公开(公告)号：US20200228062A1

公开(公告)日：2020-07-16

申请号：US16740317

申请日：2020-01-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kihyun KIM ,  Daehyun KANG ,  Hyunchul PARK ,  Kyuhwan AN ,  Jaesik JANG

IPC: H03D7/12

Abstract: The disclosure relates to a communication method and system for converging a 5G communication system for supporting higher data rates beyond a 4G system with an IoT technology. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety-related services. The disclosure provides a mixer including a first impedance connected in parallel to a mixer output transformer and configured to remove a primary local frequency component generated at an output of the mixer, and a second impedance connected in parallel to the mixer output transformer and configured to remove a secondary local frequency component generated at the output of the mixer, wherein the first impedance operates as a series resonator in a primary local frequency band, and the second impedance operates as a parallel resonator in a secondary local frequency band.

公开(公告)号：US20200212952A1

公开(公告)日：2020-07-02

申请号：US16727438

申请日：2019-12-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaesik JANG ,  Kyuhwan AN ,  Youngchang YOON ,  Kihyun KIM ,  Sangho LEE

IPC: H04B1/403 ,  H04B1/00 ,  H04B1/28 ,  H03F3/45 ,  H03F3/24

Abstract: A method and apparatus capable of adjusting a signal level in a wireless communication system are provided. An electronic device includes an oscillator configured to output a local oscillator (LO) signal, a mixer configured to convert a frequency band of a first signal based on the LO signal and output a third signal, and a feedback circuit configured to output a feedback signal for adjusting a magnitude of the LO signal, wherein the mixer is further configured to adjust a magnitude of LO signal based on the feedback signal.

公开(公告)号：US20200212859A1

公开(公告)日：2020-07-02

申请号：US16727105

申请日：2019-12-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kihyun KIM ,  Hyunchul PARK ,  Kyuhwan AN ,  Jaesik JANG ,  Yunsung CHO

IPC: H03F3/72 ,  H03F1/02

Abstract: An electronic device including an amplifier which includes a first transistor configured to receive an input signal through a gate terminal thereof and having a source terminal electrically connected to ground, a second transistor configured to transmit an output signal through a drain terminal thereof and having a gate terminal electrically connected to the ground, and a switch electrically connected to the gate terminal of the second transistor and configured to switch a voltage being supplied to the gate terminal of the second transistor in accordance with turn-on or turn-off of the amplifier.