chunweimin
Junior Member level 1
lambda over 4 trl calibration
Hi,
I am trying to use microstrip lines structures to build up TRL standards for calibration from 1GHz to 40GHz. (1) Is there anything I should be careful about the length of the "Thru" standard for wideband measurement? (2) I am wondering that for the "Reflect" standard, is it necessary to compensate the open end effect which is from the fringing fields of the lines? If so, since this additional length is frequency-dependent, then how should I manage that for this wideband measurement. (3) How should I appropriately pick the lengths of the "Line" standard for different ranges of frequencies? Thank you.:|
Cheers,
Chunwei
Hi,
I am trying to use microstrip lines structures to build up TRL standards for calibration from 1GHz to 40GHz. (1) Is there anything I should be careful about the length of the "Thru" standard for wideband measurement? (2) I am wondering that for the "Reflect" standard, is it necessary to compensate the open end effect which is from the fringing fields of the lines? If so, since this additional length is frequency-dependent, then how should I manage that for this wideband measurement. (3) How should I appropriately pick the lengths of the "Line" standard for different ranges of frequencies? Thank you.:|
Cheers,
Chunwei