Cylindrical Antennas and Arrays

ISBN-13: 9780521431071 / Angielski / Twarda / 2002 / 650 str.

Massachusetts) Ronold W. P. King (Harvard University;George J. Fikioris (National Technical University of Athens);Richard B. Mack

Opis

Cylindrical arrays lie at the heart of the antenna systems of most major radio communication systems, including broadcasting networks, cellular phone systems and radar. Here, the authors present practical theoretical methods for determining current distributions, input admittances and field patterns of a wide variety of cylindrical antennas. Key chapters cover analysis of horizontal antennas over, on and in the earth and sea; large resonant arrays of electrically short dipoles; and the theory and techniques of experimental measurement. Written by three of the leading engineers in the field, this reference is based on research carried out at Harvard over the last 40 years.

Spis treści

Preface; 1. Introduction; 2. An approximate analysis of the cylindrical antenna; 3. The two-element array; 4. The circular array; 5. The circuit and radiating properties of curtain arrays; 6. Arrays with unequal elements: parasitic and log-periodic antennas; 7. Planar and three-dimensional arrays; 8. Vertical dipoles on and over the earth or sea; 9. Dipoles parallel to the plane boundaries of layered regions; horizontal dipole over, on, and in the earth or sea; 10. Application of the two-term theory to general arrays of parallel non-staggered elements; 11. Resonances in large circular arrays of perfectly conducting dipoles; 12. Resonances in large circular arrays of highly conducting dipoles; 13. Direct numerical methods: a detailed discussion; 14. Techniques and theory of measurements; Appendices; References; List of symbols; Index.