Push-pull mixer

摘要

The present invention describes an easy-to-produce push-pull mixer having at least two transistors, e.g. GaAs or MESFETs, which is constructed in one plane on one side of a carrier plate. The lines are constructed as symmetric coplanar slotted lines (1, 2, 3, 7) or microstrip lines (14 and 15), respectively. The push-pull mixer is constructed as integrated microwave circuit (MIC) but can also be produced monolithically on a semi-conductor substrate (MMIC). Fields of application are frequency up- or down-converters in the microwave range with very good suppression of unwanted mixed products, for example for aerospace engineering. <IMAGE>