Directional parabolic reflector radiator with planar excitation - has resonator array formed for phase, and impedance matched waveguides

摘要

The parabolic reflector has one or more coupled waveguide resonators fitted as primary excitation in its radiation focal point. A resonator array is formed on a dielectric support, consisting of microstrip waveguide resonators of identical phase and impedance matched feed. The resonance array consists of two subgroups (1,2) with spectral range from 10.95-11.70, or 12.50-12.75 GHz. The subgroups are coupled by microstrip technique via a ring hybrid (3), whose signal paths are so rated that both subgroups are decoupled in case of central feed for the above spectral ranges. The first subgroup generates vertically polarised, electric field vector (5). USE/ADVANTAGE - For stationary, or portable, reception of satellite transmitted signals, with system integrating facility and noise reduction.