JP3275928B2 - Dielectric filter component, method of manufacturing the same, and dielectric filter - Google Patents
Dielectric filter component, method of manufacturing the same, and dielectric filterInfo
- Publication number
- JP3275928B2 JP3275928B2 JP22509793A JP22509793A JP3275928B2 JP 3275928 B2 JP3275928 B2 JP 3275928B2 JP 22509793 A JP22509793 A JP 22509793A JP 22509793 A JP22509793 A JP 22509793A JP 3275928 B2 JP3275928 B2 JP 3275928B2
- Authority
- JP
- Japan
- Prior art keywords
- dielectric
- dielectric filter
- filter component
- insulating material
- resonators
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
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 in which a plurality of dielectric resonators are juxtaposed and housed 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 integrally molded 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 communication system in a microwave band or a millimeter wave band.
【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, and one of them is a dielectric filter called a disk type. 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 becomes 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。One example is shown in FIGS. 14 and 15. FIG. The metal housing is composed of a combination of the case body 10 and the lid 12. The case body 10 has an elongated recess 14 in the center, and input / output connectors 16 are attached to both ends. An input / output post 1 is provided inside both ends of the concave portion 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 wall of the case body 10. Three disk-shaped dielectric resonators 20 are arranged in the concave portion 14 of the case main body 10 at predetermined intervals, and are respectively adhered to the electrically insulating support base 22. A frequency adjusting screw 24 is attached to the lid 12 placed on the case body 10 so as to be capable of moving forward and backward so as to face each of the dielectric resonators 20, and can be fixed at a predetermined position by a lock nut 26. The forward / backward movement of the frequency adjusting screw 24 causes the tip end surface to approach or move 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 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, very strict precision is required for the dimensions between the dielectric resonators and between the dielectric resonators and the input / output posts. Therefore, mass production is extremely difficult and the manufacturing cost is high with the structure in which each of the dielectric resonators 20 is bonded and assembled one by one on the support base 22 as described above. In particular, due to recent demands for downsizing and higher frequency, the tendency to reduce the allowable amount of the interval shift has become remarkable, and there is a strong demand for the development of a structure that can cope with this.
【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。SUMMARY OF THE INVENTION It is an object of the present invention to improve the dimensional accuracy between the dielectric resonators and the dimensional accuracy between the dielectric resonators and the input / output posts and to assemble them easily, so that they are excellent in mass productivity and compact. The object of the present invention is to provide a dielectric filter component, a method of manufacturing the same, and a dielectric filter using the same, which can sufficiently cope with the development of the filter.
【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, there is provided a dielectric resonator comprising a plurality of dielectric resonators arranged at predetermined intervals and molded integrally with an insulating material having a low dielectric constant and a low dielectric loss. Body filter parts. A relief 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 a microwave band or a millimeter wave band. As an insulating material having a low dielectric constant and a low dielectric loss, a material such as resin or glass is used. For example, a foamable resin 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 predetermined intervals, and they are molded and integrated using an insulating material, and then perpendicular to the central axis of the dielectric rods. It can be easily mass-produced by cutting in the direction at 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 accommodated and fixed in a metal housing having an input / output antenna post or an input / output waveguide. For example, a step is provided on the inner side wall of the case main body constituting the housing, a dielectric filter component is placed on the step, and a lid is pressed and fixed via an upper cushion material, or a structure using an adhesive is used. There is a structure to fix.
【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 a mold and integrating them with a mold, it is possible to make a module with sufficiently accurate dimensions between the dielectric resonators. This integrated component can be easily incorporated in the housing as it is. Also, when 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 performed only by hitting the input / output post.
【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。FIG. 1 is a perspective view showing an embodiment of a dielectric filter component according to the present invention. This is an example of a component for a three-stage filter. This dielectric filter component 30 has a structure in which three dielectric resonators 32 are arranged at predetermined intervals, and they are molded into a rectangular parallelepiped shape with an insulating material. 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 a 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 therefore has a low dielectric constant. In the dielectric filter component 30, the distance between one of the dielectric resonators 32 and one end surface (for example, 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。[0011] Such a dielectric filter component can be manufactured with high precision by, for example, inserting and arranging each dielectric resonator at a predetermined position in a mold by an insert molding method and injection-molding an insulating material. it can. As shown in FIG. 2, a plurality (three in this case) of dielectric rods 42 are juxtaposed at predetermined intervals, and they are molded and integrated using an insulating material 44. In the direction perpendicular to the central axis, dimensions (X 1 -X 1 , X 2 -X 2 , X 3 -X 3 ,
(Position of...), The dielectric filter components having the same arrangement can be easily mass-produced.
【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 resin and glass materials. Therefore, this dielectric filter component 3
0, when the dielectric resonator 32 is molded with the insulating material 34, holes 36 are provided at positions between the dielectric resonators 32 to form a portion (air) where no insulating material exists. The dielectric constant between the dielectric resonators 32 is reduced while holding the dielectric resonators 32. Hole 36
Here, is a square shape, and one is formed between them, but the shape, size, number, formation position, and the like may be changed as appropriate.
