Abstract :
When more than two antennas are spaced in close proximity, there exists a coupling between them. However, due to practical and economical reasons, it is common to have multi-antennas installed on a mast, tower or rooftop of a building. This requirement therefore generates a coupling problem where one antenna, which is not desired, receives the voltage generated by a nearby antenna. In this paper, the effects of coupling as a function of separation distance, in the presence of conjugate match and 50 Ω loads and different transmitting frequencies are investigated, In addition, the effect of support structure is also discussed. The objective is to recommend the most suitable configuration for practical installation
Keywords :
dipole antenna arrays; impedance matching; microwave antenna arrays; transmitting antennas; common structure; conjugate match; coupling effect; coupling problem; dipole antennas; multi-antennas; separation distance; support structure; transmitting frequencies; Antenna radiation patterns; Arresters; Equations; Frequency; Impedance; Loaded antennas; MATLAB; Mutual coupling; Poles and towers; Voltage;
