Hybrid De-embedding Technique for Microwave Absorber Characterization
Abstract: In this paper, a
data processing technique to obtain the true characteristic of microwave
absorber material characterization is proposed. This technique addressed to
overcome the limitations of port extension is known as hybrid de-embedding
technique, which in principle is carried out by combining the structure model
data of test fixture that is used with simulated data or experimental
measurements. In this technique, the test fixture is simulated numerically to
get S (scattering) parameter data. Then the S parameter is converted into the T
parameter (transfer) to be used for de-embedding process by removing the
characteristic of test fixture used so that the true characteristics of a
microwave absorber material can be revealed. To verify the accuracy of
technique proposed, the characteristics of a microwave absorber is simulated
numerically and measured experimentally. The simulation and measurements
results are then processed using the proposed technique to be compared with its
ideal model. In general, the result of de-embedding process shows that the proposed
technique has high accuracy.
Author: Achmad Munir
Journal Code: jptkomputergg110020