OR.A.M.A > General Info
 
  In RCL a CAD for linear Antenna Arrays has been designed. It is named as ORAMA. ORAMA comes from the initials of the words :
   
 
ORthogonal Advanced Methods for Antennas
   
 

ORAMA is a Greek word which means vision. It is based on the Orthogonal Methods which have been intensively studied by Prof. J.N. Sahalos and his colleagues since 1974. Papers can be found in the international literature (see C.V. of Sahalos).

Director of RCL

J. N. Sahalos

  A list of studied topics is given bellow:
 

 

  1. The Orthogonal Method of Nonuniformly Spaced Arrays, J.N. Sahalos, Proc. of IEEE, 281, 1974.
  2. A General Method for Design of Dipole Antennas, (in Greek), J.N. Sahalos, Ph.D. Thesis, University of Thessaloniki, Greece, 1974.
  3. A Solution of the General Nonuniformly Spaced Antenna Array, J.N. Sahalos, Proc. of IEEE, 1292, 1974.
  4. On the Optimum Directivity of General Nonuniformly Spaced Broadside Arrays of Dipoles, J.N. Sahalos, K. Melidis & S. Lampou, Proc. of IEEE, 1706, 1974.
  5. On the Design of Antennas Consisting of Arbitrary Oriented Dipoles, J.N. Sahalos, IEEE Trans. Antennas & Propag. AP-24, 109, 1976.
  6. A Solution of Nonuniformly Linear Array with the Help of the Chebyshev Polynomials, J.N. Sahalos, IEEE Trans. Antennas & Propag. AP-24, 239, 1976.
  7. On the Synthesis of Nonuniform Planar Antenna Arrays, J.N. Sahalos & H. Papadimitraki-Chlichlia, Sci. Annals Fac. Phys. & Mathem., Univ. Thessaloniki, Vol.16, 1976.
  8. On the General Antenna Array Synthesis, J.N. Sahalos, K. Melidis & H. Papadimitraki-Chlichlia, Sci. Annals Fac. Phys. & Mathem., Univ. Thessaloniki, Vol.16, 1976.
  9. On the Optimum Directivity of Antennas Consisting of Arbitrary Oriented Dipoles, J.N. Sahalos, IEEE Trans. Antennas & Propag. AP-24, 322, 1976.
  10. A Solution of Radiation Pattern Synthesis of Arbitrary Antennas, J.N. Sahalos & H. Papadimitraki-Chlichlia, Sci. Annals Fac. Phys. & Mathem., Univ. Thessaloniki, Vol.16, 1976.
  11. Synthesis and Optimization for Arrays of Nonparallel Wire Antennas, J.N. Sahalos, OSU, Tech.Rep. No. 4372-3, ESL, 1977.
  12. Synthesis and Optimization for Arrays of Nonparallel Wire Antennas by the Orthogonal Method, J.N. Sahalos, IEEE Trans. Antennas & Propag. AP-26, 886, 1978.
  13. A Hybrid MM-GTD Technique for Optimization of the Power Gain of Arrays of Wire Antennas Near an Elliptic Cylinder, K. Siakavara & J.N. Sahalos, Proc. IEEE, 73, 1426, 1985
  14. A Simplification of the Synthesis of Parallel Wire Antenna Arrays, K. Siakavara & J.N. Sahalos, IEEE Trans. Antennas & Propag., July 1989.
  15. On the Synthesis of Hyperthermia Arrays by the Orhtogonal Method, T. Samaras and J.N. Sahalos, I.T.B.M, Vol. 17, No. 4, pp. 281-291, Sept. 1996.
  16. Analysis of the Orthogonal Method of Moments, J.N. Sahalos, NATO ASI, 1997.
  17. The Orthogonal Method for the Geometry Synthesis of a Linear Antenna Array, G. Miaris and J.N. Sahalos, IEEE Ant. and Prop. Magazine, Vol. 41, No. 1, pp. 96-99, Feb. 1999.
  18. On the Design of Conformal Microstrip Antenna Arrays by the Orthogonal Method, C. Tsironas, T.N. Kaifas and J.N. Sahalos, Proc. of the 7th International Conference on Advances in Communications and Control (COMCON7) - Telecommunications / Signal Processing, June 1999.
  19. OrthoSynthesis: On the Beamforming from a set of Uniform Linear Arrays by the Orthogonal Method, G. S. Miaris, H. Margaritis, S. Goudos and J. N. Sahalos, AP 2000 Millennium Conference on Antennas & Propagation, Davos (Switzerland), April 2000.
  20. On the Design of Cylindrical Conformal Microstrip Antenna Arrays, T. N. Kaifas and J. N. Sahalos, 2nd Int. Symp. of BSUAE, Xanthi (Greece), June 2000.
  21. On the Independent Amplitude Level Reduction of a Broadside Linear Array by the Orthogonal Method, G. S. Miaris and J. N. Sahalos, 2nd Int. Symp. of BSUAE, Xanthi (Greece), June 2000.
  22. On the Quantized Excitation and the Geometry Synthesis of a Linear Array by the Orthogonal Method, S. Goudos, G. S. Miaris and J. N. Sahalos, IEEE Trans. on AP, Vol. 49, No. 2, 2001.
  23. ORAMA - A Computer Tool for Linear Antenna Array Design, G. S. Miaris, S. K. Goudos, C. Iakovidis, E. Vafiadis and J. N. Sahalos, Proc. of the 8th International Conference on Advances in Communications and Control (COMCON8) - Telecommunications/Signal Processing, Rethymno (Greece), June 2001
  24. Orthogonal Advanced Methods for Antennas - The ORAMA Computer Tool, G.S.Miaris, S.K.Goudos, Chr.Iakovidis, E. Vafiadis and J.N.Sahalos, IEEE Ant. and Prop. Magazine, accepted for publication.
  25. On the Quantized Excitation and the Geometry Synthesis of a Linear Array by the Orthogonal Method, S. Goudos, G. S. Miaris and J. N. Sahalos, IEEE Trans. on AP, Vol. 49, No. 2, 2001.

  26. Antenna Array Synthesis by Combining the Measured Element Patterns and the Orthogonal Method, Z. D. Zaharis, E. Vafiadis and J. N. Sahalos, XXVIIth General Assembly of the International Union of Radio Science, paper 1006 (electronic format), Maastricht (Netherlands), August 2002

  27. Orthosynthesis: On the Beamforming from a Set of  Uniform Linear Arrays by the Orthogonal Method, H. Margaritis, S. K. Goudos, G. S. Miaris and J. N. Sahalos, XXVIIth General Assembly of the International Union of Radio Science, paper 767 (electronic format), Maastricht (Netherlands), August 2002

  28. ORthogonal Advanced Methods for Antennas - The ORAMA Computer Tool, G. Miaris, S. Goudos, Chr. Iakovidis, E. Vafiadis and J.N. Sahalos, IEEE Antennas and Propagation Magazine , Vol. 44, Issue 5 , Oct 2002.

 

 

 

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