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ELECTROACOUSTIC LATTICE FILTER AND RF FILTER MODULE COMPRISING A LATTICE FILTER
ELECTROACOUSTIC LATTICE FILTER AND RF FILTER MODULE COMPRISING A LATTICE FILTER
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机译:包括格子滤波器的电声格子滤波器和RF滤波器模块
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摘要
An RF filter (ELF) having an increased bandwidth is provided. The filter is an electroacoustic lattice filter having a diagonally-crossed shunt element (DCSE) connected between a first terminal of a second port (Tl, P2) and a second terminal of a first port (T2, PI). The shunt element may be an inductor, a further resonator or a combination thereof. The lattic filter may be a full lattice filter with four resonators per stage. Each resonator may be combined with a series or a parallel inductor. Series inductors of series and shunt resonators may be electromagnetically coupled.
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