitor and a coil are connected in parallel. are laminated with an intermediate layer between them, and one electrode of the capacitor part and one end of the electrode of the coil part are drawn out to one side of the laminated body, and one end of the electrode of the coil part is drawn out to one side of the laminated body, and one end of the electrode of the coil part is drawn out to one side of the laminate, and a The other electrode of the capacitor part and the other end of the electrode of the coil part are drawn out, and terminal electrodes electrically connected to the electrode drawn out part are formed on the two side surfaces.
化−−−里
本発明にあっては、積層体の側面に形成した端子電極に
、コンデンサ部及びコイル部の各電極が所定の接続状態
で接続されているので、端子電極は外部接続用端子とし
て用いることができると共に、この端子部分からコイル
部に繋がっている部分までの箇所がコイルとしても機能
し、このコイルとして機能する箇所と積層したコイル部
とからなる実質的なコイルにコンデンサ部が並列接続さ
れた並列共振回路となる。In the present invention, each electrode of the capacitor part and the coil part is connected to the terminal electrode formed on the side surface of the laminate in a predetermined connection state, so that the terminal electrode is used as an external connection terminal. In addition, the part from this terminal part to the part connected to the coil part also functions as a coil, and the capacitor part is added to the substantial coil consisting of the part that functions as a coil and the laminated coil part. This becomes a parallel resonant circuit connected in parallel.
また、コンデンサ部とコイル部とは積層体の厚み方向に
設けられているので立体構造となっている。Further, since the capacitor section and the coil section are provided in the thickness direction of the laminate, they have a three-dimensional structure.
実−４Ｌ二桝
第１図は本発明に係る共振器の一実施例を示す分解斜視
図、第２図はその共振器の一体化された状態を示す断面
図、第３図はその共振器の側面を示す外観図である。こ
の共振器は、第２図に示すように最下層の誘電体等から
なる保護Ｎ１の上に、誘電体Ｎ３及びこれを挟んでその
両表面３ａ、３ｂに対向する状態に設けた電極２，４か
らなる層状のコンデンサ部５が配され、更にその上には
、誘電体等からなる中間Ｎ６と、平面状の電極７からな
るコイル部と、誘電体等からなるＮ８と、膜状のシール
ド用電極９と、誘電体等からなる保護１１０がこの順に
配設された積層構造となっており、この積層体１１の上
・下面１１ａ、ｌｌｂの端部と、これに繋がる側面の２
箇所１１ｃ、１１ｄにわたって断面コの字状の端子電極
１２．１３が形成されている。なお、上記すべての電極
は、Ｃｕ、Ａｇ等の導電材料を用いている。Fig. 1 is an exploded perspective view showing one embodiment of the resonator according to the present invention, Fig. 2 is a sectional view showing the integrated state of the resonator, and Fig. 3 is the resonator. FIG. As shown in FIG. 2, this resonator consists of a dielectric N3 and an electrode 2 provided on both surfaces 3a and 3b of the dielectric N3 on both sides of the protection N1, which is a lowermost layer of dielectric material, etc., as shown in FIG. A layered capacitor section 5 consisting of 4 is disposed, and further above it, an intermediate N6 consisting of a dielectric etc., a coil section consisting of a planar electrode 7, N8 consisting of a dielectric etc., and a membrane shield are disposed. It has a laminated structure in which the protective electrode 9 and the protection 110 made of a dielectric material etc. are arranged in this order, and the upper and lower surfaces 11a of this laminated body 11, the ends of the llb, and the two side surfaces connected thereto.
Terminal electrodes 12 and 13 having a U-shaped cross section are formed across the locations 11c and 11d. Note that all of the above electrodes use conductive materials such as Cu and Ag.
前記コンデンサ部５を構成し対向する１対の電極２．４
は、第１図に示すように、それぞれ端子電極１２．１３
の片方と接続させるべく側面１１Ｃ，１１ｄに引き出し
た電極引出部２ａ、４ａを一つずつ有し、一方（下側）
の電極２はその電極引出部２ａを介して図面左側の端子
電極１２に、他方（上側）の電極４は電極引出部４ａを
介して図面右側の端子電極１３に接続されており、画電
極２．４間は誘電体層３が介装されているため静電容量
をもつ。A pair of electrodes 2.4 forming the capacitor section 5 and facing each other
are the terminal electrodes 12 and 13, respectively, as shown in FIG.
It has one electrode lead-out part 2a, 4a drawn out on the side surfaces 11C, 11d to be connected to one side (lower side).
