Applied Electromagnetics: Early Transmission Lines Approach
By: Stuart M. Wentworth (author)Hardback
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STUDENT COMPANION SITE Every new copy of Stuart Wentworth's Applied Electromagnetics comes with a registration code which allows access to the Student's Book Companion Site. On the BCS the student will find: Detailed Solutions to Odd-Numbered Problems in the text Detailed Solutions to all Drill Problems from the text MATLAB code for all the MATLAB examples in the text Additional MATLAB demonstrations with code. This includes a Transmission Lines simulator created by the author. Weblinks to a vast array of resources for the engineering student. Go to www.wiley.com/college/wentworth to link to Applied Electromagnetics and the Student Companion Site. ABOUT THE PHOTO Passive RFID systems, consisting of readers and tags, are expected to replace bar codes as the primary means of identification, inventory and billing of everyday items. The tags typically consist of an RFID chip placed on a flexible film containing a planar antenna. The antenna captures radiation from the reader's signal to power the tag electronics, which then responds to the reader's query.
The PENI Tag (Product Emitting Numbering Identification Tag) shown, developed by the University of Pittsburgh in a team led by Professor Marlin H. Mickle, integrates the antenna with the rest of the tag electronics. RFID systems involve many electomagnetics concepts, including antennas, radiation, transmission lines, and microwave circuit components. (Photo courtesy of Marlin H. Mickle.)
Stuart M. Wentworth received his B.S. degree in Chemical Engineering from Auburn University, Alabama, in 1982 and his M.S. (1987) and Ph.D. (19990) degrees in Electrical Engineering from the University of Texas at Austin. he has been a member of the Electrical & Computer Engineering faculty at Auburn University, Alabama since 1990. Dr. Wentworth's research has focused on the high frequency characterization of materials used for electronics packaging. He is the author of Fundamentals of Electromagnetics with Engineering Applications (Wiley). Dr. Wentworth has received numerous teaching awards at Auburn University, including the Birdsong Merit Teaching Award in 1999. He is a Senior member of the Institute of Electrical and Electronics Engineers (IEEE).
CHAPTER 1. Introduction. 1.1 Electromagnetic Fields. Electric Fields. Magnetic Fields. Field Linkage. 1.2 The Electromagnetic Spectrum. 1.3 Wireless Communications. 1.4 Dealing with Units. 1.5 Working with MATLAB. MATLAB Programs. 1.6 Wave Fundamentals. 1.7 Phasors. Summary. Problems. CHAPTER 2. Transmission Lines. 2.1 Distributed-Parameter Model. Coaxial Cable. Telegraphist's Equations. 2.2 Time-Harmonic Waves on Transmission Lines. Characteristic Impedance. Lossless Line. 2.3 Power Transmission. 2.4 Terminated T-Lines. Voltage Standing Wave Ratio. Input Impedance. Complex Loads. Special Terminations. 2.5 The Complete Circuit. 2.6 The Smith Chart. Smith Chart Derivation. Using the Smith Chart. Impedance Measurement. 2.7 Impedance Matching. Quarter-Wave Transformer. Matching with the Smith Chart. Admittance of Shunt Stubs. Shunt Stub Matching. 2.8 Transients. Pulse Response. Practical Application: Schottky-Diode Terminations. Reactive Loads. Time-Domain Reflectometry. 2.9 Dispersion. Summary. Problems. CHAPTER 3. Electrostatics. 3.1 Vectors in the Cartesian Coordinate System. 3.2 Coulomb's Law. Electric Field Intensity. Field Lines. 3.3 The Spherical Coordinate System. 3.4 Line Charges and the Cylindrical Coordinate System. Infinite Length Line of Charge. Ring of Charge. 3.5 Surface and Volume Charge. Volume Charge. Practical Application: Laser Printer. 3.6 Electric Flux Density. 3.7 Gauss's Law and Applications. Coaxial Cable. 3.8 Divergence and the Point Form of Gauss's Law. 3.9 Electric Potential. Gradient. 3.10 Conductors and Ohm's Law. Current and Current Density. Joule's Law. 3.11 Dielectrics. Practical Application: Electret Microphone. 3.12 Boundary Conditions. 3.13 Boundary Value Problems. 3.14 Capacitance. Electrostatic Potential Energy. Practical Application: Electrolytic Capacitors. Summary. Problems. CHAPTER 4. Magnetostatics. 