Increasing the minimum rejection bandwidth of a YIG-tuned notch filter using a shunt YIG resonator
US9203129B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Oct 1, 2012 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Feb 6, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2007/013
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A Yttrium Iron Garnet (YIG) tuned band reject filter using one or more Shunt YIG resonators provides for much wider minimum rejection bandwidths without increasing maximum 3 db bandwidths or spurious response. Various configurations of a tunable shunt YIG tuned band reject filter achieves a wide rejection bandwidth at the low end of the tuning range while keeping the maximum 3 db bandwidth, normally occurring at the high end of the tuning range, to a minimum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.