JPH0394841U - - Google Patents
Info
- Publication number
- JPH0394841U JPH0394841U JP1990003223U JP322390U JPH0394841U JP H0394841 U JPH0394841 U JP H0394841U JP 1990003223 U JP1990003223 U JP 1990003223U JP 322390 U JP322390 U JP 322390U JP H0394841 U JPH0394841 U JP H0394841U
- Authority
- JP
- Japan
- Prior art keywords
- resonant coil
- frequency band
- oscillation
- circuit
- oscillation transistor
- 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
- 230000010355 oscillation Effects 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 14
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
- H03B5/124—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
- H03B5/1243—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
- H03B5/1262—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising switched elements
- H03B5/1265—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising switched elements switched capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/004—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
- H03B2200/0042—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor the capacitance diode being in the feedback path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/0056—Circuit elements of oscillators including a diode used for switching
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990003223U JPH0394841U (ko) | 1990-01-18 | 1990-01-18 | |
| GB9022514A GB2240227B (en) | 1990-01-18 | 1990-10-17 | Local oscillation circuit |
| DE4036866A DE4036866C2 (de) | 1990-01-18 | 1990-11-19 | Überlagerungsoszillatorschaltung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990003223U JPH0394841U (ko) | 1990-01-18 | 1990-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0394841U true JPH0394841U (ko) | 1991-09-27 |
Family
ID=11551448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990003223U Pending JPH0394841U (ko) | 1990-01-18 | 1990-01-18 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH0394841U (ko) |
| DE (1) | DE4036866C2 (ko) |
| GB (1) | GB2240227B (ko) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6194976B1 (en) * | 1999-03-29 | 2001-02-27 | Qualcomm Incorporated | Multiple band voltage controlled oscillator using impedance scaling |
| US6504443B1 (en) | 2000-05-17 | 2003-01-07 | Nec America, Inc., | Common anode varactor tuned LC circuit |
| US6466099B2 (en) * | 2001-01-03 | 2002-10-15 | Motorola, Inc. | Voltage controlled oscillator (VCO) in colpitts configuration |
| US6937195B2 (en) | 2001-04-11 | 2005-08-30 | Kyocera Wireless Corp. | Inverted-F ferroelectric antenna |
| US6690251B2 (en) | 2001-04-11 | 2004-02-10 | Kyocera Wireless Corporation | Tunable ferro-electric filter |
| JP2004536287A (ja) * | 2001-04-11 | 2004-12-02 | キョウセラ ワイヤレス コーポレイション | 低損失チューニング可能強誘電体デバイスおよび特性決定の方法 |
| US7746292B2 (en) | 2001-04-11 | 2010-06-29 | Kyocera Wireless Corp. | Reconfigurable radiation desensitivity bracket systems and methods |
| US7720443B2 (en) | 2003-06-02 | 2010-05-18 | Kyocera Wireless Corp. | System and method for filtering time division multiple access telephone communications |
| DE10337981A1 (de) * | 2003-08-19 | 2005-03-17 | Deutsche Thomson-Brandt Gmbh | Schaltbarer abstimmbarer Schwingkreis mit reduzierten parasitären Kapazitäten |
| WO2005125004A1 (ja) | 2004-06-18 | 2005-12-29 | Mitsubishi Denki Kabushiki Kaisha | 電圧制御発振器 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1121439A (en) * | 1965-08-03 | 1968-07-24 | Int Standard Electric Corp | Electronic tunable oscillator circuit |
| US3940714A (en) * | 1973-12-27 | 1976-02-24 | Alps Electric Co., Ltd. | AFC circuit with improved sensitivity |
| US4288875A (en) * | 1980-02-08 | 1981-09-08 | Rca Corporation | Controlled local oscillator with apparatus for extending its frequency range |
| DE3716878A1 (de) * | 1987-05-20 | 1988-12-15 | Philips Patentverwaltung | Zf-oszillator fuer hf-tuner |
-
1990
- 1990-01-18 JP JP1990003223U patent/JPH0394841U/ja active Pending
- 1990-10-17 GB GB9022514A patent/GB2240227B/en not_active Expired - Fee Related
- 1990-11-19 DE DE4036866A patent/DE4036866C2/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE4036866C2 (de) | 1996-10-02 |
| GB2240227A (en) | 1991-07-24 |
| DE4036866A1 (de) | 1991-07-25 |
| GB2240227B (en) | 1994-01-12 |
| GB9022514D0 (en) | 1990-11-28 |