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在 MHZ 和 GHZ 频段内,测量功率和反射系数的经典方法是用定向耦合器。但最近定向耦合法受到了电桥法的挑战。电桥法具有一些引人注目的优点,特别是在无线电仪器测量时。本文对相应的测量仪作一简单的说明。
The classic method of measuring power and reflection coefficients in the MHZ and GHZ bands is with a directional coupler. Recently, however, directional coupling has been challenged by the bridge approach. The bridge method has some compelling advantages, especially when measuring with radio instruments. This article gives a simple description of the corresponding measuring instrument.