ELECTROMAGNETIC WAVES PIERM 12. Progress In Electromagnetics Research M

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1 ELECTROMAGNETIC WAVES PIERM 12 Progress In Electromagnetics Research M

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3 ELECTROMAGNETIC WAVES PIERM 12 Progress In Electromagnetics Research M Chief Editor: Weng Cho Chew EMW Publishing Cambridge, Massachusetts, USA

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5 CONTENTS A CELL-VERTEX FINITE VOLUME TIME DOMAIN METHOD FOR ELECTROMAGNETIC SCATTERING N. Deore and A. Chatterjee 1 Introduction Governing Equations Numerical Technique Numerical Results-2D Scattering from 3D Bodies Conclusion SYNTHESIS AND INVESTIGATION OF THREE- SECTION MICROSTRIP FILTER ON FOLDED DUAL-MODE STEPPED-IMPEDANCE RESONATORS I. A. Dovbysh and V. V. Tyurnev 1 Introduction Filter Structure and Simulation Model Intelligence Optimization Comparison of Theory with Experiment Investigation of the Filter Conclusion A HYBRID MM/COMPACT 2-D FDFD METHOD FOR RECTANGULAR RIDGED WAVEGUIDE DISCONTINUITIES W. Zhao, Y.-J. Zhao, H.-W. Deng, D.-W. Zhang, and B. Liu 1 Introduction Theory Numerical Results Conclusion v

6 ELECTROMAGNETIC BANDGAP ANALYSIS OF 1D MAGNETIZED PPC WITH OBLIQUE INCIDENCE L. Yang, Y. Xie, P. Yu, and G. Wang 1 Introduction M-FDTD Iterative Formula in the Oblique Incidence Situation 40 3 Revision of Mur ABC and CB Validation of Modified FDTD Algorithm Bandgap Analysis of Magnetized PPC for Oblique Incidence 46 6 Conclusion SHIFT-OPERATOR FDTD METHOD FOR ANISO- TROPIC PLASMA IN kdb COORDINATES SYSTEM L.-X. Ma, H. Zhang, H.-X. Zheng, and C.-X. Zhang 1 Introduction Constitutive Relations for Anisotropic Plasma in kdb Coordinates System SO-FDTD Method In kdb Coordinates System Numerical Examples and Discussion Conclusion EFFECTIVE PLASMA FREQUENCY FOR TWO- DIMENSIONAL METALLIC PHOTONIC CRYSTALS K. L. Low, M. Z. Mat Jafri, and S. A. Khan 1 Introduction Method Results and Discussion Conclusion ON THE DISTRIBUTION OF CURRENT ON AN OPEN TAPE HELIX N. Kalyanasundaram, G. Naveen Babu, and R. Tulsian 1 Introduction Review of Basic Theory Numerical Computation of the Tape-current Distribution Discussion and Conclusions vi

7 CHARACTERIZATION OF THE REGULAR POLY- GONAL WAVEGUIDE FOR THE RF EM SHIELDING APPLICATION B. Ravelo and B. Mazari 1 Introduction Analytical Description Simulation Results Conclusion SELF-CONSISTENT APPROACH TO THE ELECTRO- DYNAMIC ANALYSIS OF THE CHIRAL STRUCTURES V. A. Neganov, D. P. Tabakov, and I. M. Gradinar 1 Introduction Rigorous Algorithm for the Analysis of the Chiral Structures Diffraction of a Plane Electromagnetic Wave H -polarization on the Perfectly Conducting Cylindrical Open Ring Conclusion ANALYSIS OF SELF-COLLIMATION BASED CAVITY RESONATOR FORMED BY PHOTONIC CRYSTAL N. Yogesh and V. Subramanian 1 Introduction Band Structure and Self-collimation for Formation of Open Cavity Characterization Time Domain Studies on Field Components Inside the Cavity Conclusion PATH LOSS MODELING FOR NEAR-GROUND VHF RADIO-WAVE PROPAGATION THROUGH FORESTS WITH TREE-CANOPY REFLECTION EFFECT Y. S. Meng, Y. H. Lee, and B. C. Ng 1 Introduction Ray Tracing and Problem Formulation Measurements and Verifications Conclusions vii

