JP3017917B2 - Dielectric resonator - Google Patents
Dielectric resonatorInfo
- Publication number
- JP3017917B2 JP3017917B2 JP6133580A JP13358094A JP3017917B2 JP 3017917 B2 JP3017917 B2 JP 3017917B2 JP 6133580 A JP6133580 A JP 6133580A JP 13358094 A JP13358094 A JP 13358094A JP 3017917 B2 JP3017917 B2 JP 3017917B2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- face
- outer peripheral
- hole
- peripheral surface
- 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 - Lifetime
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は携帯用電話機等に使用さ
れる誘電体共振器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dielectric resonator used for a portable telephone or the like.
【０００２】[0002]
【従来の技術】バンドパスフィルタ又はバンドストップ
フィルタ等を形成するための従来のＴＥＭモード同軸型
誘電体共振器は貫通孔を有する筒状誘電体と、貫通孔に
設けられた内導体と、誘電体の外周面に設けられた外導
体と、誘電体の一方の端面で内導体と外導体とを接続す
る短絡導体と、誘電体の他方の端面（開放端面）側から
貫通孔に挿入されて内導体に接続された端子部材とから
成る。2. Description of the Related Art A conventional TEM mode coaxial dielectric resonator for forming a band-pass filter or a band-stop filter includes a cylindrical dielectric having a through hole, an inner conductor provided in the through hole, and a dielectric. An outer conductor provided on the outer peripheral surface of the body, a short-circuit conductor for connecting the inner conductor and the outer conductor at one end of the dielectric, and a through-hole inserted from the other end (open end) of the dielectric. And a terminal member connected to the inner conductor.
【０００３】[0003]
【発明が解決しようとする課題】ところで、端子部材を
使用する誘電体共振器は、独立した端子部材を用意する
ために部品点数が多くなり、且つ製造が面倒であった。
更に、端子部材が誘電体の貫通孔から突出するために全
体の寸法が大きくなった。また、誘電体共振器の内導体
及び外導体を回路基板に対して高い信頼性を有して接続
することが困難であった。また、短絡導体によって内導
体と外導体とを高い信頼性を有して接続することが困難
であったIncidentally, the dielectric resonator using the terminal member has a large number of parts and is troublesome in manufacturing since an independent terminal member is prepared.
Further, since the terminal members protrude from the through holes of the dielectric, the overall size is increased. Further, it has been difficult to connect the inner conductor and the outer conductor of the dielectric resonator to the circuit board with high reliability. Further, it was difficult to connect the inner conductor and the outer conductor with high reliability by the short-circuit conductor.
【０００４】そこで、本発明の目的は、接続端子を使用
しないで外部回路に対する接続が可能であり、且つ小型
化することができると共に接続の信頼性を高められるこ
とができる表面実装型の誘電体共振器を提供することに
ある。An object of the present invention is to provide a surface mount type dielectric which can be connected to an external circuit without using a connection terminal, can be reduced in size, and can improve the reliability of the connection. It is to provide a resonator.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
の本発明は、第１及び第２の端面と外周面と前記第１の
端面から前記第２の端面に至る貫通孔とを有する誘電体
と、前記貫通孔に設けられた導電性物質の被着層から成
る内導体と、前記外周面に設けられた導電性物質の被着
層から成る外導体とを備え、前記第１及び第２の端面は
前記貫通孔の延びる方向に対して直角に形成され、前記
外周面は第１及び第２の端面に対して直角に形成され誘
電体共振器において、 前記第１の端面に前記貫通孔か
ら前記外周面に至る溝が設けられ、 この溝の中に前記
貫通孔から前記外周面に至るように導電性物質の被着層
から成る表面実装用端子導体が設けられ、前記端子導体
は前記内導体に接続され且つ前記外周面において前記外
導体と分離されていることを特徴とする誘電体共振器に
係わるものである。なお、請求項２に示すように外周面
に溝を設け、この中にも外導体を設けることができる。
また、請求項３に示すように短絡導体を設けることが望
ましい。また、請求項４に示すように第２の端面に溝を
設け、ここに短絡導体を設けることができる。According to the present invention, there is provided a dielectric material having first and second end faces, an outer peripheral face, and a through hole extending from the first end face to the second end face. And a conductive layer provided on the through-hole.
The inner conductor and the conductive material provided on the outer peripheral surface.
And an outer conductor comprising a layer , wherein the first and second end faces are
Formed at right angles to the direction in which the through hole extends,
An outer peripheral surface is formed at right angles to the first and second end surfaces. In the dielectric resonator, the first end surface has a through hole.
