Try modeling the various configuration in programs like EZNEC etc. and see
the current distributions and resultant antenna patterns.

Yuri, K3BU


"Rohit" wrote in message
ups.com...
i m studying the distortion of the antenna pattern located near any
conductor. i want to know how do i interpret the patterns obtained. i
know the ideal pattern of the antenna but when i place them near any
conductor, can the pattern distortion be studied by knowing the surface
currents in the object due to the antenna? how the E field and H field
behaviour changes as it travels from free space to any finite conductor
plate?
i m very new to antennas so i need answer in detail to understand.
thanks
rohit