Technical memorandum: Analysis of reactively loaded microstrip disk antenna

Abstract

The moment method solution to the problem of a reactively loaded circular patch is presented. Using the reaction integral equation in conjunction with the method of moments, parameters of the Thévenin's equivalent network for the loaded patch are obtained. From the equivalent network parameters an expression for the input impedance of the loaded patch is derived. A design procedure for a circularly polarised disk antenna is presented. Computed results are compared with the experimental data.