Sliding Matched
Terminations
Adjustable waveguide termination loads with precision sliding mechanisms for fine-tuned impedance matching. Essential components for waveguide calibration kits and tuning applications.
Select a Sliding Matched Termination
Adjustable Loads for Precision Calibration
RF Essentials sliding matched terminations feature a movable absorptive element that allows engineers to fine-tune the impedance match at specific frequencies. By adjusting the position of the load within the waveguide, the operator can minimize reflections and achieve near-ideal matched load performance.
These terminations are essential components in waveguide calibration kits, used alongside short circuits and offset shorts to establish reference planes for network analyzer measurements. Available from WR-28 (26.5 GHz) through WR-05 (220 GHz).
Key Features
Adjustable Match
Sliding mechanism allows precise positioning of the absorptive element for optimized impedance matching at specific frequencies.
Calibration Grade
Designed to calibration kit standards for use as a matched load reference in TRL and other waveguide calibration procedures.
Low Residual VSWR
When properly adjusted, achieves very low return loss for accurate reference plane establishment and measurement confidence.
Materials & Mechanism
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01
Sliding Absorptive Element
Precision-machined movable lossy element on a sliding carriage for adjustable impedance matching at the measurement frequency. -
02
Waveguide Body
OFHC copper housing with precision-machined internal bore for smooth, low-friction sliding action. -
03
Surface Finish
Gold plating for superior corrosion resistance and consistent electrical contact across the sliding surfaces. -
04
Flanges
Precision-machined brass flanges with standard MIL-DTL-3922 patterns for universal compatibility.
Applications
Waveguide Calibration Kits
Essential component in TRL, TRM, and other waveguide calibration procedures for establishing matched load reference standards.
Network Analyzer Calibration
Provides an adjustable matched load for vector network analyzer calibration at millimeter-wave frequencies.
Impedance Tuning
Used to optimize impedance matching in waveguide systems by adjusting the absorber position for minimum reflection at a target frequency.
Research & Development
Critical for R&D laboratories requiring precise, adjustable impedance references for component characterization and system development.
Other Termination Types
Frequently Asked Questions
What is a sliding matched termination?+
A sliding matched termination is an adjustable waveguide load with a movable absorptive element. By sliding the absorber along the waveguide, engineers can fine-tune the impedance match at a specific frequency, achieving very low VSWR for precision calibration measurements.
How is a sliding termination used in calibration?+
Sliding matched terminations are essential components in waveguide calibration kits. During a calibration procedure, the sliding mechanism allows the operator to adjust the position of the absorptive load to minimize reflections at the measurement frequency, providing a near-ideal matched load reference.
What frequency range do sliding matched terminations cover?+
RF Essentials sliding matched terminations are available from 18 GHz (Ka-Band, WR-28) through 220 GHz (G-Band, WR-05), covering the most commonly used waveguide calibration bands.
Are RF Essentials terminations made in the USA?+
Yes. All RF Essentials terminations are manufactured in the United States at our facility in St. Petersburg, Florida. Domestic production ensures strict quality control and fast lead times.