GB1416474A - Tunable ferrimagnetic resonant circuit arrangement - Google Patents
Tunable ferrimagnetic resonant circuit arrangementInfo
- Publication number
- GB1416474A GB1416474A GB1307573A GB1307573A GB1416474A GB 1416474 A GB1416474 A GB 1416474A GB 1307573 A GB1307573 A GB 1307573A GB 1307573 A GB1307573 A GB 1307573A GB 1416474 A GB1416474 A GB 1416474A
- Authority
- GB
- United Kingdom
- Prior art keywords
- local oscillator
- frequency
- circuits
- discriminator
- generator
- 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
- 230000005293 ferrimagnetic effect Effects 0.000 title abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 230000005291 magnetic effect Effects 0.000 abstract 3
- 239000002223 garnet Substances 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- SBXWKPKGSPXIKG-UHFFFAOYSA-N gallium yttrium Chemical compound [Ga].[Y] SBXWKPKGSPXIKG-UHFFFAOYSA-N 0.000 abstract 1
- MTRJKZUDDJZTLA-UHFFFAOYSA-N iron yttrium Chemical compound [Fe].[Y] MTRJKZUDDJZTLA-UHFFFAOYSA-N 0.000 abstract 1
- JXGGISJJMPYXGJ-UHFFFAOYSA-N lithium;oxido(oxo)iron Chemical compound [Li+].[O-][Fe]=O JXGGISJJMPYXGJ-UHFFFAOYSA-N 0.000 abstract 1
- 238000011045 prefiltration Methods 0.000 abstract 1
- 238000010408 sweeping Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/215—Frequency-selective devices, e.g. filters using ferromagnetic material
- H01P1/218—Frequency-selective devices, e.g. filters using ferromagnetic material the ferromagnetic material acting as a frequency selective coupling element, e.g. YIG-filters
-
- 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
- H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
- H03B5/1882—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a magnetic-field sensitive resonator, e.g. a Yttrium Iron Garnet or a magnetostatic surface wave resonator
- H03B5/1888—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a magnetic-field sensitive resonator, e.g. a Yttrium Iron Garnet or a magnetostatic surface wave resonator the active element in the amplifier being a semiconductor device
-
- 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
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
- H03B2201/0225—Varying the frequency of the oscillations by electronic means the means being associated with an element comprising distributed inductances and capacitances
- H03B2201/0241—Varying the frequency of the oscillations by electronic means the means being associated with an element comprising distributed inductances and capacitances the element being a magnetically variable element, e.g. an Yttrium Iron Garnet
-
- 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
- H03B23/00—Generation of oscillations periodically swept over a predetermined frequency range
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23689572A | 1972-03-22 | 1972-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1416474A true GB1416474A (en) | 1975-12-03 |
Family
ID=22891443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1307573A Expired GB1416474A (en) | 1972-03-22 | 1973-03-19 | Tunable ferrimagnetic resonant circuit arrangement |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2177033B1 (enExample) |
| GB (1) | GB1416474A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114696052A (zh) * | 2022-06-01 | 2022-07-01 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | 带磁路气隙场微调结构的磁调谐滤波器及调试方法 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2561448B1 (fr) * | 1984-03-19 | 1986-09-26 | Enertec | Dispositif de controle de la frequence d'un filtre a resonance gyromagnetique |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3435346A (en) * | 1966-05-31 | 1969-03-25 | Sylvania Electric Prod | Electronically tunable receiver |
-
1973
- 1973-03-19 GB GB1307573A patent/GB1416474A/en not_active Expired
- 1973-03-22 FR FR7310260A patent/FR2177033B1/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114696052A (zh) * | 2022-06-01 | 2022-07-01 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | 带磁路气隙场微调结构的磁调谐滤波器及调试方法 |
| CN114696052B (zh) * | 2022-06-01 | 2022-09-13 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | 带磁路气隙场微调结构的磁调谐滤波器及调试方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2177033A1 (enExample) | 1973-11-02 |
| FR2177033B1 (enExample) | 1977-12-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19930318 |