Simplifying the feeding network for multi-beam circular antenna arrays by using corps

An innovative way to analyze the design of beam-forming networks (BFN) for scannable multi-beam circular antenna arrays using the CORPS (Coherently Radiating Periodic Structures) concept is introduced. This design of CORPS-BFN considers the optimization of the complex inputs of the feeding network by using the Difierential Evolution (DE) method. Simulation results for difierent conflgurations of CORPS-BFN for a scannable circular array are presented. The results shown in this paper illustrate certain interesting characteristics in the behavior of the array factor for the scannable circular array. The most signiflcant aspect that is unique to this proposal is the simpliflcation of the feeding network based on CORPS.

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