JP3357970B2 - Coaxial filter and method of manufacturing the same - Google Patents
Coaxial filter and method of manufacturing the sameInfo
- Publication number
- JP3357970B2 JP3357970B2 JP18524295A JP18524295A JP3357970B2 JP 3357970 B2 JP3357970 B2 JP 3357970B2 JP 18524295 A JP18524295 A JP 18524295A JP 18524295 A JP18524295 A JP 18524295A JP 3357970 B2 JP3357970 B2 JP 3357970B2
- Authority
- JP
- Japan
- Prior art keywords
- center conductor
- input
- conductor
- dielectric
- outer conductor
- 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]
【発明の属する技術分野】本発明は同軸型フィルタおよ
びその製造方法に関し、特にマイクロ波周波数用の同軸
型フィルタおよびその製造方法に関する。The present invention relates to a coaxial filter and a method of manufacturing the same, and more particularly to a coaxial filter for microwave frequencies and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】図４は従来の同軸型フィルタの一例の断
面図、図５は同組立図である。2. Description of the Related Art FIG. 4 is a sectional view of an example of a conventional coaxial filter, and FIG.
【０００３】この同軸型フィルタはローパスフィルタ
で、外導体５０と中心導体５１とで構成される。また、
外導体５０は外導体ケース５０ａと、外導体カバー５０
ｂの上下２分割構造となっている。そして、中心導体５
１は径の小さい高インピーダンス部５２と、径の大きい
低インピーダンス部５３と、入出力部５４とで構成され
ている。この高インピーダンス部５２と低インピーダン
ス部５３とで夫々インダクタンスとキャパシタンスを実
現し、ローパスフィルタとしての機能を実現している。[0003] This coaxial filter is a low-pass filter, which comprises an outer conductor 50 and a center conductor 51. Also,
The outer conductor 50 includes an outer conductor case 50a and an outer conductor cover 50.
b has a vertically divided structure. And the center conductor 5
Reference numeral 1 denotes a high-impedance section 52 having a small diameter, a low-impedance section 53 having a large diameter, and an input / output section 54. The high impedance section 52 and the low impedance section 53 realize inductance and capacitance, respectively, and realize a function as a low-pass filter.
【０００４】そして、組み立てにはまず、中心導体５１
の入出力部５４にコネクタ６０を半田付けする。そし
て、それを外導体ケース５０ａに嵌め込み、外導体カバ
ー５０ｂを被覆する。[0004] Then, the center conductor 51 is first assembled.
The connector 60 is soldered to the input / output unit 54 of FIG. Then, it is fitted into the outer conductor case 50a to cover the outer conductor cover 50b.
【０００５】また、帯域外の減衰量を多く取るためには
ローパスフィルタの長さを長くする傾向にある。そこ
で、この場合には自重および振動等による中心導体５１
のたわみ防止のため、中心導体５１と外導体５０との間
に誘電体リング５５を入れることがある。図６にこの誘
電体リングの平面図および側面図を示す。In order to obtain a large amount of attenuation outside the band, the length of the low-pass filter tends to be increased. Therefore, in this case, the center conductor 51 due to its own weight and vibration is used.
In some cases, a dielectric ring 55 is inserted between the center conductor 51 and the outer conductor 50 in order to prevent deflection. FIG. 6 shows a plan view and a side view of the dielectric ring.
【０００６】同図に示すように、この誘電体リング５５
は円筒状に形成されている。[0006] As shown in FIG.
Is formed in a cylindrical shape.
【０００７】また、特開昭５６−７６６０２号公報に中
心導体と外導体との間に誘電体リングを挟持した低域通
過ろ波器が開示されている。Japanese Patent Application Laid-Open No. 56-76602 discloses a low-pass filter in which a dielectric ring is sandwiched between a center conductor and an outer conductor.
【０００８】[0008]
【発明が解決しようとする課題】しかし、中心導体５１
と外導体５０との間に誘電体リング５５を入れると、こ
の誘電体リング５５が円筒状であるため、誘電体リング
５５に中心導体５１を収納した後に、中心導体５１とコ
ネクタ６０とを半田付けすることは不可能であった。However, the center conductor 51
When the dielectric ring 55 is inserted between the dielectric ring 55 and the outer conductor 50, the dielectric ring 55 is cylindrical. After the center conductor 51 is housed in the dielectric ring 55, the center conductor 51 and the connector 60 are soldered. It was impossible to attach.
【０００９】このため、コネクタ６０を中心導体５１に
挿入し電気的接触させる構造を用いていた。For this reason, a structure has been used in which the connector 60 is inserted into the center conductor 51 to make electrical contact therewith.