Grooves are provided extending in al the outer peripheral surface, wherein in the groove
An adhesion layer of a conductive substance extending from the through hole to the outer peripheral surface;
Surface mount terminal conductor made of is provided, the terminal conductor is the outer in the connected and the outer peripheral surface to the inner conductor
The present invention relates to a dielectric resonator characterized by being separated from a conductor . In addition, a groove may be provided on the outer peripheral surface, and an outer conductor may be provided therein.
It is desirable to provide a short-circuit conductor as described in claim 3. Further, a groove may be provided in the second end face, and a short-circuit conductor may be provided here.
【０００６】[0006]
【発明の作用及び効果】請求項１の発明は次の効果を有
する。 （イ）貫通孔から外周面に至る溝を設け、この溝の中に
貫通孔から外周面に至るように導電性物質の被着層から
成る表面実装用端子導体を設けたので、誘電体共振器を
回路基板に対して独立の接続端子部材を使用しないで表
面実装することができる。 （ロ） 溝の中に導電性物質の被着層から成る表面実装
用端子導体を設けるので、この端子導体を溝によって保
護することができ、誘電体共振器の回路基板への接続の
信頼性が向上する。請求項２の発明は次の効果を有す
る。 （ハ） 外周面の溝の中に半田を配置して外導体を回路
基板に接続するので、この接続が強固になり、信頼性が
向上する。請求項４の発明は次の効果を有する。 （ニ） 第２の端面の溝に短絡導体が配設されるので、
内導体と導体との接続の信頼性が向上する。なお、請求
項３は請求項１及び２と同一の効果を有する。 The operation and effect of the present invention have the following effects.
I do. (B) A groove is provided from the through hole to the outer peripheral surface.
From the deposited layer of conductive material to the through hole to the outer peripheral surface
Surface conductor terminal conductors
Do not use independent connection terminal members for the circuit board.
Can be surface mounted. (B) Surface mounting consisting of a layer of conductive material in the groove
Terminal conductors are provided.
The connection of the dielectric resonator to the circuit board.
Reliability is improved. The invention of claim 2 has the following effects.
You. (C) Place the solder in the groove on the outer peripheral surface and connect the outer conductor to the circuit.
Because it connects to the board, this connection is strong and reliable.
improves. The invention of claim 4 has the following effects. (D) Since the short-circuit conductor is provided in the groove on the second end face,
The reliability of the connection between the inner conductor and the conductor is improved. In addition, billing
Item 3 has the same effect as items 1 and 2.
【０００７】[0007]
【実施例】次に、図１〜図６を参照して本発明の実施例
に係わるＴＥＭモード同軸型誘電体共振器を説明する。
この誘電体共振器１は、誘電体磁器から成る筒状誘電体
２と、誘電体２の第１の端面３からこれに対向する第２
の端面４に至るように形成された円形貫通孔５と、この
貫通孔５に形成された内導体６と、誘電体２の外周面
（４つの側面）７に形成された外導体８と、内導体６と
外導体８とを接続するように第２の端面４に形成された
短絡導体９と、第１の端面３と外周面７の一部に形成さ
れた端子導体１０とから成る。Next, a TEM mode coaxial dielectric resonator according to an embodiment of the present invention will be described with reference to FIGS.
The dielectric resonator 1 includes a cylindrical dielectric 2 made of a dielectric porcelain, and a second end face 3 facing the first end face 3 of the dielectric 2.
A circular through-hole 5 formed so as to reach the end surface 4, an inner conductor 6 formed in the through-hole 5, an outer conductor 8 formed on an outer peripheral surface (four side surfaces) 7 of the dielectric 2, It comprises a short-circuit conductor 9 formed on the second end face 4 so as to connect the inner conductor 6 and the outer conductor 8, and a terminal conductor 10 formed on a part of the first end face 3 and a part of the outer peripheral face 7.
