Lashchenko I. Wide-band Compact Microwave Transducers For Measuring Of Antenna-Waveguide Lines Parameters

The thesis is devoted to construction methods elaboration of wideband small constructively simple microwave transducers with weakly depending on frequency phase displacements between all of signals. Four variants of such transducers and the measuring device mathematical model, the dominant errors of which are eliminated by algorithmic processing of measuring results are created. Novelty of the suggested devices confirmed by patents. The formulas of signals complex amplitudes, acting on detector heads through sloping coupling slots, and phase displacements between them have been got, taking into account all of slots geometrical parameters. In order to obtain constant phase displacement in waveguide frequencies range and minimization of measuring frequency error multi-parameter optimization has been carried out. Results authenticity confirmed by numeral modeling and experimental research. On the base of suggested transducers the high-precision computer-controlled measuring device of waveguide li nes parameters of microwave equipment is created.