JPH0758505A - Dielectric filter component, manufacturing method thereof, and dielectric filter - Google Patents
Dielectric filter component, manufacturing method thereof, and dielectric filterInfo
- Publication number
- JPH0758505A JPH0758505A JP22509793A JP22509793A JPH0758505A JP H0758505 A JPH0758505 A JP H0758505A JP 22509793 A JP22509793 A JP 22509793A JP 22509793 A JP22509793 A JP 22509793A JP H0758505 A JPH0758505 A JP H0758505A
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- Prior art keywords
- dielectric
- dielectric filter
- filter component
- insulating material
- resonators
- Prior art date
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Abstract
(57)【要約】
【目的】 誘電体共振器間の寸法精度、並びに誘電体共
振器と入出力ポストとの間の寸法精度を充分高くでき、
且つ容易に組み立てうるため量産性に優れ、小形化にも
十分対応できるようにする。
【構成】 誘電体フィルタ部品３０は、複数の誘電体共
振器３２を所定の間隔をおいて配列し、それらを低誘電
率で且つ低誘電体損失の絶縁材料３４によりモールド一
体化してなる。絶縁材料としては樹脂やガラスを用い
る。発泡性樹脂なども好適である。誘電体フィルタ部品
は、複数本の誘電体棒を所定の間隔をおいて並置し、絶
縁材料でモールド一体化した後、必要な厚さで切断する
ことにより容易に量産できる。このような誘電体フィル
タ部品を、入出力用アンテナポスト又は導波管を有する
金属製の筐体内に収め固定することで誘電体フィルタを
製造する。
(57) [Summary] [Purpose] The dimensional accuracy between dielectric resonators and the dimensional accuracy between dielectric resonators and input / output posts can be made sufficiently high.
Also, since it can be easily assembled, it has excellent mass productivity and can be made compact enough. The dielectric filter component 30 is formed by arranging a plurality of dielectric resonators 32 at a predetermined interval and molding them with an insulating material 34 having a low dielectric constant and a low dielectric loss. Resin or glass is used as the insulating material. Foaming resins and the like are also suitable. A dielectric filter component can be easily mass-produced by arranging a plurality of dielectric rods side by side at a predetermined interval, molding-molding them with an insulating material, and then cutting them with a required thickness. A dielectric filter is manufactured by housing and fixing such a dielectric filter component in a metal housing having an input / output antenna post or a waveguide.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、両端に入出力ポスト又
は導波管を有する金属製の筐体内に、複数個の誘電体共
振器を並設収納した誘電体フィルタに関するものであ
る。更に詳しく述べると本発明は、複数の誘電体共振器
を絶縁材料でモールド一体化した誘電体フィルタ部品、
その製造方法、及びその誘電体フィルタ部品を用いた誘
電体フィルタに関するものである。この技術は、例えば
マイクロ波帯あるいはミリ波帯の通信システムに有用で
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dielectric filter having a plurality of dielectric resonators arranged side by side in a metal housing having input / output posts or waveguides at both ends. More specifically, the present invention provides a dielectric filter component in which a plurality of dielectric resonators are molded and integrated with an insulating material,
The present invention relates to a manufacturing method thereof and a dielectric filter using the dielectric filter component. This technique is useful, for example, in a microwave band or millimeter wave band communication system.
【０００２】[0002]
【従来の技術】誘電体フィルタには様々な形式のものが
あるが、その一つにディスクタイプと呼ばれる誘電体フ
ィルタがある。これは導波管モードにおいて遮断域とな
るような直方体状の空洞を有する金属製筐体内に、複数
のディスク状の誘電体共振器を筐体長手方向に配置した
構造である。2. Description of the Related Art There are various types of dielectric filters, one of which is a disk type dielectric filter. This is a structure in which a plurality of disk-shaped dielectric resonators are arranged in the longitudinal direction of a housing in a metal housing having a rectangular parallelepiped cavity that serves as a cutoff region in the waveguide mode.
【０００３】その一例を図１４及び図１５に示す。金属
製の筐体はケース本体１０と蓋体１２との組み合わせか
らなる。ケース本体１０は中央に細長状の凹部１４を有
し、両端部に入出力コネクタ１６が取り付けてある。ケ
ース本体１０の凹部１４の両端内側には入出力ポスト１
８を幅方向に設け、その一端は入出力コネクタ１６の中
心導体に半田付けなどにより接続し、他端はケース本体
１０の内側壁に接続する。ケース本体１０の凹部１４内
には３個のディスク状誘電体共振器２０を所定の間隔を
おいて配列し、それぞれ電気絶縁性の支持台２２上に接
着する。またケース本体１０に被せる蓋体１２には各誘
電体共振器２０に対向するように、それぞれ周波数調整
ネジ２４を進退可能に取り付け、ロックナット２６によ
って所定の位置で固定できるようにする。この周波数調
整ネジ２４の進退によって、その先端面が誘電体共振器
に対して近づいたり遠ざかったりし、それによって主モ
ード共振周波数ｆ0 を調整する。An example thereof is shown in FIGS. 14 and 15. The metal housing is made up of a combination of the case body 10 and the lid 12. The case body 10 has an elongated recess 14 at the center, and input / output connectors 16 are attached to both ends. The input / output posts 1 are provided inside both ends of the recess 14 of the case body 10.
