SCATTERING OF ELECTROMAGNETIC-WAVES BY NONLINEAR ANTENNAS IN THE PRESENCE OF A 2 MEDIA BOUNDARY

Experimental and theoretical investigations have been carried out to d etermine the effect of the interface on the back scattered field of a loop metallic antenna and an oscillator with a nonlinear local load (i n the form of a semiconductor diode) placed in the dielectric near the boundary. The growth of the scattered signal level is noted at the li mits of the quasi-static zone with an increase in the distance between the nonlinear scatterer and the boundary. With a further increase in this distance, the indicated dependence has an oscillating characteris tic.