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TUBULAR/COAXIAL FILTERS


Tubular/Coaxial filters offer many advantages over other topologies for bandpass and lowpass filters. Because of the mechanical configuration, they offer very broad stopbands and very high rejection.

Using capacitively coupled dielectric spacers and high precision surface finishes, tubular filters are ideal for handling high-power applications.

Known for their high unloaded Q, API Technologies tubular filters have inherently broad stopbands with very high rejection levels. Tubular Filters are only available in Bandpass and Lowpass filter designs.

We use silver plating during extreme low loss applications.

We use silver plating during extreme
low loss applications.

Highest ultimate rejection possible, providing superior out of band attenuation.

Highest ultimate rejection possible, providing superior out of band attenuation.

Designed to handle up to 5,000 watts with low loss and sharp rejection.

Designed to handle up to 5,000 watts with
low loss and sharp rejection.

Our tubular filters have inherently broad stopbands with very high rejection levels.

Our tubular filters have inherently broad stopbands with very high rejection levels.

Precision center-less ground stock allows extremely tight tolerances.

Precision center-less ground stock
allows extremely tight tolerances.

Tubular filters offer many advantages over other topologies for bandpass & lowpass filters.

Tubular filters offer many advantages over other topologies for bandpass & lowpass filters.

Provides excellent harmonic suppression.

Provides excellent harmonic suppression.

FEATURES
Superior Performance

Superior Performance

To download more information about our superior performance, click here! To message to one of our engineers about our superior performance, click here! To request pricing information about our superior performance, click here!
  • Precision center-less ground stock allows extremely tight tolerances and thereby yields consistent unit-to-unit performance.
  • Learn more about our fully-customizable filters today!
Low Loss and High Rejection

Low Loss and High Rejection

To download more information about our low loss and high rejection, click here! To message to one of our engineers about our low loss and high rejection, click here! To request pricing information about our low loss and high rejection, click here!
  • API Technologies tubular filters are designed to handle up to 5,000 watts, with low loss and sharp rejection.
  • Email one of our experienced engineers to learn more today!
Silver Plating for Low Loss

Silver Plating for Low Loss

To download more information about our silver plating for low loss, click here! To message to one of our engineers about our silver plating for low loss, click here! To request pricing information about our silver plating for low loss, click here!
  • For applications where low loss is critical, we use silver plating to achieve extremely low loss.
  • Join us on the API Technologies Filters Tour to learn even more!
Superior out-of-band Attenuation

Superior out-of-band Attenuation

To download more information about our superior out-of-band attenuation, click here! To message to one of our engineers about our superior out-of-band attenuation, click here! To request pricing information about our superior out-of-band attenuation, click here!
  • API Technologies designs offer the highest ultimate rejection possible, providing superior out of band attenuation.
  • Information on tubular filter pricing is only a click away, request a quote!

TUBULAR FILTER EXTRAS