Research on W band microstrip patch antenna

This paper introduces the design of W band microstrip antennas, which is feeding by the microstrip line on the material for Rogers RT/duroid 5880 medium plate, the energy is coupled into microstrip line by using waveguide microstrip converter, and the whole system is simulated and actual measured. Measured results of the antenna radiation characteristics are differences from the simulation results. At the end of this paper the possible reasons leading to the consequence and the improvement plan are put forward.