NON-UNIFORM DELAY-LINE SYSTEM Russian patent published in 2008 - IPC H01J23/24 

FIELD: electricity.

SUBSTANCE: invention is related to the sphere of electrodynamics and may be used for creation of multiple-frequency generator of microwave oscillations, for example, on the basis of traveling-wave (TWL) or backward-wave (BWL) lamps. Non-uniform delay-line system in the form of joined resonators chain constitutes wave guide, which is baffled with flat membranes that are perpendicular to system axis and contain coupling slots and channels for electrons transit. Resonators chain is divided in sections. Geometric dimensions of membrane coupling slots in every section of resonators are selected in such a way so that pass band of each subsequent section is more than the previous one, at that top limit frequencies of pass bands of every section are same. Turndown of delay coefficient in frequency band of every section should not exceed turndown of delay coefficient of the last section. Selection of required pass band and dispersive dependence is achieved by alteration of geometric dimensions of toroidal resonators.

EFFECT: increases coupling impedance along the length of delay-line system at selected frequencies in preset frequency band.

5 dwg