DELAY LINE WITH VARIABLE COUPLING RESISTANCE, FOR CROSS FIELD TUBE AND CROSS FIELD TUBE COMPRISING SUCH A LINE.

摘要

The present invention relates to a delay line with variable coupling resistance which is used in cross-field tubes. /P P The thickness e of the fingers 13 of the line is modified, while the pitch p of the fingers is kept constant, so that the capacity between two successive fingers varies appreciably in proportion to the product PHF x dI / dx, where PHF represents the microwave power at any point x of the line and dI / dx the gradient, as a function of position x on the line, of the current I emitted by the voltage source creating a continuous electric field Eo between the electrodes of the tube . The PHF and I values are measured on the tube comprising a constant coupling resistance Rc or calculated by computer program. /P P Application to cross-field tubes. /P