Abstract: A thin-film material measurement and characterization fixture system using an embedded coplanar waveguide fixture including a substrate layer, an upper conductor layer disposed on top of the substrate layer, the upper conductor layer including a first upper conductor layer and a second upper conductor layer spaced from the first upper conductor layer by a gap, a signal trace disposed on top of the substrate layer in the gap between the first upper conductor layer and the second upper conductor layer, and a superstrate layer disposed on top of the upper conductor layer and the signal trace, the superstrate layer filling the gap between the first upper conductor layer and the second upper conductor layer to achieve accurate thin-film characterization in the millimeter wave bands.

Abstract: A thin-film material measurement and characterization fixture system using an embedded coplanar waveguide fixture including a substrate layer, an upper conductor layer disposed on top of the substrate layer, the upper conductor layer including a first upper conductor layer and a second upper conductor layer spaced from the first upper conductor layer by a gap, a signal trace disposed on top of the substrate layer in the gap between the first upper conductor layer and the second upper conductor layer, and a superstrate layer disposed on top of the upper conductor layer and the signal trace, the superstrate layer filling the gap between the first upper conductor layer and the second upper conductor layer to achieve accurate thin-film characterization in the millimeter wave bands.

Abstract: A radar sensor system includes transmit circuitry configured to provide a source signal to first and second transmit antenna slots, selectively shift a phase of the source signal as provided to the second transmit antenna slot relative to the source signal as provided to the first transmit antenna slot, and output transmit signals based on the source signal provided to the first and second antenna slots. Receive circuitry is configured to receive, via first and second receive antenna slots, reflected signals corresponding to the transmit signals as reflected from an object in the environment. A control module is configured to, in a first antenna pattern mode, sum the reflected signals, and, in a second antenna pattern mode, calculate a difference between the reflected signals. The radar sensor system is configured to detect the object based on the sum of the reflected signals and the calculated difference between the reflected signals.