Practical_Antenna_Handbook_0071639586

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I n d e x 759 reactance: cancellation, 534–535 Smith chart, 564–566 transmission line, 140–142 (See also capacitive reactance; inductive reactance) real estate agents, 702 real estate search suggestions, 703–704 Reber, Grote, 497 receiving antennas for HF/MF, 331–361, 415, 423 receiving arrays, 161 reciprocity, 138, 331, 471, 478 recombination, 22, 26, 52–53 rectangular waveguide, 449–451 reflected current, 99 reflected power (P REF ), 134 reflected voltage, 99 reflected waves, 99–100, 121–133 reflection, 22–23, 45 reflection coefficient (γ), 31 Smith chart, 570–572, 579 transmission lines, 124, 126 reflection loss, 578–579 reflector (parasitic element), 162, 280 reflector antennas, 480–481 refraction, 22–23, 33 index of, 33 refractivity (N), 34–35 remotely tuned: ATU, 534 small loop antennas, 349–351 repeaters, 390 resistance, 82–83 (See also Smith chart) resistor, 82–83 resonance, 85 dipole, 106, 177, 184–187 resonant vs. nonresonant Âlong-Âwires, 256–258 restrictive covenants (CC&Rs), 363, 703 homeowners’ association, 703 return loss, 571, 573, 577, 579 RF ammeter, 604 RF noise bridge, 592–598 RF power measurements, 602–605 RF wattmeters, 603–612 rhombic beam longwire antenna, 67, 260–262 frequency range, 261 gain, 261 receive-Âonly, 261 termination, 261–262 rhombic beam longwire antenna (Cont.): tilt angle, 261–262 (See also longwire) right triangle, 717–719 hypotenuse, 717 ring antenna, 500–502 rivets, 290, 296 RLC networks, 85, 217–218, 299–300, 597 (See also trap dipoles) rotatable 20-m dipole, 287–291 rotating joints, 466–468 rotators, 663, 677–681 accessory shelf, 678 braking torque, 679 cable, 680–681 controllers, 679–681 noise, 663 prop pitch motors, 679 rotator loop, 677–678 thrust bearing, 677 “rubber ducky” VHF antennas, 528 S safety: installation projects, 426, 625–628 lightning, 683–689 microwave, 447 power distribution, 689–690 tower work, 625–628, 653, 660, 662, 663, 666, 670, 675, 677, 681 satellite communications, 6, 425, 497 scanner band VHF/UHF antennas, 196–197, 678–679 scanner skyhook VHF/UHF antennas, 439–440 scatter propagation, 71, 75, 76 seasonal variations (propagation), 52–53, 56–57, 178 second derivative, 716 selective fading, 67 sense antenna (RDF), 513, 517 series-Âfed vertical monopole, 233–234, 413–415 series feed, 244 series matching section, 145–147 series-Âresonant loop, 349–351 shadow zone, 23 shape constants (loop antennas), 345 shielded loop antennas, 352–354, 357–358 shielded parallel line, 111 shielded Âtwin-Âlead, 111
760 I n d e x shorted stubs (See stub matching systems) shortened Âcoil-Âloaded dipoles (See Âcoil-Âloaded antennas) shortened verticals (See vertically polarized antennas) short path propagation, 66–67, 71, 73–75 short skip, 59, 70 shortwave(s), 4–6, 45, 53, 520 shunt feed, 244, 408–412 side lobes, 156, 159, 477 side scatter, 75 signal-Âto-Ânoise ratio (SNR), 491, 55 simple refraction, 39 sine function, 714, 718–719 sine waves (sine curves), 712–719 single-Âsideband (SSB), 383 sinusoidal curves (See sine waves) skin effect, 115 skip distance, 48, 59 skip propagation, 59–63 skip zone, 48, 59 sky noise sources, 494–495, 498–499 sky temperature, 494–495 sky wave, 59–79, 520 sloping dipole (“sloper”), 191–193, 394 half-Âdelta sloper (HDS), 214–215 slot array, 487–489 S-Âmeter, 511–512, 518, 519 Smith, Phillip H., 559 Smith chart, 559–585 admittance, 564, 575, 579 angle of reflection coefficient circle, 567, 570, 577, 579 angle of transmission coefficient circle, 567, 570 applications, 573–585 complex admittance in, 564 complex impedance, 559, 562 constant reactance (susceptance) circles, 564–566, 574 constant resistance (conductance) circles, 562–564, 574 denormalizing impedances, 562, 575, 585 frequency response plots, 584–585 isoresistance circles, 562–564 locating impedances and admittances, 564, 568–569 loss coefficient scale, 570–573 lossy transmission lines, 582–583, 585 Smith chart (Cont.): normalizing impedances (admittances), 559–562, 574, 575, 580 pure reactance (susceptance) circle, 564, 567, 569, 582 pure resistance (conductance) line, 559, 561–562 radially scaled parameters, 567, 570–572, 582 reflection coefficient, 570–572, 579 reflection loss, 578, 579 return loss, 571, 573, 577, 579 standing wave ratio (SWR), 574–576 stub matching example, 579–582 susceptance, 580 transmission line examples, 573–579 transmission loss, 571, 573 coefficient (TLC), 571, 573, 577, 579 unit(y) resistance (conductance) circle in, 562–564, 580 voltage standing wave ratio (VSWR) circle, 564, 568, 569, 574, 579, 580, 582 wavelength calculation, 574 wavelength circles, 569 Snake (BOG) antenna, 341 soil characteristics, 37, 692–694 solar flares, 48, 57–58 solar flux index (SFI), 50 solar radiation, 48 noise, 49 particles, 48 sunspots (see sunspots) solar storms, 57–58 solder and soldering, 629–632 solid-Âstate array, 486–487 southern lights, 75–76 spark-Âgap transmitters, 4, 91 spatial diversity, 67–68, 331–332 SPC transmatch, 539 spectrograms, 498 speed of light (c), 12, 13, 93 sporadic E propagation, 57 spreaders, 110–113, 197, 219, 321–322, 324–325, stacking distance (Yagi), 309–313 stack(ing) gain (Yagi), 310–312 stagger-Âtuned dipole, 197 stainless steel hardware, 290, 296 standing wave ratio (SWR): effect on line loss, 135–138 in Smith charts, 564, 568 on transmission line, 133–135
