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Filters with various bandwidths at low intermediate frequency (IF) have been demonstrated using aluminum nitride (AlN) microresonator technology. Specifically, at 13 MHz, 6 kHz, and 25 kHz bandwidth filters were implemented using a single resonator topology, and 250 kHz and 500 kHz bandwidth filters were constructed via the parallel lattice topology using four sub-resonators and L-matching networks...
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