8 is provided in the width direction, one end of which is connected to the center conductor of the input / output connector 16 by soldering or the like, and the other end is connected to the inner side wall of the case body 10. Three disk-shaped dielectric resonators 20 are arranged in the recess 14 of the case main body 10 at predetermined intervals, and are bonded on an electrically insulating support 22. Further, a frequency adjusting screw 24 is attached to the lid 12 that covers the case main body 10 so as to face each dielectric resonator 20, and the frequency adjusting screw 24 can be fixed at a predetermined position by a lock nut 26. As the frequency adjusting screw 24 moves back and forth, its tip end surface approaches or moves away from the dielectric resonator, thereby adjusting the main mode resonance frequency f 0 .
【０００４】この誘電体フィルタでは、低損失の強誘電
体をＴＥ01δモードの共振器として用いており、各誘電
体共振器２０の間隔はフィルタ合成に必要な所定の結合
度が得られるように高い精度で設定する。In this dielectric filter, a low-loss ferroelectric material is used as a TE 01 δ mode resonator, and the distance between the dielectric resonators 20 is set so that a predetermined degree of coupling required for filter synthesis can be obtained. Set with high accuracy.
【０００５】[0005]
【発明が解決しようとする課題】この種の誘電体フィル
タでは、各誘電体共振器間の寸法、及び誘電体共振器と
入出力ポスト間の寸法は、非常に厳しい精度が要求され
る。そのため上記のように各誘電体共振器２０を１個ず
つ支持台２２上に接着して組み立てる構造では、量産化
は極めて困難であり、製造コストも高くなる。特に最近
の小形化、高周波化の要請により、間隔ずれの許容量が
小さくなる傾向は顕著となっており、それに対応できる
構造の開発が強く求められている。In this type of dielectric filter, the dimension between the dielectric resonators and the dimension between the dielectric resonator and the input / output post are required to have extremely strict accuracy. Therefore, with the structure in which each dielectric resonator 20 is bonded and assembled on the support base 22 one by one as described above, mass production is extremely difficult, and the manufacturing cost becomes high. In particular, due to recent demands for miniaturization and higher frequency, there is a remarkable tendency that the permissible amount of gap deviation becomes small, and development of a structure capable of coping with this is strongly required.
【０００６】本発明の目的は、誘電体共振器間の寸法精
度、並びに誘電体共振器と入出力ポストとの間の寸法精
度を充分高くでき、且つ容易に組み立てうるため量産性
に優れ、小形化にも十分対応できる誘電体フィルタ部
品、その製造方法、及びそれを用いた誘電体フィルタを
提供することである。An object of the present invention is that the dimensional accuracy between the dielectric resonators and the dimensional accuracy between the dielectric resonator and the input / output post can be made sufficiently high, and because they can be easily assembled, they are excellent in mass productivity and small in size. (EN) Provided are a dielectric filter component that can sufficiently cope with the demands, a manufacturing method thereof, and a dielectric filter using the same.
【０００７】[0007]
【課題を解決するための手段】本発明は、複数の誘電体
共振器を所定の間隔をおいて配列し、それらを低誘電率
で且つ低誘電体損失の絶縁材料によりモールド一体化し
てなる誘電体フィルタ部品である。誘電体共振器同士の
間の位置のモールド絶縁材料に、結合調整用部材を挿入
するための逃げ部を形成してもよい。誘電体共振器は、
マイクロ波帯やミリ波帯などで使用する高誘電率材料の
ディスク状あるいは筒状などの誘電体セラミックスであ
る。低誘電率で低誘電体損失を呈する絶縁材料として
は、樹脂やガラスのような材料を用いる。例えば発泡性
樹脂などが好適である。例えばマイクロ波帯における誘
電体共振器の誘電率は数十以上であることから、絶縁材
料の誘電率としては十数以下が好ましい。このような誘
電体フィルタ部品は、複数本の誘電体棒を所定の間隔を
おいて並置し、それらを絶縁材料を用いてモールド一体
化した後、前記誘電体棒の中心軸に対して垂直な方向
に、誘電体共振器として必要な厚さに対応する寸法で切
断することによって容易に量産できる。According to the present invention, a plurality of dielectric resonators are arranged at a predetermined interval, and they are molded and integrated with an insulating material having a low dielectric constant and a low dielectric loss. It is a body filter component. An escape portion for inserting the coupling adjusting member may be formed in the mold insulating material at a position between the dielectric resonators. The dielectric resonator is
It is a disk-shaped or cylindrical dielectric ceramic of a high dielectric constant material used in the microwave band and millimeter wave band. A material such as resin or glass is used as the insulating material having a low dielectric constant and a low dielectric loss. For example, a foamable resin or the like is suitable. For example, since the dielectric constant of the dielectric resonator in the microwave band is several tens or more, the dielectric constant of the insulating material is preferably ten or less. In such a dielectric filter component, a plurality of dielectric rods are juxtaposed at a predetermined interval, and they are molded and integrated by using an insulating material, and then they are perpendicular to the central axis of the dielectric rod. In the direction, it can be easily mass-produced by cutting in a dimension corresponding to the thickness required for the dielectric resonator.
