VERTICALLY COUPLED RESONATOR-TYPE ELASTIC WAVE FILTER AND ELASTIC WAVE FILTER

WIPO Patent Application WO/2022/070885

A1

Provided is a vertically coupled resonator-type elastic wave filter capable of increasing an amount of attenuation on the high-band side of the pass band without causing an increase in size.　A vertically coupled resonator-type elastic wave filter 1 includes a plurality of IDT electrodes 2-6 including a first IDT electrode and a second IDT electrode, and a first and a second reflector 7, 8. The IDT electrodes 2-6 each include a hot-side comb-shaped electrode 2a, 3b, 4a, 5b, 6a, and a ground-side comb-shaped electrode 2b, 3a, 4b, 5a, 6b. The hot-side comb-shaped electrodes 3b, 5b of the IDT electrodes 3, 5 corresponding to the first IDT electrode are electrically connected to at least one of the first and second reflectors 7, 8. The IDT electrodes 2, 6 corresponding to the second IDT electrode are disposed between the IDT electrodes 3, 5 and the first and second reflectors 7, 8. The hot-side comb-shaped electrodes 3b, 5b of the IDT electrodes 3, 5 are connected to one of an input end and an output end, and the hot-side comb-shaped electrodes 2a, 6a of the IDT electrodes 2, 6 are connected to the other of the input end and the output end.

HIRATSUKA YUYA (JP)

PCT/JP2021/033727

April 07, 2022

September 14, 2021

Click for automatic bibliography generation  

MURATA MANUFACTURING CO (JP)

H03H9/64; H03H9/145

WO2017221545A1	2017-12-28
WO2018117060A1	2018-06-28
WO2019123812A1	2019-06-27
WO2010150882A1	2010-12-29

JP2017118587A

2017-06-29

MIYAZAKI & METSUGI (JP)

View/Download PDF      PDF Help

Previous Patent: PRINTING DEVICE

Next Patent: WIRING DATA GENERATION DEVICE, DRAWING SYSTEM, AND WIRING DATA GENERATION METHOD