JPH0480104U - - Google Patents
Info
- Publication number
- JPH0480104U JPH0480104U JP12460590U JP12460590U JPH0480104U JP H0480104 U JPH0480104 U JP H0480104U JP 12460590 U JP12460590 U JP 12460590U JP 12460590 U JP12460590 U JP 12460590U JP H0480104 U JPH0480104 U JP H0480104U
- Authority
- JP
- Japan
- Prior art keywords
- resonant
- line
- variable
- dielectric substrate
- close
- 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
- 239000000758 substrate Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
Landscapes
- Filters And Equalizers (AREA)
- Superheterodyne Receivers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Description
第１図は本考案の可変周波数帯域通過フイルタ
を示す図であり、同図Ａは表面、同図Ｂは裏面を
示す図である。第２図は第１図のフイルタの周波
数特性を示す図である。第３図は本考案の他の実
施例を示す図であり、同図Ａは表面、同図Ｂは裏
面を示す図である。第４図は共振線路を銅板等の
デイスクリート部品で構成したフイルタ回路の共
振線路部分を示す図であり、同図Ａは正面断面図
同図、同図Ｂは側断面図である。第５図は従来の
共振線路をストリツプ線路で構成したフイルタ回
路を示す図である。
２１……誘電体基板、２２，２３……共振線路
、２４……入力線路、２５……出力線路、２７…
…接地電極、３６，３７……可変容量ダイオード
、４０，４１……同調電圧供給線路（直流電圧供
給線路）。
FIG. 1 is a diagram showing the variable frequency band pass filter of the present invention, with FIG. 1A showing the front surface and FIG. 1B showing the back surface. FIG. 2 is a diagram showing the frequency characteristics of the filter of FIG. 1. FIG. 3 is a view showing another embodiment of the present invention, in which FIG. 3A shows the front side and FIG. 3B shows the back side. FIG. 4 is a diagram showing a resonant line portion of a filter circuit in which the resonant line is constructed of discrete components such as copper plates, and FIG. 4A is a front sectional view, and FIG. 4B is a side sectional view. FIG. 5 is a diagram showing a conventional filter circuit in which the resonant line is constructed of a strip line. 21... Dielectric substrate, 22, 23... Resonant line, 24... Input line, 25... Output line, 27...
...Ground electrode, 36, 37... Variable capacitance diode, 40, 41... Tuning voltage supply line (DC voltage supply line).
Claims (1)
力および出力線路と、該入力および出力線路に夫
々近接配置されると共に、互いに近接配置される
一対の共振線路と、該共振線路の一端に接続され
る可変容量ダイオードと、該可変容量ダイオード
に直流電圧を供給するための線路と、を備える可
変周波数帯域通過フイルタにおいて、 前記一対の共振線路が、端部が互いに離れる方
向に屈曲され、且つ、フイルタ特性上結合に必要
な長さの部分のみ近接配置されることを特徴とす
る可変周波数帯域通過フイルタ。[Claims for Utility Model Registration] A dielectric substrate, input and output lines formed on the dielectric substrate, and a pair of resonant lines arranged close to the input and output lines, respectively, and close to each other. a variable-capacitance diode connected to one end of the resonant line, and a line for supplying DC voltage to the variable-capacitance diode, wherein the pair of resonant lines have ends A variable frequency band pass filter characterized in that it is bent in a direction away from each other and that only the portions of length necessary for coupling due to filter characteristics are placed close to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12460590U JPH0480104U (en) | 1990-11-26 | 1990-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12460590U JPH0480104U (en) | 1990-11-26 | 1990-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0480104U true JPH0480104U (en) | 1992-07-13 |
Family
ID=31872245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12460590U Pending JPH0480104U (en) | 1990-11-26 | 1990-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0480104U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61224611A (en) * | 1985-03-29 | 1986-10-06 | Toshiba Corp | Dual tuning circuit |
| JPS62110301A (en) * | 1985-11-08 | 1987-05-21 | Matsushita Electric Ind Co Ltd | Tuning type band-pass filter |
-
1990
- 1990-11-26 JP JP12460590U patent/JPH0480104U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61224611A (en) * | 1985-03-29 | 1986-10-06 | Toshiba Corp | Dual tuning circuit |
| JPS62110301A (en) * | 1985-11-08 | 1987-05-21 | Matsushita Electric Ind Co Ltd | Tuning type band-pass filter |
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