Title:
COMPOSITE FILTER AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/043225
Kind Code:
A1
Abstract:
Provided is a composite filter, wherein first to third filters are connected to any ports of a first hybrid that is constituted by 90° hybrid couplers. The first filter has a first passband. The second and third filters have passbands that do not overlap the first passband. An electrical interval from the first filter to the first hybrid is referred to as a first portion. A combination of an electrical interval from the second filter to the first hybrid and an electrical interval from the third filter to the first hybrid is referred to as a second portion. Here, at least one of the first portion and the second portion does not have a matching circuit having an inductor that is constituted by conductors of a multilayer substrate.
Inventors:
TAKIKAWA JUNICHIRO (JP)
Application Number:
PCT/JP2023/030096
Publication Date:
February 29, 2024
Filing Date:
August 22, 2023
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
H03H7/46
Domestic Patent References:
| WO2017203919A1 | 2017-11-30 |
Foreign References:
| US20180083591A1 | 2018-03-22 | |||
| JP2014511626A | 2014-05-15 |
Attorney, Agent or Firm:
IIJIMA, YASUHIRO (JP)
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