The Flexible Filter is being used by a leading microwave
manufacturer of TWT’s, magnetrons, klystrons and other
microwave generating devises for use in radar, microwave
transmitters, electronic countermeasures systems and
microwave communications systems. Requirements for
filter are to provide attenuation of 100dB at frequencies
above 1000Mhz and to withstand temperatures of minus
67˚C to plus 200˚C. Only a five inch length is needed
obtain the required EMI suppression.
The Flexible Filter is presently being used by a leading
radar equipment manufacturer in classified airborne
equipment. The function of the filter is to provide EMI
suppression of unwanted RF energy in the frequency
above 1500Mhz. It is used in the output of the TWT
eliminates harmonics and spurious signals. The
manufacturer has experienced a three-fold benefit by
using the Flexible Filter: (1) material cost savings;
weight savings; and (3) labor cost savings due to ease
The Filter is now being used as apart of cable assembly by
a leading manufacturer of microwave tubes and equipment.
The high attenuation characteristics of this filter has enabled
low-cost built-in EMI suppression of the power lines to
microwave equipment with a resulting cost savings. Six-inch
lengths, series-inserted in a cable harness, provides over
100dB of attenuation from 150Mhz to above 45GHz.
• Suppression of EMI generated by TWT’s, magnetrons,
klystrons, microwave heating tubes and other microwave
• EMI suppression occurring in electronic-
equipment of all types, and by microwave
• Harmonic suppression in microwave
systems such as radar,
telecommunications, radio relay
systems and transmitters.
• Line and in-circuit EMI suppression
in power supplies, test
equipment, instrumentation, amplifiers,
• Radio noise suppression due to resonances, mutual coupling,
undesired oscilations and spurious radio frequency energy.