LADDER FILTER INCLUDING ADDITIONAL RESONATOR FOR HIGHER ATTENUATION
A radio frequency ladder filter comprises a plurality of series bulk acoustic wave (BAW) resonators electrically connected in series between an input and an output, a plurality of shunt BAW resonators electrically connected between nodes between adjacent ones of the plurality of series BAW resonator...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A radio frequency ladder filter comprises a plurality of series bulk acoustic wave (BAW) resonators electrically connected in series between an input and an output, a plurality of shunt BAW resonators electrically connected between nodes between adjacent ones of the plurality of series BAW resonators and ground, and at least one parallel BAW resonator electrically connected in parallel with one of the plurality of series BAW resonators to increase attenuation in a lower side of a stop band of the radio frequency ladder filter. |
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