Frequency tunable reflectionless bandstop filter using L-resonators
US10243247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2017 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Jul 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/542
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A bandstop filter includes a coupled line bandstop filter, a capacitor and a resistor. The coupled line bandstop filter includes a transmission line element and a shaped transmission line element. The shaped transmission line element includes a coupled line element disposed so as to electromagnetically couple with the transmission line element, and a second line element disposed so as not to be parallel with the transmission line element. The capacitor is electrically connected to the coupled line element. A portion of the received oscillating signal includes a bandstop frequency. Physical attributes of the coupled line bandstop filter, the capacitor and the resistor are such that the portion of the received oscillating signal including the bandstop frequency is attenuated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.