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General
A sliding termination (or
sliding load) consists of a precision, movable, tapered
termination in a highly accurate, air dielectric
transmission line.
These instruments are basic
tools for precision microwave measurements. One general
application is "load separation" measurements in which the
reflection from the terminating element can be separated
from that of the test device. Load separation using sliding
loads is a key element in the calibration of vector network
analyzers (VNAs). The technique is also used in the
measurement of the reflection from two-port devices,
particularly "non-insertable", (e.g., waveguide-to-coax
adapters, and the directivity of directional
couplers).
We manufacture sliding
terminations which offer a range of performance and
convenience features. These include metrology grade and high
precision units with integral, dedicated connectors;
precision units which permit changing the sex of the
connector within the same connector series; and true,
modular instruments which permit changing the connector
type.
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