Novel planar antenna measurement techniques with electro-optic sampling (EOS)

摘要

This paper has proposed a new antenna assessment technique. Antenna radiation patterns are measured using electro-optic sampling (EOS). The electric field of a microstrip-fed patch antenna is measured by an EO probe tip and the radiation pattern is theoretically calculated. The calculation results are compared against the conventionally determined far-field pattern. The experimental results confirm the effectiveness of the proposed method. The method is suitable for planar antennas, very small MMIC antenna arrays, i.e., wafer scale integrated circuits (WSICs), and evaluating the mutual coupling of large scale phased arrays.