Waves and antennas, ed. 3 updated
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  • Waves and antennas, ed. 3 updated
ID: 34517
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Jarosław Szóstka

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Author: Jarosław Szóstka

ISBN: 83-206-1626-3, 978-83-206-1626-2
Format: B5, 520 pages
Hardcover
Publisher: WKiŁ

About the book
The book contains a systematic, basic lecture on the basics of electromagnetism, antenna technology and propagation of radio waves. Maxwell's equations, flat wave properties, transmission line theory, basics of microwave technology, antenna parameters and their measurements were discussed, the antennas used in modern radiocommunication systems were reviewed and radio wave propagation was described. Preliminary information on electromagnetic compatibility was also presented as well as the influence of electric current and electromagnetic fields on the human body along with the applicable health and safety regulations.


Table of Contents:

INTRODUCTION 9

1. BASIS OF ELECTROMAGNETICISM 11
1.1. Electrostatics 11
1.2. Magnetostatyka 15
1.3. Maxwell equations 17
1.3.1. Integral form 17
1.3.2. Differential and complex form 21
1.4. Electric and magnetic polarization. Types of centers 22

2. FLAT WAVE 27
2.1. Derivation of the wave equation for vacuum 27
2.2. The general form of the wave equation. Flat wave in lossy dielectric 33
2.3. Flat wave in the guide. The skin effect 36
2.4. Polarization of flat wave 40

3. ENERGY RELATIONSHIPS IN THE ELECTROMAGNETIC FIELD 43
3.1. Energy stored in an electric and magnetic field 43
3.2. Poynting's theorem 44
3.3. Power absorbed by a good guide 48

4. WAVES ON THE BORDER OF TWO CENTERS 50
4.1. Boundary conditions for electromagnetic fields 50
4.2. The wave falling perpendicular to the border of two centers 54
4.3. The wave falling diagonally to the border of two centers 63

5. TRANSMISSION LINES TEM 73
5.1. Types of transmission lines 73
5.2. Transmission line equations 74
5.3. Transmission line as a cross-section 79
5.4. Unit parameters of transmission lines 80
5.5. Lossless lines 82
5.5.1. Parameters of lossless lines 82
5.5.2. Infinite 83
5.5.3. General case of a finite length 84 line
5.5.4. Shorted line at the end of 88
5.5.5. Line open at the end of 88
5.5.6. Connection of two transmission lines 91
5.5.7. Quarter-wave transformer 92
5.5.8. Analysis of generator mismatch and load 94
5.6. Model of transmission lines for multilayer centers 97
5.7. Lost transmission lines 100
5.7.1. Non-distorting line 103
5.7.2. The lossy line is loaded with 104
5.8. Smith Chart 109
5.9. Time analysis of waveforms in the transmission line 113
5.10. Practical considerations regarding the use of transmission lines 115

6. BASICS OF MICROWAVE TECHNIQUE 119
6.1. Types of waveguides 119
6.2. Waveguide analysis outline 121
6.3. Basic parameters of waveguides 123
6.4. Passive sub-assemblies 124
6.5. Microwave oven 126

7. INTRODUCTION TO ANTENNA TECHNOLOGY 129
7.1. Antenna as a radiation source 129
7.2. Potentials 132
7.3. Perfect Dipol 135
7.4. Parameters of antennas 144
7.4.1. Radiation characteristics 144
7.4.2. Directionality 149
7.4.3. Energy gains 153
7.4.4. Input impedance 156
7.4.5. The width of the work band 160
7.4.6. Maximum aperture and effective surface 161
7.4.7. Polarization of the antenna 164
7.4.8. Effective length 165
7.4.9. Replacement noise temperature and suitability factor 166
7.5. The principle of reciprocity 168
7.6. Antenna in the radio track 172

8. SIMPLE RADIANT STRUCTURES 176
8.1. Dipol short 176
8.2. Dipol half-wave 178
8.3. Antennas over a perfectly conductive plane (perfect earth) 181
8.4. Unipole 184
8.5. Small loop antennas 186

9. PROSTOLINIAN ANTENNA 193
9.1. Dipole 193
9.1.1. Straight dipole 193
9.1.2. Dipol loop 202
9.2. Power supply for 206 straight antennas
9.2.1. Impedance matching 206
9.2.2. Symplification 209
9.3. Antennas Yagi 214
9.4. Antennas above real earth 219

10. ANTENNA SYSTEMS 225
10.1. Coefficient of the system for linear systems 225
10.2. Main beam control and beveled systems 236
10.3. The phenomenon of super-directionality 239
10.4. Principle of character multiplication 240
10.5. Mutual impedance 241

11. OVERVIEW OF THE MOST FREQUENTLY USED ANTENN 248
11.1. Large loop antennas 248
11.2. Antennas with current wave 252
11.3. Broadband antennas 256
11.3.1. Helical antennas (helical) 256
11.3.2. Double-cone antennas 262
11.3.3. Spiral antennas 269
11.3.4. Logarithmic antennas 273
11.4. Aperture antennas 280
11.4.1. Radiation of rectangular and circular aperture 280
11.4.2. Horn antennas 285
11.4.3. Reflector antennas, 286
11.5. Slot antennas 294
11.6. Microstrip antennas 302
11.6.1. Applied power structures and methods 302
11.6.2. Analytical models 307
11.7. Lens antennas 312

12. ANTENNA IN RADIO COMMUNICATION SYSTEMS 317
12.1. Broadcasting and receiving antenna RTV 317
12.1.1. Antennas for long and medium waves 317
12.1.2. Antennas for the short wave range 321
12.1.3. Broadcast TV and FM antennas 327
12.1.4. Receiving TV and VHF antennas 330
12.2. Antennas in microwave links 334
12.3. Antennas in land mobile radiocommunication 343
12.3.1. Base station antennas 344
12.3.2. Antennas of mobile terminals 358
12.4. Practical considerations for mounting and maintaining antennas 362

13. PROPORTION OF RADIO WAVES 365
13.1. Classification of wave propagation methods 365
13.2. Basic propagation relationships 367
13.2.1. Propagation in free space 367
13.2.2. Fresnel zones 368
13.2.3. Rayleigh criterion 369
13.3. The distribution of the ground wave 370
13.3.1. Surface wave 370
13.3.2. The case of two antennas raised 373
13.4. The influence of the troposphere on the propagation of radio waves 376
13.5. The influence of ionosphere on propagation of radio waves 383
13.6. Propagation of radio waves in various frequency ranges 394
13.6.1. Propagation of long, medium and intermediate waves 394
13.6.2. Short wave propagation 396
13.6.3. Distribution of ultra-short waves and microwaves 400
13.7. Designing of radiocommunication systems 403
13.7.1. Basic concepts 403
13.7.2. Propagation models 405

14. ANTEN 410 MEASUREMENTS
14.1. Introduction 410
14.2. Radiation characteristics 411
14.3. Energy gain 413
14.4. Input impedance and WFS 415
14.5. Measurements of reduced antenna models 417

15. ELECTROMAGNETIC COMPATIBILITY 419
15.1. The scope of electromagnetic compatibility tests 419
15.2. Compatibility of radio communications systems 421
15.3. Operation of electric current on the human body and OHS while working with devices under voltage 425
15.4. Influence of the electromagnetic field on the human body 431
15.5. Radiation protection and applicable health and safety regulations and environmental protection 438
15.6. The principles of safe use of radio communication devices 450

APPENDIX 458

DICTIONARY POLISH-ENGLISH 504

DICTIONARY ENGLISH-POLISH 509

SKOROWIDZ 514

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