Recent advances in antennas
“I have always been convinced that antennas would become a popular theme of intellectual property development as they used to be very large. Now you have the technology in a watch, so things have certainly moved on,” he says. “This transition to smaller devices really interested me and in the year 2000 I helped form a company called Sarantel to develop tiny antennas that made accurate position measurements.”
After 13 years, Oliver joined a Japanese firm to learn more about advanced manufacturing processes and went on to launch another company focused on designing tiny antennas that could be fitted to connected autonomous vehicles.
He teamed up with a business partner to form a company that became Helix Geospace, of which Oliver is now Chief Technology Officer, and won a grant to create an accurate GNSS antenna to operate with signals from the Galileo constellation of spacecraft.
Oliver acknowledges that the widespread use of connected autonomous vehicles in the UK is still some way off, but says work must be done now to prepare for future applications.
“The technology has to reach a threshold of acceptability where the insurance industry believes that connected autonomous vehicles are delivering greater safety than the incumbent, manually driven fleet of vehicles,” he explains. “It also has to be 100 times better than people, and we are working to show a vehicle’s position in a city to an accuracy of 10cm.”
Alongside its work on connected autonomous vehicles, the company continues to develop technology for unmanned aerial vehicles used to carry parcels. “We are also now developing systems that protect GNSS from being spoofed; by measuring the direction in which a signal arrives and checking its veracity against the known position of a satellite.
“We think that GNSS is going to be the primary navigation system for connected and autonomous vehicles in future, but it is important that it is accurate and dependable when used in a busy cityscape,” he adds.
The antennas being developed for the cars are very small: as little as 3 or 4mm in diameter and 6mm tall. But the scope of opportunity could, Oliver says, “be absolutely enormous”. When it comes to transmitting and receiving data, he adds, “small antennas could be the modern day equivalent of lightbulbs”.