Stretching method using Chebyshev polynomial for linear sparse array antenna design

In this paper, a novel non-uniform stretching method of linear sparse array antenna design is proposed. This method is developed by applying new approach of inter-element spacing stretching strategy based on Chebyshev polynomial technique. The performance of proposed method is compared to full array antenna configuration with half-wavelength spacing. The simulation result shown the stretching-Chebyshev method has improved sidelobes level (SLL) compared to full array configuration with significant reduced number of array elements.