【０００８】誘電体２の第１の端面３には図６に示すよ
うに貫通孔５に隣接して溝１１が設けられている。即
ち、外周面７となる４つの側面７ａ、７ｂ、７ｃ、７ｄ
の内の対向する２つの側面７ａ、７ｂを結ぶように帯状
に溝１１が設けられている。端子導体１０はこの溝１１
の中に形成され且つ外周面７の一部即ち側面７ａ、７ｂ
の一部にも至るように形成され且つ内導体６に電気的に
接続されている。端子導体１０と外導体８との間には分
離領域１２が設けられており、両者は相互に接触してい
ない。また、外周面７となる第３及び第４の側面７ｃ、
７ｄのほぼ中央に断面形状半円の溝２０がこの上から下
に至るように設けられ、この溝２０の中にも外導体８が
設けられている。また、第２の端面４のほぼ中央にも溝
２１がこの上から下に至るように設けられ、ここにも短
絡導体９が設けられている。The first end face 3 of the dielectric 2 is provided with a groove 11 adjacent to the through hole 5 as shown in FIG. That is, the four side surfaces 7a, 7b, 7c, and 7d serving as the outer peripheral surface 7
A groove 11 is provided in a strip shape so as to connect two opposing side surfaces 7a and 7b. The terminal conductor 10 is
And a part of the outer peripheral surface 7, that is, side surfaces 7a, 7b
And is electrically connected to the inner conductor 6. An isolation region 12 is provided between the terminal conductor 10 and the outer conductor 8, and they are not in contact with each other. In addition, third and fourth side surfaces 7c, which become the outer peripheral surface 7,
A groove 20 having a semicircular cross section is provided substantially at the center of 7d so as to extend from above to below. The outer conductor 8 is also provided in this groove 20. In addition, a groove 21 is provided substantially at the center of the second end face 4 so as to extend from above to below, and the short-circuit conductor 9 is also provided here.
【０００９】各導体６、８、９、１０は導電性ペースト
（銀ペースト）を塗布して焼付けることによって形成さ
れている。溝１０は導電性ペーストを十分に保持できる
ので、端子導体１０の溝１１の部分の厚さは外導体８等
の厚さよりも厚い。The conductors 6, 8, 9, 10 are formed by applying and baking a conductive paste (silver paste). Since the groove 10 can sufficiently hold the conductive paste, the thickness of the portion of the groove 11 of the terminal conductor 10 is larger than the thickness of the outer conductor 8 or the like.
【００１０】本実施例の誘電体共振器１は、図４におい
て破線で示す回路基板１３の上に表面実装方法で取付け
られる。即ち、回路基板１３のグランド導体層１４に外
導体８を半田１５で結合させ、別の導体層１６に端子導
体１０を半田１７で結合させる。端子導体１０は第１の
端面３のみでなく、２つの側面７ａ、７ｂに設けられて
いるので、２つの側面７ａ、７ｂの内のいずれか一方を
回路基板１３に対向配置する。The dielectric resonator 1 of this embodiment is mounted on a circuit board 13 indicated by a broken line in FIG. 4 by a surface mounting method. That is, the outer conductor 8 is joined to the ground conductor layer 14 of the circuit board 13 by solder 15, and the terminal conductor 10 is joined to another conductor layer 16 by solder 17. Since the terminal conductor 10 is provided not only on the first end face 3 but also on the two side faces 7a and 7b, one of the two side faces 7a and 7b is arranged to face the circuit board 13.
【００１１】本実施例の誘電体共振器は、端子導体１０
が溝１１に設けられ、且つ溝１１は端子導体１０の厚み
よりも深く形成されているので、端子導体１０の厚さを
外導体８よりも厚くすることができ、この回路基板１３
に対する接続強度を高め、接続の信頼性の向上を図るこ
とができる。また、端子導体１０は第１の端面３から突
出しないように溝１１の中に設けられれているので、角
部等に損傷を受け難い。外周面７にも溝２０を有し、こ
こにも外導体８が設けられているので、回路基板１３の
グランド導体層１４に外導体８を半田１５で結合する時
に半田１５が溝２０の中に入り、両者の結合が強固にな
る。また、第２の端面４に溝２１が設けられ、ここに短
絡導体９が設けられているので、短絡導体９のグランド
導体層１４に対する半田１５による結合が強固になるの
みでなく、短絡導体９の一部が溝２１中にあるため損傷
し難く、内導体６と外導体８との接続の信頼性を高める
ことができる。The dielectric resonator of the present embodiment has a terminal conductor 10
Is provided in the groove 11, and the groove 11 is formed deeper than the thickness of the terminal conductor 10. Therefore, the thickness of the terminal conductor 10 can be made larger than that of the outer conductor 8.
And the connection reliability can be improved. In addition, since the terminal conductor 10 is provided in the groove 11 so as not to protrude from the first end face 3, it is difficult for the corners and the like to be damaged. Since the outer conductor 8 also has the groove 20 on the outer peripheral surface 7 and the outer conductor 8 is also provided here, when the outer conductor 8 is joined to the ground conductor layer 14 of the circuit board 13 by the solder 15, the solder 15 And the bond between them becomes stronger. Further, since the groove 21 is provided in the second end face 4 and the short-circuit conductor 9 is provided here, not only the connection of the short-circuit conductor 9 to the ground conductor layer 14 by the solder 15 is strengthened, but also the short-circuit conductor 9 Is hardly damaged because it is in the groove 21, and the reliability of connection between the inner conductor 6 and the outer conductor 8 can be improved.
