US4122418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite resonator
Assignee: Individual
•
Filing: 1976-05-04
•
Granted: 1978-10-24
•
Expires: 1996-05-04
Abstract
Abstract A composite resonator according to the invention is made of a combination of ferrite and dielectric, a combination of ferrite, dielectric and conductor or a combination of ferrite and conductor.
Inventors
- 👤 Tsukasa Nagao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:43
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/32; H01P1/38; H01P1/383; H01P1/387; H01P1/20; H01P1/213; H01P1/215; H01P7/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
106 words
A composite resonator comprising a composite made of a centrally disposed conductor puck, a solid dielectric layer disposed concentrically with and adjacent to said conductor puck and a ferrite layer disposed concentrically with and adjacent externally to said dielectric layer, and an external magnetic field source for applying an external magnetic field of predetermined intensity to said composite so that at least two circulation modes perpendicular to said magnetic field can coexist, said ferrite layer being a multi-layer composite made of a plurality of directly contacting concentric layers having mutually different saturation magnetizations for utilizing at least one subsidiary circulation mode produced in said multi-layer composite.
Claim 2
Dependent Claim
106 words
A composite resonator comprising a composite made of a centrally disposed conductor puck, a solid dielectric layer disposed concentrically with and adjacent to said conductor puck and a ferrite layer disposed concentrically with and adjacent externally to said dielectric layer, and an external magnetic field source for applying an external magnetic field of predetermined intensity to said composite so that at least two circulation modes perpendicular to said magnetic field can coexist, said ferrite layer being a multi-layer composite made of a plurality of directly contacting concentric layers having mutually different saturation magnetizations for utilizing at least one subsidiary circulation mode produced in said multi-layer composite.
Claim 3
Dependent Claim
36 words
A composite resonator as defined in claim 1, wherein said external magnetic field source applies a nonuniform external magnetic field to said multi-layer composite, said composite having a predetermined distribution of the anisotropic splitting factor k/μ.
Claim 4
Dependent Claim
92 words
A composite resonator comprising a composite made of a centrally disposed conductor puck and a ferrite layer disposed concentrically with and adjacent to said conductor puck, and an external magnetic field source for applying an external magnetic field of predetermined intensity to said composite so that at least two circulation modes perpendicular to said magnetic field can coexist, said ferrite layer being a multi-layer composite made of a plurality of directly contacting concentric layers having mutually different saturation magnetizations for utilizing at least one subsidiary circulation mode produced in said multi-layer composite.
Claim 5
Dependent Claim
92 words
A composite resonator comprising a composite made of a centrally disposed conductor puck and a ferrite layer disposed concentrically with and adjacent to said conductor puck, and an external magnetic field source for applying an external magnetic field of predetermined intensity to said composite so that at least two circulation modes perpendicular to said magnetic field can coexist, said ferrite layer being a multi-layer composite made of a plurality of directly contacting concentric layers having mutually different saturation magnetizations for utilizing at least one subsidiary circulation mode produced in said multi-layer composite.
Claim 6
Dependent Claim
37 words
A composite resonator as defined in claim 3, wherein said external magnetic field source applies a nonuniform external magnetic field to said composite and wherein said composite has a predetermined distribution of the anisotropic splitting factor k/μ.
Claim 7
Dependent Claim
57 words
A composite resonator comprising a ferrite composite made of at least three concentrically disposed ferrite layers, thin dielectric layers interposed between the respective layers of said ferrite composite to weaken electromagnetic coupling of adjacent ones of said ferrite layers, and an external magnetic field source for applying an external magnetic field of predetermined intensity to said composite.
Claim 8
Dependent Claim
57 words
A composite resonator comprising a ferrite composite made of at least three concentrically disposed ferrite layers, thin dielectric layers interposed between the respective layers of said ferrite composite to weaken electromagnetic coupling of adjacent ones of said ferrite layers, and an external magnetic field source for applying an external magnetic field of predetermined intensity to said composite.
Claim 9
Dependent Claim
29 words
A composite resonator as defined in claim 5, wherein the external magnetic field source selectively applies the magnetic field to said ferrite layers for switching the operating region thereof.
Claim 10
Dependent Claim
58 words
A composite resonator comprising a composite made of a centrally disposed dielectric puck and a ferrite layer disposed concentrically with and adjacent to said conductor puck, and an external magnetic field source for applying an external magnetic field of predetermined intensity to said composite so that at least two circulation modes perpendicular to said magnetic field can coexist.
Claim 11
Dependent Claim
58 words
A composite resonator comprising a composite made of a centrally disposed dielectric puck and a ferrite layer disposed concentrically with and adjacent to said conductor puck, and an external magnetic field source for applying an external magnetic field of predetermined intensity to said composite so that at least two circulation modes perpendicular to said magnetic field can coexist.
Claim 12
Dependent Claim
40 words
A composite resonator as defined in claim 7, wherein said ferrite material is a multi-layer composite made of a plurality of ferrites having mutually different saturation magnetizations for utilizing at least one subsidiary circulation mode produced in said multi-layer composite.
References Cited (Backward Citations)
US3355679A
Cited
US3350664A
Cited
US3350663A
Cited
US3422375A
Cited
US3714608A
Cited
US3851279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |