MICROWAVE SIGNAL ADDER Russian patent published in 2013 - IPC H01P5/16 

FIELD: electricity.

SUBSTANCE: into a microwave signal adder containing a symmetric T-piece having an output arm, two input quarter-wave arms located on both sides of the output arm, there installed in parallel are switching diodes connected at the distance equal to one quarter of wave length of the T-piece branching node, and the output arm is made in the form of a quarter-wave piece of the connected line, on both ends of the secondary line of which there connected in parallel are additional switching diodes.

EFFECT: reduction of losses of a microwave signal passing from one input to the output at non-available matching of the second input and keeping of good matching on the output side at non-available matching at one of the inputs.

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