High-speed contactless connector based on 60GHz wireless technology

October 18, 2021 // By Rich Pell
High-speed contactless connector based on 60GHz wireless technology
RF, fiber optic and high-voltage connectivity solutions provider Rosenberger and semiconductors manufacturer STMicroelectronics have collaborated on a contactless connector for ultra-reliable, short-range, point-to-point full-duplex data exchanges in industrial and medical applications.

The contactless connector, the RoProxCon, leverages ST’s 60GHz RF transceiver, the ST60A2, to deliver high-speed data transmission while providing immunity to movement, vibration, rotation, and contaminants such as moisture and dust, which can disrupt conventional pin-and-receptacle interconnects. The ST60A2 combines high-data-rate transmission at Bluetoothâ-like power consumption and promises a new range of medical and industrial applications that are no longer constrained by physical connections.

"Pairing ST’s contactless connectivity technology with our interconnect expertise and antenna-design knowledge enabled us to create a first-of-its-kind module that transmits full duplex data at up to 6 Gbps with complete rotational freedom," says said Folke Michelmann, Executive Vice President Medical & Industries at Rosenberger. "Much less expensive than alternative optical connectors and using much less power than other RF technologies, the RoProxCon will let innovators loose to create new applications. In working with ST, we see limitless application possibilities for our connector, which provides high-reliability and high-throughput at low power."

Laurent Malier, RF&Communications Division General Manager, STMicroelectronics adds, "We developed the ST60A2 contactless transceiver to allow customers to create reliable, high data-rate, extremely power-efficient wireless links. Rosenberger’s expertise in interconnects combined with our RF chip is an outstanding example of the value of the technology. Customers across the full range of electronics applications have expressed interest in this transceiver and several have shared their need for a module that includes the antenna. Our cooperation project with Rosenberger delivers on that need."

The ST60A2 offers reliable, point-to-point, high-data-rate transmission of up to 6.25 Gbps over distances of a few centimeters. Operating over an extended temperature range of -40 to +105°C, the chip ST60A2 is offered as being well suited to industrial markets. With a 2.2 x 2.2 mm package footprint, the chip is the smallest device available on the market with ultra-low power consumption of 70 mW for a reliable, completely contactless link, says the company.

In the RoProxCon, ST’s transceiver is paired with an


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