【０００８】また本発明は、このような誘電体フィルタ
部品を、入出力用アンテナポスト又は入出力用導波管を
有する金属製の筐体内に収めて固定した誘電体フィルタ
である。例えば、筐体を構成するケース本体の内側壁に
段差部を設け、その段差上に誘電体フィルタ部品を載
せ、上方のクッション材を介して蓋体を押し付けて固定
する構造、あるいは接着剤を用いて固定する構造などが
ある。The present invention is also a dielectric filter in which such a dielectric filter component is housed and fixed in a metal casing having an input / output antenna post or an input / output waveguide. For example, a structure is used in which a step is provided on the inner wall of the case body that forms the housing, the dielectric filter component is placed on the step, and the lid is pressed and fixed via the upper cushion material, or an adhesive is used. There is a structure to fix it.
【０００９】[0009]
【作用】誘電体共振器を金型中に配列しモールド一体化
することで、各誘電体共振器間の寸法を十分精度よい状
態でモジュール化することが可能である。この一体化し
た部品は、そのままで簡単に筐体内に組み込むことがで
きる。また入出力がアンテナポストの場合、誘電体共振
器と端面との寸法を高精度で設定しておくことにより、
入出力ポストに突き当てるだけで正確な位置決めが行え
る。By arranging the dielectric resonators in the mold and integrating them with the mold, it is possible to modularize the dimensions between the dielectric resonators with sufficient accuracy. This integrated component can be easily incorporated into the housing as it is. If the input and output are antenna posts, by setting the dimensions of the dielectric resonator and the end face with high accuracy,
Accurate positioning can be achieved simply by abutting the I / O posts.
【００１０】[0010]
【実施例】図１は本発明に係る誘電体フィルタ部品の一
実施例を示す斜視図である。これは３段フィルタ用の部
品の例である。この誘電体フィルタ部品３０は、３個の
誘電体共振器３２を所定の間隔をおいて配列し、それら
を絶縁材料３４で直方体状にモールド一体化した構造で
ある。各誘電体共振器３２は、マイクロ波帯やミリ波帯
で使用する高誘電率材料のディスク状の誘電体セラミッ
クス（焼結品）である。絶縁材料３４としては、樹脂や
ガラスのような低誘電率で低誘電体損失の材料を用い
る。例えば発泡スチロールのような発泡性樹脂は、空気
が多量に含まれており、そのため低誘電率であるので好
適である。この誘電体フィルタ部品３０においては、一
方の誘電体共振器３２と絶縁材料３４の一端面（例えば
端面３４ａ）との距離も所定の長さとなるように設定す
る。1 is a perspective view showing an embodiment of a dielectric filter component according to the present invention. This is an example of a part for a three-stage filter. This dielectric filter component 30 has a structure in which three dielectric resonators 32 are arranged at a predetermined interval, and these are integrally molded in a rectangular parallelepiped shape with an insulating material 34. Each dielectric resonator 32 is a disk-shaped dielectric ceramic (sintered product) of a high dielectric constant material used in a microwave band or a millimeter wave band. As the insulating material 34, a material having a low dielectric constant and low dielectric loss such as resin or glass is used. For example, a foamable resin such as styrene foam is suitable because it contains a large amount of air and thus has a low dielectric constant. In this dielectric filter component 30, the distance between one dielectric resonator 32 and one end surface (eg, the end surface 34a) of the insulating material 34 is also set to be a predetermined length.
【００１１】このような誘電体フィルタ部品は、例えば
インサートモールド法によって、各誘電体共振器を金型
内の所定の位置に挿入配置し、絶縁材料を射出成形する
ことにより精度良く製作することができる。また図２に
示すように複数本（ここでは３本）の誘電体棒４２を所
定の間隔をおいて並置し、それらを絶縁材料４４を用い
てモールド一体化した後、前記誘電体棒４２の中心軸に
対して垂直な方向に、誘電体共振器として必要な厚さに
対応する寸法（Ｘ1 −Ｘ1 ，Ｘ2 −Ｘ2 ，Ｘ3−Ｘ3 ，
…の位置）で切断することにより、容易に同じ配列の誘
電体フィルタ部品が量産可能である。Such a dielectric filter component can be accurately manufactured by inserting each dielectric resonator into a predetermined position in a mold by, for example, an insert molding method and injection-molding an insulating material. it can. Further, as shown in FIG. 2, a plurality of (here, three) dielectric rods 42 are juxtaposed at a predetermined interval, and they are molded and integrated by using an insulating material 44. In the direction perpendicular to the central axis, the dimensions (X 1 −X 1 , X 2 −X 2 , X 3 −X 3 , X 3 −X 3 ,
Dielectric filter parts having the same arrangement can be easily mass-produced by cutting at the position (...).
