MOBILE PHASED ANTENNA ARRAY DESIGN FOR RAISING STABILITY AND RANGE OF TRAIN-TO-WAYSIDE CONTACT BY RADIOPHONE COMMUNICATIONS Russian patent published in 2003 - IPC

FIELD: radio communications for train-to-wayside contact. SUBSTANCE: device that provides for raising signal-to-industrial-noise ratio at input of mobile radio communication receiver without increasing radio transmitter power has antenna array of n antenna dipoles, n 1 digital strip phase shifters, their cyclic control circuit, and antenna signal adder whose output is connected to radio receiver input. In this way circular rotation is ensured for directivity pattern maximum. EFFECT: enhanced stability and range of mobile radiophone communication. 1 cl, 4 dwg