JPS6342722Y2 - - Google Patents

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Publication number
JPS6342722Y2
JPS6342722Y2 JP1638383U JP1638383U JPS6342722Y2 JP S6342722 Y2 JPS6342722 Y2 JP S6342722Y2 JP 1638383 U JP1638383 U JP 1638383U JP 1638383 U JP1638383 U JP 1638383U JP S6342722 Y2 JPS6342722 Y2 JP S6342722Y2
Authority
JP
Japan
Prior art keywords
case
resonators
contact
resonator
pair
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
Application number
JP1638383U
Other languages
Japanese (ja)
Other versions
JPS59121907U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1638383U priority Critical patent/JPS59121907U/en
Publication of JPS59121907U publication Critical patent/JPS59121907U/en
Application granted granted Critical
Publication of JPS6342722Y2 publication Critical patent/JPS6342722Y2/ja
Granted legal-status Critical Current

Links

Description

【考案の詳細な説明】 本考案は誘電体同軸共振器を用いた高周波機器
に関する。
[Detailed Description of the Invention] The present invention relates to a high frequency device using a dielectric coaxial resonator.

この種の高周波機器として、たとえばフイルタ
装置がある。さらに、フイルタ装置として、導電
性のケース内に複数の誘電体同軸共振器(以下、
共振器という)を対をなして並列配置したものが
ある。そして、各共振器の内導体どうしを静電的
に結合するとともに、各外導体をケースに電気的
に接続し、このケースを接地して、フイルタ特性
を得るようにしている。すなわち、共振器をフイ
ルタ装置の素子として使用する場合などには、そ
の装置の特性上、共振器の外導体とケースとを電
気的に充分接続することが必要となる。このた
め、従来、ケースと共振器との間に樹脂中に銀な
どの金属粉末を混入してなる導電性ペーストを介
在させたり、共振器をケースに半田付けしたりし
て、両者を電気的に接続するようにしている。し
かしながら前者の場合は、樹脂中に分散された金
属粉末の粗密や、導電性ペーストの厚さにより電
流経路が必らずしも一定せず、不安定であり、か
つ、導電率も悪く高価である。また、後者の場合
は半田と共振器の誘電体との熱膨張係数の差によ
つて外導体が剥離することもある。この不具合を
防止するため、第1図に示すように、ケースaと
共振器b1,b2との間にアース板c1,c2,c3,c4
設けたものも提案されている。しかしながら、こ
のアース板c1,c2,c3,c4は各対をなす共振器b1
b2に対しては個別に存在している。従つて、部品
数が多くなり、また各一対の共振器b1,b2ごとに
見れば、アース板c1,c2,c3,c4のケースaと共
振器b1,b2との接点p1,p2,p3…の数も多くな
る。このため接地抵抗が高くなつて帯域外減衰量
が大きくとれないなどフイルタ特性がなお充分に
発揮されない。
An example of this type of high frequency equipment is a filter device. Furthermore, as a filter device, multiple dielectric coaxial resonators (hereinafter referred to as
There are some types in which pairs of resonators (called resonators) are arranged in parallel. The inner conductors of each resonator are electrostatically coupled to each other, and the outer conductors of each resonator are electrically connected to the case, and the case is grounded to obtain filter characteristics. That is, when a resonator is used as an element of a filter device, it is necessary to sufficiently electrically connect the outer conductor of the resonator and the case due to the characteristics of the device. For this reason, conventional methods have been to interpose a conductive paste made of resin mixed with metal powder such as silver between the case and the resonator, or to solder the resonator to the case to connect the two electrically. I am trying to connect to. However, in the former case, the current path is not necessarily constant and unstable due to the density of the metal powder dispersed in the resin and the thickness of the conductive paste, and the conductivity is poor and expensive. be. Furthermore, in the latter case, the outer conductor may peel off due to the difference in thermal expansion coefficient between the solder and the dielectric of the resonator. In order to prevent this problem, it has been proposed to provide ground plates c 1 , c 2 , c 3 , and c 4 between case a and resonators b 1 and b 2 as shown in Figure 1. There is. However, this earth plate c 1 , c 2 , c 3 , c 4 is connected to each pair of resonators b 1 ,
It exists separately for b 2 . Therefore, the number of parts increases, and if we look at each pair of resonators b 1 and b 2 , case a of ground plates c 1 , c 2 , c 3 , and c 4 and case a of resonators b 1 and b 2 The number of contact points p 1 , p 2 , p 3 . . . also increases. For this reason, the grounding resistance becomes high and the out-of-band attenuation cannot be made large, so that the filter characteristics are still not fully exhibited.

