M.B. Goikhman – Junior Research Scientist, Institute of Applied Physics of RAS (N. Novgorod)

E-mail: goihman@appl.sci-nnov.ru

A.V. Gromov – Junior Research Scientist, Institute of Applied Physics of RAS (N. Novgorod)

E-mail: gromov@appl.sci-nnov.ru

N.F. Kovalev – Dr.Sc.(Phys.-Math.), Professor, Main Research Scientist, Institute of Applied Physics of RAS (N. Novgorod) E-mail: kovalev@appl.sci-nnov.ru

A.V. Palitsin – Ph.D.(Phys.-Math.), Head of Laboratory, Institute of Applied Physics of RAS (N. Novgorod) E-mail: pal@appl.sci-nnov.ru

In the article, we theoretically considered summation of wave beams of short microwave pulses and introduced a novel parameter for radiating systems - a correlation length which depends on pulse duration. If the total cross section of the wave beams under summation is greater than correlation length then a radiation pattern depends on pulse duration. This effect may be used for suppression of side maximums in radiation patterns of short pulse systems as well as for pulse duration diagnostic.

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