Maury Microwave has announced the release of its CT-series cryogenic automated tuners that are specifically designed for use at cryogenic temperatures down to 4 K. Using solid-state tuner technology, the CT-series presents electronically varied impedance states to a DUT for precise modeling and design within a cryogenic environment.
These tuners have been optimized to achieve low power consumption; minimal heat generation; and a compact, lightweight form factor for use in space-constrained cryogenic test setups. They include an integrated sensor that ensures precise temperature monitoring, while an integrated bias tee enables optional biasing of the DUT source, with external biasing available for the DUT load.
The CT-Series can perform noise parameters (NP) measurements on unmatched transistor or existing low noise amplifiers (LNAs) over a frequency range from 2 to 18 GHz. They can also evaluate noise and gain circles across 4 impedance states, and determine the best impedance match that meets the design requirements. This helps tune the impedance and achieve maximum power transfer.
These impedance tuners are driven by an external controller, which connects to the tuner through included wiring, and is USB-controlled via direct SCPI commands. They provide an output P1dB and have a repeatability of -60 dB with a return loss of less than 20 dB. These tuners are available in modules that measure 1.48 x 0.64 x 2.08 inches and have SMA-female connectors.
Click here to learn more about the new CT-Series Impedance Tuners from Maury Microwave.
