A patent is granted to Sr. Professors K.C. James Raju and V Seshubai involving their students Mr. T. Anil and Mr. Swarup Raju for an invention “A method for preparing dielectric resonators of arbitrary shapes”.
This is a technique to realize 3D microwave radiating structures with low loss dielectrics without the constraint of geometry. Radiation patterns are governed by the laws of Physics and present-day communication requirements demands all sorts of radiation patterns. 3D solid structures with appropriate dielectric materials can meet that requirement provided there is a means to shape such materials into some desired geometries which are often complex.
This technique allows even high temperature ceramics to be shaped into any 3D geometric structures through a gel casting route. They help in realizing miniaturized antennas suitable for emerging communication applications.