DIODE-BASED MICROWAVE SIGNAL POWER LIMITER Russian patent published in 2014 - IPC H01P1/00 

FIELD: physics.

SUBSTANCE: invention relates to microwave engineering and specifically to diode-based power limiters for protecting the input of a receiving device from the effect of the microwave signal of its own transmitter and an external high-power microwave signal. The diode-based microwave signal power limiter includes an input transmission line connected to the input of a channel binary divider comprising N-1 separate dividers connected to each other by identical line sections, an output transmission line connected to the output of an N channel binary adder comprising N-1 separate adders connected to each other by identical line sections, two of which are shunted by at least one diode each, outputs of the binary divider are connected to inputs of the binary adder by N line sections, each shunted by one diode at distance close to half the wavelength from the input of the binary adder, and a direct current circuit for the diodes. Each line section connecting the binary divider and the adder is further connected to adjacent line sections connecting the binary divider and the adder at a distance close to half the wavelength from the input of the binary divider.

EFFECT: high reliability of the limiter owing to 1,5-2-fold increase in allowable input power and maintaining low initial losses when operating in microwave signal transmission mode.

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