The electrode 2 is connected to the terminal electrode 12 on the left side of the drawing via its electrode extension 2a, and the other (upper) electrode 4 is connected to the terminal electrode 13 on the right side of the drawing via the electrode extension 4a. .4 has capacitance because the dielectric layer 3 is interposed therebetween.
前記コイル部を構成する平面状の電極７は、両側の端子
電極１２．１３に接続させるべく側面１１ｃ、１１ｄに
引き出した２つの電極引出部７ａ。The planar electrode 7 constituting the coil portion has two electrode extension portions 7a drawn out to side surfaces 11c and 11d to be connected to terminal electrodes 12 and 13 on both sides.
７ｂを両端に有し、一方の電極引出部７ａを左側の端子
電極１２に、他方の電極引出部７ｂを右側の端子電極１
３に接続させである。7b at both ends, one electrode extension part 7a is connected to the left terminal electrode 12, and the other electrode extension part 7b is connected to the right terminal electrode 1.
Connect it to 3.
かかる構成の共振器は、焼成後のものであり、例えば第
１図に示すようにして作成することができる。即ち、未
焼成の誘電体からなる多数のグリーンシートを用意し、
そのうちの４枚のグリーンシートの片面に、上述した電
極引出部２ａを有する電極２と、電極引出部４ａを有す
る電極４と、電極引出部７ａ、７ｂを有する電極７と、
シールド用電極８とを、印刷等にて形成する。なお、シ
ールド用電極８は端子電極１２．１３と接触しないよう
に、それを設けるグリーンシートよりも小さく形成して
おく、また、電極２，４，７．８については、金属シー
トを用いてもよい。A resonator having such a configuration is after firing, and can be produced, for example, as shown in FIG. 1. That is, a large number of green sheets made of unfired dielectric material are prepared,
On one side of the four green sheets, an electrode 2 having the above-mentioned electrode extension part 2a, an electrode 4 having an electrode extension part 4a, and an electrode 7 having electrode extension parts 7a and 7b,
The shielding electrode 8 is formed by printing or the like. In addition, the shielding electrode 8 is formed smaller than the green sheet on which it is provided so that it does not come into contact with the terminal electrode 12.13.Also, as for the electrodes 2, 4, and 7.8, metal sheets may be used. good.
その後、各電極形成面を上側にした状態で、電極２．４
が形成された２つのグリーンシートを、電極２を下側に
し、かつ電極引出部２ａ、４ａを反対側にして重ね、そ
の上に、電極を形成していない所望枚数のグリーンシー
トと、電極７が形成されたグリーンシートと、シールド
用電極９が形威されたグリーンシートと、電極を形成し
ていないグリーンシート１枚とをこの順に積層して圧着
し、圧着された積層体の側面に前記端子電極１２゜１３
を印刷等にて形成し、しかる後、この状態のものを焼成
する。なお、端子電極１２．１３は積層体の上下面にも
一部形成されているが、この部分は印刷等を行う際にそ
の処理上やむを得ず形成されたものであり、形成を行わ
なくても構わない。After that, with each electrode forming surface facing upward, electrode 2.4
are stacked with the electrode 2 on the bottom and the electrode extensions 2a and 4a on the opposite side, and on top of that, a desired number of green sheets on which no electrode is formed and the electrode 7. A green sheet on which a shielding electrode 9 is formed, a green sheet on which a shielding electrode 9 is formed, and one green sheet on which no electrode is formed are laminated and crimped in this order. Terminal electrode 12゜13
is formed by printing or the like, and then this state is fired. Note that the terminal electrodes 12 and 13 are also partially formed on the upper and lower surfaces of the laminate, but these portions are unavoidably formed during printing, etc., and may not be formed. do not have.
上記焼成により、最下部にあるグリーンシー）は保護層
ｌを形成し、対向する電極２．４間にあるグリーンシー
トは誘電体層３を、電極４とコイル部を構成する電極７
との間のグリーンシートは中間層６を、電極７とシール
ド用電極９との間のグリーンシートは層８を、更にシー
ルド用電極９の上側のグリーンシートは保護層１０を形
成する。By the above firing, the green sheet at the bottom forms a protective layer l, the green sheet between the opposing electrodes 2 and 4 forms a dielectric layer 3, and the electrode 4 and the electrode 7 forming the coil part form a dielectric layer 3.
The green sheet between the electrode 7 and the shielding electrode 9 forms the layer 8, and the green sheet above the shielding electrode 9 forms the protective layer 10.
また、グリーンシート同士が接合する部分は一体化した
ものとなっている。Furthermore, the parts where the green sheets join are integrated.
