The comb filter is one of the basic building blocks in the world of digital filtering and signal processing, and an important component in a wide variety of musical and non-musical applications ranging from anti-aliasing of images and video to the design of numerous traditional audio effects. This paper describes a technique of using nested comb filter structures in order to design computationa...

Air-filled metal-pipe rectangular waveguides (MPRWGs) represent one of the most important forms of guided-wave structure for terahertz applications. Well-known commercial electromagnetic modelling software packages currently employ over-simplified intrinsic frequency dispersion models for the bulk conductivity of normal metals used in terahertz structures at room temperature. This paper has com...

A substrate integrated waveguide (SIW) fed rectangular-shaped dielectric resonator antenna (DRA) is proposed for application in the D - Band frequency regime. The Dielectric Resonator (DR) designed to operate higher order modes. narrow slot used excite DR element, leading multiple resonances. resulting structure a multi-resonant operating at six frequencies 123.64 GHz, 125.76 127.4 129.9 134.9 ...

This paper presents the design and development of a planar Aligned-Gap and Centered-Gap Rectangular Multiple Split Ring Resonator (SRR) for microwave sensors that operates at a resonance frequency around 5 GHz. The sensor consists of a microstrip transmission line loaded with two elements of rectangular SRR on both sides. The proposed metamaterial sensors were designed and fabricated on Rogers ...

In this paper, a rectangular slotted microstrip patch antenna with partially loaded metamaterial multiple-split ring resonator (MSRR) ground plane is presented. In unloaded condition, the rectangular slotted patch antenna resonates at 9.38 GHz. When the same antenna is loaded with MSRR in the ground plane, it resonates at lower resonant frequencies 4.60 GHz and 7.70 GHz respectively. The mutual...

This paper presents the design of a compact rectangular dielectric resonator antenna (RDRA) for wireless applications. A metal plate has been attached to top surface of the RDRA to achieve significant reduction in the resonant frequency of the antenna. A simple microstrip feeding mechanism has been used to excite this compact rectangular DRA. Performance parameters such as resonant frequency, i...

in this paper, using annular resonator we have designed an adding and dropping filter light based ontwo-dimensional photonic crystals. the shape of ring resonator filter adding and dropping that wehave proposed is race track. this filter has a hexagonal lattice structure of silicon bars withrefractive index 3/46 that is located in the context of air with refractive index 1. transmissionefficien...

A singly-fed dual-band circularly polarized dielectric resonator antenna (DRA) is investigated in this paper. It makes use of the fundamental TE111mode and higher-order TE113mode of a rectangular DRA for the dual band design. The DRA has a square cross section. It is excited by a single micro strip line-fed rectangular slot fed. To generate circularly polarized (CP) fields, two corners of the D...

A compact rectangular printed antenna with dual band-notches is proposed for ultra-wideband (UWB) applications. The dual band-notch characteristics have been realized by etching one C-shaped parasitic element and rectangular split ring resonator above the ground plane. The proposed antenna can achieves a wide bandwidth from 2.9-11 GHz with the dual notched bands centred at 5.25 GHz and 5.8 GHz....