School of Electrical and Computer Engineering

Mahmoud Shahabadi

School of Electrical & Computer Engineering

Associate Professor

Email: Shahabad [AT] ut.ac.ir

Personal Website:

Education

Ph.D.: Electrical Engineering, Technische Universitaet Hamburg-Harburg,1998
M.Sc.: Electrical Engineering, University of Tehran, 1991
B.Sc.: Electrical Engineering, University of Tehran, 1988

Research Interests

Left-handed materials and their applications
Antenna theory and design
Passive millimeter-wave and microwave components
Wave propagation in wireless communication systems
Active microwave circuits
Application of holography in millimeter-wave engineering
Photonic crystals and their applications

Current Researches

Nano Optics
Computational electromagnetics for periodic structures
Metamaterials for microwave engineering
High-efficiency planar antennas
Plasmonics in microwave engineering
Active and passive circuits using Substrate Integrated Waveguide (SIW) technology
Channel models for wireless communications

Courses

Theory of Electromagnetics I
Fundamentals of Photonics
Microwave II
Active Microwave Circuits
Wave Propagation in Wireless Communications
Fourier Optics
Optical Fibers
Electromagnetics
Antenna I
Microwave I
Physics II
Circuit Theory I

Selected Publications

1) M. Vahidpour and M. Shahabadi, "Existence of complex modes in gratings composed of left-handed materials," IEEE AP-Symposium, July 2005, Washington, USA.

2) M. Shahabadi and K. Schuenemann, "Excitation of Periodic Structures by Non-Uniform Electromagnetic Beams," 20th Antenna Workshop on Millimeter-Wave Antenna Technology and Antenna Measurement, Noordwijk, the Netherlands, June 1997, pp.99-104.

3) M. Shahabadi, K. Schuenemann, and H.-G. Unger, "A High-Efficiency Millimeter-Wave Holographic Power Splitter/Combiner," IEEE MTT-S Int. Microwave Symposium, Denver USA, June 1997, pp. 576-ff

4) M. Shahabadi and K. Schuenemann, "Millimeter-Wave Multi-Element Frequency Multiplication Using Holographic Power Splitting/Combining," 23rd Int. and Millimeter Waves, Essex, UK, Sep. 1998, pp. 50-ff.

5) M. Shahabadi and K. Schuenemann, "Millimeter-wave holographic power splitting/combining," IEEE Trans. Microwave Theory Tech., vol. MTT-45, pp. 2316-2323, Dec. 1997.

6) M. Shahabadi, D. Busuioc, A. Borji, and S. Safavi-Naeini, "Low-cost, high-efficiency quasi-planar array of waveguide-fed circularly polarized microstrip antennas," IEEE Trans. Antennas Propagat., vol. 53, no. 6, pp. 2036-2043, June 2005.

7) M. Shahabadi, S. Atakaramians, and N. Hojjat, "Transmission line formulation for the full-wave analysis of two-dimensional dielectric photonic crystals," IEE Proc.-Sci. Meas. Technol., vol. 151, pp. 327-334, Sept. 2004.

8) P. Sedighian, M. Shahabadi, and J.A. Salehi, "Application of equal-weight orthogonal signalling to non-directed wireless infrared CDMA networks," IEE Electronics Letters, vol. 38, pp. 804 -805, Issue: 15, 18, Jul. 2002.

9) Z. Ghatan Kashani, N. Hojjat, and M. Shahabadi, "Full-wave analysis of coupled waveguides in a two-dimensional photonic crystal," Progress In Electromagnetics Research, vol. PIER 49, pp. 291-307, 2004.

10) S. Atakaramians, N. Hojjat, and M. Shahabadi, "A new method for calculating propagation modes of a one-dimensional photonic crystal," International Journal of Engineering, Transactions A, vol. 17, no. 1, pp. 19-22, Feb. 2004.

11) K. Zamani Aghaie and M. Shahabadi, "Perturbation analysis of plane-wave transmission through a dielectric slab with Kerr-type nonlinearity," Optics Express, 2005.