このようにして作成された共振器は、第２図に示す断面
構造をなし、また、側面は第３図に示すようになる。し
たがって、この共振器は、シールド用電極９を上側にし
て図示しない配線基板の上にセットし、端子電極１２．
１３を配ｋＩＡ基板に形成しである配線に半田付けする
と取付けでき、表面実装化が可能である。The resonator thus produced has a cross-sectional structure as shown in FIG. 2, and a side surface as shown in FIG. 3. Therefore, this resonator is set on a wiring board (not shown) with the shielding electrode 9 facing upward, and the terminal electrode 12.
13 is formed on a distribution board and soldered to a certain wiring, it can be attached, and surface mounting is possible.
また、上述のように実装された状態では、端子電極１２
．１３は外部接続用端子として働くと共に、その端子部
分から電極７の電極引出部７ａ。Moreover, in the state mounted as described above, the terminal electrode 12
．． Reference numeral 13 denotes an electrode lead-out portion 7a of the electrode 7 which functions as an external connection terminal and extends from the terminal portion.
７ｂが接続されている部分までがコイルとして機能する
。このため、実質的なコイルは端子電極１２．１３の一
部と、電極７からなるコイル部にて構成される。一方、
対向する電極２．４の間では、誘電体１ｉ３が存在する
ので静電容量が生してコンデンサとして機能し、このコ
ンデンサが上述した実質的なコイルと並列状態で端子間
に存在する。The portion up to where 7b is connected functions as a coil. Therefore, the actual coil is composed of a portion of the terminal electrodes 12 and 13 and a coil portion consisting of the electrode 7. on the other hand,
Since the dielectric 1i3 is present between the opposing electrodes 2.4, a capacitance is generated and functions as a capacitor, and this capacitor exists between the terminals in parallel with the above-mentioned substantial coil.
よって、この共振器は並列共振回路を構成する。Therefore, this resonator constitutes a parallel resonant circuit.
なお、コンデンサ部５とコイル部７との間に介装した中
間層６の厚みについては、両電気素子間で電磁的な影響
が及びにくい程度とするのが好ましく、例えば−船釣な
サイズの共振器においては約１．０ＩＩｌｆ１１〜２．
０ｍ１ｎとするのがよい。中間Ｍ６を除く他の層１．３
，８．１０については、適当な厚みとなるようにグリー
ンシートの枚数を定めればよく、また、コンデンサ部５
の誘電体層３を除く他の層１，６，８．１０の材質につ
いては、誘電体に限らず、絶縁体を用いてもよい。また
、共振周波数の調整は、最下層たる保護層１を破り電極
２をトリ累ソゲすることにより行い得、所望の値とする
ことが可能である。The thickness of the intermediate layer 6 interposed between the capacitor section 5 and the coil section 7 is preferably such that electromagnetic influence does not easily occur between the two electric elements. In the resonator, approximately 1.0IIlf11-2.
It is preferable to set it to 0m1n. Other layers except middle M6 1.3
, 8.10, the number of green sheets may be determined to have an appropriate thickness, and the capacitor portion 5
The materials for the other layers 1, 6, 8, and 10 other than the dielectric layer 3 are not limited to dielectrics, and may be insulators. Further, the resonant frequency can be adjusted to a desired value by breaking the protective layer 1, which is the lowermost layer, and removing the electrode 2.
なお、上記実施例では端子電極を積層体の対向する側面
（上下面を含む）に形成しているが、本発明はこれに限
らず、隣合う２つの側面に形成して、これらにコンデン
サ部５とコイル部７の電極を接続させた状態になしても
よい。In the above embodiment, the terminal electrodes are formed on the opposing side surfaces (including the upper and lower surfaces) of the laminate, but the present invention is not limited to this, and the terminal electrodes are formed on two adjacent side surfaces, and the capacitor portion is formed on these. 5 and the electrode of the coil portion 7 may be connected to each other.
また、上記実施例ではシールド用電極９を具備する構成
としているが、本発明はこの電極９を省略した構成であ
ってもよい。Further, although the above embodiment has a configuration including the shielding electrode 9, the present invention may have a configuration in which this electrode 9 is omitted.
発里皇並来
以上詳述した如く本発明による場合には、積層体の厚み
方向にあるコンデンサ部とコイル部が端子電極に接続さ
れた立体構造となっている並列共振回路を構成させるこ
とができ、小型化を図ることが可能であり、また、積層
体の側面に形成した端子電極を外部接続用端子として用
いることができるので、表面実装化も可能であるという
優れた効果を奏する。As detailed above, according to the present invention, it is possible to configure a parallel resonant circuit having a three-dimensional structure in which the capacitor part and the coil part in the thickness direction of the laminate are connected to terminal electrodes. It is possible to reduce the size of the laminate, and since the terminal electrodes formed on the side surfaces of the laminate can be used as external connection terminals, surface mounting is also possible.
