CPC H03H 9/706 (2013.01) [H03H 9/0009 (2013.01); H03H 9/0014 (2013.01); H03H 9/02007 (2013.01); H03H 9/105 (2013.01); H03H 9/1092 (2013.01); H03H 9/171 (2013.01); H03H 9/205 (2013.01); H03H 9/25 (2013.01); H03H 9/54 (2013.01); H03H 9/542 (2013.01); H03H 9/568 (2013.01); H03H 9/64 (2013.01); H03H 9/6483 (2013.01); H03H 9/703 (2013.01); H03H 9/72 (2013.01); H03H 9/725 (2013.01); H04L 5/14 (2013.01)] | 20 Claims |
11. A method of processing a radio frequency signal, the method comprising:
generating a filtered transmit radio frequency signal with transmit filter having a first stage serially connected with at least a second stage, the first stage including a first plurality of acoustic wave resonators of a first type, the second stage including a second plurality of acoustic wave resonators of a second type that is different than the first type, the second plurality of acoustic wave resonators having a higher suppression of a second harmonic of a radio frequency signal than the first plurality of acoustic wave resonators;
outputting the filtered transmit radio signal to a common node; and
filtering a receive radio frequency signal with a receive filter coupled to the common node to output a single-ended radio frequency signal.
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