Balanced filter device
US7868718B2 · kind B2 · utility
2Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2008 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Jun 3, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A balanced filter suitable for a reduction of the filter size. The balanced filter comprises strip-line resonators (SL1a, SL1b) constituting resonance electrodes coupled to an unbalanced terminal, strip-line resonators (SL3a, SL3b) coupled directly to balanced side terminals and strip-line resonators (SL2a, SL2b) coupled to the balanced side terminals through impedance elements (Z).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.