Abstract
For the first time, a hybrid filter design approach based on the combination of Integrated Passive Device (IPD) and acoustic technologies is proposed to satisfy the new demands in 5G New Radio (NR) applications, where high frequency (above 3 GHz) and wide bandwidth (up to 900 MHz to date) are defined by the standards. The Band n77 filter is used as an extreme example to demonstrate the capability to achieve high operating frequency from 3.3 to 4.2 GHz, wide bandwidth of 900 MHz, high rejection of 36 dB at 200 MHz away, and low insertion loss of 2.5 dB.
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