P.Yu. Derkachev, N.S. Kondrashova, M.B. Manuilov
The electromagnetic technique for analysis of the radial waveguide based feed network for multi-element phased antenna arrays is presented. The phased array elements are excited by means of coaxial probes. Numerical-analytical solution is based on EMF method. The numerical results for radiation pattern and impedance matching of millimeter-wave phased antenna array with hexagonal lattice and the total number of elements over two thousands are considered. The feasibility of the proposed design concept is proved experimentally by fabricated 60-element radial waveguide feed network.