Design and numerical simulation of a semi-symmetrical groove type resonator at millimeter waves

A semi-symmetrical groove guide resonator at millimeter waves is investigated both experimentally and numerically. The structure is made of duraluminium and fabricated with a maximum relative tolerance of less than 0.5%. Its resonance frequencies are measured. The simulations are performed via the powerful time domain simulator FDTD (finite difference time domain). The comparisons are presented and the results are discussed.