Title :
Asymmetrically fed linear antenna for low-angle VHF/UHF satellite communications
Author :
Casey, John P. ; Fessenden, Charles T. ; Bansal, Rajeev
Author_Institution :
Dept. of Submarine Electromagn. Syst., Naval Undersea Warfare Center, Newport, RI, USA
Abstract :
Compared with the center-fed dipole, an asymmetrically fed linear radiator is shown to offer improved low-angle, satellite communications antenna performance by greatly reducing the severity of the multipath signals near the horizon. Numerical analysis (NEC) and measured data show that the improvement is achieved by increasing the upper/lower half-space energy ratio, particularly in the region near the horizon
Keywords :
UHF antennas; VHF antennas; antenna radiation patterns; antenna testing; linear antennas; numerical analysis; satellite communication; NEC 4.1; UHF communications; VHF communications; antenna performance; asymmetrically fed linear antenna; low-angle satellite communications; multipath signals; numerical analysis; numerical electromagnetics code; satellite antenna; upper/lower half-space energy ratio; Antenna measurements; Dipole antennas; Energy measurement; National electric code; Numerical analysis; Particle measurements; Satellite antennas; Satellite communication; UHF antennas; UHF measurements;
Conference_Titel :
Antennas and Propagation for Wireless Communications, 1998. 1998 IEEE-APS Conference on
Conference_Location :
Waltham, MA
Print_ISBN :
0-7803-4955-5
DOI :
10.1109/APWC.1998.730672