Figure 3. Experimental frequency dependences of the measuring resonator when installing the first load weight of 2 kg: upper curve – modulus of the reflection coefficient, the lower curve – modulus of the transfer coefficient

From

The Modified Resonant Method for Measuring the Velocity Factor of the Electromagnetic Wave in the Microstrip Transmission Line

Alexey Kopylov, Yuri Salomatov, Alexander Senchenko

Journal of Instrumentation Technology. 2014, 2(1), 5-8