Abstract:
Elongated elements of superconductive material are applied to an elongated, heated base support at a temperature permitting retention of the superconductive qualities in the material, and in a controlled atmosphere, the application step being carried out while twisting the superconductive element with respect to the base support so that the major axes of the superconductive elements will be inclined with respect to the major axis of the base support; composite elements can be made by applying composites of the resulting superconductive material and elongated base supports on additional supports, or forming them in tubular or other form, joined together, at temperatures below the temperatures at which the superconductive properties of the superconductive elements are affected.
Abstract:
A plurality of transmitting and/or receiving radiators made operational in a predetermined sequence, confront a focusing assembly which includes an array of controllable phase shifters for converting planar waves into spherical waves or vice versa, the phase shifts introduced by this array being periodically altered under the control of a timer to center the spherical wave fronts on one side of the array successively upon the several radiators whenever the latter are made operational.
Abstract:
SUM AND DIFFERENCE SIGNALS FROM AN ARRAY OF RECEIVING ANTENNAS OF A MONOPULSE-TYPE RADAR SYSTEM ARE SEQUENTIALLY TRANSMITTED TO AN OUTPUT STAGE THROUGH A SINGLECHANNEL EVALUATION NETWORK. THE SUN SIGNALS, UPOM COMPARISON WITH A REFERENCE OSCILLATOR, SET A GAIN-CONTROL CIRCUIT AND A PHASE-LOCKING CIRCUIT WHICH REMAINS SET DURING THE SUBSEQUENT TRANSMITTAL OF DIFFERENCE SIGNALS, VOLTAGE TO THE OUTPUT STAGE.