Integrated filter balun
US6803835B2 · kind B2 · utility
79Cited by
26References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2001 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Aug 30, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A component that includes a first structure that is integrated with a second structure. The first structure is a lumped balanced to unbalanced circuit (balun) and the second structure is a resonator-based filter. The function of the balun is to move a signal from a differential form to a single ended form or from a single ended form to a differential form. The component has an area that is comparable to the area needed to implement the balun alone. However, the component now provides a filter function. Preferably, the substrate of the first structure also acts as a substrate for the second structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.