Stockholm, Sweden – April 24, 2025: TERASi announced the development of highly compact waveguide filters designed for E-band (71-86 GHz) communications, continuing with its commitment to technological innovation. Leveraging TERASi’s Aircore™ technology platform, this microscopic filter is 40 times smaller than existing alternatives, while maintaining industry leading performance. This announcement comes on the heels of a recent success with the wafer-scale Aircore™ packaging technology powering the World’s Biggest 6G Antenna, further solidifying TERASi’s position in the development of next-generation communication technologies.

Waveguide filters are essential for ensuring signal clarity by preserving signal integrity and blocking unwanted frequencies that can cause interference. The advanced filters are designed for very sharp roll-off and high rejection, however with TERASi’s Aircore™ technology, they achieve an insertion loss of lower than 0.4 dB, which maximizes the link signal-to-noise ratio. Additionally, the filter's sharp cutoff and high out-of-band rejection enhance overall link performance, ensuring reliable and efficient communication.

An image showing the measured performance of TERASi's 71-76 GHz channel selection filter.
Measured performance of TERASi's 71-76 GHz channel selection filter.
“Our filters challenge the conventional belief that reducing component size has to compromise its performance. In the context of E-band radios, commonly deployed for 5G backhaul, minimizing physical footprint is crucial. Our design addresses both concerns. It delivers highly selective, low loss filtering in a package that is orders of magnitude smaller and lighter than typical industry standards”, shares James Campion, CEO, TERASi.

Manufactured at TERASi’s facilities in Stockholm, Sweden, these ultra-light filters are over 100 times smaller than conventional solutions. TERASi’s wafer-scale Aircore™ platform replaces manual processes with a fully automated solution ideal for high-volume manufacturing.

The microscopic waveguide filters are part of a larger initiative. The recent reveal of TERASi’s advanced System-in-Package (SiP) solution for mm-wave front-end modules, powered by Aircore™ 's superior performance, drives the complete RF front-ends. This establishes the groundwork for sophisticated, integrated modules for upcoming communication and sensing technologies.

 About TERASi

TERASi is a Swedish-based company specializing in developing and delivering next generation high-frequency wireless solutions that combine cutting-edge design techniques and scalable manufacturing. The breakthrough Aircore™ technology enables high-performance, high-volume production of system-in-package modules, driving advancements in 5G, 6G, and beyond. With a focus on innovation, scalability, and efficiency, TERASi is reshaping how communication technologies are developed and deployed at scale.

TERASi's manufacturing facilities are hosted at the Electrum Laboratory, a leading research & development facility with 1300 m2 of cleanroom laboratories.

For more information, visit TERASi

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