Miniaturized Horn Antenna for use in Interferometric Radar based Measurement System

This paper investigates two different miniaturized horn antenna designs developed with the assumed high temperature resistance and impedance match. Apart from different geometries the developed antennas differ in impedance matching methods used for reflection coefficient improvement. It is shown that such designs can be realized at a cost of lower gain and higher sidelobe level. One of the designed antennas was manufactured with the use of substrate integrated waveguide (SIW) technology and the obtained measurement results are in a good agreements with simulations.