Microwave resonator
US5712605A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1994 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Sep 29, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/1864
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A simplified apparatus and a design method for providing microwave resonators having high Q factors. The apparatus includes a resonant microwave cavity having three mutually orthogonal dimensions and a low loss dielectric body substantially enclosing each dimension of the resonant microwave cavity. To further increase Q-factor, the apparatus of the invention preferably includes a plurality of resonant microwave cavities and a plurality of low loss dielectric bodies each substantially enclosing a respective one of the microwave resonant cavities. In some embodiments the low loss dielectric bodies are arranged in a stack. In other embodiments the low loss dielectric bodies are concentrically arranged. The design method includes selecting a resonant mode frequency and a height dimension of a microwave resonant cavity, extending radial bessel function solutions along a radius of the cavity to determine radial locations of electric field nulls of a resonant mode of microwaves, and substantially positioning concentric dielectric tube portions of the bodies at the radial locations of the electric field nulls. Similarly, the method of the invention includes extending cavity harmonic functi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.