【００１０】しかし、コネクタ６０と中心導体５１との
接触を良くするためには中心導体５１の入出力部５４を
すりかき状にする必要がある。図７はこの入出力部のす
りかき状部の平面図および側面図である。同図に示すよ
うに、入出力部５４の端部をすりかき状（たとえば、シ
ャープペンシルのチャック部のようなもの。）に形成し
ていた。However, in order to improve the contact between the connector 60 and the center conductor 51, it is necessary to make the input / output portion 54 of the center conductor 51 scraped. FIG. 7 is a plan view and a side view of the scraped portion of the input / output unit. As shown in the drawing, the end of the input / output unit 54 is formed in a scraped shape (for example, a chuck portion of a mechanical pencil).
【００１１】また、入出力部５４をすりかき状にするに
は、中心導体５１の材料としてリン青銅等のばね性を有
するものを使用する必要がある。しかし、このような材
料は高価でまた黄銅等の材料に比べて同じ加工でも加工
費が高かった。さらに、すりかき状に加工する工賃も高
価であった。Further, in order to make the input / output section 54 in a scraped shape, it is necessary to use a material having a spring property such as phosphor bronze as a material of the center conductor 51. However, such a material is expensive and the processing cost is higher than that of a material such as brass. Furthermore, the labor for scraping was also expensive.
【００１２】そこで、本発明の目的は中心導体とコネク
タとの半田付けが可能な誘電体リング付き同軸フィルタ
を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a coaxial filter with a dielectric ring that can be soldered to a center conductor and a connector.
【００１３】[0013]
【課題を解決するための手段】前記課題を解決するため
に本発明は、インピーダンス線路および入出力部からな
る中心導体と、この中心導体の外側に同軸状に設けられ
た外導体と、前記中心導体と前記外導体間に挟持される
誘電体とからなる同軸型フィルタであって、前記誘電体
の前記入出力部の位置する部分に切欠部が形成されるこ
とを特徴とする。In order to solve the above-mentioned problems, the present invention provides a center conductor comprising an impedance line and an input / output section, an outer conductor provided coaxially outside the center conductor, and A coaxial filter comprising a conductor and a dielectric sandwiched between the outer conductors, wherein a cutout is formed in a portion of the dielectric where the input / output unit is located.
【００１４】[0014]
【発明の実施の形態】誘電体の入出力部の位置する部分
に切欠部を形成することにより、中心導体を誘電体内に
収納した後にその切欠部を介して入出力部とコネクタと
を半田付けすることができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS By forming a notch in a portion where an input / output portion of a dielectric is located, a center conductor is housed in a dielectric and then the input / output portion and a connector are soldered through the notch. can do.
【００１５】以下、本発明の実施例について添付図面を
参照しながら説明する。図１は本発明に係る同軸型フィ
ルタの縦断面図、図２は中心導体の平面図である。な
お、従来例と同様の構成部分については同一番号を付
し、その説明を省略する。Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of a coaxial filter according to the present invention, and FIG. 2 is a plan view of a center conductor. Note that the same components as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted.
【００１６】この同軸型フィルタはローパスフィルタ
で、外導体５０と中心導体５１とで構成される。また、
外導体５０は外導体ケース５０ａと、外導体カバー５０
ｂの上下２分割構造となっている。そして、中心導体５
１は径の小さい高インピーダンス部５２と、径の大きい
低インピーダンス部５３と、入出力部５４とで構成され
ている。この高インピーダンス部５２と低インピーダン
ス部５３とで夫々インダクタンスとキャパシタンスを実
現し、ローパスフィルタとしての機能を実現している。This coaxial filter is a low-pass filter, which comprises an outer conductor 50 and a center conductor 51. Also,
The outer conductor 50 includes an outer conductor case 50a and an outer conductor cover 50.
b has a vertically divided structure. And the center conductor 5
Reference numeral 1 denotes a high-impedance section 52 having a small diameter, a low-impedance section 53 having a large diameter, and an input / output section 54. The high impedance section 52 and the low impedance section 53 realize inductance and capacitance, respectively, and realize a function as a low-pass filter.
【００１７】また、自重および振動等による中心導体５
１のたわみ防止のため、中心導体５１と外導体５０との
間に誘電体リング１を入れている。The center conductor 5 due to its own weight and vibration
The dielectric ring 1 is inserted between the center conductor 51 and the outer conductor 50 to prevent the deflection of the dielectric ring 1.
【００１８】図３は誘電体リングの平面図および側面図
である。同図に示すように、誘電体リング１には、誘電
体リング１内に入出力部５４を収納した場合に、誘電体
リング１の入出力部５４の位置する部分に切欠部１ａ，
１ｂを形成した。FIG. 3 is a plan view and a side view of the dielectric ring. As shown in the drawing, when the input / output unit 54 is housed in the dielectric ring 1, the notch 1 a is formed in the portion of the dielectric ring 1 where the input / output unit 54 is located.
