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US09203129B2 Increasing the minimum rejection bandwidth of a YIG-tuned notch filter using a shunt YIG resonator 有权
使用分流YIG谐振器增加YIG调谐陷波滤波器的最小抑制带宽

Increasing the minimum rejection bandwidth of a YIG-tuned notch filter using a shunt YIG resonator
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.
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