Expert Advice: Tunable RF Filters: Pursuing the ‘Holy Grail’ of Acoustic Filter R&D

June 2008

Dr. Robert Aigner
Director - R&D Acoustic Technologies, TriQuint Semiconductor

A bulk acoustic wave (BAW) filter with ground-breaking, standard-setting performance would offer a tuning range far beyond today’s established outer limits. Can the center frequency tuning range of BAW filters be extended beyond 2% up to 5%, or perhaps even three to four times that amount?

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