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Millimeter wave sensing systems suffer from measurement inaccuracies when the waist of the radiated beam is relatively larger than the size of the test targets. In order to mitigate the issue, we designed a quasi-optical lens system, which enhances the dynamic range and sensitivity of the millimeter wave sensor system, compared with lens-less sensor systems.
An integrated high dynamic range approach is presented to accurately measure the radiation pattern, the scattering parameters, and the gain of integrated on-wafer antennas operating in the millimeter-wave frequency band. To avoid interconnection problems such as connector mounting, RF probes are used to connect to the antenna. This measurement system is specially designed to avoid scattering and parasitic...
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