Waveguide filter
US6657520B2 · kind B2 · utility
9Cited by
9References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Nov 25, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/207
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An E-plane waveguide is provided comprising a housing having opposed walls defining a waveguide channel. The waveguide includes at least two elements spaced apart in a direction along the waveguide channel and disposed between and spaced from the opposed walls, and which define a resonant cavity therebetween with the waveguide channel. At least one of the walls has first and second protrusions which are spaced apart in a direction along the waveguide channel and protrude into the waveguide channel. The spacing between the protrusions is less than half a wavelength of the resonant frequency of the resonant cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.