本考案は上記の問題点に鑑みてなされたもので
あつて、共振器とケースとの電気的接続が確実で
安定しており、かつ、接地抵抗も少なく、また、
部品数も少なくて組立てが簡単で、フイルタ装置
などの特性が充分発揮できるようにすることを目
的とする。
The present invention was developed in view of the above-mentioned problems, and the electrical connection between the resonator and the case is reliable and stable, and the grounding resistance is low.
The purpose is to have a small number of parts, easy assembly, and to be able to fully demonstrate the characteristics of a filter device, etc.

本考案は、このような目的を達成するため、ば
ね弾性を有する導電性の接触子の両側端部を各々
対をなす共振器の各外導体に、また、その接触子
の中央部をケースにそれぞれ接触するようにして
いる。
In order to achieve this purpose, the present invention connects both ends of a conductive contact with spring elasticity to each outer conductor of a pair of resonators, and connects the center of the contact to a case. We are trying to make contact with each other.

以下、本考案を図面に示す実施例に基づいて詳
細に説明する。なお、この実施例においては高周
波機器としてフイルタ装置に適用した場合につい
て説明する。
Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. In this embodiment, a case will be described in which the present invention is applied to a filter device as a high frequency device.

第2図はフイルタ装置の断面図、第3図は第2
図の−線に沿う断面図である。この実施例の
フイルタ装置1は上蓋2aと下蓋2bとからなる
ジユラルミンなどでできた導電性のケース2と、
このケース2内に収容された複数個の共振器3
a,3b…とを備える。これらの共振器3a,3
b…は、各対をなして、第2図上、紙面に直交し
て並列に配置される。そこで、今一対の共振器3
a,3bについてさらに、説明すると、これらの
各共振器3a,3bは、外形が円筒状の1/4波長
型のもので、セラミツクなどの円筒状誘電体4
a,4bに外導体5a,5bと内導体6a,6b
とが形成されている。そして、この両導体5a,
6a,5b,6bは一端部を互いに短絡して短絡
端7a,7bとし、他端部を開放端8a,8bと
している。そして、この開放端8a,8bが互い
に対向している。さらに、この開放端8a,8b
の間に各共振器3a,3bの並置方向に延びる誘
電体基板10が配置されている。この誘電体基板
10上には電極11が形成され、この電極11に
各共振器3a,3bの内導体6a,6bがターミ
ナル13a,13bを介して接続されている。こ
れにより、各共振器3a,3bは互いに静電的に
結合される。一方、共振器3a,3bとケース2
との間には上下それぞれにばね弾性を有する導電
性の接触子15,16が介設されている。両接触
子15,16は同一形状を有する。従つて、一つ
の接触子15についてみると、この接触子15
は、第4図および第5図に示すように、断面円弧
状の中央部15aの両側から、それぞれこの中央
部15aに直交して、所定間隔l,l…ごとにく
し状の側端部15b,15b…15c,15c…
を互いに対向して突設して形成される。また、上
記間隔l,l…は各共振器3a,3b…の並置方
向の間隔に対応している。従つて、両接触子1
5,16がケース2内に配置された状態において
は、両接触子15,16はケース2と共振器3
a,3bとに拘束されて弾性変形し、各一対の共
振器3a,3bに対して、接触子15,16の両
側端部15b,15c,16b,16cがそれぞ
れ、その外導体5a,5bの外形に沿つて接触す
る。また、接触子15,16の中央部15a,1
6aがケース2に接触する。すなわち各接触子1
5,16の各一対の共振器3a,3bに対する接
点は3か所だけで少なく、しかも、接触子15,
16は各共振器3a,3bの開放端8a,8b側
から、その外導体5a,5bに接触するので、外
導体5a,5bの電流は直ちに相手側の外導体5
b,5aに流れ、また接触子15,16を介して
ケース2にも流れ、接地されることになる。
Figure 2 is a cross-sectional view of the filter device, and Figure 3 is a cross-sectional view of the filter device.
FIG. 3 is a sectional view taken along the - line in the figure. The filter device 1 of this embodiment includes a conductive case 2 made of duralumin or the like, which includes an upper cover 2a and a lower cover 2b.
A plurality of resonators 3 housed in this case 2
a, 3b... These resonators 3a, 3
b... are arranged in pairs in parallel, perpendicular to the plane of the paper in FIG. Therefore, now a pair of resonators 3
