Miniaturization of Circular Resonators Waveguide at SHF Frequency using Floral Foam Electromagnetic Engineering

In the commercial setting, telecommunications equipment is provided in a portable dimension. Some researchers have analyzed that the presence of high permittivity dielectric material in telecommunications equipment can reduce the dimensions of the device. The device that has been realized using dielectric material with smaller dimensions is a microstrip antenna. This research can be realized in other telecommunications devices such as cavity resonators by inserting dielectric material into the resonator. Dielectric material that can be used are FR4 epoxy, styrofoam and floral foam. Dielectric material used a floral foam because the latest research shows that floral foam can increase the permittivity higher than FR4 Epoxy and styrofoam. The electromagnetic properties of floral foam are disturbed by adding conductor wires according to the information on the distribution of the maximum electric field magnitude of a TM01 electromagnetic wave mode. The measurement results show that the conventional cavity resonator with 26 mm of radius and artificial cavity resonator with 17.8 mm of radius work at frequency of 5.2 GHz. It shows that the dielectric material floral foam has succeeded in miniaturizing the cavity resonator with a radius difference of 31.4%.