Antenna Theory: Analysis and Design, 3rd Edition
By Constantine A. Balanis
آنتن تئوری: تجزیه و تحلیل و طراحی، 3rd ویرایش
Technique, Electronics, Radio
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Front-matter......Page 2
Preface......Page 4
Contents......Page 9
1.1 Introduction......Page 15
1.2.3 Microstrip Antennas......Page 18
1.2.4 Array Antennas......Page 19
1.2.5 Reflector Antennas......Page 20
1.3 Radiation Mechanism......Page 21
1.3.1 Single Wire......Page 23
1.3.2 Two-Wires......Page 25
1.3.3 Dipole......Page 28
1.3.4 Computer Animation-Visualization of Radiation Problems......Page 29
1.4 Current Distribution on a Thin Wire Antenna......Page 31
1.5 Historical Advancement......Page 34
1.5.1 Antenna Elements......Page 35
1.5.2 Methods of Analysis......Page 36
1.5.3 Some Future Challenges......Page 37
References......Page 38
2.2 Radiation Pattern......Page 41
2.2.1 Radiation Pattern Lobes......Page 44
2.2.2 Isotropic, Directional, and Omnidirectional Patterns......Page 46
2.2.3 Principal Patterns......Page 47
2.2.4 Field Regions......Page 48
2.2.5 Radian and Steradian......Page 50
2.3 Radiation Power Density......Page 52
2.4 Radiation Intensity......Page 54
2.5 Beamwidth......Page 56
2.6 Directivity......Page 58
2.6.1 Directional Patterns......Page 64
2.6.2 Omnidirectional Patterns......Page 69
2.7 Numerical Techniques......Page 72
2.8 Antenna Efficiency......Page 78
2.9 Gain......Page 79
2.10 Beam Efficiency......Page 83
2.12 Polarization......Page 84
2.12.1 Linear, Circular, and Elliptical Polarizations......Page 87
2.12.2 Polarization Loss Factor and Efficiency......Page 90
2.13 Input Impedance......Page 94
2.14 Antenna Radiation Efficiency......Page 99
2.15.1 Vector Effective Length......Page 101
2.15.2 Antenna Equivalent Areas......Page 103
2.16 Maximum Directivity and Maximum Effective Area......Page 106
2.17.1 Friis Transmission Equation......Page 108
2.17.2 Radar Range Equation......Page 110
2.17.3 Antenna Radar Cross Section......Page 112
2.18 Antenna Temperature......Page 118
2.19 Multimedia......Page 122
References......Page 126
Problems......Page 128
3.1 Introduction......Page 147
3.2 The Vector Potential A for an Electric Current Source J......Page 149
3.3 The Vector Potential F for a Magnetic Current Source M......Page 151
3.4 Electric and Magnetic Fields for Electric (J) and Magnetic (M) Current Sources......Page 152
3.5 Solution of the Inhomogeneous Vector Potential Wave Equation......Page 153
3.6 Far-Field Radiation......Page 156
3.8 Reciprocity and Reaction Theorems......Page 158
3.8.1 Reciprocity for Two Antennas......Page 161
3.8.2 Reciprocity for Antenna Radiation Patterns......Page 162
Problems......Page 164
4.2.1 Radiated Fields......Page 165
4.2.2 Power Density and Radiation Resistance......Page 168
4.2.3 Radian Distance and Radian Sphere......Page 170
4.2.5 Intermediate-Field (kr > 1) Region......Page 172
4.2.6 Far-Field (kr &...
کتاب Antenna Theory: Analysis and Design, 3rd Edition