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Practical Antenna Handbook
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Practical Antenna Handbook Joseph J
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Contents Preface . . . . . . . . .
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C o n t e n t s vii 12 The Yagi-Uda
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C o n t e n t s ix Switched-Pattern
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Preface My paternal grandfather was
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P r e f a c e xiii this book repres
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Acknowledgments As with other field
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Background and History Part I Chapt
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CHAPTER 1 Introduction to Radio Com
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C h a p t e r 1 : I n t r o d u c t
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Fundamentals Part II Chapter 2 Radi
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CHAPTER 2 Radio-Wave Propagation To
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C h a p t e r 2 : r a d i o - W a v
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R N-1 C h a p t e r 2 : r a d i o -
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Figure 2.29C Monthly averaged sunsp
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CHAPTER 3 Antenna Basics An antenna
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C h a p t e r 3 : A n t e n n a B a
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CHAPTER 4 Transmission Lines and Im
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C h a p t e r 4 : T r a n s m i s s
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Chapter 5 Antenna Arrays and Array
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C h a p t e r 5 : a n t e n n a A r
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A. B. C. D. E. F. G. H. Figure 5.9
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B. C. D. E. F. G. H. Figure 5.10 Gr
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High-Frequency Building-Block Anten
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CHAPTER 6 Dipoles and Doublets A co
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C h a p t e r 6 : D i p o l e s a n
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CHAPTER 7 Large Wire Loop Antennas
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C h a p t e r 7 : L a r g e W i r e
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CHAPTER 8 Multiband and Tunable Wir
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C h a p t e r 8 : M u l t i b a n d
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CHAPTER 9 Vertically Polarized Ante
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C h a p t e r 9 : V e r t i c a l l
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Quarter-wave vertical radiator Insu
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Directional High-Frequency Antenna
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CHAPTER 10 Wire Arrays When a singl
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C h a p t e r 1 0 : W i r e A r r a
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Wire 2 C h a p t e r 1 0 : W i r e
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CHAPTER 11 Vertical Arrays Despite
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C h a p t e r 1 1 : V e r t i c a l
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CHAPTER 12 The Yagi-Uda Beam Antenn
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C h a p t e r 1 2 : T h e Y a g i -
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CHAPTER 13 Cubical Quads and Delta
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C h a p t e r 1 3 : C u b i c a l Q
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Figure 13.5 Multiband quad “spide
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High-Frequency Antennas for Special
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CHAPTER 14 Receiving Antennas for H
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C h a p t e r 1 4 : r e c e i v i n
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351 Figure 14.12 Remote tuning sche
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CHAPTER 15 Hidden and Limited-Space
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C h a p t e r 1 5 : H i d d e n a n
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CHAPTER 16 Mobile and Marine Antenn
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C h a p t e r 1 6 : M o b i l e a n
