一种新的双魔T多状态反射计

介绍了一种新的多状态反射计。该反射计由两只魔T和两个功率检测器组成。采用一只精密滑动短路器作标准，通过任意相位单位矢量五点校准法对其进行校准；另用一只精神滑动短路器来改变反射计状态。测量复反射系数采用矢量变换法。与传统的六端口反射计与多状态反射计相比，该反射计校准端口与测试端口相分离，具有结构简单、稳定性高、易于实现的特点。

A Novel Multistate Reflectometer Comprisedof TwoMagic Tees

A novel multistate reflectometer comprised of two magic tees and two power detectors is described. Two precise sliding short circuits are used, one is used to perform the calibration of the reflectometer by a calibration method using five unit-vectors with arbitrary phase, and another is used to make the reflectometer switch to different stable states. A vector transfer method is employed to obtain the complex reflection coefficient of DUT. The reflectometer is characterized by separated test and calibration port, simple hardware, and high stability and easy realization compared to the traditional six-port and multistate reflectometer.