Kamran1992
Junior Member level 1
Hi,
I've got two questions about measuring IIP3
here is first: in the picture I attached you can see IMD3 products start to increase insanely at -33dBm hence IP3 gets much worth! So does it mean that I should only use this LNA for input power less than -33dBm?
2'nd: the following picture shows the higher and lower IMD3 products of a mixer in a two-tone test. But they are not equal. Why? then how should I measure the IIP3?
*I measured IIP3 based on the one that does not change significantly by variations of the input power(or the one that is more likely to be IIP3).
I've got two questions about measuring IIP3
here is first: in the picture I attached you can see IMD3 products start to increase insanely at -33dBm hence IP3 gets much worth! So does it mean that I should only use this LNA for input power less than -33dBm?
2'nd: the following picture shows the higher and lower IMD3 products of a mixer in a two-tone test. But they are not equal. Why? then how should I measure the IIP3?
*I measured IIP3 based on the one that does not change significantly by variations of the input power(or the one that is more likely to be IIP3).