Extraordinary permittivity characterization of 4H SiC at millimeter-wave frequencies

Reconfigurable antennas and radio wave propagation at millimeter-wave frequencies

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Vasilii Semkin Name of the doctoral dissertation Reconfigurable antennas and radio wave propagation at millimeter-wave frequencies Publisher School of Electrical Engineering Unit Department of Radio Science and Engineering Series Aalto University publication series DOCTORAL DISSERTATIONS 151/2016 Field of research Radio Engine...

Measurement of loss in superconducting microstrip at millimeter-wave frequencies

We have developed a new technique for accurate measurement of the loss of superconducting microstrips at mm-wave frequencies. In this technique, we optically couple power to slot antenna, which is connected to one port of a hybrid coupler. One of the output ports of the hybrid delivers power to a series of mm-wave microstrip resonators which are capacitively coupled to a feedline followed by an...

Development of a test bench for characterization of integrated antennas at millimeter-wave frequencies

Polarimetric Characterization of Debris and Faults in the Highway Environment at Millimeter-Wave Frequencies

In this paper, measurements and models for the polarimetric backscatter response of various point targets on roads and road surface faults is presented. Of particular interest are debris and faults that could lead to fatal accidents and damage of property. A desired safety feature for automotive radar sensors is the capability of detecting such debris and faults. The detectability of a point ta...

Characterization of Dielectric Layers for Passivation of 4H-SiC Devices