

The research activities of the RCL in this area
include:
 modeling of anisotropic substrates
for microstrip structures
 filter design
 microstrip transmission lines
 highfrequency remotesensing.
The RCL has participated in several national and EUfunded
programs in this field in collaboration with other research groups. Among
the projects which have been carried out were (i) the study and applications
of microstrips in the development of MIC’s and, (ii) the design of filters
and diplexers of an antenna system.
Some recent publications in this area are
given below:
1. K.
Siakavara,
Modal
analysis of the microwave frequency response and composite right/left
handed (CRLH) operation of a rectangular waveguide loaded with DPS and
DNG materials,
accepted
2. T.N. Kaifas, J.N. Sahalos, A 4x4 Butler Matrix Optimized for UMTS
applications, Microwave and Optical Technology Letters,Vol. 49,
Issue 3, pp. 585588, Mar 2007.
3. Τ.N.Kaifas,
J.N.Sahalos, On the Design of a Single Layer Wideband Butler Matrix for
SwitchedBeam UMTS System Applications, IEEE Antennas and Propagation
Magazine, vol. 48, no. 6, pp. 193204, Dec 2006
4. H.P.
Tabeki, K. Siakavara, Reduction of electromagnetic field coupling to
microstrip circuits, Electrical Engineering, vol. 88, No. 3,
pp.191199, March 2006.
5. S. Goudos, J.N. Sahalos, Microwave Absorber Optimal Design using
Multiobjective Particle Swarm Optimization, Microwave and Optical
Technology Letters, vol. 48, (8), pp. 15531558, 2006.
6. K.
Siakavara, Novel Microwave Microstrip filters using Photonic Bandgap
Ground Plane with Fractal Periodic Pattern,
Microwave and Optical
Technology Letters, Vol. 43, No 4, November 20, pp.273276, 2004
7. K.Siakavara, K.Koukouliantas, and P.Kouraklis, Power loss and radiated
field from microwave microstrip floating lines in resonance,
Canadian Journal of Physics, Vol. 82, No.12, pp.10531066, 2004.
8. A.P. Orfanidis, G.A. Kyriacou, T. Samaras and J.N. Sahalos, Mode
Matching Analysis of Multiple Offset Coaxial Circular Waveguides,
Electronic Letters, vol. 40, pp. 127128, 2004
9. P. Allilomes, G.A. Kyriacou, E. Vafiadis, J.N. Sahalos, A FEM
Analysis of Open Boundary Structures Using Edge Elements and a Cylindrical
Harmonics Expansion, Electromagnetics, vol. 24, pp. 6979, 2004
10. P. Allilomes, G.A. Kyriacou, E. Vafiadis, J.N. Sahalos, Authors
Reply to Comment on A FEM Analysis of Open Boundary Structures Using Edge
Elements and a Cylindrical Harmonics Expansion, Electromagnetics,
vol. 24, pp. 493495, 2004
11. Z. D. Zaharis and J.N. Sahalos, On the Electromagnetic Scattering
of a Chaff Cloud, Electrical Engineering, vol. 85, pp. 129135,
2003
12. Ar.
Koufogiannidis , K. Siakavara,
Coupled Microstrip Filters on Multilayered Dielectric Media,
Can. J. Phys.,Vol. 80, No 6, pp. 675685 , June 2002.
13. I.
Mertzianidis, S. Goudos and J.N. Sahalos, Direct Solution and Monte Carlo
Simulation of the Inverse Problem in Twolayered HalfSpace, Electrical
Engineering, vol. 14, pp. 5160, 2002
