Characterization of Liquid Crystal Polymer (LCP) Material and Transmission Lines on LCP Substrates From 30 to 110 GHz (original) (raw)

Characterization of the relative permittivity and homogeneity of liquid crystal polymer (LCP) in the 60 GHz band

2010

The relative permittivity of LCP material has been characterized within the whole 60 GHz frequency band using the microstrip ring resonator (MRR) method. Using a circuit model, the gap capacitance of the MRR has been taken into account in order to improve the accuracy of the determined relative permittivity. The results show that the relative permittivity of LCP is almost constant ("r ?? 3.1) within the whole 60 GHz frequency band. The homogeneity of the LCP panel has also been examined. It is found that the variation of the relative permittivity is within 1.5% across the LCP panel