Antenna miniaturization using loop and dielectric resonator

摘要

In this work, miniaturization of Coplanar waveguide (CPW) fed slot antenna loaded with loop is presented. In addition to that, it is also possible to further reduce the resonant frequency with proper loading of circular loop and cylindrical Dielectric Resonator (DR). The unloaded and loaded resonance frequencies are 4.46 GHz and 2.23 GHz respectively which results in 50% reduction in resonant frequency without effecting radiation characteristics. But, with only loop loading on either end of radiating slot exhibits 19.50% reduction in resonance frequency. We also introduced hollow cylindrical dielectric resonator in loop loading antenna topology in that case we got 29.37% miniaturization in resonant frequency. Also after loading efficiency of loaded antenna structure improves slightly compare to reference antenna.