High Voltage Pulse Attenuators
Barth High Voltage Pulse Attenuators are matched impedance coaxial attenuators for use primarily in pulsed 50 ohm systems, or where occasional transients would damage ordinary units. The attenuator design closely matches the impedance around each resistor, to that resistor. These attenuators feature an input impedance very close to 50 ohms, with characteristics as good or better than most microwave attenuators. These units are ideal for use in nuclear and high energy experiments. Extensive testing during manufacturing insures very high reliability for single-shot experiments. A voltage coefficient of the resistive film of less than .0001 %/V allows low voltage calibration of most systems.
ADVANTAGES OVER STANDARD RF ATTENUATORS
- Low reflection coefficient
- Withstands high voltage pulses
- Pulse power rated
- Low voltage coefficient
- High reliability
- lnput/Output impedance held very close to nominal
MAXIMUM INPUT CONSIDERATIONS
The breakdown limitations of our film resistors are related to pulse energy. A unit that has been rated and tested to withstand 5kV, 400ns FWHM rectangular pulses should be able to withstand 10kV, 75ns FWHM rectangular pulses. While this general “rule of thumb” has been found useful in practice, we cannot guarantee higher voltages or pulse widths unless we test the particular unit to your pulse specification.
NOTE: We will only guarantee other voltages and pulse widths or shapes if we life test a unit for that particular pulse specification.
Our standard units are all 50 ohm impedance. We do, however, manufacture and stock many 100 ohm impedance units. If we are unable to meet your requirements with a stock unit, call, as other types and impedance’s can be designed to your specifications.
SPECIAL USE CONSIDERATIONS
Attenuators purchased at list price can be used at higher voltages and shorter pulse width ratings but are not guaranteed.
Guaranteed pulse energy performance is available with a nominal additional cost for special testing at specified voltage & pulse width.