Abstract
There is very little experimental work documented on the behavior of phased array antennas that is available. The work that can be found is almost exclusively on simulations that show their benefits in wireless networks. Digital beamforming algorithms are used for the Direction of Arrival (DOA), but they are very complicated in design and hence costly. The researcher is motivated to present a design of a four-element phased array in 2.45 GHz ISM band using a Wilkinson Power Divider (WPD) and a 180° reflection-type phase shifter using IC 2484 controlled through a Programmable System on Chip (PSoC). In a real-time environment, it is difficult to integrate RF components with software support. In the proposed system both, the RF components and the PSoC controller are embedded successfully to generate beam patterns. Each component of the proposed system is designed and evaluated before fabrication. The gain is 12.95 dBi and is constant throughout the scan angle in the case of the simulated and experimental results. The Side Lobe Level (SLL) is less than −13 dB. The DOA for the main lobe in the simulation and experimental phased array is very close to the desired direction.
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