12 pages matching directional coupler in this book
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Device for Indicating SignaltoNoise Ratio
A Switching Station for Direct Connections of a Crossbar System
44 other sections not shown
amplifier amplitude analysis antenna approximation assume attenuation band bibl calculated capacitance capacitor cathode channel characteristic characteristic impedance circuit of Fig Class H coefficient color communication components connected constant corresponding coupler crosstalk curves cyclical code density detector determined diagram diode directional coupler distortion distribution diversity reception electrical electronic elements emitter equal equation error experimental expression factor feedback Figure filter formula frequency function given harmonic heterodyne Hurwitz polynomial increase input impedance integral interval linear load matrix maximum measurement method modulation neper noise immunity nonlinear obtain optimum oscillator output voltage p-n junction parameters passband phase polynomial problem protective interval pulse radiation Radio Engineering Radiotekhnika ratio receiver reception resistance resonant shown in Fig signal signal-to-noise ratio spectrum stability stage subcarrier synchronization theory tion transistor transmission transmitted tube variation voltage wave impedances waveguide zero