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LOWPASS FILTERS


API’s reputation for designing and delivering some of today’s most challenging Lowpass filters is the reason why engineers trust us with their designs. Choosing from a wide assortment of topologies, including lumped element, tubular and suspended substrate. Our engineers match the optimum topology to your requirements.

Unlike one dimensional filter companies, SMI continues to prove that by offering multiple options, a customer can weigh the benefits of: size vs. loss, rejection vs. size, selectivity vs. group delay...and select the best filter to optimize system performance.

Fully-Customizable Filter Designs

Tubular filters offer extremely
high ultimate rejection.

Complex Filter Designs

We provide quality assurance by utilizing APQP (Advanced Product Quality Planning).

Better Out-of-Band Rejection, Lower Loss

Innovative approaches allow for
state-of-the-art filters.

Higher Order Filter Designs

These tubular filters feature low
insertion loss and high power handling.

Superior Design Flexibility and Low Loss

Creative layouts are realized to optimize package size and electrical performance.

Contact Us Today to Receive a Quote

We utilize sophisticated software such as SolidWorks to develop customized filters.

Superior Group Delay Performance

Available in many topologies, including lumped element, suspended substrate and tubular.

FEATURES
Rapid Filter Centers

Rapid Filter Centers

To download more information, click here! To message to one of our engineers, click here! To request pricing information, click here!
  • API offers rapid cell lumped element filters covering 1 MHz-3 GHz in Lowpass designs with the following options: SMA connectors, surface mount or PC Pin.
  • Rapid filter solutions are for moderate complexity, standard design options only.
  • Filters within these restraints (for selected applications) can be delivered in as little as 2-4 weeks.
  • Applications include harmonic rejection.
  • Please contact the factory for details and to find out if your requirements fall within these guidelines.
Wide Range of Topologies

Wide Range of Topologies

To download more information about our wide range of topologies, click here! To message to one of our engineers about our wide range of topologies, click here! To request pricing information about our wide range of topologies, click here!
  • API’s lowpass filter expertise includes Lumped Element, Tubular and Suspended Substrate designs.
  • Join us on the API Technologies Filters Tour to learn even more!
Creative Layouts

Creative Layouts

To download more information about creative layouts, click here! To message to one of our engineers about creative layouts, click here! To request pricing information about creative layouts, click here!
  • Utilizing sophisticated software such as Sonnet EM Simulator and SolidWorks, creative layouts can be realized to optimize package size and electrical performance.
  • Learn about more of our customizable features in our Filters Brochure!
Advanced Tubular Filters

Tubular Filters

To download more information about advanced tubular filters, click here! To message to one of our engineers about advanced tubular filters, click here! To request pricing information about advanced tubular filters, click here!
  • Tubular filters offer extremely high ultimate rejection, low insertion loss and high power handling.
  • Learn more about our fully-customizable filters today!
Innovative Designs

Innovative Designs

To download more information about innovative designs, click here! To message to one of our engineers about innovative designs, click here! To request pricing information about innovative designs, click here!
  • In order to optimize performance in a given package size, API Technologies engineers can utilize multiple topologies in a single design.
  • Our key manufacturing facilities also incorporate strategic disciplined processes including APQP (Advanced Product Quality Planning) to ensure that a specific, structured sequence of operations are completed to prevent potential quality problems.

LOWPASS EXTRAS