ANALYSIS OF A MILLIMETER-WAVE ANTENNA CONSISTING OF LAYERED MAGNETIC AND DIELECTRIC SLABS WITH PERIODIC CORRUGATION

In this paper the characteristics of millimeterwave antenna composed o f layered magnetic and dielectric slabs with different corrugation are described for the transverse electric mode. A corrugation of the uppe r magnetic layer contacts with air, and the lower surface of the diele ctric slab having corrugation is matalized. The extinction coefficient clarifying the characteristics of the leakage wave is systematically derived by using the perturbation method combined with the multiple sp ace scales. As an example the, radiation efficiency becomes a value of about 89% by using the typical physical parameters in the frequency r ange from 52 to 54 GHz.