Importance

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Abstract

Aspects are provided for radio frequency (RF) front end modules. The radio frequency front end modules comprises a common antenna node, an antenna switch matrix (ASM) comprising an ASM first signal terminal and at least two ASM second signal terminals, the ASM first signal terminal being coupled with the common antenna node; at least two RF micro acoustic filters coupleable to the common antenna node via the ASM. At least a first RF micro acoustic filter of the at least two RF micro acoustic filters comprises a micro acoustic pre-filter comprising a pre-filter first signal terminal and a pre-filter second signal terminal, the pre-filter first signal terminal coupled with the ASM; and a micro acoustic main-filter comprising a main-filter first signal terminal and a main-filter second signal terminal. The micro acoustic pre-filter and the micro acoustic main-filter being separated by a signal line coupling the pre-filter second signal terminal to the main-filter first signal terminal, the micro acoustic pre-filter being on a different die than the micro acoustic main-filter and being coupled by the signal line

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First Claim