【００１２】図３は本発明に係る誘電体フィルタ部品の
他の実施例を示している。空気は、樹脂やガラス材料よ
りも誘電率が低い。そのためこの誘電体フィルタ部品３
０では、誘電体共振器３２を絶縁材料３４でモールドす
る際に、各誘電体共振器３２の間の位置に穴３６を設け
て、絶縁材料の存在しない部分（空気）を形成すること
により、誘電体共振器３２を保持しつつ、誘電体共振器
３２間のトータルとしての誘電率を下げている。穴３６
は、ここでは角型形状で、間に１個ずつ形成している
が、その形状や大きさ、個数、形成位置などは適宜変更
してよい。FIG. 3 shows another embodiment of the dielectric filter component according to the present invention. Air has a lower dielectric constant than resins and glass materials. Therefore, this dielectric filter component 3
In 0, when the dielectric resonator 32 is molded with the insulating material 34, the holes 36 are provided at positions between the dielectric resonators 32 to form a portion (air) where the insulating material does not exist. While holding the dielectric resonator 32, the total permittivity between the dielectric resonators 32 is lowered. Hole 36
In this case, although each has a square shape and one is formed between them, the shape, size, number, forming position, etc. may be appropriately changed.
【００１３】図４は本発明に係る誘電体フィルタの一例
を示す断面図である。ここでは例えば図１に示すような
誘電体フィルタ部品３０を使用し、入出力用アンテナポ
ストを有する金属製の筐体内に収め固定した構造であ
る。金属製筐体は、従来同様、ケース本体１０と蓋体１
２との組み合わせからなる。ケース本体１０は中央に細
長状の凹部１４を有し、両端部に入出力コネクタ１６が
取り付けてある。ケース本体１０の凹部１４の両端内側
には入出力ポスト１８を幅方向に設け、その一端は入出
力コネクタ１６の中心導体に半田付け等により接続し、
他端はケース本体１０の内側壁に接続する。ケース本体
１０の凹部１４内には電気絶縁性の支持台３８を設け、
その上に前記の誘電体フィルタ部品３０を載置し接着に
より固定する。支持台３８は、図示のように誘電体フィ
ルタ部品３０の下面ほぼ全体を支持する構造でもよい
し、２箇所で部分的に支持する構造でもよい。FIG. 4 is a sectional view showing an example of the dielectric filter according to the present invention. Here, for example, a dielectric filter component 30 as shown in FIG. 1 is used, and the dielectric filter component 30 is housed and fixed in a metal casing having an input / output antenna post. As in the conventional case, the metal casing has a case body 10 and a lid body 1.
Combining with 2. The case body 10 has an elongated recess 14 at the center, and input / output connectors 16 are attached to both ends. Input / output posts 18 are provided in the width direction inside both ends of the recess 14 of the case body 10, and one end thereof is connected to the center conductor of the input / output connector 16 by soldering or the like.
The other end is connected to the inner wall of the case body 10. An electrically insulating support base 38 is provided in the recess 14 of the case body 10,
The dielectric filter component 30 is placed on it and fixed by adhesion. The support base 38 may have a structure for supporting substantially the entire lower surface of the dielectric filter component 30 as shown in the figure, or may have a structure for partially supporting it at two locations.
【００１４】この誘電体フィルタ部品３０では、一方の
誘電体共振器（ここでは図４の右側の誘電体共振器）と
モールド絶縁材料３４の一端面３４ａの距離を、予め所
定の長さに設定してあるので、その一端面３４ａを一方
の入出力ポスト１８に当接することによって、誘電体共
振器３２と入出力ポスト１８との正確な位置決めを容易
に行える。その他の構成は、前記従来技術と同様であ
り、各誘電体共振器３２に対向するように、それぞれ周
波数調整ネジ２４を進退可能に取り付けて、ロックナッ
ト２６によって所定の位置で固定できるようにし、周波
数調整が可能なように構成している。In this dielectric filter component 30, the distance between one dielectric resonator (here, the dielectric resonator on the right side in FIG. 4) and the one end face 34a of the mold insulating material 34 is set to a predetermined length in advance. Therefore, by abutting the one end face 34a thereof on one of the input / output posts 18, the dielectric resonator 32 and the input / output post 18 can be easily positioned accurately. Other configurations are the same as those of the above-mentioned prior art, and the frequency adjusting screws 24 are attached so as to be able to move forward and backward so as to face the respective dielectric resonators 32, so that they can be fixed at predetermined positions by the lock nuts 26. The frequency is adjustable.
