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A comparison the performances of linear and planar array of the four patchs antennas by the software matlab

Ubiquity, Volume 2006 Issue April | BY A. Ait Ouahman , A. Oulad-Said , A. Latif 


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A linear array is a simple configuration and commonly used, however it is essential to investigate its performances.There are four basic factors that influence on performances of an array patches antennas: spacing between patches, number of patches in the array, amplitude distribution, and excitation phase, all these parameters will be varied to find the optimal configuration.This paper is consecrated to the variation of the excitation phase, and the other factors are fixed, what is going to permit us to scanning the radiation pattern of a linear array of four rectangular patches microstrip antennas in the E-plane and in the H-plane, without resorting to a mechanical displacement of this array [1]. The effect on the direction of the main beam of those arrays (linear and planar) will be studied. We are going to compare our theory used and programmed in MATLAB by one simulations executed in the PCAAD (Personal Computer Aided Antennas Design) software [2].However, we are going to explore the radiation pattern by the variation of the excitation phase of patches of a square array for four rectangular microstrip patches antennas array, as we takes the same elements of the previous linear array[3], [4], and we are going to put them under shape of a planar square array.

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