Design of millimeter-wave transmission standards for scattering parameters measurements in the frequency range from 140 GHz to 220 GHz

RF and microwave networks are often characterized using scattering or S-parameters. The S-parameters of a network provide a clear physical interpretation of the transmission and reflection performance of devices. Vector-network-analyzer can measure S-parameters rapidly with a great accuracy. When a calibration has been performed, we need to use verification kits to check the performance of the VNA. These kits contain devices, such as transmission magnitude standards, transmission phase standards, and reflect magnitude standards, whose characteristics are precisely and independently known. When these devices are measured, the difference between the displayed results and the known values indicates the level of measurement accuracy. This paper presents a new design method for millimeter-wave coplanar waveguide transmission magnitude standards. Simulation and measurement results are presented.