JPH0476710U - - Google Patents
Info
- Publication number
- JPH0476710U JPH0476710U JP12000490U JP12000490U JPH0476710U JP H0476710 U JPH0476710 U JP H0476710U JP 12000490 U JP12000490 U JP 12000490U JP 12000490 U JP12000490 U JP 12000490U JP H0476710 U JPH0476710 U JP H0476710U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic wave
- surface acoustic
- phase shifter
- wave resonator
- phase
- 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 11
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Description
第１図はこの考案の一実施例による弾性表面波
発振器の構成を示す図、第２図はこの考案の他の
実施例による弾性表面波発振器の構成を示す図、
第３図は従来の弾性表面波発振器の構成を示す図
、第４図ａ，ｂは弾性表面波共振器とこの発明の
位相器の温度特性を示す図である。図において、
１は弾性表面波共振器、２は位相器、２ａ，２ｂ
は第１、第２の位相部、３は増幅器、４は電力分
配器、５は緩衝増幅器、６は出力端子、７ａ，７
ｂはコンデンサ、８，８ａはコイル、９は温度制
御ヒータ、１０ａ，１０ｂは温度補償用コンデン
サである。なお、図中、同一符号は同一又は相当
部分を示す。
FIG. 1 is a diagram showing the configuration of a surface acoustic wave oscillator according to one embodiment of this invention, FIG. 2 is a diagram showing the configuration of a surface acoustic wave oscillator according to another embodiment of this invention,
FIG. 3 is a diagram showing the configuration of a conventional surface acoustic wave oscillator, and FIGS. 4a and 4b are diagrams showing the temperature characteristics of the surface acoustic wave resonator and the phase shifter of the present invention. In the figure,
1 is a surface acoustic wave resonator, 2 is a phase shifter, 2a, 2b
are first and second phase parts, 3 is an amplifier, 4 is a power divider, 5 is a buffer amplifier, 6 is an output terminal, 7a, 7
b is a capacitor, 8 and 8a are coils, 9 is a temperature control heater, and 10a and 10b are temperature compensation capacitors. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
帰還回路を構成し、前記位相器を発振周波数を初
期設定するための第１の位相部と温度補償用コン
デンサから成る第２の位相部とで構成し、 前記弾性表面波共振器と前記第２の位相部とを
温度制御ヒータに装着して構成した事を特徴とす
る弾性表面波発振器。 (2) 弾性表面波共振器と増幅器と位相器とで正
帰還回路を構成し、発振周波数を初期設定するた
めの前記位相器に温度補償用コンデンサを付加し
、 前記弾性表面波共振器と前記位相器とを温度制
御ヒータに装着して構成した事を特徴とする弾性
表面波発振器。[Claims for Utility Model Registration] (1) A positive feedback circuit is configured by a surface acoustic wave resonator, an amplifier, and a phase shifter, and a first phase section for initializing the oscillation frequency of the phase shifter and temperature compensation. and a second phase section consisting of a capacitor, and the surface acoustic wave oscillator is configured by mounting the surface acoustic wave resonator and the second phase section on a temperature controlled heater. (2) A positive feedback circuit is configured by a surface acoustic wave resonator, an amplifier, and a phase shifter, a temperature compensation capacitor is added to the phase shifter for initializing the oscillation frequency, and the surface acoustic wave resonator and the A surface acoustic wave oscillator characterized in that it is constructed by attaching a phase shifter to a temperature-controlled heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12000490U JPH0476710U (en) | 1990-11-16 | 1990-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12000490U JPH0476710U (en) | 1990-11-16 | 1990-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0476710U true JPH0476710U (en) | 1992-07-03 |
Family
ID=31867933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12000490U Pending JPH0476710U (en) | 1990-11-16 | 1990-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0476710U (en) |
-
1990
- 1990-11-16 JP JP12000490U patent/JPH0476710U/ja active Pending