【００１５】図５は誘電体フィルタの更に他の実施例の
断面を示している。Ａの場合、ケース本体１０の両側内
壁に段差部１０ａを形成し、その段差上に誘電体フィル
タ部品３０を載置し、該誘電体フィルタ部品３０の上面
にクッション材５０を置き、蓋体１２を被せてクッショ
ン材５０の弾力性を利用して押さえ付けて固定する構造
である。Ｂの場合、蓋体１２に脚部１２ａを一体的に設
けておき、その下面にクッション材５１を貼り付けてあ
る。ケース本体１０の両側内壁の段差部１０ａ上に誘電
体フィルタ部品３０を載置し、蓋体１２を被せてクッシ
ョン材５１の弾力性を利用して押さえ付けて固定する構
造である。勿論、段差部上に誘電体フィルタ部品を載置
して直接接着剤で固定する構造でもよい。FIG. 5 shows a cross section of still another embodiment of the dielectric filter. In the case of A, the step portions 10a are formed on both inner walls of the case body 10, the dielectric filter component 30 is placed on the step, the cushion material 50 is placed on the upper surface of the dielectric filter component 30, and the lid 12 is formed. It is a structure in which the cushion material 50 is covered and covered and pressed down by utilizing the elasticity of the cushion material 50. In the case of B, the leg 12a is integrally provided on the lid 12, and the cushion material 51 is attached to the lower surface thereof. The structure is such that the dielectric filter component 30 is placed on the stepped portions 10a on both inner walls of the case body 10, the lid 12 is covered, and the elastic force of the cushion material 51 is used to press and fix. Of course, the structure may be such that the dielectric filter component is placed on the step portion and directly fixed with an adhesive.
【００１６】図６は本発明に係る誘電体フィルタ部品の
他の実施例を示す斜視図である。この例は、ディスク状
誘電体共振器の高さを変えて配列した例である。３個の
誘電体共振器のうち中央の誘電体共振器５２ｂは両側の
誘電体共振器５２ａ，５２ｃよりも高さ寸法が大きい。
そのような個別製品の誘電体共振器を用いて絶縁材料５
４でモールド一体化した構造である。あるいは高さの同
じ誘電体共振器を用いてモールド成形した後、あるいは
前記図２のように誘電体棒を用いてモールド成形し所定
の位置で切断した後、段付け加工を施してもよい。この
ような構造とすると、周波数調整要素の簡略化が可能と
なる。FIG. 6 is a perspective view showing another embodiment of the dielectric filter component according to the present invention. In this example, the heights of the disk-shaped dielectric resonators are changed and arranged. Of the three dielectric resonators, the central dielectric resonator 52b has a larger height than the dielectric resonators 52a and 52c on both sides.
Insulation material 5 using the dielectric resonator of such an individual product
It is a structure integrated with the mold in 4. Alternatively, a step may be performed after molding using a dielectric resonator having the same height or after molding using a dielectric rod and cutting at a predetermined position as shown in FIG. With such a structure, the frequency adjustment element can be simplified.
【００１７】図７は本発明に係る誘電体フィルタ部品の
製造方法の他の実施例を示す斜視図であり、図８はそれ
により製作した誘電体フィルタ部品の斜視図である。複
数本（ここでは３本）の誘電体棒４２を所定の間隔をお
いて並置し、それらを絶縁材料４４を用いてモールド一
体化する。この時、誘電体棒４２の間の位置に、該誘電
体棒４２の軸方向に沿って逃げ溝４５を形成しておく。
この逃げ溝４５の形成は、モールド時がよいが、モール
ド後でもよい。そして、前記誘電体棒４２の中心軸に対
して垂直な方向に、誘電体共振器として必要な厚さに対
応する寸法で切断する（切断位置を仮想線で示す）こと
により、容易に同じ配列の図８に示すような誘電体フィ
ルタ部品が量産可能である。FIG. 7 is a perspective view showing another embodiment of the method for producing a dielectric filter component according to the present invention, and FIG. 8 is a perspective view of the dielectric filter component produced thereby. A plurality of (here, three) dielectric rods 42 are juxtaposed at predetermined intervals, and they are integrally molded by using an insulating material 44. At this time, an escape groove 45 is formed at a position between the dielectric rods 42 along the axial direction of the dielectric rods 42.
The escape groove 45 is preferably formed during molding, but may be formed after molding. Then, by cutting the dielectric rod 42 in the direction perpendicular to the central axis in a dimension corresponding to the thickness required for the dielectric resonator (the cutting position is shown by an imaginary line), the same arrangement can be easily achieved. The dielectric filter component shown in FIG. 8 can be mass-produced.
【００１８】この誘電体フィルタ部品３０は、３個の誘
電体共振器３２を所定の間隔をおいて配列し、それらを
絶縁材料３４で直方体状にモールド一体化した構造であ
る。各誘電体共振器３２の間には、結合調整用部材を挿
入するための逃げ部（切欠き部）３５が存在する。The dielectric filter component 30 has a structure in which three dielectric resonators 32 are arranged at a predetermined interval and they are molded and integrated with an insulating material 34 in a rectangular parallelepiped shape. Between each of the dielectric resonators 32, there is an escape portion (notch portion) 35 for inserting the coupling adjusting member.
