https://doi.org/10.1140/epjb/e2004-00307-6
Microwave propagation in two dimensional structures using lossy cylindrical glass rods
1
Microwave Laboratory, Department of Physics, Indian Institute of Technology, Madras, Chennai, 600 036, India
2
Material Science Division, Indira Gandhi Centre for Atomic
Research, Kalpakkam, 603 102, India
Corresponding author: a manianvs@iitm.ac.in
Received:
26
September
2003
Revised:
26
April
2004
Published online:
12
October
2004
Two dimensional microwave band gap structures have been constructed using
lossy cylindrical glass samples (
and 
). 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.
PACS: 41.20.Jb – Electromagnetic wave propagation; radiowave propagation / 42.25.Fx – Diffraction and scattering
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2004