第１図は本発明に係る共振器の一実施例を示す分解斜視
図、第２図はその共振器の一体化された状態を示す断面
図、第３図はその共振器の側面を示す外観図、第４図は
従来の共振器を示す平面図、第５図は第４図のｖ−Ｖ線
による断面図、第６図はその共振器の等価回路図である
。
５・・・コンデンサ部
２．４・・・電極
２ａ、４ａ・・・電極引出部
６・・・中間層
７・・・電極（コイル部）
７ａ、７ｂ・・・電極引出部
１１・・・積層体
１
１
ｄ・・・側面
１２゜
■
３・・・端子電極。Fig. 1 is an exploded perspective view showing an embodiment of the resonator according to the present invention, Fig. 2 is a sectional view showing the integrated state of the resonator, and Fig. 3 is an external appearance showing the side surface of the resonator. 4 is a plan view showing a conventional resonator, FIG. 5 is a sectional view taken along line v--V in FIG. 4, and FIG. 6 is an equivalent circuit diagram of the resonator. 5... Capacitor part 2.4... Electrode 2a, 4a... Electrode extension part 6... Intermediate layer 7... Electrode (coil part) 7a, 7b... Electrode extension part 11... Laminated body 1 1 d... Side surface 12° ■ 3... Terminal electrode.
Claims (1)
をもつ共振器において、 誘電体層を介して対向する電極対からなるコンデンサ部
と、平面状の電極からなるコイル部とが、その間に中間
層を介して積層されていると共に、この積層体の１つの
側面にコンデンサ部の一方の電極とコイル部の電極の一
端とが引出され、前記側面とは異なる側面にコンデンサ
部の他方の電極とコイル部の電極の他端とが引出され、
更に前記２つの側面に電極引出部と電気的に接続された
端子電極が形成されていることを特徴とする共振器。(1) In a resonator with an equivalent circuit in which a capacitor and a coil are connected in parallel, a capacitor section consisting of a pair of electrodes facing each other with a dielectric layer interposed therebetween, and a coil section consisting of a planar electrode are placed in between. One electrode of the capacitor part and one end of the electrode of the coil part are drawn out on one side of this laminate, and the other electrode of the capacitor part is drawn out on a different side from the above-mentioned side. The other end of the electrode of the coil part is pulled out,
The resonator further comprises terminal electrodes electrically connected to the electrode lead-out portions formed on the two side surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2054600A JP2844582B2 (en) | 1990-03-05 | 1990-03-05 | Resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2054600A JP2844582B2 (en) | 1990-03-05 | 1990-03-05 | Resonator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03254513A true JPH03254513A (en) | 1991-11-13 |
| JP2844582B2 JP2844582B2 (en) | 1999-01-06 |
Family
ID=12975224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2054600A Expired - Lifetime JP2844582B2 (en) | 1990-03-05 | 1990-03-05 | Resonator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2844582B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5929727A (en) * | 1996-10-11 | 1999-07-27 | Matsushita Electric Industrial Co., Ltd. | Dielectric resonator, method for manufacturing the same, filter and communication apparatus |
| WO2014181681A1 (en) * | 2013-05-09 | 2014-11-13 | 株式会社村田製作所 | Lc parallel resonance element and band-stop filter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633813A (en) * | 1979-08-29 | 1981-04-04 | Tdk Electronics Co Ltd | Laminar composite part |
| JPS58145114A (en) * | 1982-01-25 | 1983-08-29 | ティーディーケイ株式会社 | Lc composite part |
-
1990
- 1990-03-05 JP JP2054600A patent/JP2844582B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633813A (en) * | 1979-08-29 | 1981-04-04 | Tdk Electronics Co Ltd | Laminar composite part |
| JPS58145114A (en) * | 1982-01-25 | 1983-08-29 | ティーディーケイ株式会社 | Lc composite part |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5929727A (en) * | 1996-10-11 | 1999-07-27 | Matsushita Electric Industrial Co., Ltd. | Dielectric resonator, method for manufacturing the same, filter and communication apparatus |
| WO2014181681A1 (en) * | 2013-05-09 | 2014-11-13 | 株式会社村田製作所 | Lc parallel resonance element and band-stop filter |
| US9935601B2 (en) | 2013-05-09 | 2018-04-03 | Murata Manufacturing Co., Ltd. | LC parallel resonant element |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2844582B2 (en) | 1999-01-06 |
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