JPH03103611U - - Google Patents
Info
- Publication number
- JPH03103611U JPH03103611U JP1177690U JP1177690U JPH03103611U JP H03103611 U JPH03103611 U JP H03103611U JP 1177690 U JP1177690 U JP 1177690U JP 1177690 U JP1177690 U JP 1177690U JP H03103611 U JPH03103611 U JP H03103611U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic wave
- surface acoustic
- resonator
- wave resonator
- oscillator
- 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 16
- 230000010355 oscillation Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Description
第１図はこの考案の一実施例による２種類の発
振周波数をもつ弾性表面波発振器の構成を示す図
第２図は第１図の内の一部分詳細回路例を示す図
第３図は従来の弾性表面波発振器の構成を示す図
である。
図中１ａは弾性表面波共振器を構成している圧
電体基板、１ｂ，１ｃは圧電体基板上に構成され
たアルミニウム薄膜電極、２は弾性表面波共振器
と組み合わせて正帰還回路を構成するための増幅
器３は正帰還回路からの発振電力をとり出すため
の高周波電力分配器、４は弾性表面波発振器が外
部回路からの影響を受けなくするための緩衝増幅
器５はこの弾性表面波発振器の発振出力端子、６
ａ，６ｂは弾性表面波共振器を切換えるための共
振器切換器、７は共振器切換器６ａ，６ｂを制御
するための信号入力端子である。なお、図中同一
符号は、同一または相当部分を示す。
Figure 1 shows the configuration of a surface acoustic wave oscillator with two types of oscillation frequencies according to an embodiment of this invention. Figure 2 shows a detailed circuit example of a portion of Figure 1. Figure 3 shows a conventional surface acoustic wave oscillator. FIG. 2 is a diagram showing the configuration of a surface acoustic wave oscillator. In the figure, 1a is a piezoelectric substrate forming a surface acoustic wave resonator, 1b and 1c are aluminum thin film electrodes formed on the piezoelectric substrate, and 2 is a positive feedback circuit in combination with the surface acoustic wave resonator. Amplifier 3 is a high-frequency power divider for extracting oscillation power from the positive feedback circuit, and buffer amplifier 5 is a buffer amplifier 4 for preventing the surface acoustic wave oscillator from being influenced by external circuits. Oscillation output terminal, 6
A and 6b are resonator switchers for switching the surface acoustic wave resonators, and 7 is a signal input terminal for controlling the resonator switchers 6a and 6b. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
成し、弾性表面波共振器の共振周波数で発振させ
るようにした弾性表面波発振器において、同一の
圧電体基板上に構成された、共振周波数の異なる
複数の弾性表面波共振器と、上記弾性表面波共振
器の中から１つの弾性表面波共振器を選択する切
換え用ダイオードで構成された弾性表面波共振器
切換器を有することを特徴とする弾性表面波発振
器。 In a surface acoustic wave oscillator in which a positive feedback circuit is configured by a surface acoustic wave resonator and an amplifier, and the surface acoustic wave oscillator oscillates at the resonant frequency of the surface acoustic wave resonator, It is characterized by having a surface acoustic wave resonator switching device configured with a plurality of different surface acoustic wave resonators and a switching diode for selecting one surface acoustic wave resonator from the surface acoustic wave resonators. Surface acoustic wave oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1177690U JPH03103611U (en) | 1990-02-08 | 1990-02-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1177690U JPH03103611U (en) | 1990-02-08 | 1990-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03103611U true JPH03103611U (en) | 1991-10-28 |
Family
ID=31515294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1177690U Pending JPH03103611U (en) | 1990-02-08 | 1990-02-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03103611U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008119875A (en) * | 2006-11-09 | 2008-05-29 | Toppan Forms Co Ltd | Imprint forming device of reversible thermosensitive recording medium |
| JP2008119874A (en) * | 2006-11-09 | 2008-05-29 | Toppan Forms Co Ltd | Imprint forming device of reversible thermosensitive recording medium |
-
1990
- 1990-02-08 JP JP1177690U patent/JPH03103611U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008119875A (en) * | 2006-11-09 | 2008-05-29 | Toppan Forms Co Ltd | Imprint forming device of reversible thermosensitive recording medium |
| JP2008119874A (en) * | 2006-11-09 | 2008-05-29 | Toppan Forms Co Ltd | Imprint forming device of reversible thermosensitive recording medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3421109A (en) | Frequency selective amplifier and oscillator circuits employing piezoelectric elements to control frequency | |
| US4176030A (en) | Method for forming a quartz crystal vibrator | |
| JPH0213488B2 (en) | ||
| US4760352A (en) | Coupled resonator phase shift oscillator | |
| JPH03103611U (en) | ||
| JP3255248B2 (en) | Surface acoustic wave oscillator | |
| JPS62109406A (en) | Oscillation circuit | |
| JP2553281B2 (en) | Oscillation circuit with crystal oscillator | |
| JP3923263B2 (en) | Composite crystal oscillator and overtone crystal oscillator using the same | |
| US5721515A (en) | High stability single-port saw resonator oscillator | |
| JPH0310503A (en) | Voltage controlled oscillator | |
| JPH0326663Y2 (en) | ||
| JPH0353015U (en) | ||
| JPS6318073Y2 (en) | ||
| JPH09121231A (en) | Modulator | |
| JPH0737368Y2 (en) | Piezoelectric oscillation circuit | |
| JP2002217644A (en) | Crystal oscillator | |
| JPS6117614Y2 (en) | ||
| JPH01288005A (en) | Piezoelectric vibrator element | |
| JPS62193310U (en) | ||
| JPS6331611U (en) | ||
| JPH10215141A (en) | Ceramic vibrator | |
| JPS63283213A (en) | Voltage controlled oscillator | |
| JPH0365311U (en) | ||
| JPH04134914A (en) | Crystal vibrator and crystal oscillator employing the vibrator |