19 MAUTZ, J.R., and HARRINGTON, R.F.: 'Computer programs for H-field, E-field, and combined field solutions for bodies of revolution'. Dept. of Electrical and ...
19 MAUTZ, J.R., and HARRINGTON, R.F.: 'Computer programs for H-field, E-field, and combined field solutions for bodies of revolution'. Dept. of Electrical and Computer Engineering, Syracuse University, Syracuse, NY, 1977, Technical Report TR-77-3 20 MAUTZ, J.R., and HARRINGTON, R.F.: 'An improved E-field solution for a conducting body of revolution'. Dept. of Electrical
and Computer Engineering, Syracuse University, Syracuse, NY, 1980, Technical Report TR-80-1 21 HARRINGTON, R.F.: 'Field computation by moment methods' (Macmillan, New York, 1968) 22 HARRINGTON, R.F.: 'Time harmonic electromagnetic fields' (McGraw Hill, New York, 1961)
Book review Antenna theory and design
R.S. Elliott Prentice Hall, 1981, 594pp., £28.50 ISBN: 13-038356-2
This has evolved from a set of lecture notes for an extensive course given by the author on the subject of antenna theory and design. The text is his interpretation of a balanced treatment of the topic and has been influenced by his experience and the needs of local (Los Angeles) industry. Consequently the work deals mainly with microwave antennas and there is a strong emphasis on arrays for use in radar and communication systems. It is divided into four parts. In the first of these, following a discussion of the appropriate electromagnetic theory, integral relations are established between a collection of sources (the antenna) and the corresponding radiated field produced. Two classes of antenna are then analysed, comprising those for which the actual sources are known (such as dipoles, loops and helices) and those where it is the close-in fields that are known quite accurately (such as horns, slots and patches). The second part deals with the analysis and synthesis of one- and twodimensional arrays. In particular, the procedures due to Schelkunoff, Dolph, Taylor and Bayliss are presented, and extensions are made to deal with the requirement of arbitrary sidelobe topography. The third part considers the impedance properties of antenna elements, both singly and in arrays. Hallens integral equation is used to treat cylindrical and strip dipoles, and the case of the slot is also considered. These results are then used in the design of feeding structures for single elements and for both fixed-pattern and scanned arrays. The final part deals with continuous aperture antennas, These include long-wire and surface-wave structures, and the concluding chapter is devoted to reflectors and lenses. The author provides a sound introduction to each aspect under consideration and then, having developed the topic to his satisfaction, provides suggestions of further in-depth reading for those who wish to refine their appreciation of the subject.
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He has succeeded in transferring several recent important developments in the field from the research literature to textbook form, providing many useful up-to-date references to these and also to other useful standard texts. Each chapter closes with a number of problems, about 150 in all, which will greatly assist in consolidating the reader's understanding of the subject. The extensive treatment of arrays reflects the experience of the author, who was a chapter contributor to the well-known book 'Microwave scanning antennas' [Hansen, R.C. (Ed.) (Academic Press, NY, 1966)]. He provides the interesting phasor-diagram interpretation of the formation of sidelobe levels and null positions in the chapter on analysis. In presenting the various synthesis techniques many radiation-pattern plots are provided to demonstrate the results obtained for both linear and planar arrays. His treatment of antenna-element impedance is valuable, particularly because of the way he uses such information in relation to feeding structures, for which a significant amount of design data and procedures are presented. As the author confirms, his treatment of reflectors and lenses is introductory and once again suggestions for further reading are provided. Most of the important aspects are covered, including the design of shaped reflectors, although feed-system and surface-profile errors are not discussed, despite their ability to degrade the antenna performance. Both the aperture-field and current-distribution methods of obtaining reflector antenna radiation patterns are usefully described and their relative merits compared with the aid of an example. GTD is mentioned briefly and a starting reference provided for the interested reader. The subject of antenna measurements, which is an important finale to theory and design, has not been dealt with. However, it is acknowledged that limitations on length of text must exclude some items. This clearly written book with its excellent presentation of text and diagrams will serve as a useful aid to both practising antenna engineers and their educational counterparts. J.C. BENNETT
IEEPROC, Vol. 129, Pt. H, No. 3, JUNE 1982
