Symmetric and asymmetric two-hemidisk quasi-optical dielectric resonators

Quasi-optical dielectric resonators in the form of two hemidisks with a diametric slot between them are proposed. Such resonators keep the conditions for propagation of the whispering gallery mode waves. The resonators with oneand two-side displacement of the dielectric samples in the slot (asymmetric and symmetric resonators) are studied. The results of the frequency spectrum measurements in K-band are presented and discussed.