Abstract: The invention pertains to an electronic sweep device with integrated active lens and light source.The device includes a bundling of superimposed channels C which are separated by thin metal planes P that include, in front of a metal short-circuit plane (10), illumination organs (S) and phase displacement organs (B).The invention makes it possible to create a compact electronic sweep device which eliminates the parasitic reflection phenomena between illuminator and lens for the purpose of controlling a hyperfrequency beam.

Abstract: This invention relates to a process and means for rapid microwave imaging using UHF waves transmitted by an antenna toward a body to be scanned. According to the invention, body O to be scanned is placed in front of a transmitting antenna A and various signals forming the various points of the image are analyzed in a collector-unit RC consisting of a diode-conductor panel 1 and a wave-guide stack 2 and are then transmitted to a receiver R.

Abstract: The invention refers to the analysis of a very high frequency radiation beam of electromagnetic waves. According to the invention, a network of conductor wires is placed in the path of a beam to be analyzed, the wires being interrupted at intervals by switches. One controls the conducting state of a diode and one blocks the others and one makes the position of the diode vary electronically and sequentially in the conducting state. The return signal received on a sensor R is used by detecting the significant characteristics of that return according to the position of the diodes in the conducting state.

Abstract: The invention relates to an adaptive spatial microwave filter for multipolarized antennas and the process of its application. According to the invention, the filter principally consists of two conjugated networks of lines L.sub.1, l.sub.1 ; L.sub.2, l.sub.2 ; . . . of sections of wires loaded with diodes D mounted in series and essentially symmetrically superposed. The lines are passed through by polarizing currents I.sub.1, I.sub.2 . . . which according to selected distribution enables attenuation at reception of certain secondary lobes of the antenna pattern. The invention applies in particular to the localization and neutralization of jammers.

Abstract: An electrically controlled lens for electronic scanning of a beam emitted by a microwave source in a plane parallel to the electrical field of the emitted radiation comprising individual phase-shifter panels, linked and controlled to give the intercepted microwave radiation a 0.degree.-360.degree. phase shift in the direction of the electrical field vector of the radiation.

Abstract: A method and apparatus for directionally coupling two technically different microwave transmission lines, one being a waveguide and the other a stripline, in which a central conductor of the stripline is plunged into waveguide through a slot in a wall of the waveguide and loaded by capacitors or inductors. The width of the central conductor and values of the capacitors and inductors determines the desired coupling coefficient.

Abstract: Process to attenuate or cancel certain side lobes of a microwave antenna pattern by using a network of parallel wires loaded with resistances that are adjustable at will, arranged as a filter in front of the antenna.Application of this process to the elimination of the effects of active or passive interferences, as well as to the localization of jammers.Adaptive filter for microwave antennas.

Abstract: A plurality of metallic wire conductors are fitted in shunt along a shorted wave guide parallel to a dielectric field of electromagnetic wave incident to the wave guide. At least some of the wires have diodes mounted on them such that selective biasing of the diodes renders these wires discontinuous and causes a controlled phase shift of the incident wave.

Abstract: A system for correcting for dispersion in a beam radiated by a flat microwave antenna due to variations in the frequency of operation by providing an electronically controlled phase shift of the beam in the plane of the dispersion. The methods consist of combining with the flat antenna a matrix of particular wire conductors of which certain are controlled such that the phase shift introduced by the matrix is able to correct for the dispersion of the flat antenna.

Abstract: Bipolar switches in first conductive leads mounted in a dielectric panel are divided into successive groups of alternating polarity and additional pairs of leads are positioned in the panel adjacent each first lead to couple the groups of switches in each first lead in parallel. A reduced reversed biasing of the additional leads results in the first leads being selectively rendered discontinuous by the switches, changing the electrical characteristics of the panel to shift or focus a microwave beam passing through the panel. The additional pairs of conductive leads also operate as microwave elements to increase the bandwidth of the panel.