. The Bell System technical journal . BEATING-OSCILLATORINPUT. SIGNAL INPUT BEATING-OSCILLATORMATCHING ROD BEATING - OSCILLATORINPUT Fig. —Balanced crystal converter em])l()\iiig wave-guide hybrid junction. design follows the scheme in the converter just described. How-ever, here two crystal elements are em])loyed in a balanced form whichnecessitates a balanced-to-unbalanced imj)e(lance transformation of the TFoutput signal for transmission over a line to the input stage of theII ami)litier. The degree of balance obtainable here is necessarily a fiuic- THE RADAR RECEIVE
. The Bell System technical journal . BEATING-OSCILLATORINPUT. SIGNAL INPUT BEATING-OSCILLATORMATCHING ROD BEATING - OSCILLATORINPUT Fig. —Balanced crystal converter em])l()\iiig wave-guide hybrid junction. design follows the scheme in the converter just described. How-ever, here two crystal elements are em])loyed in a balanced form whichnecessitates a balanced-to-unbalanced imj)e(lance transformation of the TFoutput signal for transmission over a line to the input stage of theII ami)litier. The degree of balance obtainable here is necessarily a fiuic- THE RADAR RECEIVER 721 tion of the similarity of the crystal elements as well as the other elementsshown. In practice, no particular difficulty was experienced in maintenanceof sufficient balance with the improved production control of crystals duringthe latter part of the war program. The advantages of the balanced radar converter here described are two-fold. First, the signal power dissipation in the beating oscillator branch isreduced to a minimum and conversely the bea
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
