| 摘要 |
<p>FERRITE BEAD QUADRATURE DETECTOR A quadrature detector circuit for demodulating frequency modulated information is provided that is particularly designed for use in television receive only (TVRO) satellite communication video receivers. The bandwidth restrictions of conventional quadrature detector circuits are eliminated by substituting a simple ferrite bead for the usual parallel capacitor, inductor, resistor combination heretofore required in quadrature detectors. The quadrature detector hereof produces a higher level of video output, improved linearity, and better selectivity, as compared to conventional quadrature detector circuits. Moreover, the quadrature detector hereof reduces circuit complexity, and decreases material costs and production time.</p> |