【００１９】逃げ部３５の形状は、上記の矩形状の他、
図９のＡに示すような台形でもよいし、Ｂのような半円
形など任意である。これらの構造では、筐体１０の側壁
から結合調整用ネジ５６を出入することにより段間の結
合度調整を可能としている。また図１０に示すように、
結合調整用ネジ５６の先端が対向するモールド絶縁材料
の部分に削り加工を施すことによっても（削り加工部を
符号５８で示す）、段間の結合度調整が可能である。The shape of the escape portion 35 is, in addition to the above rectangular shape,
A trapezoid as shown in A of FIG. 9 may be used, or a semicircle such as B may be arbitrarily used. In these structures, the coupling degree adjusting screw 56 can be adjusted by inserting and removing the coupling adjusting screw 56 from the side wall of the housing 10. Also, as shown in FIG.
The degree of coupling between the steps can also be adjusted by subjecting the portion of the mold insulating material where the tips of the coupling adjusting screws 56 face each other to a machining process (the machined region is indicated by reference numeral 58).
【００２０】図１１は結合度調整の他の例を示してい
る。誘電体共振器３２の間の位置の、該誘電体共振器軸
方向に対して直角方向に貫通穴６０を形成し、それを結
合調整用ネジ５６の逃げ部とした例である。Ａは平面か
ら見た図、Ｂは側面から見た図である。FIG. 11 shows another example of coupling degree adjustment. This is an example in which a through hole 60 is formed at a position between the dielectric resonators 32 in a direction perpendicular to the axial direction of the dielectric resonators, and is used as a clearance portion for the coupling adjusting screw 56. A is a plan view, and B is a side view.
【００２１】本発明は入出力用導波管を備えた金属製筐
体を用いる構造にも適用できる。図１２はその一例であ
り、入出力形状が片側導波管、片側アンテナポストの場
合である。導波管に接続する側はフランジ接続構造６２
となっており、接続用のネジ穴６４を設けてある。片側
がアンテナポスト１８であるので、それに突き当てるこ
とで位置決めを行える。その他の構造は図４とほぼ同様
であるので、対応する部材に同一符号を付し、それらに
ついての説明は省略する。図１３は更に他の例であり、
入出力形状が両側とも導波管の場合である。従って、両
側ともにフランジ接続構造６２となっており、それぞれ
に接続用のネジ穴を設けている。The present invention can also be applied to a structure using a metal casing having an input / output waveguide. FIG. 12 is an example thereof, and shows the case where the input / output shape is a one-sided waveguide and one-sided antenna post. The side connecting to the waveguide is a flange connection structure 62
And a screw hole 64 for connection is provided. Since the antenna post 18 is provided on one side, positioning can be performed by abutting it. Since the other structures are almost the same as those in FIG. 4, the corresponding members are designated by the same reference numerals, and the description thereof will be omitted. FIG. 13 shows another example,
This is a case where the input and output shapes are both waveguides. Therefore, the flange connection structure 62 is provided on both sides, and a screw hole for connection is provided in each of them.
【００２２】以上、本発明の好ましい実施例について詳
述したが、本発明はこのような構成にのみ限定されるも
のではない。組み込む誘電体共振器の個数は２個以上任
意である。誘電体共振器は、ディスク状の他、筒状など
であってもよい。モールドした後の絶縁材料の形状は、
組み込む筐体形状に応じて適宜変更できる。また誘電体
共振器同士の間に穴を設ける場合、穴形状やその大き
さ、位置なども適宜変更してよい。The preferred embodiment of the present invention has been described above in detail, but the present invention is not limited to such a configuration. The number of built-in dielectric resonators is arbitrary 2 or more. The dielectric resonator may have a disk shape, a cylindrical shape, or the like. The shape of the insulating material after molding is
It can be appropriately changed according to the shape of the housing to be incorporated. When holes are provided between the dielectric resonators, the hole shape, the size, the position, etc. may be changed as appropriate.
【００２３】[0023]
【発明の効果】本発明は上記のように、複数の誘電体共
振器を所定の間隔をおいて配列し、絶縁材料でモールド
一体化した誘電体フィルタ部品であるから、誘電体共振
器間寸法を精度良くでき且つ容易に多量に製作できる。
このため、従来の誘電体共振器を１個ずつ接着固定する
構造に比べて、量産性に富み、高精度の誘電体フィルタ
を低コストで製作することが可能となる。As described above, the present invention is a dielectric filter component in which a plurality of dielectric resonators are arranged at a predetermined interval and are molded and integrated with an insulating material. Can be manufactured accurately and easily in large quantities.
Therefore, as compared with the conventional structure in which the dielectric resonators are bonded and fixed one by one, it is possible to manufacture a highly accurate dielectric filter with high mass productivity.
