MODULE FOR FORMING A QUASI-RANDOM SIGNAL OF MICROWAVE FREQUENCIES Russian patent published in 2023 - IPC G01S7/38 H04K3/00 

FIELD: microwave engineering.

SUBSTANCE: part of communication systems using quasi-random signals, including pulses, to interfere with radio communications and radar. The module for generating a quasi-random signal of microwave frequencies contains a segment of a coplanar strip line, a lithium niobate crystal, a device for separating incident and reflected waves, a device for adding incident waves, a signal generator with linear frequency modulation of oscillations, a sync pulse generator for starting a signal generator with linear frequency modulation. A segment of a coplanar strip line is made on a dielectric substrate, the lower side of which is metallized, the side screens located on the upper side are connected to the metallization of the lower surface through plated hole. The current-carrying strip is sseparated from the side screens by gaps, on the upper side, on the side of the current-carrying strip and the side screens, there is a lithium niobate crystal, the transverse dimensions of which, facing the current-carrying strip, cover the gaps between the current-carrying strip and the side screens, and the longitudinal dimensions of the crystal do not exceed the length of the current-carrying coplanar stripes. The input of the coplanar strip line receives an incident wave of linear-frequency-modulated oscillations from the first output of the device for the separator of incident and reflected waves, which is the input of the wave reflected from the lithium niobate crystal. The wave reflected from the lithium niobate crystal enters the second output of the device for separating the incident and reflected waves, connected to the first input of the device for combining the incident waves. The output of the coplanar strip line is connected to the second input of the incident wave interference. The output of the module for forming a quasi-random signal of microwave frequencies is the output of the device for adding incident waves.

EFFECT: expansion of the operating frequency range in which a quasi-random signal is formed.

1 cl, 10 dwg