Title:
フィルタおよびマルチフィルタ
Document Type and Number:
Japanese Patent JP7421541
Kind Code:
B2
Abstract:
A filter includes a ladder filter portion formed on a first piezoelectric substrate; and a multi-mode filter portion connected to the ladder filter portion and formed on a second piezoelectric substrate different from the first piezoelectric substrate. The ladder filter portion and the multi-mode filter portion constitute a single passband.
Inventors:
Tomonori Urata
Application Number:
JP2021502021A
Publication Date:
January 24, 2024
Filing Date:
February 18, 2020
Export Citation:
Assignee:
Continental Automotive GmbH
International Classes:
H03H9/64; H03H9/25
Domestic Patent References:
| JP2009509429A | ||||
| JP2017092945A | ||||
| JP2019004308A | ||||
| JP2018074539A |
Foreign References:
| WO2017073652A1 | ||||
| WO2018151147A1 | ||||
| WO2016208447A1 |
Attorney, Agent or Firm:
Yasuhiro Iijima
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