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| Abstract: | A printed compact coplanar waveguide fed triangular slot antenna for ultra wide band (UWB) communication systems is presented. The antenna comprises of a triangular slot loaded ground plane with a T shaped strip radiator to enhance the bandwidth and radiation. This compact antenna has a dimension of 26mm×26mm when printed on a substrate of dielectric constant 4.4 and thickness 1.6mm. Design equations are implemented and validated for different substrates. The pulse distortion is insignificant and is verified by the measured antenna performance with high signal fidelity and virtually steady group delay. The simulation and experiment reveal that the proposed antenna exhibits good impedance match, stable radiation patterns and constant gain and group delay over the entire operating band |
| Description: | Int. J. Electron. Commun. (AEÜ) 66 (2012) 189–194 |
| URI: | http://dyuthi.cusat.ac.in/purl/4325 |
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| A compact CPW f ... wide band applications.pdf | (1.246Mb) |
| Abstract: | Electric permittivity and magnetic permeability control electromagnetic wave propagation th rough materials. I n naturally occu rring materials, these are positive. Artificial materials exhi b iting negative material properties have been reported : they are referred to as metamaterials. This paper concentrates on a ring-type split-ring resonator (SRR) exhibiting negative magnetic permeability. The design and synthesis of the SRR using the genetic-algorithm approach is explained in detail. A user-friendly g raphical user i nterface (G U I ) for an SRR optim izer and estimator using MATLAB TM is also presented |
| Description: | IEEE Antennas and Propagation Magazine, Vol. 53, No. 4, August 20 1 1 |
| URI: | http://dyuthi.cusat.ac.in/purl/4322 |
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| Design of an ... g Split-ring resonator.pdf | (4.797Mb) |
| Abstract: | Negative magnetic permeability media (NMPM) can be built up by using small resonant metallic particles like Split ring resonator (SRR) which has very high magnetic polarisability. A group of these particles shows a negative permeability region near and above the resonant frequency. The continuous medium parameters describing the SRR array can be predicted from their individual electromagnetic behavior near the resonances. The paper presents an optimizing software using Genetic Algorithm (GA) to design an edge coupled two ring SRR for a particular frequency |
| Description: | Recent Advances in Microwave Theory and Applications, 2008. MICROWAVE 2008. International Conference on |
| URI: | http://dyuthi.cusat.ac.in/purl/4345 |
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| Ga Optimized Srr Calculator.pdf | (1.052Mb) |
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