NASA tests 3D-printed antenna for low-cost communication solutions

A NASA team has developed a 3D-printed antenna and successfully tested it with a weather balloon. The aim of the project was to demonstrate a cost-effective way of transmitting scientific data to Earth. The antenna was developed and tested in just three months and could have a significant impact on future space missions.

For the test, the Near Space Network Initiative team collaborated with the 3D Printing of Electronics group at the Goddard Space Flight Center. The antenna was made from a ceramic-filled polymer with low electrical resistance. By using a special 3D printer, the material was optimized in terms of electromagnetic and mechanical properties. The conductive elements were applied using a special inkjet printer to ensure high precision.

After production, the antenna was tested in the electromagnetic anechoic chamber at the Goddard Space Flight Center. This shielded room prevents electromagnetic interference and simulates the space environment. The performance and signal strength of the antenna was tested there before final tests were carried out at the Columbia Scientific Balloon Facility in Texas.

During the flight, the antenna was raised to an altitude of around 30 kilometers, where it connected to the Near Space Network. The data transmission was compared with a conventional antenna to evaluate the performance of the 3D-printed variant. The results showed that additive manufacturing technology can enable fast and customized communication solutions. NASA sees potential in this technology to make communication systems for future missions more cost-efficient and flexible.