【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 structure in which a dielectric filter component 30 as shown in FIG. 1 is used and fixed in a metal case having an input / output antenna post is used. As in the conventional case, the metal housing is composed of the case body 10 and the lid 1.
Combination with 2. The case body 10 has an elongated recess 14 in 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 concave portion 14 of the case main body 10, and one end thereof is connected to a 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 above-mentioned dielectric filter component 30 is placed thereon and fixed by bonding. The support base 38 may have a structure that supports substantially the entire lower surface of the dielectric filter component 30 as illustrated, or may have a structure that partially supports the dielectric filter component 30 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 right dielectric resonator in FIG. 4) and one end surface 34a of the mold insulating material 34 is set to a predetermined length in advance. Since the one end face 34a is in contact with one of the input / output posts 18, accurate positioning between the dielectric resonator 32 and the input / output posts 18 can be easily performed. The other configuration is the same as that of the above-mentioned prior art, and the frequency adjusting screws 24 are attached so as to be able to advance and retreat, respectively, so as to be opposed to the respective dielectric resonators 32 so that they can be fixed at predetermined positions by the lock nuts 26, It is configured so that frequency adjustment is possible.
【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, a step portion 10a is formed on the inner wall on both sides 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 And is pressed down and fixed by utilizing the elasticity of the cushion material 50. In the case of B, the legs 12a are 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 step portion 10 a on the inner wall on both sides of the case body 10, covered with the lid 12, and pressed down and fixed using the elasticity of the cushion material 51. Of course, a structure in which the dielectric filter component is placed on the step and fixed directly with an adhesive may be used.
【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. This example is an example in which the height of a disk-shaped dielectric resonator is changed and arranged. Of the three dielectric resonators, the central dielectric resonator 52b has a larger height dimension than the dielectric resonators 52a and 52c on both sides.
Insulation material 5 using such a separate product dielectric resonator
4 is a structure integrated with the mold. Alternatively, step molding 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 of manufacturing the dielectric filter component according to the present invention, and FIG. 8 is a perspective view of the dielectric filter component manufactured thereby. A plurality (three in this case) of dielectric rods 42 are juxtaposed at predetermined intervals, and they are molded and integrated using an insulating material 44. At this time, a clearance 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 in a direction perpendicular to the central axis of the dielectric rod 42 at a size corresponding to the thickness required as a dielectric resonator (cut positions are indicated by phantom lines), the same arrangement can be easily achieved. 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 predetermined intervals, and they are molded into a rectangular parallelepiped with an insulating material. 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-mentioned rectangular shape,
A trapezoid as shown in FIG. 9A or a semicircle such as B is arbitrary. In these structures, the degree of coupling between the steps 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 shaving the portion of the mold insulating material facing the tip of the coupling adjusting screw 56 (the shaved portion 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 the coupling degree adjustment. This is an example in which a through hole 60 is formed at a position between the dielectric resonators 32 and in a direction perpendicular to the axial direction of the dielectric resonator, and the through hole 60 is used as a clearance for the screw 56 for coupling adjustment. A is a diagram viewed from a plane, and B is a diagram viewed from a side.
【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 be applied to a structure using a metal housing provided with an input / output waveguide. FIG. 12 shows an example of this case, in which the input / output shape is a one-sided waveguide and a one-sided antenna post. The side connected to the waveguide is a flange connection structure 62
And a screw hole 64 for connection is provided. Since one side is the antenna post 18, positioning can be performed by abutting the antenna post 18. Since other structures are almost the same as those in FIG. 4, corresponding members are denoted by the same reference numerals, and description thereof will be omitted. FIG. 13 shows still another example,
This is the case where the input and output shapes are waveguides on both sides. Therefore, both sides have a flange connection structure 62, and each has a screw hole for connection.
【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。Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to only such a configuration. The number of dielectric resonators to be incorporated may be two or more. The dielectric resonator may have a disk shape or a cylindrical shape. The shape of the insulating material after molding is
It can be changed appropriately according to the housing shape to be incorporated. When a hole is provided between the dielectric resonators, the hole shape, the size, the position, and the like may be appropriately changed.
【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 molded integrally with an insulating material. Can be manufactured with high precision and easily in large quantities.
For this reason, compared to the conventional structure in which the dielectric resonators are bonded and fixed one by one, it is possible to manufacture a dielectric filter with high mass productivity and high precision at low cost.
【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 in a metal casing to produce a dielectric filter, it is easily positioned by abutting the input / output post during mounting. Can be.
【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 one 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.
【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 one 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 obtained thereby.
