公开(公告)号：US20070173220A1

公开(公告)日：2007-07-26

申请号：US11584430

申请日：2006-10-20

Applicant: Young-Jin Kim ,  Woo-Nyun Kim

Inventor： Young-Jin Kim ,  Woo-Nyun Kim

IPC: H04B1/10

CPC classification number: H04B1/30 ,  H04B1/109

Abstract: A second-order intermodulation distortion (IMD2) compensating circuit that detects a variation of DC level of a voltage pair of a mixer load and adjusts the variation of the DC level of the voltage pair. The second-order intermodulation distortion compensating circuit also calibrates a mismatch of a mixer as well as a mismatch of the mixer load.

Abstract translation: 二阶互调失真（IMD2）补偿电路，其检测混频器负载的电压对的直流电平的变化，并调整电压对的直流电平的变化。 二阶互调失真补偿电路还校准混频器的不匹配以及混频器负载的不匹配。

公开(公告)号：US08000676B2

公开(公告)日：2011-08-16

申请号：US11942875

申请日：2007-11-20

Applicant: Hyun-Seok Kim ,  Woo-Nyun Kim

Inventor： Hyun-Seok Kim ,  Woo-Nyun Kim

IPC: H04B1/26

CPC classification number: H04B1/30 ,  H03D2200/0047 ,  H03D2200/0088

Abstract: A second intercept point (IP2) calibrator and a method for calibrating IP2 are disclosed. The IP2 calibrator and the method for calibrating IP2 remove any direct current (DC) offset by comparing a common-mode reference voltage with the common-mode voltage measured between a first output terminal and a second output terminal of a mixer, and calibrates the IP2 of the mixer by comparing the common-mode voltage with a calibration reference voltage. The calibration reference voltage is independent of the common-mode reference voltage and may be a quantized variable voltage generated according to digital control code.

Abstract translation: 公开了第二拦截点（IP2）校准器和校准IP2的方法。 IP2校准器和校准IP2的方法通过将共模参考电压与在混频器的第一输出端子和第二输出端子之间测量的共模电压进行比较来消除任何直流（DC）偏移，并校准IP2 通过将共模电压与校准参考电压进行比较来实现。 校准参考电压与共模参考电压无关，可以是根据数字控制代码生成的量化可变电压。

公开(公告)号：US20080116902A1

公开(公告)日：2008-05-22

申请号：US11942875

申请日：2007-11-20

Applicant: Hyun-Seok Kim ,  Woo-Nyun Kim

Inventor： Hyun-Seok Kim ,  Woo-Nyun Kim

IPC: G01R35/00 ,  H04L25/06

CPC classification number: H04B1/30 ,  H03D2200/0047 ,  H03D2200/0088

Abstract: A second intercept point (IP2) calibrator and a method for calibrating IP2 are disclosed. The IP2 calibrator and the method for calibrating IP2 remove any direct current (DC) offset by comparing a common-mode reference voltage with the common-mode voltage measured between a first output terminal and a second output terminal of a mixer, and calibrates the IP2 of the mixer by comparing the common-mode voltage with a calibration reference voltage. The calibration reference voltage is independent of the common-mode reference voltage and may be a quantized variable voltage generated according to digital control code.

Abstract translation: 公开了第二拦截点（IP2）校准器和校准IP2的方法。 IP2校准器和校准IP2的方法通过将共模参考电压与在混频器的第一输出端子和第二输出端子之间测量的共模电压进行比较来消除任何直流（DC）偏移，并校准IP2 通过将共模电压与校准参考电压进行比较来实现。 校准参考电压与共模参考电压无关，可以是根据数字控制代码生成的量化可变电压。