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A new type of variable phase shifter is designed by using the Ansoft HFSS simulation software, which is based on the suspended T-junction and its equivalent circuit. It can easily realize the characteristic of equal power and phase shift.
The pointer phase shifter and slide phase shifter have been widely utilized in electrically adjustable antennas of mobile communication base-stations. We propose the equivalent-circuit models of the phase shifters, to analyze them. The simulation results are compared to show their different transmission and phase shifting performance, which is useful to design electrically adjustable antennas.
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