1b was formed.
【００１９】従って、誘電体リング１内に入出力部５４
を収納した後に、この切欠部１ａ，１ｂを介して入出力
部５４とコネクタ６０とを半田付けすることができる。Therefore, the input / output unit 54 is provided in the dielectric ring 1.
After being stored, the input / output unit 54 and the connector 60 can be soldered through the notches 1a and 1b.
【００２０】次に、この同軸型フィルタの製造方法につ
いて説明する。Next, a method of manufacturing the coaxial filter will be described.
【００２１】（１）第１工程。誘電体リング１に中心導
体５１を挿通する。(1) First step. The center conductor 51 is inserted through the dielectric ring 1.
【００２２】（２）第２工程。中心導体５１を挿通した
誘電体リング１を外導体ケース５０ａに嵌め込む。(2) Second step. The dielectric ring 1 having the center conductor 51 inserted therein is fitted into the outer conductor case 50a.
【００２３】（３）第３工程。誘電体リング１の両側か
らコネクタ６０を差し込む。(3) Third step. The connectors 60 are inserted from both sides of the dielectric ring 1.
【００２４】（４）第４工程。誘電体リング１の切欠部
１ａ，１ｂを介して入出力部５４とコネクタ６０とを半
田付けする。(4) Fourth step. The input / output unit 54 and the connector 60 are soldered through the cutouts 1a and 1b of the dielectric ring 1.
【００２５】（５）第５工程。中心導体５１を外導体カ
バー５０ｂで被覆する。(5) Fifth step. The center conductor 51 is covered with the outer conductor cover 50b.
【００２６】（６）第６工程。外導体カバー５０ｂとコ
ネクタ６０とをビス止めする。（不図示）なお、切欠部
１ａ，１ｂ、または切欠部１ａ，１ｂを介して入出力部
５４にインピーダンス微調整用のビス等を設定すること
が可能である。(6) Sixth step. The outer conductor cover 50b and the connector 60 are screwed. (Not shown) It is possible to set a screw or the like for fine impedance adjustment in the input / output unit 54 through the cutouts 1a and 1b or the cutouts 1a and 1b.
【００２７】[0027]
【発明の効果】本発明によれば、中心導体と前記外導体
間に挟持される誘電体に切欠部を形成したため、この切
欠部を介して中心導体の入出力部とコネクタとを半田付
けすることができる。According to the present invention, since the notch is formed in the dielectric material sandwiched between the center conductor and the outer conductor, the input / output portion of the center conductor and the connector are soldered through the notch. be able to.
【００２８】従って、入出力部をすりかき状にする加工
が不要となり、また中心導体５１の材料として黄銅等の
比較的安価な材料を使用することができるため、加工
費、材料費ともに減少させることができる。Therefore, it is not necessary to make the input / output portion into a scraped shape, and a relatively inexpensive material such as brass can be used as the material of the center conductor 51. Therefore, both the processing cost and the material cost are reduced. be able to.
【図１】本発明に係る同軸型フィルタの縦断面図であ
る。FIG. 1 is a longitudinal sectional view of a coaxial filter according to the present invention.
【図２】同フィルタの中心導体の平面図である。FIG. 2 is a plan view of a center conductor of the filter.
【図３】同フィルタの誘電体リングの平面図および側面
図である。FIG. 3 is a plan view and a side view of a dielectric ring of the filter.
【図４】従来の同軸型フィルタの一例の縦面図である。FIG. 4 is a longitudinal view of an example of a conventional coaxial filter.
【図５】同フィルタの組立図である。FIG. 5 is an assembly view of the same filter.
【図６】同フィルタの誘電体リングの平面図および側面
図FIG. 6 is a plan view and a side view of a dielectric ring of the filter.
【図７】同フィルタの入出力部のすりかき状部の平面図
および側面図である。FIG. 7 is a plan view and a side view of a scraped portion of an input / output unit of the filter.
１ 誘電体リング １ａ，１ｂ 切欠部 ５０ 外導体 ５０ａ 外導体ケース ５０ｂ 外導体カバー ５１ 中心導体 ５２ 高インピーダンス部 ５３ 低インピーダンス部 ５４ 入出力部 DESCRIPTION OF SYMBOLS 1 Dielectric ring 1a, 1b Notch 50 Outer conductor 50a Outer conductor case 50b Outer conductor cover 51 Central conductor 52 High impedance part 53 Low impedance part 54 Input / output part
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01P 1/202 H01P 11/00 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) H01P 1/202 H01P 11/00
Claims (4)
なる中心導体と、この中心導体の外側に同軸状に設けら
れた外導体と、前記中心導体と前記外導体間に挟持され
る誘電体とからなる同軸型フィルタであって、前記誘電
体の前記入出力部の位置する部分に切欠部が形成される
ことを特徴とする同軸型フィルタ。1. A center conductor comprising an impedance line and an input / output unit, an outer conductor provided coaxially outside the center conductor, and a dielectric sandwiched between the center conductor and the outer conductor. A coaxial filter, wherein a cutout is formed in a portion of the dielectric body where the input / output unit is located.