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CHAPTER 17 Emergency and Portable A
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C h a p t e r 1 7 : E m e r g e n c
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Antennas for Other Frequencies Part
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CHAPTER 18 Antennas for 160 Meters
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C h a p t e r 1 8 : a n t e n n a s
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CHAPTER 19 VHF and UHF Antennas The
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C h a p t e r 1 9 : V H F a n d U H
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CHAPTER 20 Microwave Waveguides and
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C h a p t e r 2 0 : M i c r o w a v
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λ o = c / f 8 3× 10 m / s = 9 C h
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CHAPTER 21 Antenna Noise Temperatur
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C h a p t e r 2 1 : A n t e n n a N
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C h a p t e r 2 1 : A n t e n n a N
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CHAPTER 22 Radio Astronomy Antennas
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C h a p t e r 2 2 : R a d i o A s t
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Figure 22.9 Interferometer pattern.
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CHAPTER 23 Radio Direction-Finding
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C h a p t e r 2 3 : R a d i o D i r
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Figure 23.9 Adcock array RDF antenn
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Figure 23.11 Watson-Watt Adcock arr
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Tuning, Troubleshooting, and Design
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CHAPTER 24 Antenna Tuners (ATUs) Th
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C h a p t e r 2 4 : a n t e n n a T
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CHAPTER 25 Antenna Modeling Softwar
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C h a p t e r 2 5 : A n t e n n a M
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Figure 25.3B Bent dipole wire and s
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CHAPTER 26 The Smith Chart The math
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Figure 26.2 Normalized impedance li
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A Figure 26.3 Constant resistance c
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A Figure 26.4A Constant inductive r
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C h a p t e r 2 6 : T h e S m i t h
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D C B A Figure 26.5 Radially scaled
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0.165 Y ' 1.0 j1.1 G' 1.0 Y ' 0.2
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CHAPTER 27 Testing and Troubleshoot
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C h a p t e r 2 7 : T e s t i n g a
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Mechanical Construction and Install
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CHAPTER 28 Supports for Wires and V
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C h a p t e r 2 8 : S u p p o r t s
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CHAPTER 29 Towers At some point, th
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C h a p t e r 2 9 : T o w e r s 655
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CHAPTER 30 Grounding for Safety and
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C h a p t e r 3 0 : G r o u n d i n
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CHAPTER 31 Zoning, Restrictive Cove
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C h a p t e r 3 1 : Z o n i n g , R
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C h a p t e r 3 1 : Z o n i n g , R
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Appendices
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APPENDIX A Useful Math The material
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Page 748 and 749: Appendix B Suppliers and Other Reso
Page 750 and 751: A p p e n d i x B : S u p p l i e r
Page 760 and 761: B.1.6 Rotators and Controllers Alfa
Page 766 and 767: Index Note: Boldface numbers denote
Page 768 and 769: I n d e x 747 Binns, Jack, first ma
Page 770 and 771: I n d e x 749 dipole (Cont.): slopi
Page 772 and 773: I n d e x 751 grounding and ground
Page 774 and 775: I n d e x 753 ionospheric propagati
Page 776 and 777: I n d e x 755 maximum effective len
Page 778 and 779: I n d e x 757 noise (Cont.): sky no
Page 782 and 783: I n d e x 761 standing waves: on an
Page 784 and 785: I n d e x 763 transmission lines, 1
Page 786 and 787: I n d e x 765 vertically polarized
Page 788: I n d e x 767 Yagi antennas (Cont.)
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