MICROWAVE MIXER Russian patent published in 2020 - IPC H03D7/12 

FIELD: radio engineering.

SUBSTANCE: invention relates to the radio engineering. Mixer comprises a metal base on one side of which there is a Lange coupler circuit board, one of which is a microwave signal input, the other input is an intermediate frequency (IF) signal output, a power divider board is installed on the other side of the base, the input of which is a heterodyne input, outputs of the power divider are made in the form of capacitive open loops that excite slot resonators orthogonally located on the side of back metallization of the power divider board, which cross them perpendicularly in the middle of their length. Conversion circuit is in form of two bi-diode balanced circuits relative the heterodyne signal. Common points of connection of diodes of each circuit are connected to ends of output lines of Lange coupler, other outputs of each pair of diodes are connected to opposite sides of corresponding slotted resonators.

EFFECT: technical result of the proposed solution is expansion of working frequency bands of the input microwave signal, heterodyne signal and IF signal with provision of the zero IF operation mode, as well as increased isolation of heterodyne-signal and heterodyne-IF circuits.

5 cl, 7 dwg