Title:
信号の位相バランスを最小化するためのＰＣＢ構造の広帯域フィルタ
Document Type and Number:
Japanese Patent JP6866454
Kind Code:
B2
Abstract:
To disclose a wide band filter with a PCB structure, capable of covering all of frequency bands of 4G and 5G in a mobile communication and minimizing a phase balance of a signal in an embodiment of the present invention.SOLUTION: A wide band filter to be disclosed, includes: a PCB substrate; and a housing for mounting the PCB substrate. The PCB substrate contains: a 4G input and output port; a 5G input and output port, an antenna input and output port; and a 4G filter part that has a function as a low pass filter (LPF) between the 4G input and output port and the antenna input and output port; and a 5G filter part that has a function as a high pass filter (HPF) between the 5G input and output port and the antenna input and output port. According to an embodiment, by removing a tuning step applying an influence to a phase delay characteristic by fixing and forming a formation of a coupling rail track for forming an LC resonator and a band of a filter (Filter) to the PCB substrate, productivity can be improved, and an initial cost can be reduced.SELECTED DRAWING: Figure 1
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Inventors:
Ho, Kwangmyung
Kim, Yongho
Lee, Dong Hak
Kim, Yongho
Lee, Dong Hak
Application Number:
JP2019195853A
Publication Date:
April 28, 2021
Filing Date:
October 29, 2019
Export Citation:
Assignee:
Innertron, Inc.
International Classes:
H01P1/213; H01P1/203; H01P7/08
Foreign References:
| US20110248793 | ||||
| US20110109402 |
Attorney, Agent or Firm:
Yamashita