MEANDER LINE DELAY WITH FACE COMMUNICATION OF TWO TURNS, WHICH PROTECTS FROM ULTRASHORT PULSES Russian patent published in 2020 - IPC H03H7/30 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used for protection of radioelectronic equipment against ultrashort pulses (USP), which is shorter than duration of impact pulse. Delay line consists of a reference conductor located on one side of the dielectric substrate with one of the signal conductors, and second signal conductor is arranged symmetrically to first relative to dielectric substrate, two parallel to it and to each other signal conductors, connected to each other at one end, and dielectric medium, consisting of dielectric substrate and ambient air. By selecting parameters of the first and second lines, a number of conditions are provided: equality of the geometrical mean values of the wave impedances of the even and odd modes of the first and second lines to the values of wave resistance of the generator and the receiving device, respectively, as well as equality of double value of minimum of linear delays of even and odd modes of first line to value of maximum of these delays, value of product of double length of second line and linear delay of its even mode, value of product of double length of second line and module of difference of linear delays of its even and odd modes, value of difference of products of double length of first line by linear delay of its even mode and product of double length of second line by linear delay of its odd mode, value of difference of product of double length of first line and difference of linear delays of its odd and even modes and product of double length of second line and linear delay of its odd mode is not less than duration of impact pulse.

EFFECT: increased attenuation of USP due to its decomposition into a sequence of nine pulses of smaller amplitude: first by three pulses in the first turn, and then each of them by three pulses in the second turn.

1 cl, 2 dwg