Experimental research of radio lens from a gas-filled material

Abstract

Radio lenses are often used as collimators. It is allow to convert a spherical phase front into a flat one, corresponding to the far zone of the electromagnetic wave source. The paper is dealt with the manufacturing of radio lenses from gas-filled materials. The sequence of actions performing which it is possible to make a radio lens from a gas-filled material is described. The results of experimental studies of a radio lens manufactured with using the proposed technology are presented. Studies are carried out with using an electromagnetic field scanner in the X-band. It is established that the use of a radio lens from a gas-filled material leads to equalization of the antenna aperture phase front. The use of lenses made of gas-filled material improves the shape of the antenna pattern significantly. This is confirmed by the graphs presented in the work and the fact that the use of a radio lens reduces the value of the integral error by approximately two orders of magnitude.