This paper presented a quad frequency passive array stacked patch antenna, which work on the L and S band frequencies of 1.1.76 GHz, 1.575 GHz, 1.60 GHz, and 2.492 GHz. The array contained 24 rectangular stacked patch antenna elements and this 3 × 8 array is fed by independent coaxial method. This design reduced the effects of the complex feeding network on antenna performance and the distance between each antenna element is only half of free space wavelength, so the size of whole array was reduced significantly. Proposed antenna is designed and fabricated using FR4 epoxy substrate and the performance of the antenna is analyzed using ANSYS HFSS software. This antenna can also be combined into a bigger array with more elements, then make the miniaturization of the array with multifunctional operation more obvious.
This paper presents simulation of a C-Band (6 GHz) , N×N (N=2, 4, 8, 16, 32) uniformly spaced planar array antenna using MATLAB 2013. The antenna array is simulated using MATLAB code and antenna parameters like Array Factor beam, Array Factor (dB) are calculated using MATLAB coding and hence their graphs are plotted for 2×2, 4×4, 8×8, 16×16, 32×32 array individually.
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