Comparison of 6 Diode and 6 Transistor Mixers Based on Analysis and Measurement

Figure 9

Schematics of the Russian type modified half H mixer. Modification with respect to the original version [6] is the replacement of the 4-winding IF transformer by a 2-winding one and interchange of the RF and IF ports; these are our contributions. Also, in [6] it is not clear how the upper and lower two coils of and are coupled. As shown in this figure, our interpretation is that they are uncoupled.