Series coupled filters where the first filter is a dielectric resonator filter with cross-coupling
US5841330A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1995 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Mar 23, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/2084
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A dielectric resonator filter operating in a magnetic dipole mode includes a plurality of dielectric resonators disposed in a plurality of dielectric resonator cavities. A plurality of coupling mechanism provide an in-line coupling factor between respective resonators of electrically adjacent dielectric resonator cavities. At least one cross-coupling device provides cross-coupling between respective resonators of non-adjacent dielectric resonator cavities. A magnitude and sign of the in-line coupling factors and the cross-coupling factor, provide a dielectric resonator filter, for which a desired amplitude and phase response can be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.