【００２４】特に入出力アンテナポストを有する構造の
場合は、誘電体フィルタ部品を金属製の筐体に組み込ん
で誘電体フィルタを作製する際に、装着時に入出力ポス
トに突き当てることで容易に位置決めができる。In particular, in the case of a structure having an input / output antenna post, when the dielectric filter component is incorporated into a metal casing to produce a dielectric filter, it is easily positioned by abutting against the input / output post during mounting. You can
【図１】本発明に係る誘電体フィルタ部品の一実施例を
示す斜視図。FIG. 1 is a perspective view showing an embodiment of a dielectric filter component according to the present invention.
【図２】その製造工程を示す説明図。FIG. 2 is an explanatory view showing the manufacturing process thereof.
【図３】本発明に係る誘電体フィルタ部品の他の実施例
を示す斜視図。FIG. 3 is a perspective view showing another embodiment of the dielectric filter component according to the present invention.
【図４】本発明に係る誘電体フィルタの一実施例を示す
断面図。FIG. 4 is a sectional view showing an embodiment of a dielectric filter according to the present invention.
【図５】本発明に係る誘電体フィルタの他の実施例を示
す断面図。FIG. 5 is a sectional view showing another embodiment of the dielectric filter according to the present invention.
【図６】本発明に係る誘電体フィルタ部品の他の実施例
を示す斜視図。FIG. 6 is a perspective view showing another embodiment of the dielectric filter component according to the present invention.
【図７】本発明に係る誘電体フィルタ部品の他の製造工
程を示す説明図。FIG. 7 is an explanatory view showing another manufacturing process of the dielectric filter component according to the present invention.
【図８】それにより得られる誘電体フィルタ部品の斜視
図。FIG. 8 is a perspective view of a dielectric filter component thus obtained.
【図９】段間結合調整の一例を示す説明図。FIG. 9 is an explanatory diagram showing an example of interstage coupling adjustment.
【図１０】段間結合調整の他の例を示す説明図。FIG. 10 is an explanatory diagram showing another example of interstage coupling adjustment.
【図１１】段間結合調整の更に他の例を示す説明図。FIG. 11 is an explanatory diagram showing still another example of interstage coupling adjustment.
【図１２】誘電体フィルタの他の例を示す正面図と断面
図。FIG. 12 is a front view and a cross-sectional view showing another example of a dielectric filter.
【図１３】誘電体フィルタの更に他の例を示す断面図。FIG. 13 is a sectional view showing still another example of a dielectric filter.
【図１４】従来の誘電体フィルタの一例を示す断面図。FIG. 14 is a sectional view showing an example of a conventional dielectric filter.
【図１５】その蓋体を取り外した状態の平面図。FIG. 15 is a plan view showing a state in which the lid is removed.
３０ 誘電体フィルタ部品 ３２ 誘電体共振器 ３４ 絶縁材料 30 Dielectric Filter Parts 32 Dielectric Resonator 34 Insulating Material
───────────────────────────────────────────────────── フロントページの続き (72)発明者 池田 豊 東京都港区新橋５丁目36番11号 富士電気 化学株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yutaka Ikeda 5-36-11 Shimbashi, Minato-ku, Tokyo Inside Fuji Electric Chemical Co., Ltd.
Claims (8)
て配列し、それらを低誘電率で且つ低誘電体損失の絶縁
材料によりモールド一体化してなる誘電体フィルタ部
品。1. A dielectric filter component in which a plurality of dielectric resonators are arranged at a predetermined interval and are integrally molded with an insulating material having a low dielectric constant and a low dielectric loss.
て配列し、それらを低誘電率で且つ低誘電体損失の絶縁
材料によりモールド一体化してなり、誘電体共振器同士
の間のモールド絶縁材料に、結合調整用部材を挿入可能
な逃げ部を形成した形状の誘電体フィルタ部品。2. A plurality of dielectric resonators are arranged at a predetermined interval, and they are molded and integrated with an insulating material having a low dielectric constant and a low dielectric loss, and the dielectric resonators are arranged between the dielectric resonators. A dielectric filter component having a shape in which a relief portion into which a coupling adjusting member can be inserted is formed in a mold insulating material.
項１又は２記載の誘電体フィルタ部品。3. The dielectric filter component according to claim 1, wherein a foaming resin is used as the insulating material.
並置し、それらを低誘電率で且つ低誘電体損失の絶縁材
料を用いてモールド一体化した後、前記誘電体棒の中心
軸に対して垂直な方向に、誘電体共振器として必要な厚
さに対応する寸法で切断することを特徴とする誘電体フ
ィルタ部品の製造方法。4. A center of the dielectric rod after a plurality of dielectric rods are juxtaposed at a predetermined interval and are integrally molded by using an insulating material having a low dielectric constant and a low dielectric loss. A method of manufacturing a dielectric filter component, comprising cutting in a direction corresponding to a thickness required for a dielectric resonator in a direction perpendicular to an axis.