To further explain about a and 3b, each of these resonators 3a and 3b is a 1/4 wavelength type with a cylindrical outer shape, and is made of a cylindrical dielectric material 4 such as ceramic.
a, 4b with outer conductors 5a, 5b and inner conductors 6a, 6b
is formed. Then, both conductors 5a,
6a, 5b, 6b have one end short-circuited to each other to form short-circuited ends 7a, 7b, and the other end to form open ends 8a, 8b. The open ends 8a and 8b are opposed to each other. Furthermore, these open ends 8a, 8b
A dielectric substrate 10 extending in the direction in which the resonators 3a and 3b are juxtaposed is arranged between them. An electrode 11 is formed on this dielectric substrate 10, and inner conductors 6a, 6b of each resonator 3a, 3b are connected to this electrode 11 via terminals 13a, 13b. Thereby, each resonator 3a, 3b is electrostatically coupled to each other. On the other hand, resonators 3a and 3b and case 2
Conductive contacts 15 and 16 having spring elasticity are interposed between the upper and lower sides, respectively. Both contacts 15, 16 have the same shape. Therefore, when looking at one contact 15, this contact 15
As shown in FIGS. 4 and 5, comb-shaped side end portions 15b are formed at predetermined intervals l, l, etc. from both sides of the central portion 15a having an arcuate cross-section, perpendicularly to the central portion 15a. , 15b...15c, 15c...
are formed by protruding from each other and facing each other. Moreover, the above-mentioned intervals l, l... correspond to the intervals in the juxtaposition direction of the respective resonators 3a, 3b.... Therefore, both contacts 1
5 and 16 are placed in the case 2, both contacts 15 and 16 are connected to the case 2 and the resonator 3.
a, 3b and are elastically deformed, and for each pair of resonators 3a, 3b, both ends 15b, 15c, 16b, 16c of the contacts 15, 16 are restrained by the outer conductors 5a, 5b, respectively. Contact along the contour. Moreover, the center portions 15a, 1 of the contacts 15, 16
6a contacts case 2. That is, each contact 1
There are only three contact points for each pair of resonators 3a and 3b, 5 and 16, and the number of contacts 15 and 16 is small.
16 contacts the outer conductor 5a, 5b of each resonator 3a, 3b from the open end 8a, 8b side, so the current in the outer conductor 5a, 5b immediately flows to the other outer conductor 5.
b, 5a, and also flows to the case 2 via the contacts 15, 16, and is grounded.

なお、本例においては接触子15,16を上下
2か所に配置しているが一方を省略することもで
きる。
In this example, the contacts 15 and 16 are arranged at two locations, upper and lower, but one may be omitted.

また、本例はフイルタ装置について説明した
が、共振器を用いた他の高周波機器に対しても本
例を適用できるのは勿論である。
Further, although this example has been described with respect to a filter device, it goes without saying that this example can also be applied to other high frequency devices using resonators.

