Comparación analítica de arreglos de antenas Yagi por los métodos de momentos y multiplicación de patrones

Abstract

THE OPERATIONAL PROPERTIES OF HORIZONTAL AND VERTICAL ARRAYS FORMED BY 3 YAGI ANTENNAS ARE ANALIZED BY THE METHOD OF MOMENTS (MOM), TAKING INTO ACCOUNT THE MUTUAL IMPEDANCES BETWEEN THEM. YAGIS WITH AN INCREASING NUMBER OF ELEMENTS (3, 6 AND 9) ARE USED, OPTIMIZING THE INPUT IMPEDANCE OF EACH ARRA Y AT A FIXED CENTER FREQUENCY OF 500 MHZ. THE RADIATION PATTERN OBTAINED IN EACH CASE IS COMPARED TO THE APPROXIMATION GIVEN BY THE PATTERN MULTIPLICATION METHOD FOR DIFFERENT SEPARATIONS BETWEEN THE YAGI ANTENNAS OF EACH ARRA Y, TO DETERMINE THE INFLUENCE OF DISTANTE IN THE CALCULATION OF THE RADIATION CHARACTERISTICS. BESIDES BEING COMMERCIALLY USEFUL, THIS INFORMATION IS ALSO OF TEACHING VALUE ON THE SUBJECT OF ANTENNAS IN TELECOMMUNICATIONS ENGINEERING.