Abstract
This paper presents a reconfigurable phase shifter based on gap waveguide technology. The phase shift is achieved by sliding the side wall of a groove gap waveguide (GGW). By changing the width of the GGW, its propagation constant is tuned, and consequently, the phase shift along the GGW will be controlled. The simulation and measurement results indicate about 34.5% impedance bandwidth while the maximum insertion loss is 0.6 dB and the maximum phase shift of 524° is obtained.
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