8 NEW FORMULAS FOR THE REFLECTION COEFFICIENT OF AN OPEN-ENDED RECTANGULAR WAVEGUIDE RADIATING INTO AIR INCLUDING THE EFFECT OF WALL THICKNESS OR FLANGE J.-H. Kim, B. Enkhbayar, J.-H. Bang, B.-C. Ahn, and E.-J. Cha 1 Introduction Reflection Coefficient of an OERW With a Wall of Finite Thickness Reflection Coefficient of an OEWG with a Flange Conclusion COUPLING BETWEEN AN IRRADIATED APERTURE AND MONOPOLE ANTENNAS INTO A COMPLEX ENCLOSURE F. Caudron, A. Ouslimani, R. Vézinet, A. Kasbari, J.-L. Lavergne and J.-S. Borrod 1 Introduction Determination of the Impedance of the Aperture Theoretical and Experimental Results Conclusion NUMERICAL AND EXPERIMENTAL ANALYSIS OF ELECTROMAGNETIC TORQUE FOR MODULAR TOR- OIDAL COIL APPLICABLE TO TOKAMAK REACTORS M. R. Alizadeh Pahlavani, A. Shiri, and A. Shoulaie 1 Introduction Coordinate System and Longitudinal Components Analytical Equations of Mutual Inductance Confirmation of Numerical Results Using Experimental Results173 5 The Analytical Equations of Electromagnetic Torque Validity of the Analytical Equations of Electromagnetic Torque Using Virtual Work Theorem Conclusion viii

9 INVESTIGATION OF ELECTROMAGNETIC SHIELDING ROOMS WITH METAL CABINET AND APERTURE S. M. J. Razavi and M. Khalaj-Amirhosseini 1 Introduction Modeling Technique Results Conclusion ON DEVELOPING ALTERNATING VOLTAGE AROUND A ROTATING CIRCULAR RING UNDER PLANE WAVE EXCITATION IN THE PRESENCE OF AN ECCENTRI- CALLY POSITIONED METALLIC CORE C. A. Valagiannopoulos 1 Introduction Mathematical Formulation Numerical Results Conclusion THREE-DIMENSIONAL ELECTROMAGNETIC DIFFRA- CTION BY A SLOT SYSTEM WITH PARALLEL PLANE DIELECTRIC INTERFACES V. M. Serdyuk and J. A. Titovitsky 1 Introduction General Representation of Electromagnetic Fields for Threedimensional Diffraction Problems Three-dimensional Diffraction by a Slot in a Thin Conducting Screen Spaced Apart from Half-infinite Dielectric Conclusion PARALLEL MOM SOLUTION OF JMCFIE FOR SCATTERING BY 3-D ELECTRICALLY LARGE DIELECTRIC OBJECTS Z.-W. Cui, Y.-P. Han, Q. Xu, and M.-L. Li 1 Introduction JMCFIE Formulation and Its Discretization Conjugate Gradient Method and Its Parallelization Numerical Results and Discussions Conclusion ix

10 A NOVEL PHASE RETRIEVAL APPROACH FOR ELECTROMAGNETIC INVERSE SCATTERING PROBLEM WITH INTENSITY-ONLY DATA Y. Xiang, L. L. Li, and F. Li 1 Introduction Recover Phase Information from Amplitude-only Measurement231 3 Simulation and Experiment Validation Conclusion Appendix A CAD MODEL TO COMPUTE THE INPUT IMPEDANCE OF AN EQUILATERAL TRIANGULAR MICROSTRIP PATCH ANTENNA WITH RADOME M. Biswas and A. Mandal 1 Introduction Theoretical Formulations Results and Discussions Conclusions x