【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 view 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 sectional view showing another example of the 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 the 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 where 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 Reference Signs List 30 dielectric filter component 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 (56)参考文献 特開 平６−334413（ＪＰ，Ａ) 特開 昭63−269802（ＪＰ，Ａ) 実開 平４−8501（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01P 1/20 H01P 7/10 H01P 11/00 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yutaka Ikeda 5-36-11 Shimbashi, Minato-ku, Tokyo Inside Fuji Electric Chemical Co., Ltd. (56) References JP-A-6-334413 (JP, A) JP 63-269802 (JP, A) Japanese Utility Model Application Hei 4-8501 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) H01P 1/20 H01P 7/10 H01P 11/00
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 comprising a plurality of dielectric resonators arranged at predetermined intervals and molded integrally 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 method according to claim 1, wherein a plurality of dielectric resonators are arranged at predetermined intervals, and are integrally molded with an insulating material having a low dielectric constant and a low dielectric loss. 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 molded 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 method in which a plurality of dielectric rods are juxtaposed at predetermined intervals and are integrated by molding using an insulating material having a low dielectric constant and a low dielectric loss. A method for manufacturing a dielectric filter component, comprising cutting in a direction perpendicular to an axis to a size corresponding to a thickness required for a dielectric resonator.
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 housing 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, wherein the dielectric filter component according to claim 1, 2 or 3 is housed and fixed in a metal housing 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 step portion is provided inside the case main body constituting the housing, and a dielectric filter component is mounted thereon and fixed with 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 step portion is provided on an inner side wall of a case main body constituting a housing, and a dielectric filter component is mounted on the step portion,
7. 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 JPH0758505A (en) | 1995-03-03 |
| JP3275928B2 true 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) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3149831B2 (en) | 1997-11-07 | 2001-03-26 | 日本電気株式会社 | High frequency integrated circuit and manufacturing method thereof |
| EP0915528A3 (en) * | 1997-11-07 | 1999-08-11 | Nec Corporation | High frequency filter and frequency characteristics regulation method therefor |
| JP2006279916A (en) | 2005-03-03 | 2006-10-12 | Doshisha | Waveguide and polar band-pass waveguide filter |
| JP6255605B2 (en) | 2012-02-14 | 2018-01-10 | ▲ホア▼▲ウェイ▼技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Artificial dielectric resonator and artificial dielectric filter using the same |
| JP6288592B2 (en) * | 2016-09-29 | 2018-03-07 | ▲ホア▼▲ウェイ▼技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Artificial dielectric resonator and artificial dielectric filter using the same |
| US11658404B2 (en) * | 2020-09-22 | 2023-05-23 | Apple Inc. | Electronic devices having housing-integrated dielectric resonator antennas |
| US11967781B2 (en) * | 2020-09-23 | 2024-04-23 | Apple Inc. | Electronic devices having compact dielectric resonator antennas |
-
1993
- 1993-08-18 JP JP22509793A patent/JP3275928B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0758505A (en) | 1995-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101869757B1 (en) | Radio frequency filter with cavity structure | |
| EP1798805B1 (en) | Dielectric resonator filter assemblies and methods | |
| US4142164A (en) | Dielectric resonator of improved type | |
| CA2302588C (en) | Multimode dielectric resonator device, dielectric filter, composite dielectric filter, synthesizer, distributor, and communication device | |
| US20030090342A1 (en) | Triple-mode mono-block filter assembly | |
| US20060028299A1 (en) | Dielectric resonator device, dielectric filter, composite dielectric filter, and communication apparatus | |
| US7298232B2 (en) | Low-loss filter and frequency multiplexer | |
| JPS6221301A (en) | Dielectric resonator filter | |
| US20030090343A1 (en) | Tunable triple-mode mono-block filter assembly | |
| JP3275928B2 (en) | Dielectric filter component, method of manufacturing the same, and dielectric filter | |
| JPH05206706A (en) | Interdigital type band pass filter | |
| JP2998627B2 (en) | Dielectric resonator | |
| EP1148574B1 (en) | Dielectric resonator, filter, duplexer, and communication device | |
| EP2070151B1 (en) | Re-entrant resonant cavities, filters including such cavities and method of manufacture | |
| EP1269563B1 (en) | A coaxial cavity resonator, filter and use of resonator component in a filter | |
| US5004993A (en) | Constricted split block waveguide low pass filter with printed circuit filter substrate | |
| JPS63302601A (en) | Dielectric filter | |
| US20070096986A1 (en) | Method for making a waveguide microwave antenna | |
| JP2005020077A (en) | 90 degree bent waveguide, waveguide filter element, and high frequency circuit unit | |
| KR101021131B1 (en) | Floating microwave filter in a waveguide structure | |
| JP2006340141A (en) | Manufacturing method of dielectric waveguide filter | |
| GB2367952A (en) | Microwave dual mode dielectric resonator | |
| JPH0622282B2 (en) | Outer coupling structure of dielectric resonator and outer coupling adjusting method using the same | |
| JPH0779201B2 (en) | NRD Guide Filter Directly Connected to Waveguide | |
| JPH0828611B2 (en) | Method of adjusting resonance frequency of TM mode dielectric resonator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |