Integrated multi-band bandpass filters based on dielectric resonators for mobile and other communication devices and applications
US10062949B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 29, 2015 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Mar 10, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/50
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Multi-band radio frequency communication is performed using an integrated multi-band bandpass filter implemented based on ring resonators, such as concentric dielectric ring resonators. By constructing the multi-band bandpass filter using concentric ring configurations, the print circuit board (PCB) real estate requirement of multiple filters operating at multiple frequency bands is significantly reduced. Various configurations of the multi-band bandpass filter based on the concentric ring resonators provide flexibility in the layout design and manufacturing of multi-band radios for mobile devices, such as compact smartphones. These configurations of the concentric ring resonators can include but are not limited: a slot-coupling configuration, a direct-coupling configuration, and an embedded direct-coupling configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.