Hybridization of the multimode equivalent network approach for the analysis of a "realistic" finite array of open ended waveguides

In this contribution we present a theoretical model for the analysis of finite arrays of open-ended waveguides on finite supporting structures and/or radome coverages. This model is based on a multi-mode equivalent network (MEN) [G.Gerini, M. Guglielmi, G. Lastoria, Efficient Integral Equation Formulation for Admittance or Impedance Representation of Planar Waveguide Junctions] representation of the radiating waveguides with their tuning elements and a high frequency approach of the external region. The accessible ports given by the multi-mode network connecting the antenna with the feeding waveguides offers the possibility of optimizing the structure looking both at the radiation characteristics of the antenna as well as at the matching network in the waveguides.