を介して半田付けされることを特徴とする請求項１記載
の同軸型フィルタ。2. The coaxial filter according to claim 1, wherein a connector is soldered to said input / output unit via said cutout.
に形成されることを特徴とする請求項１または２記載の
同軸型フィルタ。3. The coaxial filter according to claim 1, wherein the outer conductor is formed so as to be separable into two members in a coaxial direction.
なる中心導体と、この中心導体の外側に同軸状に設けら
れ、同軸方向に２体に分離可能に形成される外導体と、
前記中心導体と前記外導体間に挟持され、前記入出力部
の位置する部分に切欠部が形成される誘電体とからな
り、 前記誘電体に前記中心導体を挿通する工程と、前記中心
導体を挿通した誘電体を２体に分離した前記外導体の片
方に固定する工程と、前記片方の外導体に固定された誘
電体に挿通された中心導体に前記切欠分を介してコネク
タを半田付けする工程と、この半田付け後の前記誘電体
に前記外導体の他方を被覆する工程とからなることを特
徴とする同軸型フィルタの製造方法。4. A center conductor comprising an impedance line and an input / output section, and an outer conductor provided coaxially outside the center conductor and formed so as to be separable into two members in a coaxial direction.
A dielectric material sandwiched between the center conductor and the outer conductor, the dielectric material having a cutout formed in a portion where the input / output unit is located; and Fixing the inserted dielectric to one of the outer conductors separated into two parts, and soldering the connector to the center conductor inserted through the dielectric fixed to the one outer conductor via the cutout portion And a step of coating the dielectric after soldering with the other of the outer conductors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18524295A JP3357970B2 (en) | 1995-07-21 | 1995-07-21 | Coaxial filter and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18524295A JP3357970B2 (en) | 1995-07-21 | 1995-07-21 | Coaxial filter and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0936606A JPH0936606A (en) | 1997-02-07 |
| JP3357970B2 true JP3357970B2 (en) | 2002-12-16 |
Family
ID=16167381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18524295A Expired - Lifetime JP3357970B2 (en) | 1995-07-21 | 1995-07-21 | Coaxial filter and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3357970B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277614A (en) * | 2019-06-08 | 2019-09-24 | 扬州江嘉科技有限公司 | A kind of medium coaxial low pass filter with transmission zero |
-
1995
- 1995-07-21 JP JP18524295A patent/JP3357970B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0936606A (en) | 1997-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4700155A (en) | Feedthrough noise eliminating filter having integrally stepped mounting portion | |
| US6152743A (en) | Coaxial connectors with integral electronic components | |
| MY125054A (en) | Coaxial interconnect devices and methods of making the same | |
| KR20030042025A (en) | Coaxial connector | |
| JPS5878376A (en) | Coaxial shield cable connector | |
| JP2586334B2 (en) | Contact type high frequency signal connection structure | |
| JP2003188609A (en) | Signal transmission board and joint structure using the same | |
| US6612870B1 (en) | Connector of the input/output type with grounded shielded cables and method of producing and of mounting such a connector | |
| JP3357970B2 (en) | Coaxial filter and method of manufacturing the same | |
| JPH09152447A (en) | Two end mobile type coaxial contact probe | |
| JP2689971B2 (en) | Coaxial terminal for connecting PCB and PCB connection structure | |
| JP2581915Y2 (en) | Dielectric filter | |
| JPS6322723Y2 (en) | ||
| JP2592561Y2 (en) | Filter connector | |
| JP2951894B2 (en) | High frequency plug | |
| JPS6010082Y2 (en) | Microwave equipment connection structure | |
| US5864283A (en) | Microwave frequency chip resistor assembly | |
| JP3046803B2 (en) | Dielectric filter | |
| JPH01218106A (en) | Sleeve antenna | |
| JP3000803B2 (en) | High frequency circuit | |
| JP3432732B2 (en) | Structure of L-shaped coaxial connector connection part of electronic equipment | |
| JP2915331B2 (en) | Changeover connector | |
| JPH0246605A (en) | Flat cable | |
| JPH0983176A (en) | Electronic apparatus | |
| JPS5941980U (en) | Connection structure between high frequency circuit cases |
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: 20020820 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081011 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081011 Year of fee payment: 6 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081011 Year of fee payment: 6 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091011 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091011 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101011 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111011 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121011 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131011 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term |