Research areas on Electronic Systems
Electromagnetic compatibility (EMC)
Wireless and radio technologies are pervasive, with a steady increase of electronic components in everyday life. At Luleå University of Technology, we research and teach on Electromagnetic Compatibility or EMC.
EMC is concerned with the generation, transmission, and reception of electromagnetic energy. The introduction of digital signal processing and computation brought the present emphasis on EMC. The most significant increases in the interference problem occurred with high-density electronic components such as the bipolar transistor in the 1950s, the integrated circuit (IC) in the 1960s, and the microprocessor chip in the 1970s. The frequency spectrum also became more crowded with the increased demand for voice and data transmission.
Electromagnetic compatible devices should not cause interference with themselves or cause the malfunction of nearby devices. Electronic devices can be incompatible with other devices, or even with themselves. The ”incompatibility” shows as Electromagnetic Interference (EMI). Interference is the undesirable effect of noise. Noise is any electrical signal present in a circuit other than the desired signal. Noise cannot be eliminated, but interference can. Noise can only be reduced in magnitude until it no longer causes interference.
Would one drive an autonomous electric car that has not passed the electromagnetic compatibility tests? Or, would one work in a robotic factory where electromagnetic interference has not been assessed? The need for competent engineers in the EMC field is and will only grow. At LTU, we have the knowledge and the equipment to prepare the EMC engineers of the future.
Electronic design
The Electronic Design group at performs research on analog and mixed-signal design for sensor systems, embedded systems, and vehicle electronics. The group covers a wide range of projects, ranging from high efficiency motor drives, through wireless platforms for sensor networking, down to low-noise transistor design on silicon.
The group has through the Europractice cooperation possibilities to manufacture on-chip designs in a wide range of processes. A well-equipped microelectronics laboratory allows chip scale handling and mounting such as die bonding and wire bonding, as well as traditional surface mount technology. The laboratory is also well equipped for on- and off-chip measurement purposes.
The Electronic Design group at performs research on analog and mixed-signal design for sensor systems, embedded systems, and vehicle electronics. The group covers a wide range of projects, ranging from high efficiency motor drives, through wireless platforms for sensor networking, down to low-noise transistor design on silicon.
The group has through the Europractice cooperation possibilities to manufacture on-chip designs in a wide range of processes. A well-equipped microelectronics laboratory allows chip scale handling and mounting such as die bonding and wire bonding, as well as traditional surface mount technology. The laboratory is also well equipped for on- and off-chip measurement purposes.
Measurement technology
The measurement technology group's activities are focused on mainly two areas, ultrasound for biomedical applications and high-power ultrasound for process intensification.
Measurement technology at LTU has long traditions and is conducted in various forms at two departments. At the research group of Electronics Systems research in measurement technology has largely been based on ultrasound with various application areas, ranging from flow measurement to photoacoustic tomography in inhomogeneous media.
In biomedicine, the activities are focused on thin 2D sensor arrays with associated electronics. The next step is to miniaturize the technology and instead use piezoelectric microelectromechanical arrays, PMUTs, where electronics for control, transmission, reception and signal processing are integrated close to the array.
Ultrasound with significantly higher power is used for process intensification in various chemical or physical process flows. Together with the division for technical acoustics, we have shown by using ultrsound driven, cooperating resonant structures that the technology has positive effects on chemical processes such as mineral leaching. The research is now focused on methods for optimizing physical intensification processes.
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