JPS61104605U - - Google Patents
Info
- Publication number
- JPS61104605U JPS61104605U JP18897884U JP18897884U JPS61104605U JP S61104605 U JPS61104605 U JP S61104605U JP 18897884 U JP18897884 U JP 18897884U JP 18897884 U JP18897884 U JP 18897884U JP S61104605 U JPS61104605 U JP S61104605U
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- filter circuit
- bandpass filter
- shielding
- frequency
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims 4
- 239000000758 substrate Substances 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000000644 propagated effect Effects 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Waveguides (AREA)
Description
第１図は本考案の一実施例にかかるＢ．Ｐ．Ｆ
回路の遮蔽構造を示す断面および平面図、第２図
は本考案の他の実施例を示す断面図、第３図、第
４図は従来の遮蔽構造を示す断面図である。
３……接地筐体、４……Ｂ．Ｐ．Ｆ回路、１０
，２０……遮蔽用金属カバー、１６……スルーホ
ール、１７……裏面接地用銅箔。
FIG. 1 shows a B.I. P. F
FIG. 2 is a cross-sectional view showing another embodiment of the present invention, and FIGS. 3 and 4 are cross-sectional views showing a conventional shielding structure. 3...Grounded housing, 4...B. P. F circuit, 10
, 20...Metal cover for shielding, 16...Through hole, 17...Copper foil for back surface grounding.
Claims (1)
筐体上に載置し、この基板表面上に形成されたマ
イクロストリツプ型バンドパスフイルタ回路を、
信号伝送路部分の開口幅が所望の伝送周波数より
も低い周波数成分が伝搬しないように設定されて
なる遮蔽用導体カバーにより覆つてなるバンドパ
スフイルタ回路の遮蔽構造において、前記裏面接
地用導体と前記遮蔽用導体カバー間を前記基板を
貫通して複数箇所において導通し、かつ複数の導
通間の間隔を所望の周波数よりも低い周波数成分
が伝搬しない間隔に設定したことを特徴とするバ
ンドパスフイルタ回路の遮蔽構造。 A substrate with a back grounding conductor attached to the back side is placed on a grounded casing, and a microstrip type bandpass filter circuit formed on the surface of this substrate is
In the shielding structure of the bandpass filter circuit, which is covered with a shielding conductor cover having an aperture width of the signal transmission path portion set so as to prevent the propagation of frequency components lower than a desired transmission frequency, the back surface grounding conductor and the A bandpass filter circuit characterized in that conduction is established between the shielding conductor covers at a plurality of points through the substrate, and the intervals between the plurality of conductions are set at intervals at which frequency components lower than a desired frequency are not propagated. shielding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18897884U JPS61104605U (en) | 1984-12-14 | 1984-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18897884U JPS61104605U (en) | 1984-12-14 | 1984-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61104605U true JPS61104605U (en) | 1986-07-03 |
Family
ID=30746442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18897884U Pending JPS61104605U (en) | 1984-12-14 | 1984-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61104605U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05259713A (en) * | 1992-03-10 | 1993-10-08 | Mitsubishi Electric Corp | Coaxial microstrip line converter |
| JP2016181832A (en) * | 2015-03-24 | 2016-10-13 | 富士通株式会社 | Electronic apparatus housing |
-
1984
- 1984-12-14 JP JP18897884U patent/JPS61104605U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05259713A (en) * | 1992-03-10 | 1993-10-08 | Mitsubishi Electric Corp | Coaxial microstrip line converter |
| JP2016181832A (en) * | 2015-03-24 | 2016-10-13 | 富士通株式会社 | Electronic apparatus housing |
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