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SUSPENDED SUBSTRATE FILTERS


The wide range of realizable impedance values makes Suspended Substrate Filters particularly suitable for highpass and lowpass applications which may be cascaded together to form broadband Bandpass Filters and Multiplexers. Some of our features include:

Realizing complex transfer functions requiring multiple filter topologies in a single package is an option few filter companies can offer. Combining both lumped and distributed elements onto one suspended substrate board, provides enhanced unloaded Q and exceptionally low insertion loss in one design. Suspended Substrate filters offer repeatability because they’re etched as well as excellent frequency stability.

We can offer temperature stabilities of ±0.1% over -55°C to +125°C

We can offer temperature stabilities of
±0.1% over -55°C to +125°C

We also offer immersion silver plating for very low loss designs.

We also offer immersion silver plating
for very low loss designs.

Ideally suited to volume production.

Ideally suited to volume production.

Suited for integrated topologies.

Suited for integrated topologies.

Gold vias provide improved grounding for superior isolation.

Gold vias provide improved grounding
for superior isolation.

Partial removal of dielectric material allows the realization of higher impedances.

Partial removal of dielectric material allows the realization of higher impedances.

We integrate lumped element components with selected suspended substrate designs.

We integrate lumped element components with selected suspended substrate designs.

FEATURES
Innovative Designs

Innovative Designs

To download more information about our innovative designs, click here! To message to one of our engineers about our innovative designs, click here! To request pricing information about our innovative designs, click here!
  • Our engineers select Cauer, pole-placed transfer functions in many of their suspended substrate designs, resulting in highly selective, low insertion loss devices.
  • Request a quote today!
Ultra Stable Design

Ultra Stable Designs

To download more information about our ultra stable design, click here! To message to one of our engineers about our ultra stable design, click here! To request pricing information about our ultra stable design, click here!
  • We use unique, proprietary techniques for temperature compensation and can offer temperature stabilities of ±0.1% over -55°C to +125°C.
  • In this case proprietary temperature compensation techniques are used to ensure frequency stability.
  • Suspended Substrate Stripline devices offer low parts count, small volume, are light weight and are ideally suited to volume production.
Gold Plated Vias

Gold Plated Vias

To download more information about our gold plated vias, click here! To message to one of our engineers about our gold plated vias, click here! To request pricing information about our gold plated vias, click here!
  • Gold vias provide improved grounding for superior isolation.
  • Join us on the API Technologies Filters Tour to learn even more!
Expert Engineering

Expert Engineering

To download more information about our expert engineering, click here! To message to one of our engineers about our expert engineering, click here! To request pricing information about our expert engineering, click here!
  • API’s reputation for designing and delivering some of today’s most challenging RF & Microwave filters is the reason why RF engineers trust us with their Diplexer, Triplexer, and Multiplexer designs.
  • Email one of our experienced engineers to learn more today!

FILTER EXTRAS

DESIGN CUSTOM FILTERS