| Introduction |
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vii | |
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PART 1 WIDE-RANGE ANTENNAS |
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1 Radiators with Distributed Loads |
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3 | (20) |
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1.1 Radiators with non-zero (impedance) boundary conditions---Constant surface impedance |
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3 | (5) |
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1.2 Impedance long line as an approximate equivalent of an impedance radiator |
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8 | (4) |
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1.3 Radiators with surface impedance changing along the antenna |
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12 | (7) |
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1.4 How do mistakes arise? |
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19 | (4) |
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2 Radiators with Concentrated Loads |
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23 | (27) |
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2.1 Capacitive loads and distribution of in-phase current along the radiator |
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23 | (10) |
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2.2 Creating in-phase current using the method of impedance line |
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33 | (8) |
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2.3 Creating in-phase current using the method of a metallic long line with loads |
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41 | (3) |
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2.4 Optimization of antenna characteristics by means of a mathematical programming method |
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44 | (6) |
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50 | (17) |
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3.1 Optimal matching of linear radiators with constant capacitive loads |
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50 | (6) |
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3.2 Creating a required current distribution in a given frequency range |
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56 | (2) |
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3.3 Reducing the influence of nearby metal superstructures |
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58 | (2) |
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3.4 An optimal matching of V-radiators with constant capacitive loads |
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60 | (7) |
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4 Directional Characteristics of Radiators with Capacitive Loads |
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67 | (24) |
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4.1 Calculating the directional patterns of radiators with a given current distribution |
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67 | (10) |
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4.2 Method of electrostatic analogy |
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77 | (9) |
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4.3 Decreasing dimensions of log-periodic antennas |
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86 | (5) |
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5 Adjustment of Characteristics of Self-complementary Antennas |
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91 | (19) |
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5.1 Volume self-complementary radiators |
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91 | (4) |
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5.2 Self-complementary radiators on a conic surface |
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95 | (2) |
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5.3 Self-complementary radiators on a parabolic surface |
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97 | (4) |
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5.4 Antenna on a pyramid edges |
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101 | (9) |
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6 Self-complementary Antennas with Rotation Symmetry |
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110 | (17) |
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110 | (4) |
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6.2 Procedure of calculating flat self-complementary antennas |
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114 | (5) |
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6.3 Three-dimensional antennas with rotation symmetry |
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119 | (8) |
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PART 2 MULTI-FREQUENCY ANTENNAS |
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7 Multi-wire Structures Parallel to Metal Surface |
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127 | (16) |
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7.1 Related long lines parallel to the ground |
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127 | (4) |
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7.2 Meandering loads of wire antennas |
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131 | (8) |
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7.3 Voltages and currents in meandering loads |
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139 | (4) |
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8 Folded Antennas, Perpendicular to Metal Surface |
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143 | (27) |
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8.1 Symmetrical structure |
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143 | (7) |
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8.2 Structures with wires of different length and diameter |
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150 | (6) |
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156 | (4) |
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8.4 Impedance folded radiators |
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160 | (10) |
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9 Multi-folded Antennas, Perpendicular to Metal Surface |
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170 | (21) |
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9.1 Principle of operation and method of calculation |
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170 | (6) |
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9.2 Electrical characteristics of multi-folded radiators |
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176 | (3) |
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9.3 Using multi-folded radiators in compensation devices |
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179 | (12) |
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10 Multi-wire and Multi-radiator Antennas |
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191 | (9) |
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191 | (2) |
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10.2 Multi-radiator antenna |
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193 | (7) |
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11 Multi-tiered and Log-periodic Coaxial Antennas |
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200 | (29) |
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11.1 Multi-tiered antenna |
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200 | (10) |
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11.2 Log-periodic coaxial antennas |
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210 | (19) |
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229 | (20) |
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12.1 Antenna with arbitrary single load |
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229 | (6) |
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12.2 Transparent antennas |
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235 | (5) |
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12.3 Field of a rectangular loop |
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240 | (9) |
| References |
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249 | (4) |
| Index |
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253 | |
Lisainfo e-raamatute kohta