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To assess the impact of pseudo-conformal geometry in the irradiative pattern of a K-Band antenna array, a three-waveguide array was designed that allows the forward displacement of the outer waveguides in relation to the central element. The field pattern of the antenna array for different geometric configurations was simulated using the correct excitation reaching the individual waveguide through the beamformer. The variation in the number of beams, beamwidth of the main beam, and separation between beams with displacement distance of the external waveguides were calculated. Comparison of the simulated pattern with measurements is presented for this antenna to verify the accuracy of the radiation model.