Antenna and EM Modeling with MATLAB Antenna Toolbox (eBook)

SERGEY N. MAKAROV, PhD/DrSci, is a Professor in the Department of Electrical and Computer Engineering at Worcester Polytechnic Institute. VISHWANATH IYER, PhD, is a Principal Software Developer in the RF and EM group at the MathWorks, Inc. SHASHANK KULKARNI, PhD, is a Principal Software Developer and manages the EM and RF group at MathWorks India Pvt Ltd. STEVEN R. BEST, PhD, is President and Chairman of MegaWave Corporation, located in Worcester, MA.

Preface and Text Organization ix

List of Notations xiii

About the Companion Website xv

1 Antenna Circuit Model. Antenna Matching. Antenna Bandwidth 1

Section 1 Lumped Circuit Model of an Antenna. Antenna Input Impedance 1

Section 2 Antenna with Transmission Line. Antenna Reflection Coefficient. Antenna Matching. VSWR 18

2 Receiving Antenna: Received Voltage, Power, and Transmission Coefficient 31

Section 1 Analytical Model for the Receiving Antenna 31

Section 2 Model of a Two-Port Network for TX/RX Antennas 44

3 Antenna Radiation 55

Section 1 Maxwell Equations and Boundary Conditions 55

Section 2 Solution for Maxwell's Equations in Terms of Electric and Magnetic Potentials 63

Section 3 Antenna Radiation 71

Section 4 Antenna Directivity and Gain 84

4 Antenna Balun. Antenna Reflector. Method of Images 101

Section 1 Antenna Balun 101

Section 2 Antenna Reflector 116

5 Dipole Antenna Family: Broadband Antennas that Operate as Dipoles at Low Frequencies 135

Section 1 Broadband Dipoles and Monopoles 135

Section 2 Biconical, Wide Blade, and Vivaldi Antennas 141

6 Loop Antennas 155

Section 1 Loop Antenna vs. Dipole Antenna 155

7 Small Antennas 171

Section 1 Fundamental Limits on Antenna Bandwidth 171

Section 2 Practical Antenna Matching and Tuning for a Predefined (50 Omega) Impedance 185

8 Patch and PIFA Antennas 197

Section 1 Patch Antennas 197

Section 2 Planar Inverted F (PIFA) Antenna. Bandwidth Estimations 219

9 Traveling Wave Antennas 233

Section 1 Long Wire Antenna and Yagi-Uda Antenna 233

Section 2 Helical and Spiral Antennas 241

10 Antenna Designer Including Circularly Polarized Antennas 251

Section 1 Fast Analysis and Design of Individual Antennas 251

Section 2 Meaning of Circular Polarization and Proper Antenna Orientation 259

11 Antenna Arrays 271

Section 1 Array Types. Array Factor. Concept of a Scanning Array 271

Section 2 Linear Arrays 287

Section 3 Planar Arrays 303

Index 317