Ultra-Wideband, Short-Pulse Electromagnetics 6

ISBN-13: 9780306474811 / Angielski / Twarda / 2003 / 598 str.

Eric L. Mokole; Mark Kragalott; Karl R. Gerlach

Opis

The Sixth Conference on Ultra-Wideband, Short-Pulse Electromagnetics (UWB SP6), chaired by Eric Mokole of the United States Naval Research Laboratory (NRL) and hosted by the NRL and the United States Naval Academy (USNA), was held at the USNA in Annapolis Maryland (USA) from 3-7 June 2002. UWB SP6 was part of the AMEREM 2002 Symposium, chaired by Terence Wieting of the NRL. AMEREM 2002 continued the series of international conferences that were held in: Brooklyn New York at the Polytechnic University in 1992 and 1994; Albuquerque New Mexico in 1996 as part of AMEREM '96; Tel-Aviv Israel in 1998 as part of EUROEM '98; and Edinburgh Scotland in 2000 as part of EUROEM 2000. The next conference (UWB SP7) will be held from 12-16 July 2004 at Otto von Guericke University in Magdeburg Germany (EUROEM 2004) and will be chaired by Frank Sabath. The purpose of these meetings is: to focus on advanced technologies for the generation, radiation, and detection of ultrawideband (UWB) short-pulse signals, taking into account their propagation about, scattering from, and coupling to targets and media of interest; to report on developments in supporting mathematical and numerical methods; and to describe current and potential future applications of the technology. The session topics of UWB-SP6 included electromagnetic theory, scattering, UWB antennas, UWB systems, ground penetrating radar (GPR), pulsed, . power generation, time-domain computational electromagnetics, UWB compatibility, target detection and discrimination, propagation through dispersive media, and wavelet and multi-resolution techniques

Spis treści

Electromagnetic Theory.- Group Delay Description For Broadband Pulses.- Two-Dimensional Narrow-Waisted Gaussian Beam Analysis of Pulsed Propagation From Extended Planar One-Dimensional Aperture Field Distributions Through Planar Dielectric Layers.- Axial Scattering from Thin Cones.- An Observation Concerning the Entire Function in SEM Scattering.- Two Methods for Profile Reconstruction in Scattering Theory.- Object Impulse Response Evaluation for Ultra Wideband Application.- The Life and Times of a Sea Spike: A Study of Wideband Sea Clutter at High Range Resolutions and Very Low Grazing Angles.- A Full Wave Approach to Electromagnetic, Scattering by Nanostructures with Small and Large Scale Periodic and Random Rough Surfaces and Lateral Fluctuations in the Permittivity and Permeability.- Frame-Based Beam-Summation Algorithms for Ultra Wideband Radiation from Extended Apertures Part I: Formulations in the Multi-Frequency Domain.- Frame-Based Beam-Summation Algorithms for Ultra Wideband Radiation from Extended Apertures Part II: Time Domain Formulation.- Dispersive Media Propagation.- Pulse Centrovelocity: Asymptotic and FFT Results.- Reversible and Irreversible Processes in Dispersive/Dissipative Optical Media: Electro-Magnetic Free Energy and Heat Production.- Fast Time-Domain Integral Equation Approach for Wide-Band Pulse Propagation in Dispersive Media.- Effect of the Inversion Symmetry of Dispersion Relations on Four-Wave Interactions in Photonic Crystals.- A Finite-Difference-Time-Domain/Perfectly-Matched-Layer Algorithm Applied for Nonlinear Dispersive Media.- Focusing of Ultra-Wideband Composite X-Waves.- Multi-Resolution Homogenization (MRH) for Short Pulse Fields and for Fault Interrogation in complex Laminates.- Foilage Penetration Stripmap SAR Imaging using UWB Random Noise Waveform.- Time-Domain Computational Techniques.- Iterative Solution of Field Problems with a Varying Physical Parameter.- A New FDTD Solution Method Without a Marching-On-In-Time Scheme using Laguerre Polynomials.- Time-Domain Integral-Equation-Based Solver for Transient and Broadband Problems in Electromagnetics.- Efficient Mixed Finite Elements for Maxwell’s Equations in Time Domain.- Solution and Stability Analysis of a New Integral Equation for the Transient Scattering by a Flat, Rectangular Conducting Plate.- Antennas.- Reshaping the Aperture Fields in Impulse Radiating Antennas and Oscillator Reflector Antennas.- Optimization of Impulse Radiating Antennas.- Electromagnetic Lens Design.- Location and Orientation of Electrically Small Transmitting and Receiving Antenna Pairs with Common Linear Polarization and Beam Direction for Minimal Mutual Coupling.- The Role of Mutual Coupling in a 5:1 Bandwidth Stripline Notch Array.- UWB Antenna Characterization and Optimization Methodologies.- Optimized Ultra-Wideband Radiation of Dipole Antennas with Triangle Driving Pulses.- Analytical, Numerical, and Experimental Results for Wide-Angle Biconical Antennas.- Ultrawideband Transmitting Antennas, Arrays, and High-Power Radiation Sources.- Pulsed Power.- Recent Developments in Ultra-Wideband Sources and Antennas.- Design and Development of a High Voltage Coaxial Hydrogen Switch.- Progress in Development and Characterization of Photoconductively-Switched Stacked Blumlein Devices Producing High Power Nanosecond Pulses.- The Effects of Passivation Layers on the Response of Phtoconductive Switches for Ultra Wideband High Power Microwave Appliactions.- Nanosecond Pulsed Breakdown for Point-Plane Geometries at Moderate Voltage.- Design and Testing of a Compact Sub-GW, Subnanosecond Pulser.- Resonance Pulse Compression as an Effective Method for Generation of UWB High Repetitive Microwave Pulses.- Information Extraction.- Excitation of Sub-Structure Resonances Using a T-Pulse.- Exploiting Early Time Response Using the Half Fourier Transform (HFT).- Detection of a Buried Object with Pulse-Compressed Wire Antennas.- Target Recognition Via Late Time Scattering.- Detection of Wires Using UWB Radar.- Comparison of Time, Frequency and Time-Frequency Analysis of Back-Scattered Echoes from Radar Targets Buried in Realistic Half-Spaces.- Detection of Targets Behind Walls Using Ultra Wide Band Short Pulse.- Radar Systems.- Integrated Digital UWB-Radar.- Vector Receiving Antenna for Ultrawideband Radar Polarimetry.- Very High Voltage Divider with Large Bandwidth.- An UWB Radar Based Stealthy ‘Lie Detector’.- Electromagnetic Compatibility (EMC) of Ultra Wideband (UWB) Short-Pulse Systems in Military Environments.- Design and Testing of a 1–3 GHz SFCW Ground Penetrating Radar.- High Resolution Imaging Using a SFCW GPR.- Radar Detection and Imaging of Buried Objects.- Author Index.