Farsoon SLS 3D printing know-how for the manufacturing of car antennas

Farsoon’s Laser powder bed fusion 3D printing technology is used for the serial production of vehicle-mounted antennas from Rhosoon Intelligent Technology.

The civil antenna and terminal solutions provider has been using 3D printing for many years and applies this technology in its product planning and design review processes.

The company uses Farsoon’s 403P 3D printing platform and has developed a 3D printing device that is said to be significantly smaller and lighter than conventional vehicle antenna systems. During the development of the printed antenna system, the “Lüneburg lens” design concept was implemented, which has a spherically symmetrical gradient index design. This enables a “radical index refraction from the center to the surface”, which enables a “good convergence and directional refraction” of electromagnetic waves and can transmit multiband signals.

Farsoon’s 403P machine is able to manufacture Rhosoon’s Lüneburg lens antennas in one piece without support structures, and this with FS3300PA, a PA1212 material. The resulting product is said to have stability, dielectric constant and durability under high temperature conditions.

Rhosoon has used Farsoon 3D printing technology throughout the workflow, making antenna systems using the same method and material that was used to prototype the design. The company is said to have both the ability of the technology to print in fine detail resolution and its own technology to adapt antenna designs to the requirements of each application. Using 3D printing has also reduced the time from design to launch of products, according to the company.

“Farsoon laser powder bed fusion technology has saved us so much of the investment costs that were required for production tools and molds, especially custom products and small batch production,” commented a Rhosoon spokesperson. “Let’s take an antenna product with a diameter of 80 mm, for example. Now we can achieve 48 high quality production pieces per day with a single Farsoon 403P machine – it is a perfect solution for economical low volume and spare parts manufacturing.

“With the rapid development of antennas and 3D printing technology, we envision a more compact communication device that is as small as a notebook and offers real cost savings to enable a comprehensive introduction of the integration of satellite-terrestrial communication in the near future. “

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