Bridge-T reflectionless bandstop filter
US10097153B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2017 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Jun 23, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2007/013
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A bandstop filter is provided that includes an input port, a series bandpass resonator, a first capacitor, a bandstop resonator, a second capacitor and an output port. The combination of the first capacitor, the bandstop resonator and the second capacitor comprises a bandstop impedance magnitude and a bandstop impedance phase. The bandpass resonator impedance magnitude is substantially equal to the bandstop impedance magnitude. The bandpass resonator impedance phase is substantially 180° out of phase with the bandstop impedance phase. The series bandpass resonator, the first capacitor, the bandstop resonator and the second capacitor operate as a band stop for a predetermined frequency within the frequency band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.