Thinly wire element of connection of electrodynamic volumes

Abstract

The solution of the electrodynamic problem of scattering on a wire element of connection a rectangular waveguide with free half-space is obtained. A piece of thin wire through a round hole pierces the wide wall of the waveguide and passes into a free half-space without a contact with waveguide. Waveguide is excited by its fundamental mode. The calculations of the amplitude distribution of the current along the ideally conducting wire were carried out taking into account five spatial harmonics. The coefficients of reflection, transmission and radiation are received. Experimental studies of the energy characteristics of such an element of link and their comparison with the results of the calculation are carried out. It was shown that the agreement between the calculation results and the experimental ones was provided within 10%. It was shown that this coupling element can transmit up to half of the incident wave power to the neighboring space with a reflection coefficient not higher than 0.15.