ABOUT US

A safer connected society.
That's what we work for.

Our Mission

Our mission at RanLOS is to provide our customers with the most cost-efficient and easy to use test systems for vehicles, base stations, antennas and other connected devices. We want to contribute to a safer connected society and enabling customers to lower their costs and shorten their product development process.

Built by expert knowledge and years of experience

The idea of an affordable and easy-to-use OTA measurement system using Random Line-of-Sight (RanLOS) technology came from Professor Per-Simon Kildal (1951-2016) at Chalmers University of Technology.

As a result RanLOS AB was founded in 2016 and has been granted several patents of the Random Line-of-Sight technology. The products have been realized by PhD Madeleine Schilliger Kildal and Professor Jan Carlsson among others.

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 gap-waveguide based mmWave antennas.
RanLOS mission is to provide cost efficient, accurate and repeatable test technologies and systems for characterizing wireless devices.

Milestones at RanLOS

Milestones at RanLOS

2018
2018
2019
2022

Distributors

Toyo Corporation

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

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

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.

How does the Random Line-of-Sight (RanLOS) technology work?

When radio waves are sent to an antenna, they are spherical in the near field but becomes a plane wave in the far field. RanLOS has developed an innovative and portable solution to convert near field waves to far field waves at a distance of only a few meters. RanLOS products consists of an antenna array with a series of antennas that send signals to a reflector and when the waves bounce off the reflector, they are converted into plane waves.

An example from a real environment is when a base station sends a signal to a vehicle on a country road, then a plane wave directly hits the antenna of the vehicle at a random angle. To test this in a controlled test environment, direct plane signals are sent at different angles to the communication system of the vehicle. The entire process is controlled by RanLOS’ measurement software, which performs a measurement in five simple steps. The results are presented in easy graphical layout and can be exported to be used as input data for simulations for autonomous vehicles for example.

We know that measuring connectivity aren’t done regularly throughout the product development process today. A big reason for this is costs together with lack of time and test lab capacity. That’s where our solution comes in. You can set it up at your current location and measure as much as needed – everyday if you want to. With our products you can boost connectivity in a cost-efficient and flexible way. To start measuring more frequently during the whole product development process helps to make sure your connected devices are optimized and reliable, something that is vital in today’s connected society.

Madeleine Schilliger Kildal

PhD / System and Application Engineer at RanLOS

Why over-the-air (OTA) measurements are important today:

The last couple of years it has become more difficult to measure communication systems in, for example, vehicles. A communication system today usually consists of one or more antennas and a modem that contains a transmitter and receiver. In the past, it was possible to connect cables to each of these devices in order to measure its performance, but in modern communication systems, these parts are integrated and measurements must therefore be made at the system level.

We help to enhance connected devices with RanLOS over-the-air (OTA) test systems. With our solution you can send wireless signals with information between the communication system to be tested and the RanLOS system. The collected data is used to analyze the device under test with regards to performance and quality.

Our Technology

The RanLOS measurement system is a solution for testing wireless performance of vehicles, base stations, antennas and more. The system provides an over-the-air (OTA) solution for testing all relevant standards; such as 3G, 4G, 5G and WiFi. 

 

Skriva om:
Random LOS, dual polarized feed array, reflektor

Beskriv vad Random Line of Sight är

We aim to create a safer connected society. To do so we need easy to use and flexible solutions for testing wireless performance over-the-air (OTA). It includes all relevant standards today and tomorrow; such as 3G, 4G, 5G and WiFi. Work with us and make your measuring easier, faster and smarter.