Telemeter Launches 3D-Printable Absorber Filament for 76 to 81 GHz Automotive Radar

Telemeter Electronic announced a new 1.75 mm filament formulated as an electromagnetic absorber for desktop FDM/FFF printers, targeting the 76–81 GHz automotive radar band while spanning broader millimeter-wave bands from 50 to 100 GHz. The company describes the material as PLA and positions it as a way to produce printed absorber parts that both fit complex geometries and damp electromagnetic energy in relevant mmWave frequencies.

As vehicles add more radar and higher frequency sensor packages, labs and integrators keep running into the same practical problem: absorber parts rarely fit the geometry they actually need. Traditional absorber foam and machined fixtures work, but they are often bulky, slow to iterate, and awkward around complex housings and tight measurement setups. Additive manufacturing has been working on this problem for years, mostly through custom fixtures, housings, and antenna mounts produced on desktop machines. The missing piece has been material performance: common polymers can form the shape, but they do not really dampen electromagnetic energy in the right bands.

Telemeter’s filament is presented for explicit test and measurement roles: printed absorber parts for measurement and test setups, custom fixtures, housings, and antenna mounts on desktop machines. The vendor states the material is tuned for automotive radar frequencies 76–81 GHz and that the coverage from 50 to 100 GHz reaches into the E to W band region used in specialized sensing, research, and advanced RF test setups.

Key commercial and technical details remain unreported. The company did not provide pricing, spool sizes, colour options, or regional distribution information, and those basics will influence whether this new PLA becomes a niche lab material or something that quietly spreads across automotive engineering teams. No published datasheet or measured absorption figures accompanied the announcement; there are no cited attenuation numbers in dB, no permittivity or loss tangent values, and no recommended print settings such as nozzle temperature, bed temperature, layer height, or sample thickness.

This product fits into a recent materials narrative where functional filaments move beyond strength and temperature resistance into electromagnetic behavior. For many years, ‘functional’ filaments meant strength, temperature resistance, or conductivity, and even those often came with tradeoffs. Materials that directly target high-frequency electromagnetic behavior are a different kind of function: they turn a desktop printer into part of an RF workflow, not just a mechanical one. That could change if this interesting material catches on, but widespread adoption will depend on verified performance data, affordable spool sizes, and clear availability.

Verification will require a Telemeter datasheet with measured absorption performance across 50–100 GHz, recommended print parameters for effective thickness and mounting, and independent lab tests to confirm usefulness in 76–81 GHz automotive radar setups. Until those details appear, the announced 1.75 mm PLA absorber remains a promising development with practical potential for compact, iterative RF test hardware.