Study of interaction between antenna elements of radio imaging array operating in range of 3-mm wavelengths

Basic problems arising in development of antenna elements which are used to be combined in matrixes or linear arrays for radio imaging of mm wavelengths range are the next one: 1) matching of an antenna element with a high-sensitive diode, i.e. a minimization of mismatch factor in diode frequency operating range, 2) providing of demanded radiation pattern of the element, 3) providing of minimal interaction between elements included in a linear array or 2D matrix.