ES370781A1 - Tuning means - Google Patents
Tuning meansInfo
- Publication number
- ES370781A1 ES370781A1 ES370781A ES370781A ES370781A1 ES 370781 A1 ES370781 A1 ES 370781A1 ES 370781 A ES370781 A ES 370781A ES 370781 A ES370781 A ES 370781A ES 370781 A1 ES370781 A1 ES 370781A1
- Authority
- ES
- Spain
- Prior art keywords
- inductive element
- parameters
- resonant circuit
- variable capacitor
- predetermined value
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
Landscapes
- Superheterodyne Receivers (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
A tunable resonant circuit arrangement consisting of: the impedance means supplying at least one resistive component; the means for supplying a first and a second inductive elements coupled through said impedance means; a variable tuning capacitor coupled through said first inductive element; the parameters of said first inductive element, said second inductive element and said variable capacitor having been selected so that they tune through a frequency band as the capacitance of said variable capacitor varies from a first predetermined value to a second predetermined value having further selected the parameters of said second inductive element together with the parameters of said resistive component so that when said variable capacitor is adjusted so that the tuning of said circuit changes from one frequency to another within said effective frequency band presented to said resonant circuit also changes direction so that said resonant circuit manifests a substantially constant bandwidth. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75660168A | 1968-08-30 | 1968-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES370781A1 true ES370781A1 (en) | 1971-07-01 |
Family
ID=25044214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES370781A Expired ES370781A1 (en) | 1968-08-30 | 1969-08-23 | Tuning means |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5037961B1 (en) |
| AT (1) | AT310268B (en) |
| BE (1) | BE736680A (en) |
| DE (1) | DE1944003A1 (en) |
| DK (1) | DK124790B (en) |
| ES (1) | ES370781A1 (en) |
| FR (1) | FR2016649A1 (en) |
| GB (1) | GB1276342A (en) |
| NL (1) | NL6913244A (en) |
| SE (1) | SE352499B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230073765A (en) | 2021-11-19 | 2023-05-26 | 경희대학교 산학협력단 | Selfpowered capacitive sensor based electret and Method for Manufacturing thereof |
| KR102711042B1 (en) | 2022-04-21 | 2024-09-26 | 경희대학교 산학협력단 | Selfpowered unit, energy harvester based 3D structure with low rigidity and electrostatic charge and Method for Manufacturing thereof |
| KR102707297B1 (en) | 2022-06-08 | 2024-09-19 | 경희대학교 산학협력단 | Selfpowered sensor for sensing multi-axis based 3D structure and Method for Manufacturing thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3040265A (en) * | 1960-07-18 | 1962-06-19 | Hewlett Packard Co | Transistor amplifiers having low input impedance |
-
1969
- 1969-07-28 BE BE736680D patent/BE736680A/xx unknown
- 1969-08-23 ES ES370781A patent/ES370781A1/en not_active Expired
- 1969-08-27 FR FR6929273A patent/FR2016649A1/fr not_active Withdrawn
- 1969-08-28 SE SE1191769A patent/SE352499B/xx unknown
- 1969-08-29 DK DK465769A patent/DK124790B/en unknown
- 1969-08-29 DE DE19691944003 patent/DE1944003A1/en active Pending
- 1969-08-29 GB GB4305869A patent/GB1276342A/en not_active Expired
- 1969-08-29 JP JP6855369A patent/JPS5037961B1/ja active Pending
- 1969-08-29 NL NL6913244A patent/NL6913244A/xx not_active Application Discontinuation
- 1969-09-01 AT AT835269A patent/AT310268B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE352499B (en) | 1972-12-27 |
| DK124790B (en) | 1972-11-20 |
| BE736680A (en) | 1969-12-31 |
| DE1944003A1 (en) | 1970-08-27 |
| AT310268B (en) | 1973-09-25 |
| GB1276342A (en) | 1972-06-01 |
| NL6913244A (en) | 1970-03-03 |
| JPS5037961B1 (en) | 1975-12-06 |
| FR2016649A1 (en) | 1970-05-08 |
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