E-PLANE T-JUNCTION OF RECTANGULAR WAVEGUIDES WITH VIBRATOR-SLOT COUPLING BETWEEN ARMS

摘要

Rectangular waveguide junctions are widely used in antennas and waveguide devices and, in this connection, the study and optimization of their electrodynamic characteristics is very important for practical application. A mathematical model of diffraction fields for an E-plane T-junction of rectangular waveguides with a vibrator-slot coupling structure was constructed using the approximate analytical solution of the equations set for currents by the generalized method of induced electro-magneto-motive forces. The model is characterized by the variable surface impedance along the monopole axis and by the constant surface impedance, distributed over the end wall of an inner semi-infinite waveguide. Multi-parameter studies of energy characteristics for the T-junction in the wavelength band of single-mode operation of waveguides were carried out. An opportunity of efficient use of an impedance monopole as a control element for power dividing between the output junction arms in predetermined proportions is shown.