【００１２】[0012]
【変形例】本発明は上述の実施例に限定されるものでな
く、例えば次の変形が可能なものである。 （１） 図７に示すように、誘電体２を円筒状に形成
し、端面３において貫通孔５を通るように溝１１を形成
し、図１〜図５に示す端子導体１０と同様のものを設け
ることができる。 （２） 外周面７にも溝１１を延在させ、ここに端子導
体１０を設けることができる。 （３） 端子導体１０を端面３のみに設け、外周面７に
延在しないようにすることもできる。 （４） 実施例の誘電体共振器は、短絡導体９を有して
１／４波長型に形成されているが、短絡導体９を省いて
１／２波長型にすることができる。 （５） 溝１１の形状をＶ溝又は半円状溝等の別の形状
にすることができる。また、溝２０、２１をＶ溝又は角
溝等にすることができる。[Modifications] The present invention is not limited to the above-described embodiment, and for example, the following modifications are possible. (1) As shown in FIG. 7, a dielectric 2 is formed in a cylindrical shape, and a groove 11 is formed in the end face 3 so as to pass through the through hole 5, and is similar to the terminal conductor 10 shown in FIGS. Can be provided. (2) The groove 11 also extends on the outer peripheral surface 7, and the terminal conductor 10 can be provided here. (3) The terminal conductor 10 may be provided only on the end face 3 so as not to extend to the outer peripheral face 7. (4) The dielectric resonator according to the embodiment has the short-wavelength conductor 9 and is formed to be a quarter-wavelength type. (5) The shape of the groove 11 can be changed to another shape such as a V-shaped groove or a semicircular groove. Further, the grooves 20 and 21 can be V-shaped grooves or square grooves.
【図１】本発明の実施例の誘電体共振器を示す斜視図で
ある。FIG. 1 is a perspective view showing a dielectric resonator according to an embodiment of the present invention.
【図２】図１の誘電体共振器の正面図である。FIG. 2 is a front view of the dielectric resonator of FIG.
【図３】図１の誘電体共振器の平面図である。FIG. 3 is a plan view of the dielectric resonator of FIG. 1;
【図４】図３のＡ−Ａ線断面図である。FIG. 4 is a sectional view taken along line AA of FIG. 3;
【図５】図２のＢ−Ｂ線の一部を示す断面図である。FIG. 5 is a sectional view showing a part of line BB in FIG. 2;
【図６】図１の誘電体の一部を示す斜視図である。FIG. 6 is a perspective view showing a part of the dielectric of FIG. 1;
【図７】変形例の誘電体共振器の誘電体を示す正面図で
ある。FIG. 7 is a front view showing a dielectric of a dielectric resonator according to a modification.
２ 誘電体 ３ 端面 １０ 端子導体 １１ 溝 2 Dielectric 3 End face 10 Terminal conductor 11 Groove
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平７−235806（ＪＰ，Ａ) 特開 平７−245506（ＪＰ，Ａ) 実開 平５−57905（ＪＰ，Ｕ) 実開 平２−84403（ＪＰ，Ｕ) 実開 平２−38804（ＪＰ，Ｕ) 実開 平２−84408（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01P 7/04 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-7-235806 (JP, A) JP-A-7-245506 (JP, A) JP-A 5-57905 (JP, U) JP-A 2-235506 84403 (JP, U) JP-A-2-38804 (JP, U) JP-A-2-84408 (JP, U) (58) Fields surveyed (Int. Cl. 7 , DB name) H01P 7/04
Claims (4)
の端面から前記第２の端面に至る貫通孔とを有する誘電
体と、前記貫通孔に設けられた導電性物質の被着層から
成る内導体と、前記外周面に設けられた導電性物質の被
着層から成る外導体とを備え、前記第１及び第２の端面
は前記貫通孔の延びる方向に対して直角に形成され、前
記外周面は第１及び第２の端面に対して直角に形成され
誘電体共振器において、 前記第１の端面に前記貫通孔から前記外周面に至る溝が
設けられ、 この溝の中に前記貫通孔から前記外周面に至るように導
電性物質の被着層から成る表面実装用端子導体が設けら
れ、 前記端子導体は前記内導体に接続され且つ前記外周面に
おいて前記外導体と分離されていることを特徴とする誘
電体共振器。A first end face, a second end face, an outer peripheral face, and the first end face;
A dielectric having a through-hole extending from the end face of the second end face to the second end face, and a conductive material deposition layer provided in the through-hole.