12) M. Akbari, M. Shahabadi, and K. Schuenemann, "A rigorous two-dimensional field analysis of DFB structures," Journal of Electromagnetic Waves and Applications, vol. 13, pp. 879 ff, 1999.

13) Z. Ghattan, T. Hasek, M. Shahabadi, and M. Koch, "Coupling of free space sub-terahertz waves into dielectric slabs using PC waveguides," OPTICS EXPRESS, vol. 16, no. 9, pp. 6112-6118, Apr. 2008.

14) G. Ghazi, and M. Shahabadi, "Modal analysis of extraordinary transmission through an array of subwavelength slits," PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, vol. 79, pp. 59-74, 2008.

15) M. Yousefbeigi, A. Enayati, M. Shahabadi, and D. Busuioc, "Parallel-series feed network with improved G/T performance for high-gain microstrip antenna arrays," ELECTRONICS LETTERS, vol. 44, no. 3, pp. 180-181, Jan. 2008.

16) B. Khadem-Hosseinieh, Y. Komijani, R. Faraji-Dana, and M. Shahabadi, "Using photon wave function for the time-domain analysis of electromagnetic wave scattering," PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, vol. 76, pp. 397-412, 2007.

17) A. Enayati, K. Z. Aghaie, A. Fallahi, M. Shahabadi, and N. Granpayeh, "Prediction and veri. cation of negative refraction in a two-dimensional photonic crystal slab using a rigorous semi-analytical approach," JOURNAL OF MODERN OPTICS, vol. 54, no. 12, pp. 1793-1802, 2007.

18) A. Fallahi, K. Z. Aghaie, A. Enayati, and M. Shahabadi, "Diffraction analysis of periodic structures using a transmission-line formulation: Principles and applications," JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE, vol. 4, no. 3, pp. 649-666, May 2007.

19) N. Talebi, and M. Shahabadi, "Application of generalized multipole technique to the analysis of discontinuities in substrate integrated waveguides," PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, vol. 69, pp. 227-235, 2007.

20) K. Z. Aghaie, M. Rabbani, and M. Shahabadi, "Multiple-scale analysis of optical bistability in semiconductor periodic structures." JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, vol. 24, no. 4, pp. 887-894, Apr. 2007.

21) N. Talebi, M. Shahabadi, and C. Hafner, "Analysis of a lossy microring using the generalized multipole technique," PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, vol. 66, pp. 287-299, 2006.

22) N. Ranjkesh, and M. Shahabadi, "Reduction of dielectric losses in substrate integrated waveguide," ELECTRONICS LETTERS, vol. 42, no. 21, pp. 1230-1232, Oct. 2006.

23) M. A. Boroujeni, and M. Shahabadi, "Modal analysis of multilayer planar lossy anisotropic optical waveguides," JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, vol. 8, no. 10, pp. 856-863, Oct. 2006.

24) M. A. Boroujeni, and M. Shahabadi, "Full-wave analysis of lossy anisotropic optical waveguides using a transmission line approach based on a Fourier method," JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, vol. 8, no. 12, pp.1080-1087, Dec. 2006.

25) D. Busuioc, M. Shahabadi, and S. Safavi-Naeini, "Hybrid Ku-band low-noise amplifier for mobile DBS active phased-array antennas," INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, vol. 16, no. 6, pp. 573-583, Nov 2006.

26) K. Z. Aghaie, and M. Shahabadi, "Multiple-scale analysis of plane wave refraction at a dielectric slab with Kerr-type nonlinearity," PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, vol. 56, pp. 81-92, 2006.

27) M. Mohammadzadeh, M. Shahabadi, H. Soltanian-Zadeh, A. Tavakoli, B. Rafiei, D. Javidnia, and M. A. Oghabian, "High SNR flexible top hat monopole probe for 1.5 T MRI," MEASUREMENT SCIENCE & TECHNOLOGY, vol. 17, no. 7, pp. 1987-1994, Jul. 2006.

28) N. Talebi, and M. Shahabdi, "Analysis of the propagation of light along an array of nanorods using the generalized multipole techniques," J. Comput. Theor. Nanosci., Vol. 5, no. 4, pp. 711-716, 2008.