In 1938, Richtmayer [2] proposed the use of dielectrics as resonators and studied spherical and ring resonators. The first designs for dielectric resonator filters were described by Cohn in 1968 [3], ...
Circular disk resonators are used, for example, as microstrip filters, circulators including ferrite material, and patch antennas. Resonating sectors of disks also offer an excellent RF ground for a ...
Scientists at the University of Chinese Academy of Sciences have designed an ultrathin perovskite solar cell that utilizes a Gires-Tournois resonator to improve light absorption. Gires-Tournois ...