A plot showing the conversion loss and image rejection of an image suppressing, mixer, for the lower sideband IF Output, as a function of effective LO frequency for 3 different IF frequencies (1, 4 and 8 GHz) these results were obtained by selecting the lower sideband RE frequency as required. The LO power was held constant at + 18.7 dBm. The traces are labeled as follows: square markets indicate I GHz IF, triangular markers indicate 4 GHz IF and circular markers indicate 8 GHz IF. These results were obtained by selecting the lower sideband RF frequency as required. The LO power was held constant at + 18.7 dBm.