US Patent Application 18343659. FILTER AND PREPARATION METHOD OF FILTER simplified abstract

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FILTER AND PREPARATION METHOD OF FILTER

Organization Name

HUAWEI TECHNOLOGIES CO., LTD.


Inventor(s)

Hangtian Hou of Shanghai (CN)


Bo Du of Shenzhen (CN)


Peng Liu of Shenzhen (CN)


Zongzhi Gao of Shanghai (CN)


FILTER AND PREPARATION METHOD OF FILTER - A simplified explanation of the abstract

  • This abstract for appeared for US patent application number 18343659 Titled 'FILTER AND PREPARATION METHOD OF FILTER'

Simplified Explanation

The abstract describes a type of filter and its preparation methods. The filter consists of a substrate, a series resonator, a parallel resonator, and a series branch. The series resonator and parallel resonator are stacked on the substrate and have different structures. The series branch connects the input and output ends of the filter.


Original Abstract Submitted

The present disclosure relates to filters and preparation methods of the filters. One example filter includes a substrate, a series resonator, a parallel resonator, and a series branch. The series resonator includes a first Bragg reflection layer and a first piezoelectric transduction structure that are sequentially stacked on the substrate. The parallel resonator includes a second Bragg reflection layer and a second piezoelectric transduction structure that are sequentially stacked on the substrate, and a structure of the first Bragg reflection layer is different from a structure of the second Bragg reflection layer. The series branch includes the series resonator, and the series branch is coupled between an input end of the filter and an output end of the filter.