公开(公告)号：US20160061875A1

公开(公告)日：2016-03-03

申请号：US14804899

申请日：2015-07-21

Applicant: Alpha Networks Inc.

Inventor： Rong-Fa KUO ,  Ming-Chih PENG

IPC: G01R31/02

CPC classification number: G01R31/2822

Abstract: In a testing circuit performing a testing operation to detect an RF circuit characteristic, a first filter unit is provided, having a first external terminal electrically coupled to a testing signal and a second external terminal electrically coupled to an RF circuit of the RF device. The first filter unit is configured to allow the testing signal to enter the RF circuit while blocking an RF signal transmitted in the RF circuit from entering the testing circuit. In addition, a testing-result informing unit is provided, having an external input electrically coupled to the first external terminal, and generating an informing signal, which indicates a condition of the RF circuit according to an electric level at the external input.

Abstract translation: 在执行测试操作以检测RF电路特性的测试电路中，提供第一滤波器单元，其具有电耦合到测试信号的第一外部端子和电耦合到RF器件的RF电路的第二外部端子。 第一滤波器单元被配置为允许测试信号进入RF电路，同时阻挡在RF电路中发送的RF信号进入测试电路。 另外，提供了测试结果通知单元，具有电耦合到第一外部端子的外部输入端，并产生通知信号，该通知信号根据外部输入端的电平指示RF电路的状态。

公开(公告)号：US20170192043A1

公开(公告)日：2017-07-06

申请号：US15246734

申请日：2016-08-25

Applicant: Alpha Networks Inc.

Inventor： Chun-Hsueh CHU ,  Rong-Fa KUO

IPC: G01R27/16 ,  G01R27/04

CPC classification number: G01R27/16 ,  G01R27/04 ,  G01R27/06 ,  G01R27/28

Abstract: A characteristic impedance of an electric transmission line is measured by way of extraction. In the method, a first probe and a second probe are provided, wherein the first probe and the second probe are separable and independently operable probes. A first characteristic impedance of a first circuit where a first terminal of the first probe and a first terminal of the second probe are directly interconnected to each other is first measured. Then a second characteristic impedance of a second circuit where the first terminal of the first probe and the first terminal of the second probe are connected to opposite terminals of the electric transmission line, respectively, is measured. The characteristic impedance of the electric transmission line can then be obtained according to the first characteristic impedance and the second characteristic impedance.