Design and Implementation of an Integrated Phased Array with Stripline Series Feed in K-band

This article discusses the design and realization of a stripline series feed aperture coupled phased array. The feeding of the antenna using the stripline technology is discussed. Simulation results of a single row of 48 elements having traveling wave feed tapering ratio of 1:5 are presented. These results covers the band from 19.5 to 20.5 GHz with a realized gain and side lobe level of 22.4dB and 18.7dB at 20GHz and a beamwidth of about 2.5°• A realized array of 64x48 elements is shown. Electronic steering in one direction (i.e., elevation) can be achieved by mounting phase shifters on the lowest layer, which is connected to the series feed through a coplanar waveguide and a via transition.