RanLOS AB was founded in 2016 by Professor Per-Simon Kildal at Chalmers University of Technology in Gothenburg, Sweden. RanLOS has several patents and pattent applications of the Random Line-of-Sight technology. The technology is based on research conducted by Professor Per-Simon Kildal and his research team at Chalmers.

Professor Per-Simon Kildal has commercialized a number of inventions, e.g., the Comhat antenna, which has been sold in over one million units and is deployed worldwide in Ericsson’s MINI-LINK. Professor Kildal also founded Bluetest AB which has a track record of delivering OTA test systems based on reverberation chambers to all major players in the telecom industry. Another Kildal founded spin-off company is Gapwaves AB, who provides waveguide based mmWave antennas.


Louice Rosdahl CEO

Louice has a master’s degree in Technology Management from Lund University. Before joining RanLOS she was responsible for the unlisted tech portfolio at the investment company JCE and before that she was a strategy consultant at Accenture. She has a broad experience from software and tech companies and has been member of the Board of Directors for e.g. Cybercom, Consafe Logistics and Systemite.

Lars Granbom Sales Director

Lars has a master’s degree in electrical engineering from Chalmers University of Technology. He has over 30 years of experience from technical development projects within telecommunication and radar field of technology. Lars also has extensive experience from project and company management, both in Sweden and internationally. For the past 15 years, Lars has been involved in a number of international projects and has thus established a well-developed international network. Lars specializes in entrepreneurship in the early stages and has in recent years been involved in starting a number of companies. Some of the companies have been listed on Swedish trading venues. 

Madeleine Schilliger Kildal PhD

Madeleine Schilliger Kildal received a Master of Science in Engineering Physics from the Faculty of Engineering at Lund University, Lund, Sweden, in 2013. In 2020 she received a PhD degree from Chalmers University of Technology, Gothenburg, Sweden. Her research cover over-the-air characterization of antenna systems and wireless devices, with focus on the Random Line-of-Sight technology.

Jan Carlsson Professor

Jan Carlsson received the M.S.E.E. and PhD degrees from Chalmers University of Technology, Gothenburg, Sweden, in 1986 and 1998, respectively. Since 2003, he has been an Adjunct Professor at the Department of Electrical Engineering, Division of Communications, Antennas, and Optical Networks, Chalmers University of Technology. Dr. Carlsson has over 30 years of research experience covering EMC, computational electromagnetics, antennas, wireless communications, and microwave measurements.



TOYO Corporation is a Japanese technology company headquartered in Tokyo, Japan. Since its founding in 1953, TOYO has become the leading distributor of advanced measurement instruments and systems in Japan, China and USA.”

”FRANKONIA is recognized as a highly specialized technology corporation for EMC anechoic chambers and test system within the automotive and industrial sector for testing of electromagnetic compatibility.”

“DYMSTEC is recognized for its technological prowess and quality in the domestic mobile, automotive and RF markets through its differentiated EM shielding technology and excellent system integration capabilities based on its skilled EM technology.”

RanLOS mission is to provide cost efficient, accurate and repeatable test technologies and systems for characterizing wireless devices. Our customers benefit from a reliable, accessible and time saving test solution, enabling lower costs and a faster time to market.


Stora Åvägen 21,
SE 436 34 Askim

+ 46 703 19 65 30