Multiplexer device with first and second filtering devices connected to common port
US9391666B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2014 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Dec 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/706
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiplexer device includes at least one filtering device having at least one first band pass filter, connected to a common port via at least one series inductance, respectively, and only one or non-overlapping passbands, and at least one second filtering device, each of which includes at least one second band pass filter with a total of at least two second band pass filters are connected to the common port and having non-overlapping passbands, respectively. Combined series inductance transformed input impedance of the at least one first filtering device is inductive, when viewed from the common port, in the passbands of the at least two second band pass filters. Combined input impedance of the at least one second filtering device is substantially capacitive, when viewed from the common port, in a passband of the at least one first band pass filter in the at least one first filtering device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.