タ部品を、入出力用アンテナポストを有する金属製の筐
体内に収め固定した誘電体フィルタ。5. A dielectric filter in which the dielectric filter component according to claim 1, 2 or 3 is housed and fixed in a metal casing having an input / output antenna post.
タ部品を、入出力用導波管を有する金属製の筐体内に収
め固定した誘電体フィルタ。6. A dielectric filter in which the dielectric filter component according to claim 1, 2 or 3 is housed and fixed in a metal casing having an input / output waveguide.
台または段差部を設け、その上に誘電体フィルタ部品を
載せ、接着剤により固定する請求項５又は６記載の誘電
体フィルタ。7. The dielectric filter according to claim 5, wherein a support base or a stepped portion is provided inside a case main body constituting the housing, and a dielectric filter component is placed on the support base or the stepped portion and fixed by an adhesive.
差部を設け、その段差上に誘電体フィルタ部品を載せ、
上方のクッション材を介して蓋体を押し付けて固定する
請求項５又は６記載の誘電体フィルタ。8. A stepped portion is provided on an inner side wall of a case body constituting a casing, and a dielectric filter component is placed on the stepped portion.
The dielectric filter according to claim 5, wherein the lid is pressed and fixed via an upper cushion material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22509793A JP3275928B2 (en) | 1993-08-18 | 1993-08-18 | Dielectric filter component, method of manufacturing the same, and dielectric filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22509793A JP3275928B2 (en) | 1993-08-18 | 1993-08-18 | Dielectric filter component, method of manufacturing the same, and dielectric filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0758505A true JPH0758505A (en) | 1995-03-03 |
| JP3275928B2 JP3275928B2 (en) | 2002-04-22 |
Family
ID=16823944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22509793A Expired - Fee Related JP3275928B2 (en) | 1993-08-18 | 1993-08-18 | Dielectric filter component, method of manufacturing the same, and dielectric filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3275928B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6127907A (en) * | 1997-11-07 | 2000-10-03 | Nec Corporation | High frequency filter and frequency characteristics regulation method therefor |
| US6504444B1 (en) | 1997-11-07 | 2003-01-07 | Nec Corporation | High frequency integrated circuit including an isolator and dielectric filter |
| US7538640B2 (en) | 2005-03-03 | 2009-05-26 | The Doshisha | Waveguide and attenuation pole waveguide bandpass filter |
| WO2013122118A1 (en) * | 2012-02-14 | 2013-08-22 | 学校法人 龍谷大学 | Artificial dielectric resonator and artificial dielectric filter using same |
| JP2017022772A (en) * | 2016-09-29 | 2017-01-26 | ▲ホア▼▲ウェイ▼技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Artificial dielectric resonator and artificial dielectric filter employing the same |
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| US11658404B2 (en) * | 2020-09-22 | 2023-05-23 | Apple Inc. | Electronic devices having housing-integrated dielectric resonator antennas |
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1993
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6127907A (en) * | 1997-11-07 | 2000-10-03 | Nec Corporation | High frequency filter and frequency characteristics regulation method therefor |
| US6504444B1 (en) | 1997-11-07 | 2003-01-07 | Nec Corporation | High frequency integrated circuit including an isolator and dielectric filter |
| US7538640B2 (en) | 2005-03-03 | 2009-05-26 | The Doshisha | Waveguide and attenuation pole waveguide bandpass filter |
| WO2013122118A1 (en) * | 2012-02-14 | 2013-08-22 | 学校法人 龍谷大学 | Artificial dielectric resonator and artificial dielectric filter using same |
| JP2013168752A (en) * | 2012-02-14 | 2013-08-29 | Ryukoku Univ | Artificial dielectric resonator and artificial dielectric filter employing the same |
| CN104620441A (en) * | 2012-02-14 | 2015-05-13 | 华为技术有限公司 | Artificial dielectric resonator and artificial dielectric filter based on it |
| US9673500B2 (en) | 2012-02-14 | 2017-06-06 | Huawei Technologies Co., Ltd. | Artificial dielectric resonator and artificial dielectric filter using the same |
| US9905904B2 (en) | 2012-02-14 | 2018-02-27 | Huawei Technologies Co., Ltd. | Artificial dielectric resonator and artificial dielectric filter using the same |
| JP2017022772A (en) * | 2016-09-29 | 2017-01-26 | ▲ホア▼▲ウェイ▼技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Artificial dielectric resonator and artificial dielectric filter employing the same |
| US11658404B2 (en) * | 2020-09-22 | 2023-05-23 | Apple Inc. | Electronic devices having housing-integrated dielectric resonator antennas |
| US20220094064A1 (en) * | 2020-09-23 | 2022-03-24 | Apple Inc. | Electronic Devices Having Compact Dielectric Resonator Antennas |
| US11967781B2 (en) * | 2020-09-23 | 2024-04-23 | Apple Inc. | Electronic devices having compact dielectric resonator antennas |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3275928B2 (en) | 2002-04-22 |
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