Page 169 of Product Catalog by Maury Microwave

coaxial components tuners slide screw tuners ­ wide matching range · slab-line transmission structure · dual probes improve matching · lcd readout for carriage position 8045n description the tuners in this series are similar to those described on the previous page 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 series 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 these are noted in the model chart below frequency range ghz matching range 1 type n 2 connector ­ model 7mm 3 3.5mm 4 2.4mm 5 0.8 2.5 0.8 1.8 12.0 12.0 12.0 2.5 8.0 18.0 18.0 34.0 40.0 50.0 25:1 nominal 18:1 nominal 10:1 nominal 12:1 nominal 10:1 nominal 10:1 nominal 10:1 nominal cw peak 1643n 1643p 1643d1 50 watts 0.50 kw 2640n 2640p 2640d1 8045n 8045p 8045d1 8041c 6 25 watts 0.25 kw 7941a 6 15 watts 0.15 kw power handling 7 1 2 3 4 equivalent vswr precision stainless steel type n per maury data sheet 5e-049 precision 7mm per maury data sheet 5e-060 precision 3.5mm per maury data sheet 5e-062 5 6 7 precision 2.4mm per maury data sheet 5e-064 micrometer carriage drive within rated matching range maury microwave 157 coaxial components 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.

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