And an electrically conductive material provided on the outer peripheral surface.
An outer conductor comprising a deposition layer , wherein the first and second end faces are provided.
Is formed at right angles to the direction in which the through holes extend,
The outer peripheral surface is formed at right angles to the first and second end surfaces. In the dielectric resonator , a groove extending from the through hole to the outer peripheral surface is provided in the first end surface. Inside the through hole to reach the outer peripheral surface.
A surface-mounting terminal conductor comprising an adhered layer of an electrically conductive material is provided, and the terminal conductor is connected to the inner conductor and on the outer peripheral surface.
Wherein the dielectric resonator is separated from the outer conductor .
の端面から前記第２の端面に至る貫通孔とを有する誘電
体と、前記貫通孔に設けられた導電性物質の被着層から
成る内導体と、前記外周面に設けられた導電性物質の被
着層から成る外導体と、回路基板とを備え、前記第１及
び第２の端面は前記貫通孔の延びる方向に対して直角に
形成され、前記外周面は第１及び第２の端面に対して直
角に形成され、前記回路基板はグランド導体層を有し、
前記外導体が前記グランド導体層に半田で接続された誘
電体共振器において、 前記外周面に溝が設けられ、 この溝の中にも前記外導体が設けられ、 前記グランド導体層に対する前記外導体の半田による接
続が前記溝の中に半田が入り込むようになされているこ
とを特徴とする誘電体共振器。2. The first and second end faces, the outer peripheral face, and the first
A dielectric having a through-hole extending from the end face of the second end face to the second end face; an inner conductor formed of a conductive material adhered layer provided in the through-hole; and a conductive substance provided on the outer peripheral face. An outer conductor comprising an adhered layer; and a circuit board, wherein the first and second end faces are formed at right angles to a direction in which the through hole extends, and the outer peripheral face is formed on the first and second end faces. The circuit board has a ground conductor layer,
A dielectric resonator in which the outer conductor is connected to the ground conductor layer by solder; a groove is provided in the outer peripheral surface; the outer conductor is also provided in the groove; and the outer conductor with respect to the ground conductor layer is provided. Soldering
Dielectric resonators, characterized in that connection has been made to solder enters into the groove.
記外導体とを接続する導電性物質の被着層から成る短絡
導体を有している請求項１又は２記載の誘電体共振器。3. The dielectric resonance according to claim 1, further comprising a short-circuit conductor on the second end face, the short-circuit conductor being a layer of a conductive substance connecting the inner conductor and the outer conductor. vessel.
の端面から前記第２の端面に至る貫通孔とを有する誘電
体と、前記貫通孔に設けられた導電性物質の被着層から
成る内導体と、前記外周面に設けられた導電性物質の被
着層から成る外導体と、前記第２の端面において前記内
導体と前記外導体とを接続する導電性物質の被着層から
成る短絡導体とを備え、前記第１及び第２の端面は前記
貫通孔の延びる方向に対して直角に形成され、前記外周
面は第１及び第２の端面に対して直角に形成された誘電
体共振器において、 前記第２の端面に前記貫通孔から前記外周面に至る溝が
設けられ、 この溝の中に前記短絡導体が設けられていることを特徴
とする誘電体共振器。4. The first and second end surfaces, the outer peripheral surface, and the first and second end surfaces.
A dielectric having a through-hole extending from the end face of the second end face to the second end face, and a conductive material deposition layer provided in the through-hole.
And an electrically conductive material provided on the outer peripheral surface.
An outer conductor composed of a deposition layer, and a deposition layer of a conductive substance connecting the inner conductor and the outer conductor at the second end surface.
And a short-circuit conductor comprising:
The outer periphery is formed at right angles to the direction in which the through-hole extends.
A dielectric resonator having a surface formed at right angles to the first and second end surfaces, wherein a groove extending from the through hole to the outer peripheral surface is provided in the second end surface; A dielectric resonator comprising a conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6133580A JP3017917B2 (en) | 1994-05-23 | 1994-05-23 | Dielectric resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6133580A JP3017917B2 (en) | 1994-05-23 | 1994-05-23 | Dielectric resonator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07321516A JPH07321516A (en) | 1995-12-08 |
| JP3017917B2 true JP3017917B2 (en) | 2000-03-13 |
Family
ID=15108138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6133580A Expired - Lifetime JP3017917B2 (en) | 1994-05-23 | 1994-05-23 | Dielectric resonator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3017917B2 (en) |
-
1994
- 1994-05-23 JP JP6133580A patent/JP3017917B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07321516A (en) | 1995-12-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19991214 |