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Cavity Filters

Very low insertion loss and high selectivity

Cavity filter designs are available in the frequency range of 30 MHz to 51 GHz and with bandwidth options from less than 0.5% to over 66%. Cavity filters offer the user very low insertion loss, steep skirt selectivity, and narrower bandwidths than discrete component filters.

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Features & Benefits

  • 30 MHz to 40 GHz
  • Bandwidth: 3 dB from 0.5% to 66%
  • High “Q”, low loss
  • High power
  • Helical, combline, inter digital, and waveguide

Applications

  • Military
  • Commercial Aerospace
  • Satellite Communications
  • Test and Measurement

Overview

Smiths Interconnect’s cavity filters offer the user very low insertion loss, steep skirt selectivity, and narrower bandwidths compared to discrete component filters. Designs are available in the frequency range of 30 MHz to 40 GHz and with bandwidth options from less than 0.5% to over 66%.

High “Q” standard and custom designed models offer the lowest insertion loss and best selectivity available for military and commercial applications. Standard cavity filters generally are designed using aluminium as the base metal. As most raw metals are inherently lossy, filter housings are silver plated for improved electrical characteristics and current flow. Brass, copper, aluminium or bi-metal resonators are used to minimize frequency drift over temperature. Each filter is semi custom-designed to your exact specification so that you will receive the optimum performance at the lowest cost.

Filter performance is easily predicted using our proprietary software, while CAD files are generated for our CNC machine and fabrication center. Complex designs and working drawings can be generated in a matter of a few hours...not weeks.

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