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Beam-steering antennas are the ideal solution for a variety of system applications, including traffic control and collision-avoidance radars, smart base station antennas for WLAN and cellular communication. Beam-steering is most commonly achieved through using phased arrays, where phase shifters are used to control the relative of the main-beam. The objective of this research is to investigate and implement a phase shifter in a linear antenna array for angle scan. A microstrip antenna array is used since it is simple to design and fabricate. The phase shifter is provided using different lengths of coaxial cable. Advanced Design system Software (ADS) is used to simulate the phased array antenna.
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