4.1. Magnetic Fields and Cross Product. Oersted's Experiment. 4.2 Biot-Savart's Law. Solenoid. Surface and Volume Current Densities. 4.3 Ampe're's Circuital Law. 4.4 Curl and the Point Form of Ampe're's Circuital Law. Stoke's Theorem. 4.5 Magnetic Flux Density. 4.6 Magnetic Forces. Force on a Current Element. Magnetic Torque and Moment. Practical Application: Loudspeakers. 4.7 Magnetic Materials. 4.8 Boundary Conditions. 4.9 Inductance and Magnetic Energy. Mutual Inductance. Magnetic Energy. 4.10 Magnetic Circuits. Electromagnets. Practical Application: Maglev. Summary. Problems. CHAPTER 5. Dynamic Fields. 5.1 Current Continuity and Relaxation Time. 5.2 Faraday's Law and Transformer EMF. Transformer EMF. Transformers. Point Form of Faraday's Law. 5.3 Faraday's Law and Motional EMF. Generators. 5.4 Displacement Current. 5.5 Maxwell's Equations. 5.6 Lossless TEM Waves. 5.7 Time-Harmonic Fields and Phasors. Summary. Problems. CHAPTER 6. Plane Waves. 6.1 General Wave Equations. Time-Harmonic Wave Equations. Propagating Fields Relation. 6.2 Propagation in Lossless, Charge-Free Media. 6.3 Propagation in Dielectrics. Low-Loss Dielectrics. Loss Tangent. 6.4 Propagation in Conductors. Current in Conductors. 6.5 The Poynting Theorem and Power Transmission. UPW Power Transmission. 6.6 Polarization. Practical Application: Liquid Crystal Displays. 6.7 Reflection and Transmission at Normal Incidence. General Case. Standing Waves. 6.8 Reflection and Transmission at Oblique Incidence. TE Polarization. TM Polarization. Summary. Problems. CHAPTER 7. Waveguides. 7.1 Rectangular Waveguide Fundamentals. Wave Propagation. Waveguide Impedance. Practical Application: Microwave Ovens. 7.2 Waveguide Field Equations. TM Mode. TE Mode. 7.3 Dielectric Waveguide. TE Mode. TM Mode. Field Equations. 7.4 Optical Fiber. Numerical Aperture. Signal Degradation. Attenuation. Graded-Index Fiber. 7.5 Fiber-Optic Communication Systems. Optical Sources. Optical Detectors. Repeaters and Optical Amplifiers. Connections. 7.6 Optical Link Design. Power Budget. Rise-Time Budget. Summary. Suggested References. Problems. CHAPTER 8. Antennas. 8.1 General Properties. Radiated Power. Radiation Patterns. Directivity. Impedance and Efficiency. A Commercial Antenna. 8.2 Electrically Short Antennas. Vector Magnetic Potential. The Hertzian Dipole. The Small Loop Antenna. 8.3 Dipole Antennas. Derivation of Fields. Antenna Properties. Half-Wave Dipole. 8.4 Monopole Antennas. Image Theory. Antenna Properties. Practical Considerations. 8.5 Antenna Arrays. Pair of Hertzian Dipoles. N-Element Linear Array. Parasitic Arrays. 8.6 The Friis Transmission Equation. Polarization Efficiency. Receiver Matching. 8.7 Radar. Doppler Frequency Shift. 8.8 Antennas for Wireless Communications. Parabolic Reflectors. Patch Antennas. Slot Antennas. Folded Dipole Antennas. Summary. Suggested References. Problems. CHAPTER 9. Electromagnetic Interference. 9.1 Interference Sources. Lightning. Electrostatic Discharge. Power Disturbance Sources. Radio Transmitters. 9.2 Passive Circuit Elements. Conductors. Resistors. Inductors. Capacitors. 9.3 Digital Signals. 9.4 Grounds. Bond Wires. Signal Grounds. Loop Area. 9.5 Shields. Shielded Cable. 9.6 Filters. Reflective Filters. Ferrite Chokes. Summary. Suggested References. Problems. CHAPTER 10. Microwave Engineering. 10.1 Microstrip. Attenuation. Other Planar T-Lines. 10.2 Lumped-Element Matching Networks. 10.3 Scattering Parameters. Reciprocal Networks. Lossless Networks. Return Loss and Insertion Loss. Shift in Reference Plane. The Vector Network Analyzer. 10.4 Couplers and Dividers. Circulators. Three-Port Dividers. Couplers. 10.5 Filters. Simple Filters. Multisection Filters. High-Pass Filters. Bandpass Filters. 10.6 Amplifiers. Designing Matching Networks. Balanced Amplifiers. 10.7 Receiver Design. Oscillators. Mixers. Microwave CAD. Practical Application: Radio Frequency Identification. Summary. Suggested References. Problems. APPENDIX A. Vector Relations 614 APPENDIX B. Coordinate System Transformations. APPENDIX C. Complex Numbers. APPENDIX D. Integrals, Conversions, and Constants. APPENDIX E. Material Properties. APPENDIX F. CommonMATLABMath Functions. APPENDIX G. Answers to Selected Problems. INDEX.
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