Microwave propagation in two dimensional structures using lossy cylindrical glass rods

E. Nagesh, G. Santosh Babu, V. Subramanian (), V. Sivasubramanian and V. Murthy

The European Physical Journal B: Condensed Matter and Complex Systems, 2004, vol. 41, issue 2, 177-184

Abstract: Two dimensional microwave band gap structures have been constructed using lossy cylindrical glass samples ( $\varepsilon^\prime=5.5$ and $\varepsilon "=0.1$ ). The power transmission spectra observed between 10 and 20 GHz for both square and triangular structures with three different lattice spacing (2.5, 1.4 and 0.9 cm) are explained in terms of the lattice spacing, filling fraction and loss tangent. The experimental results and the theoretical values agree well for the structures having higher filling fraction. Also, the values predicted from the scaling procedure agree well with the experimental values. The appearance of acceptor modes due to the introduction of defects in these structures is also reported. Copyright Springer-Verlag Berlin/Heidelberg 2004

Date: 2004
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DOI: 10.1140/epjb/e2004-00307-6

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