Characterization of integrated antennas at millimeter-wave frequencies

This paper presents two feeding techniques for the radiation characterization of integrated antennas at millimeter-wave frequencies. The first method involves feeding the antenna-under-test (AUT) with a RF probe. We compare the measurements obtained with a standard RF probe, an extended probe and an extended probe with reversed connector orientation. We find that the reversed orientation probe produces the best results in terms of the measurement angle sector and in terms of diffraction phenomena. The second method involves feeding the AUT through a flexible transmission line. This method achieves an even larger range of measurement angles.

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