The role played by evanescent fields in the process of formation of radiation of combined radiating systems
The problem of active controlling of the structure of fields of combined radiating systems within their near zone is studied. The characteristic size of this zone is on the order of the wavelength and is characterized by the presence of evanescent (nonpropagating) fields, which are formed, among oth...
| Published in: | Optics and spectroscopy Vol. 118, № 4. P. 602-604 |
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| Main Author: | |
| Other Authors: | , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000553563 Перейти в каталог НБ ТГУ |
| Summary: | The problem of active controlling of the structure of fields of combined radiating systems within their near zone is studied. The characteristic size of this zone is on the order of the wavelength and is characterized by the presence of evanescent (nonpropagating) fields, which are formed, among other things, due to the interference interaction of radiators of the system. Using multipole expansions for fields and special summation formulas for such expansions allows one to obtain concise expressions convenient in carrying out numerical calculations. The results of calculations confirm that the evanescent fields' structure plays a significant part in the process of the formation of the radiation field. |
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| Bibliography: | Библиогр.: 7 назв. |
| ISSN: | 0030-400X |