1. HARSHAL NIGAM - Swami Keshvanand Institute of Technology, Management and Gramothan, Jaipur, India.
2. MONIKA MATHUR - Swami Keshvanand Institute of Technology, Management and Gramothan, Jaipur, India.
The paper deals with the design and analysis of radiation pattern for the phased array micro strip antenna by calculating the array factor of the array. The analysis starts with the calculation of the array factor for isotropic antenna elements, and further using pattern multiplication, the overall radiation pattern is plotted for the phased array microstrip antenna using MATLAB software. The final designed array has a size of 3 X 8 having an inter-element spacing of 0.8 λ in the horizontal direction and 0.4 λ in the vertical direction. The array's theoretical estimated results were compared to the results of the identical array's electromagnetic simulation using CST simulation software. The array was created using the Rogers RT Duroid substrate having 2.2 as the dielectric constant and a substrate height of 0.508 mm for a frequency of 25–29 GHz that can be used for a wide range of applications, including 5G. There is a small variation between theoretical and simulated results as the electromagnetics are also taken into account after electromagnetic simulation. The phase difference in the final phased array is created using a rat race hybrid ring which provides a 180-degree phase shift. The inclusion of phase shift from the normal array forms a dual beam and increased bandwidth but with a gain reduction.
Array Factor, Gain, Micro strip Patch Antenna, Multi Beam, Pattern Multiplication, Phased Array.