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Artificial Neural Networks (ANNs) have been used as a promising tools for many applications. In recent years, a computer-aided design approach based on ANNs has been introduced to microwave modeling, simulation and optimization. In this work, the characteristics parameters of the conductor-backed asymmetric coplanar waveguide (CB - ACPW) with one lateral ground plane have been determined with the...
A compact coplanar wave guide-fed monopole slot antenna is presented for ultra wide band applications. The antenna consists of exciting tree shaped stub. The antenna has compact aperture area of 22 ?? 13 mm2. It provides an impedance band width of 228% for S11 < -10 db with respect to lowest resonant frequency of 3.42 GHz. It provides constant gain, stable radiation pattern over operating frequency...
In the recent decade, metamaterials have become one of the popular areas of interest. Some of the various structures of Split-Ring Resonators (SRR) we have come across are circular, square, spiral and omega shaped. All these structures produce effective permeability and permittivity as negative over a certain range of frequencies. In this paper, a new structure of triangular split ring resonator with...
In this paper a CAD approach based on ANNs was successfully introduced to determine the parasitic effects occurred in (effective dielectric and characteristics impedance) Coplanar Wave guide (CPW) with upper shielding and conductor backing. ANNs were trained with three learning algorithms to obtain better performance and faster convergence with simpler structure. The best results were obtained with...
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