Connected indoors

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Indoor connectivity problems can be solved

Modern society is critically dependent on ever growing wireless connectivity. Wireless connection is frequently the only outbound connection for households. In parallel energy saving regulations are tightening and modern construction supplies such as aluminium coated insulators and low-E windows attenuate mobile signals like never before. This causes low data rates and even dropped calls. When integrated in walls StealthCase’s patented passive signal bridges solve these problems once and for all.


Passive signal bridge

FF-Signal, a passive signal bridge integrated into a separate insulator element, installed next to a window during an installation phase. Powered by StealthCase technology, produced and marketed by Finnfoam.

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Tiivi Connect, Pihla Antenna and Elitfönster Access. Award-winning innovative glass antennas that allow mobile signals to pass through window glass. Powered by StealthCase technology and manufactured by Pihla and Elitfönster

Next product

StealthCase holds core IPR to passive repeating structures. We are constantly looking for new fields of applications for our technologies.


Janne Mansikkamäki

CEO, Co-founder

M.Sc. who has studied digital communications, signal processing and RF technology. Janne has over ten years of experience in project management and contracts. Janne is responsible of everyday operations.

Juha Lilja

CTO, Chairman of Board, Founder

Juha studied electromagnetics and has specialized in antenna and RF design. Juha is an innovation power house with several patents and extensive experience in military, space and mobile industries. Juha is responsible for product development and R&D.

Antti Kallonen


M.Sc. that has worked years with critical software systems and is responsible for our infrastructure. With his background as a member of board in several other companies, Antti provides valuable support for our business development.

Contact information

We are looking for pilot customers in IGU, aluminium-coated insulators, uPVC windows, containers, public transports and ship building. If you are interested to provide future wireless-proof solutions, contact us!

StealthCase Oy; PO Box 74; 33101 FINLAND Mika Partanen (Business Development, North America)