METHOD WHICH SHARPENS ANTENNA BEAM PATTERN AND DEVICE WHICH IMPLEMENTS SAID METHOD Russian patent published in 1997 - IPC

FIELD: antenna devices, in particular, design of traveling wave antennas with artificial aperture. SUBSTANCE: method involves generation of biharmonic laser beam pulse, generation of delay structure which is designed as spin-polarized air channel by means of biharmonic laser beam, simultaneous generation and emission of radio pulse along delay structure, distribution of radio waves along generated delay structure and shaping beam pattern of antenna. Corresponding device has serial circuit of laser and focusing optical units, radio wave transmitter and emitter which is connected to transmitter and has hole for laser beam. Laser cavity has dispersing element, control structure is generated as spin-polarized air channel. EFFECT: decreased power level for generation of delay structure, increased duration of this structure. 2 dwg