GaN High-Frequency Electronics

GaN High-Frequency Components for Communication, Radar, Test and Measurement

Based on the compound semiconductor gallium nitride (GaN), Fraunhofer IAF researches, develops and manufactures world-leading high-performance and efficient high-frequency electronics along the semiconductor value chain. The focus is on

  • Components and modules: High electron mobility transistors (HEMTs) and monolithic microwave integrated circuits (MMICs) for power amplifiers (PA), high power amplifiers (HPA) and low noise amplifiers (LNA) as well as switches, mixers, etc.
  • Applications: Mobile communication and satellite communication (5G and 6G), radar systems, high-performance measurement systems
  • Services: Specific epitaxy and technology development according to individual requirements in research and industrial projects or as a direct order
Cell tower in the middle of an autumn forest
© steheap – stock.adobe.com​
Fraunhofer IAF develops high-frequency power electronic components for 5G and 6G mobile communications
Wafer comprising micro chips, photographed in red light
© Fraunhofer IAF
Processed multi-project wafer based on GaN
Circuit design
© Fraunhofer IAF
Integrated E-band front-end MMIC

Robust and efficient GaN components for maximum performance and efficiency at high frequencies  

Global networking traffic is increasing, the volume of data transferred is growing and industrial production processes are becoming ever more complex. In order to meet the constantly growing requirements, ever more powerful and efficient high-frequency electronic components are needed to enable reliable, high-performance connections — both on earth and in space. Based on the III-V compound semiconductor GaN, Fraunhofer IAF develops high-frequency electronics for communication, radar and test and measurement systems at high operating voltages and frequencies along the entire value chain. It sets global standards in terms of power density, efficiency and robustness.

GaN HEMT MMICs up to 200 GHz — from design to system

The extensive know-how of the researchers and the comprehensive research infrastructure at Fraunhofer IAF enable the requirement-specific realization of GaN high-frequency electronics as well as corresponding services at all production stages: from circuit design to material growth, processing (also on multi-project wafer runs) and characterization of integrated circuits (ICs) based on HEMTs to the construction of modules and (sub-)systems. 

Partners and customers from industry and science have access to a self-developed process family for GaN high-frequency technologies with gate lengths of 500, 150, 100 and 70 nm (GaN50X–GaN07), which enables the reliable production of MMICs with frequencies in the microwave range (mmW, here: up to 200 GHz) — even in small series. These are used individually or highly integrated as low-noise amplifiers, power amplifiers, high-power amplifiers or as complete front-end modules (FEMs). 

 

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Examples of GaN HPA, PA and LNA Development

Fraunhofer IAF’s capabilities in the field of GaN high-frequency electronics are available to scientific institutions and companies both for the implementation of research and development projects and as part of direct orders. Past projects were able to achive outstanding results:

Golden power module consisting of several components on a white background
© Fraunhofer IAF
GaN-based solid-state power amplifier (SSPA)

High-performance solid-state amplifiers in Ka-band for radar, point-to-point links and satellite communication

  • Power: > 100 W
  • Efficiency: > 20 %
  • Frequency range: 28–38 GHz
Close-up of a transistor
© Fraunhofer IAF
7 GHz power transistor (internally matched field-effect tranisitor, IMFET)

7 GHz power transistor for radar and space communications

  • Voltage: 100 V
  • Power: 100 W CW
  • Design adapted to 50 Ω 
Two golden amplifier modules on a white background, the one in the front has a tag showing performance data
© Fraunhofer IAF
D-band waveguide modules featuring Fraunhofer IAF GaN MMICs

D-band modules for 6G mobile communications

  • Frequency range: 130–160 GHz
  • Psat: 18 dBm
  • WR 06 split block

Research and Development Portfolio

Get an overview of the F&D portfolio of Fraunhofer IAF in the field of GaN high-frequency electronics.

 

Epitaxy

  • Substrates
  • Material systems
 

Technologies, components, circuits

  • Institute-specific process lines GaN50X–GaN07
  • HEMT MMICs up to 200 GHz
 

Assembly, modules, characterization

  • Module manufacturing
  • Measurement services

Range of Services in GaN High-Frequency Electronics

Our capabilities

  • Design and simulation of GaN-based devices, circuits and modules
  • Lateral and vertical GaN technologies
  • MOCVD-based GaN epitaxy and epitaxial development up to 8'' wafers
  • Individual technology development
  • Processing up to 4'' wafers
  • Characterization of components and circuits
  • Manufacturing of components and modules
  • Manufacturing of demonstrators
  • Small series production

Your benefits

  • Development and manufacturing according to application specifications
  • High power density and efficiency
  • High robustness and reliability
  • Highly integrated and compact modules
  • Precise in-house measuring capacities

Current Research Projects in GaN High-Frequency Electronics

Further information

Flyers for download

 

Learn more about our research and development activities and our range of services.

Scientific publications

 

Get to know our latest research results.

Collaboration opportunities

 

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