COMPRESSION OF POWERFUL MICROWAVE FREQUENCY-MODULATED E-POLARIZED PULSES BY AUTOCOLLIMATTVE GRATINGS

摘要

Electromagnetic pulse compressors using gratings in autocollimation regime for the central ftequency of a pulse for p- polarization having greater electrical reliabilily are theoretically investigated. The theory is built on (lie basis of the numerical de-cision of electromagnetic field equations by a method of the integral equation. A case of aberrationless approximation of bell-like pulse compression with quadrati-cally modulated phase is analytically considered. The numerical experiment shows the presence of strong distortions of a pulse at compression, caused by cubic and senior members in decomposition of phase frequent dependence, got by a wave in the compressor. Conditions of optimum pulse compression with the account of ab-errations are investigated.