公开(公告)号：US20160330049A1

公开(公告)日：2016-11-10

申请号：US15109376

申请日：2015-01-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yi-Ju ROH ,  Ji-Hoon KIM ,  Ju-Ho SON ,  Yun-A SHIM ,  Dong-Hyun LEE ,  Dong-Yun JUNG ,  Sung-Tae CHOI ,  Seung-Pyo HONG

IPC: H04L25/06

CPC classification number: H04L25/06 ,  H03D2200/0047 ,  H04B1/30 ,  H04B2001/305

Abstract: The present invention relates to a method and an apparatus for direct current offset calibration of a direct conversion receiver, a Direct Current (DC) offset calibration apparatus of a direct conversion receiver includes a plurality of variable gain amplifiers for amplifying an input signal based on a gain control value, a DC offset monitoring unit for monitoring a DC offset for an output signal of the plurality of variable gain amplifiers, a plurality of variable Digital to Analog Converters (DACs) for controlling a current applied to each of the plurality of variable gain amplifiers according to a current control code, and a DC offset cancellation unit for determining a current control code set which minimizes the DC offset value per preset gain control value, and thus the DC offset can be precisely cancelled without being affected by external factors such as a signal modulation method and heat and performance degradation of the receiver can be prevented.

Abstract translation: 本发明涉及直接转换接收机的直流偏移校准的方法和装置，直接转换接收机的直流（DC）偏移校准装置包括多个可变增益放大器，用于基于输入信号放大输入信号 增益控制值; DC偏移监视单元，用于监视所述多个可变增益放大器的输出信号的DC偏移;多个可变数模转换器（DAC），用于控制施加到所述多个可变增益中的每一个的可变增益 根据当前控制码的放大器以及用于确定使每个预设增益控制值的DC偏移值最小化的电流控制码集的DC偏移消除单元，因此可以精确地消除DC偏移，而不受外部因素的影响，例如 可以防止信号调制方法和接收机的热和性能退化。

公开(公告)号：US20170163237A1

公开(公告)日：2017-06-08

申请号：US15371792

申请日：2016-12-07

Applicant: Samsung Electronics Co., Ltd. ,  Foundation of Research & Business, Chungnam National University

Inventor： Jeong-Ho LEE ,  Choul-Young KIM ,  Hyun-Myung OH ,  Chul-Woo BYEON ,  Ju-Ho SON

IPC: H03H7/46 ,  H03H7/38

CPC classification number: H03H7/46 ,  H03H7/38 ,  H03H7/48

Abstract: Disclosed is a power divider circuit providing a mutual inductance and including a first primary inducing element having a first terminal connected with a first output port and a second terminal connected with a second primary inducing element having a first terminal connected with a second output port and a second terminal connected with the first primary inducing element and magnetically and mutually coupled with the first primary inducing element, a sub inducing element having a first terminal connected with an input port and a second terminal connected with the second terminal of the first primary inducing element and the second terminal of the second primary inducing element, and an isolation network connected between the first output port and the second output port. The sub inducing element is magnetically and mutually coupled with each of the first primary inducing element and the second primary inducing element.

公开(公告)号：US20170012349A1

公开(公告)日：2017-01-12

申请号：US15206720

申请日：2016-07-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dae-Young LEE ,  Chul-Woo BYEON ,  Ju-Ho SON ,  Jeong-Ho LEE ,  Mee-Ran KIM

IPC: H01Q1/24 ,  H01Q21/22 ,  H01Q3/30 ,  H01Q1/50

CPC classification number: H04B17/21 ,  H04B1/44 ,  H04B17/12

Abstract: An apparatus and a method for phase calibration in an radio frequency (RF) module that constitutes a wireless communication device are provided. The apparatus and method include a test signal is emitted by a forward transmission antenna array of a first antenna array, and the emitted test signal, which is transferred by a member that covers the first and second antenna arrays, is received through a forward reception antenna array of the second antenna array. On the basis of the received test signal, a phase value is calibrated with regard to each of chain combinations formed by the first and second antenna arrays. Forward chain combinations that constitute the chain combination may be determined by a combination of forward transmission chains, which correspond to respective transmission antennas that constitute the forward transmission antenna array, and forward reception chains, which correspond to respective reception antennas that constitute the forward reception antenna array.

Abstract translation: 提供了构成无线通信设备的射频（RF）模块中的相位校准的装置和方法。 该装置和方法包括测试信号由第一天线阵列的正向发射天线阵列发射，并且由覆盖第一和第二天线阵列的构件传送的发射测试信号通过前向接收天线 第二天线阵列阵列。 基于所接收的测试信号，相对于由第一和第二天线阵列形成的每个链组合来校正相位值。 构成链组合的前向链组合可以由对应于构成正向发送天线阵列的各个发送天线的正向发送链和对应于构成正向接收天线的各个接收天线的前向接收链的组合来确定 数组。