EMArges offers a novel type of a Fabry-Perot open resonator with Gaussian mirrors for automated broadband and accurate resonant measurements of electromagnetic properties of low-loss dielectric sheets in the 20-110 GHz frequency range. The system is equipped with a specialized software controlling the measurement process and extracting complex permittivity of the material under test from the measured frequency and Q-factor.
The system is offered for various frequency bands within 20-110 GHz limits. For instance, a major interest of the customers is in the measurements in the 20-50 GHz frequency range, although the option operating in the full frequency range is also popular.
The whole measurement setup consists of a computer, where the control software is installed, connected to the resonator and to the measurement equipment (either VNA or scalar Q-Meter). A Fabry-Perot cavity operates at consecutive TEM0,0,q Gaussian odd modes spaced every 1.5 GHz. Due to a sophisticated adaptive algorithm implemented in the control software dedicated to accurate and robust tracking of the modes, total measurement time usually does not exceed 10 minutes in the 20-50 GHz frequency band.
The system allows measuring samples with the following properties: