Printed microstrip filter
US12431601B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Mar 20, 2044 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/62
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A printed film RF micros trip bandpass filter includes a plurality of resonators disposed on a dielectric substrate, first and second input/output (I/O) interfaces connected to corresponding first and second resonators flanking one or more intermediate resonators. Opposite ends of the one or more intermediate resonators are connected to a ground plane on an opposite side of the substrate by corresponding conductors. The intermediate resonators have an electrical wavelength that is one-half a wavelength of a center frequency of the filter and the first and second resonators can have an electrical wavelength that is nominally one-half the wavelength of the bandpass filter center frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.