In this paper a dual-band bandpass filter, using stub loaded ring resonator and etched nested C-shape defected ground structure (DGS), is reported. The operating frequencies of the bandpass filter conform to the Bluetooth (2.4GHz–2.484 GHz) and WLAN (5.15 GHz–5.35 GHz) systems. Due to its applications in WLAN and Bluetooth systems, the filter will be subjected to high EM radiation from the ante...

Volumetric integral and integro-differential equations are considered that describe problems of diffraction by three-dimensional bodies with given macroscopic permittivity magnetic permeability, as well on free vibrations such bodies. Similar obtained for waveguide structures: hollow shielded waveguides dielectric filling, (optical beamguides), photonic-crystal waveguides. Dominantly stationary...

Abstract A low‐profile rectangular dielectric resonator antenna (RDRA) through the slot‐based feed method is studied for multiband operation. Based on perfect magnetic wall (PMW) model and waveguide (DWM), field distributions resonant frequencies of RDRA intrinsic modes are calculated multimodal analysis. The microstrip backed slot coupling scheme employed simultaneous excitation multiple modes...