Electromagnetic simulation of dense, connected Vivaldi antenna arrays

We describe the simulation of a dense, connected array of Vivaldi antennas serving a demonstrator for the Mid-Frequency Aperture Array. Four connected antenna elements are designed and simulated to form the main Unit Cell of the array. Different sizes of arrays are studied, up to 12×12 elements corresponding to a tile of the demonstrator. The technique used is the Array Scanning Method with additional Macro Basis Functions. Ultimately this simulation strategy will enable the simulation of disconnected tiles of dense, connected Vivaldi antenna arrays.