This paper proposes a novel fin line integrated unit with power dividing,phase shifting,and radiation functions for two dimensional phased arrays.The power divider,digital PIN diode phase shifters,and antennas in the integrated unit all use fin line transmission lines,so that the microwave parts of multiple channels are integrated on one fin line circuit board.The fin line digital PIN diode phase shifters used in the unit feature small size,low insertion loss,fewer components,and no power consumption in the normal beam state of the antenna.The perform-ance of the integrated unit is simulated and optimized using the ANSYS HFSS software.The test results show that the integrated unit can achieve good performance in X band using available mature processes,providing a new idea for low cost two dimensional phased array technology.
fin line digital diode phase shifterfin line power dividerfin line radiating elementtwo-dimensional phased array
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