Abstract
In this paper, a reconfigurable negative reflect index (NRI) phase shifter is proposed, and adopted in a 3-element coplanar waveguide (CPW) continuous transverse stub (CTS) antenna array to achieve beam steering capability. The NRI phase shifter consists of three pin diodes, two shunt inductors and one capacitor. 3-stage phase shifters with different components' values are combined to achieve 3bit reconfigurable working states. By controlling the working states, 8 different beam steering angles can be achieved in the CPW-CTS antenna array with good impedance matching. Simulation results are shown to validate the design strategy.
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