JPH0386628U - - Google Patents
Info
- Publication number
- JPH0386628U JPH0386628U JP14801889U JP14801889U JPH0386628U JP H0386628 U JPH0386628 U JP H0386628U JP 14801889 U JP14801889 U JP 14801889U JP 14801889 U JP14801889 U JP 14801889U JP H0386628 U JPH0386628 U JP H0386628U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic wave
- surface acoustic
- filter
- wave filter
- diagram showing
- 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
- 238000010897 surface acoustic wave method Methods 0.000 claims description 6
- 230000000737 periodic effect Effects 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第１図は本考案の一実施例の弾性表面波フイル
タの構成を示す図、第２図は第１図中のＡ−Ａ′
間及びＢ−Ｂ′間の拡大図、第３図は同実施例の
共振器型フイルタ単体のフイルタ特性を示す図、
第４図は同実施例の弾性表面波フイルタの特性を
示す図、第５図は従来の弾性表面波フイルタの構
成を示す平面図、第６図は第５図中のＣ−Ｃ′間
及びＤ−Ｄ′間の拡大図、第７図は従来の弾性表
面波フイルタのフイルタ特性を示す図である。
１……共振器型フイルタＡ、２……交叉指状電
極Ａ、３……共振器型フイルタＢ、４……交叉指
状電極Ｂ、５……共振器型フイルタＡのフイルタ
特性、６……共振器型フイルタＢのフイルタ特性
。
FIG. 1 is a diagram showing the configuration of a surface acoustic wave filter according to an embodiment of the present invention, and FIG. 2 is a diagram showing the configuration of a surface acoustic wave filter according to an embodiment of the present invention.
FIG. 3 is a diagram showing the filter characteristics of the single resonator filter of the same example.
FIG. 4 is a diagram showing the characteristics of the surface acoustic wave filter of the same embodiment, FIG. 5 is a plan view showing the configuration of the conventional surface acoustic wave filter, and FIG. FIG. 7, an enlarged view taken along line D-D', is a diagram showing filter characteristics of a conventional surface acoustic wave filter. DESCRIPTION OF SYMBOLS 1... Resonator type filter A, 2... Interdigital electrode A, 3... Resonator type filter B, 4... Interdigital electrode B, 5... Filter characteristics of resonator type filter A, 6... ...Filter characteristics of resonator type filter B.
Claims (1)
の周期間隔が異なる２つの共振器を縦続接続した
ことを特徴とする弾性表面波フイルタ。 A surface acoustic wave filter characterized in that two resonators arranged on a piezoelectric substrate and having interdigitated electrodes having different periodic intervals are connected in cascade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14801889U JPH0386628U (en) | 1989-12-21 | 1989-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14801889U JPH0386628U (en) | 1989-12-21 | 1989-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0386628U true JPH0386628U (en) | 1991-09-02 |
Family
ID=31694486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14801889U Pending JPH0386628U (en) | 1989-12-21 | 1989-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0386628U (en) |
-
1989
- 1989-12-21 JP JP14801889U patent/JPH0386628U/ja active Pending