Title:
DEVICE AND METHOD FOR VARIABLE SIGNAL ATTENUATION IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/075918
Kind Code:
A1
Abstract:
The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate than a 4th generation (4G) communication system such as Long-Term Evolution (LTE). The present disclosure provides a device for variable signal attenuation equipped in a stack-up structure inside an RFIC. The device for signal attenuation comprises: a first transmission line positioned on a first layer inside the RFIC; a second transmission line positioned on a second layer, which is adjacent to the first layer, and electromagnetically coupled to the first transmission line; and a control unit. The first transmission line comprises an impedance control unit on one side. The control unit can variably control the impedance control unit.
Inventors:
MINN DONGGYU (KR)
YOON YOUNGCHANG (KR)
KANG DAEHYUN (KR)
AN KYUHWAN (KR)
YOON YOUNGCHANG (KR)
KANG DAEHYUN (KR)
AN KYUHWAN (KR)
Application Number:
PCT/KR2020/014186
Publication Date:
April 22, 2021
Filing Date:
October 16, 2020
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H03H11/28; H03H1/00; H03H11/40
Foreign References:
| US9590591B1 | 2017-03-07 | |||
| KR20040054478A | 2004-06-25 | |||
| US20110148501A1 | 2011-06-23 | |||
| KR101625265B1 | 2016-05-27 | |||
| KR20190051842A | 2019-05-15 |
Other References:
See also references of EP 4047820A4
Attorney, Agent or Firm:
KWON, Hyuk-Rok et al. (KR)
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