On-Wafer Biasing Using Kelvin Bias Tees

The VectorStar ME7838x series of broadband systems covers a range of 70 kHz to 110/125/145/220 GHz. The distinctive architecture of the Anritsu NLTL mmWave modules offer a DC path between the baseband VNA and the DUT through the module. This beneficial design offers the opportunity to switch between the baseband VNA for non-broadband applications and the mmWave module for on-wafer broadband measurements. An additional benefit is the ability to attach a Kelvin bias tee to the input side of the module for DC Kelvin biasing.