ESTIMATION OF ERRORS IN MICROWAVE SENSORS FOR ANTENNA RADOME RADIO WAVE CONTROL

Abstract

Particular features in organization of radio wave control of antenna radome were considered. Requirements were formulated for the permissible errors in the measuring circuit of ampliphasometer and the microwave sensors themselves. Application features of dielectric rod antennas as microwave sensors for contact radio wave control of antenna fairings were considered. Сhoice of dielectric antennas is based on the requirements of the locality of the control zone, taking into account the curvature of the radome, the inhomogenity of the geometric wall thickness, unilateral access to the monitored object. The errors in the measurements of the module and the phase of complex reflection/transmission coefficients related with nonuniform distribution of the electromagnetic field in the sensor aperture were estimated. An estimate was proposed concerning suitability of microwave sensors by the level of lateral radiation in the far-field radiation pattern. Requirements were formulated for microwave sensors used in automated stands for contact radio wave control of antenna radome.

Keywords

• dielectric rod antenna
•  radio wave control
•  antenna fairing
•  nonuniform field distribution