RF Electronics Group
RF Electronics Group concentrates on research that requires or uses RF simulation tools, measurement techniques, or expertise in RF Electronics. The main research areas include
- Printable electronics characterization, modeling, and RF design
- Printable and wearable antennas, wireless power transfer
- Discrete active RF circuits
Dr. Jouko Heikkinen
+358 40 8490606
Adj. Professor Olli-Pekka Lunden
+358 40 849 0098
Current research projects
Human body embedded physiological monitoring system 8/2012-7/2014 (Tekes, the Finnish Funding Agency for Technology and Innovation). Contact: Riku Mäkinen
Electromagnetic modeling in the printable electronics design flow 8/2008-7/2013 (Academy of Finland). Contact: Riku Mäkinen
The research focuses on the use of EM simulation to establish electrical guidelines (e.g. required conductivity and layer thickness) for printable electronics applications, and with empirical data on the manufacturing process, use this information to select proper manufacturing process and process parameters that meet the electrical specifications. EM simulation is also applied to design new applications that are optimized for the manufacturing technology.
Previous research projects
Parallelized electromagnetic modeling environment for large-scale printable electronics applications 1/2009-12/2012 (Academy of Finland). Contact: Riku Mäkinen
Efficient grid-based techniques based on surface-impedance cocepts to model arbitrarily-shaped lossy thin, penetrable conductors are developed for the explicit time-domain methods. Developed models will be suitable for parallelization, and a parallelized environment based on MPI, PETSc, and SLEPc software libraries is developed to cope with realistic problems and is subsequently applied to the design and analysis of printable electronics applications.
Flexible Electronics for Smart Environment: Wireless Sensor Platform (Flexwise) 7/2010-11/2012 (Tekes, the Finnish Funding Agency for Technology and Innovation). Contact: Riku Mäkinen
Flexible electronics manufacturing concept based on printable electronics technology is developed and applied to design wireless sensor applications. Research concentrates on evaluation (RF electrical performance, environmental testing) of flexible electronics materials such as polymer film substrates and conducting nanoparticle inks as well as integration of electronics components on a flexible substrate. Key design tasks involve printable RF and antenna design. Applications include a flexible wireless sensor for smart sail as well as wearable, stretchable electronics applications.
COSPAS SARSAT Antennas 1/2010-9/2011(European Space Agency). Contact: Riku Mäkinen
Body-worn antennas integrated on life vests for COSPAS-SarSAT search and rescue satellite system are developed. Main focus is on antenna material characterization, antenna design, and the effect of human body on antenna radiation.
http://telecom.esa.int/telecom/www/object/index.cfm?fobjectid=30254 Project pages at ESA
http://www.tekniikkatalous.fi/innovaatiot/suomalaiskeksinto+hurmasi+esan+insinoorit++puettava+antenni+paikantaa+kadonneet/a695443 Tekniikka ja talous
http://www.esa.int/esaCP/SEMFT8HURTG_Finland_0.html ESA Finnish pages
http://video.foxnews.com/v/1244256046001/lost-at-sea-try-the-high-tech-bat-signal Fox News (US TV Channel) Note: Tampere is located in Finland.
Design and modeling of printable electronics applications (DEMOprint) 1/2008-6/2009, (Tekes, the Finnish Funding Agency for Technology and Innovation). Contact: Riku Mäkinen
Wide-band characterization setup for inkjet-printed nanoparticle conductors was developed and applied to printable electronics materials characterization . Suitability of commercial EM and RF circuit simulation software to printable electronics design was evaluated. The focus was on considering conductor loss es of thin nanoparticle conductors. Material characterization results and mode ling expertise were applied to design printable discrete RF circuits and antennas.
Compact antennas for communications applications (KOMPAT) 1/2005-12/2006, (Tekes, the Finnish Funding Agency for Technology and Innovation). Contact: Jouko Heikkinen.
Flexible wearable GPS and FM antennas on cloth substrates were developed. Antennas were manufactured by applying screen printing to substrates such as cotton, gore-tex and polypropylene. The effect of human body and antenna bending on antenna radiation were investigated. In addition, electromagnetic band-gap structures were applied to reduce antenna coupling in antenna arrays and hand-held devices.