abhi_kolkata
Member level 5

hi,
i am working on transmission line phase shifters.but i saw one immediate problem with simulating the structure with IE3D(this is the only planner tool i have an access to) is that when i am using the line segment as it is (340micron) and feeding it with extn. for MMIC ports and 15 cells for deembedding , it gives very diffferent results from the one if i simulate the same 340micron segment with two deembeding arms added on both the sides (7500micron each for 10 GHZ and above) and extract the parameters using ABCD matrix for the single segment.
is the difference is due to port to port coupling or something else??
i will be grateful if somebody helps me with it.
with regards
abhi
i am working on transmission line phase shifters.but i saw one immediate problem with simulating the structure with IE3D(this is the only planner tool i have an access to) is that when i am using the line segment as it is (340micron) and feeding it with extn. for MMIC ports and 15 cells for deembedding , it gives very diffferent results from the one if i simulate the same 340micron segment with two deembeding arms added on both the sides (7500micron each for 10 GHZ and above) and extract the parameters using ABCD matrix for the single segment.
is the difference is due to port to port coupling or something else??
i will be grateful if somebody helps me with it.
with regards
abhi