以上のように、本考案によれば、ばね弾性を有
する導電性の接触子の両側端部をそれぞれ対をな
す共振器の各外導体に、また接触子の中央部を共
振器を収容する導電性のケースにそれぞれ接触す
るようにしたので、電気系路がより安定し、か
つ、電極の剥離などの恐れもない。また、共振器
とケース間の接地抵抗も少なくなり、フイルタ装
置などに適用した場合には、その装置の特性が充
分発揮される。さらに、部品数も少ないので組立
ても簡単となるなどの優れた効果が得られる。
As described above, according to the present invention, both ends of a conductive contact having spring elasticity are connected to each outer conductor of a pair of resonators, and the center part of the contact is connected to a conductive conductor housing a resonator. Since the electrodes are in contact with the respective cases, the electrical path becomes more stable and there is no fear of the electrodes peeling off. Furthermore, the grounding resistance between the resonator and the case is reduced, and when applied to a filter device, etc., the characteristics of the device can be fully demonstrated. Furthermore, since the number of parts is small, it is easy to assemble, and other excellent effects can be obtained.

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

第1図は従来例を、第2図ないし第5図は本考
案の実施例をそれぞれ示し、第1図および第2図
はフイルタ装置の断面図、第3図は第2図の−
線に沿う断面図、第4図は接触子の平面図、第
5図は第4図の−線に沿う断面図である。 1……高周波機器(フイルタ装置)、2……ケ
ース、3a,3b……誘電体同軸共振器、5a,
5b……外導体、15,16……接触子、15
a,16a……中央部、15b,15c,16
b,16c……側端部。
Fig. 1 shows a conventional example, Figs. 2 to 5 show embodiments of the present invention, Figs. 1 and 2 are cross-sectional views of the filter device, and Fig. 3 shows the -
4 is a plan view of the contact, and FIG. 5 is a sectional view taken along the line - in FIG. 4. 1... High frequency equipment (filter device), 2... Case, 3a, 3b... Dielectric coaxial resonator, 5a,
5b... Outer conductor, 15, 16... Contact, 15
a, 16a... central part, 15b, 15c, 16
b, 16c... side end portion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 導電性のケースと、このケース内に収容される
少なくとも一対の誘電体同軸共振器とを備え、こ
の誘電体同軸共振器とケースとの間にはばね弾性
を有する導電性の接触子が介設され、この接触子
は両側端部が各々前記対をなす誘電体同軸共振器
の各外導体に、中央部が前記ケースにそれぞれ接
触していることを特徴とする誘電体同軸共振器を
用いた高周波機器。
The device includes a conductive case and at least a pair of dielectric coaxial resonators housed within the case, and a conductive contact having spring elasticity is interposed between the dielectric coaxial resonator and the case. This contactor uses a dielectric coaxial resonator characterized in that both end portions are in contact with the outer conductors of the pair of dielectric coaxial resonators, and the center portion is in contact with the case. High frequency equipment.
JP1638383U 1983-02-07 1983-02-07 High frequency equipment using dielectric coaxial resonators Granted JPS59121907U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1638383U JPS59121907U (en) 1983-02-07 1983-02-07 High frequency equipment using dielectric coaxial resonators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1638383U JPS59121907U (en) 1983-02-07 1983-02-07 High frequency equipment using dielectric coaxial resonators

Publications (2)

Publication Number Publication Date
JPS59121907U JPS59121907U (en) 1984-08-16
JPS6342722Y2 true JPS6342722Y2 (en) 1988-11-09

Family

ID=30147670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1638383U Granted JPS59121907U (en) 1983-02-07 1983-02-07 High frequency equipment using dielectric coaxial resonators

Country Status (1)

Country Link
JP (1) JPS59121907U (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2539828Y2 (en) * 1991-04-12 1997-07-02 株式会社村田製作所 Dielectric filter

Also Published As

Publication number Publication date
JPS59121907U (en) 1984-08-16

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