Abstract
Beam-steering antennas are the ideal solution for a variety of system applications, it is most commonly achieved through using phased arrays, where phase shifters are used to control the relative of the main-beam. In this paper, a low-cost directive beam-steering phased array (DBS-PA) antenna using switched line phase shifters is demonstrated. The proposed DBS-PA antenna has four micro-strip patch antennas, three power dividers and four phase shifters printed on the same Rogers RT-Durroid substrate with a dielectric constant of 2.2 with dimensions of 8 × 3.5 cm. The phased array antenna has a directivity of 11.92 dBi and the main beam direction can be switched between the angles of ±25° with a 3 dB beam-width of 23°. All design and simulations have been carried out using Ansoft HFSS software tool. The frequency considered for the operation is 10 GHz.
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