Title:
ELECTRONIC DEVICE COMPRISING AMPLIFIER CIRCUIT FOR PROCESSING WIDEBAND RF SIGNAL
Document Type and Number:
WIPO Patent Application WO/2021/141464
Kind Code:
A1
Abstract:
Disclosed is an electronic device comprising a wireless communication circuit for generating an RF signal, an amplifier circuit that is electrically connected to the wireless communication circuit and amplifies the RF signal, and an antenna connected to the amplifier circuit. The amplifier circuit may comprise: a first amplifier; a second amplifier; a first transmission path connected to an output terminal of the first amplifier and the antenna; a second transmission path connected to an output terminal of the second amplifier and the first transmission path; a first variable impedance circuit located on the first transmission path and configured to change an electrical length of the first transmission path on the basis of the frequency of the RF signal; and a second variable impedance circuit located on the second transmission path and configured to change the electrical length on the basis of a power mode. Various other embodiments understood from the specification may also be possible.
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Inventors:
YANG DONGIL (KR)
KIM JOOSEUNG (KR)
SON JUNGHWAN (KR)
CHOI HYUNSEOK (KR)
KIM JOOSEUNG (KR)
SON JUNGHWAN (KR)
CHOI HYUNSEOK (KR)
Application Number:
PCT/KR2021/000313
Publication Date:
July 15, 2021
Filing Date:
January 11, 2021
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H03F1/56; H03F3/19; H03F3/24; H03F3/60
Foreign References:
| KR101694709B1 | 2017-01-10 | |||
| KR20080108527A | 2008-12-15 | |||
| KR101867396B1 | 2018-06-15 | |||
| US20110279178A1 | 2011-11-17 | |||
| KR20130129367A | 2013-11-28 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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