EIVE satellite explores new frequency range in space

June 6, 2023, Nr. 31

Researchers at the University of Stuttgart are pioneers in E-band research for faster data transmission
[Picture: University of Stuttgart / IRS]

The EIVE nanosatellite was sent into space on June 12, 2023. A research team based at the University of Stuttgart is investigating rapid data transmission in a frequency band that has hardly been utilized so far. This is a milestone for future high-speed data communication networks in space.

The EIVE team in front of the EIVE CubeSat in the clean room of the Institute of Space Systems.

After four years of development and testing, a research team based at the University of Stuttgart sent the EIVE (Exploratory In-Orbit Verification of an E/W-Band Satellite Communication Link) satellite into space. "The launch went extremely well," reports Prof. Sabine Klinkner from the Institute of Space Systems (IRS) at the University of Stuttgart. "Shortly before launch, there was a short time delay, but now we are relieved that everything went fine. EIVE was successfully launched an hour after liftoff and successfully completed its first flyover just five minutes later." 

The aim is to establish broadband data transmission over greater distances in order to achieve a global time- and location-independent supply of fast internet. The researchers equipped EIVE with technologies that enable it to transmit the E-band, a frequency range that has yet to be explored in great depth. EIVE is one of the first projects in the world to test such a communications space to ground link with a range of different modulation types and data rates in the E-band at 71–76 GHz. The results obtained will form the basis for future communications satellites.

Technological space miracle ensures rapid data transmission

Measuring about 12 × 24 × 40 centimeters and weighing only 8.8 kilogram, the EIVE nanosatellite easily fits in a shoe box. “We designed EIVE with standardized CubeSat components,” explains Prof. Klinkner. “By using standards, the satellite can be transported into space on virtually any rocket.”

Integration of the satellite in the launch adapter of Exolaunch in Berlin.

Despite its small size, the satellite contains plenty of complex technologies: In addition to the compact satellite bus, which enables operation in space, EIVE has a transmitter for data transmission in the E-band. “This enables a frequency ten to one hundred times higher than we have been using in mobile communications,” says Prof. Ingmar Kallfass of the Institute of Robust Power Semiconductor Systems (ILH). “This is equivalent to a data transfer rate of up to 16 gigabits per second.”

Sensors and actuators ensure that the transmitter is precisely aligned with the ground station for optimal data transmission. Additionally, on board are particularly powerful transmission technologies developed by the Fraunhofer Institute for Applied Solid State Physics (IAF). Thus, in addition to test data, live video data can be transmitted from space to ground using a 4K camera.

In order to be able to receive the E-band signals on Earth, the satellite and the ground station at the University of Stuttgart, which was set up specifically for this project, must be precisely aligned. On the ground, the researchers receive, store, and analyze the up to 12 TB (terabytes) of data generated per flyover.

From start to commissioning

EIVE was launched into space on June 12, 2023 at 11:35 p.m. from Vandenberg Space Force Base in California on SpaceX/Transporter-8. About an hour after launch, the satellite was ejected in low Earth orbit at an altitude of about 520 kilometers and in a polar trajectory. During the following days, work will be carried out around the clock in two shifts in order to check all the systems of the satellite and put them into operation. The researchers will then use EIVE to conduct experiments on E-band communication until at least 2024.

Animated illustration of the 6U EIVE CubeSat in low Earth orbit.

About the EIVE project

In addition to the IRS and ILH of the University of Stuttgart, Fraunhofer IAF and partners from industry – RPG Radiometer Physics, Tesat-Spacecom, Thales Alenia Space Germany, AZURE SPACE, and Exolaunch GmbH – were involved in developing the satellite. The project is funded by the German Federal Ministry for Economic Affairs and Climate Action through the German Aerospace Center (DLR).

Nanosatellite mission EIVE

Duration: 04:23 | © HfK+G*, private Hochschule für Kommunikation und Gestaltung | Source: YouTube
Video transcription

Expert Contact:

Prof. Ingmar Kallfass, University of Stuttgart, Institute of Robust Power Semiconductor Systems, phone: +49 (0)711 685 68747, Email

Prof. Sabine Klinkner, University of Stuttgart, Institute of Space Systems, phone: +49 (0)711 685 62677, Email

This image shows Sabine Klinkner

Sabine Klinkner

Prof. Dr.-Ing.

Professor of satellite technology

This image shows Ingmar Kallfass

Ingmar Kallfass

Prof. Dr.-Ing.

Institute Director

This image shows Jacqueline Gehrke

Jacqueline Gehrke



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