公开(公告)号：US09960795B1

公开(公告)日：2018-05-01

申请号：US15584116

申请日：2017-05-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Qing Liu ,  Dae Hyun Kwon ,  Hui Changhsiang

IPC: H04B1/06 ,  H04B7/00 ,  H04B1/04 ,  H03F3/19 ,  H03F3/24 ,  H04W84/04

CPC classification number: H04B1/0475 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/165 ,  H03F2200/333 ,  H03F2200/411 ,  H03F2200/451 ,  H04B2001/0408 ,  H04W84/042

Abstract: Provided are a semiconductor device and an operating method thereof. A semiconductor device includes a mixer configured to upconvert a baseband signal using a local oscillator (LO) signal; and a notch filter configured to receive the upconverted signal from the mixer and filter notch frequency components, the notch filter further configured to resonate at a fundamental frequency to provide a higher impedance and resonate at a notch frequency different from the fundamental frequency to provide a lower impedance.