JPH02134718U - - Google Patents
Info
- Publication number
- JPH02134718U JPH02134718U JP4406989U JP4406989U JPH02134718U JP H02134718 U JPH02134718 U JP H02134718U JP 4406989 U JP4406989 U JP 4406989U JP 4406989 U JP4406989 U JP 4406989U JP H02134718 U JPH02134718 U JP H02134718U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- resonant
- variable capacitance
- controlled oscillator
- voltage controlled
- 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
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は本考案の別の実施例を示す回路図、第３図は
従来の電圧制御発振器の一例を示す回路図である
。
１：負性抵抗発生回路、２：共振回路、３：可
変容量回路、４：ＦＥＴ、５，８，１８，２５，
２６，２７：抵抗、６，７，９，１１，１４，１
６，２０，２３，２４，２８，３０：容量（コン
デンサ）、１３：共振用コイル、１５：可変容量
ダイオード、１０：電源端子、１２：出力端子、
１７：直流バイアス端子、１９：高周波阻止用イ
ンダクタ、２１：出力回路、２９：トランジスタ
、３１：増幅用コイル。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram showing another embodiment of the present invention, and FIG. 3 is a circuit diagram showing an example of a conventional voltage controlled oscillator. 1: Negative resistance generation circuit, 2: Resonant circuit, 3: Variable capacitance circuit, 4: FET, 5, 8, 18, 25,
26, 27: resistance, 6, 7, 9, 11, 14, 1
6, 20, 23, 24, 28, 30: Capacitor (capacitor), 13: Resonant coil, 15: Variable capacitance diode, 10: Power supply terminal, 12: Output terminal,
17: DC bias terminal, 19: High frequency blocking inductor, 21: Output circuit, 29: Transistor, 31: Amplification coil.
Claims (1)
負性抵抗発生回路に結合された共振回路とこの共
振回路に対し、その共振周波数を可変すべく挿入
された可変容量ダイオードからなる可変容量回路
を具備した電圧制御発振器において、前記電圧制
御発振器に共振周波数の高調波を選択、増幅する
出力回路を結合したことを特徴とした電圧制御発
振器。 It is equipped with a negative resistance generating circuit using a transistor, a resonant circuit coupled to this negative resistance generating circuit, and a variable capacitance circuit consisting of a variable capacitance diode inserted to this resonant circuit in order to vary the resonance frequency. A voltage controlled oscillator, characterized in that the voltage controlled oscillator is coupled to an output circuit that selects and amplifies harmonics of a resonant frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4406989U JPH02134718U (en) | 1989-04-17 | 1989-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4406989U JPH02134718U (en) | 1989-04-17 | 1989-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02134718U true JPH02134718U (en) | 1990-11-08 |
Family
ID=31557040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4406989U Pending JPH02134718U (en) | 1989-04-17 | 1989-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02134718U (en) |
-
1989
- 1989-04-17 JP JP4406989U patent/JPH02134718U/ja active Pending
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