MAURY進(jìn)口 8045N 射頻微波 Slide Screw Tuner

The tuners in this are similar to those with Standard Matching Range; however, the mechanical characteristics are optimized for increased matching ranges. These tuners also utilize the slab-line transmission structure for broad frequency range. The probes are designed to be very close to one-quarter wavelength in the linear dimension at the mid-band of each range. Since each tuner has two probes, this results in improved matching characteristics for each unit. An additional feature of this of tuners is the use of a LCD position readout of the carriage position on those units operating below 18 GHz. Higher frequency tuners utilize a micrometer carriage drive.

The positional repeatability and high matching range of these tuners are ideally suited to applications like device characterization. Such measurements depend upon the ability of the tuner to establish impedances out near the edge of the Smith chart and to reproduce the electrical characteristics as a function of mechanical position. Slide screw tuners are also easy to use due to the almost independent electrical results of the mechanical motions. The depth of penetration of the probe into the transmission line determines the magnitude of the reflection, while the position of the probe along the line determines the phase. While there is some interaction, the effects are almost independent of each other.