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Home > News > Industry News > Modules ease 60GHz point-to-po.....

Modules ease 60GHz point-to-point comms

  • Author:Ella Cai
  • Release on:2017-12-05
Lattice Semi has announced 60Ghz modules with built-in phased array antennas for links up to 300m – in cities for example.

Designed for point-to-point and point-to-multi-point operation, and branded GigaRay, the firm is demonstrating the modules in a complete terminal weighing less than 1kg.

The modules are in pairs, together called MOD65412, based on technology acquired when Lattice bought SiBeam along with Silicon Image in 2015.

‘Wireless backhaul in a box‘ – a <1kg <10W 30x20x3cm demonstrator

The SiI6342 transmit-receive phasing chip sits in the middle of a 52 x 64mm PCB, between the receive and transmit micro-patch antenna arrays (see image), while the baseband silicon (SB6541) comes on a half-height PCIe mini card (28 x 30mm) designed to be clipped into a network processor board.

Between the modules runs a flexy-PCB cable, certified for lengths up to 500mm, but likely to be capable further separation, Lattice business development director Neil Bullock told Electronics Weekly.

Lattice GigaRay starter kitTo go with the baseband board, there is a Linux open-source device driver, and together the modules cables and driver have FCC certification – with certification for other regions under evaluation.

The radio protocol is essentially WiGig, said Bullock, although ti is not yet being promoted as such. “In principle there is the possibility of interoperability”, he said. However, “there is some way to go for this market, and we are not putting much emphasis on interoperability yet”.

Once fixed in position, the beam can be steered over +/-45° for installation and maintenance, and during operation for multi-point operation. Vertically, the beam is +/-10° wide and fixed.

The ‘Wireless backhaul in a box’ demonstrator operates on under 10W, allowing it to be powered via 13W power-over-Ethernet.

A starter kit (SK65415) is available, that includes: the module set, and a Intel Core i5 dual-core motherboard with 64Gbyte SSD, 4Gbyte ram, a

Fedora 19 distribution, evaluation software and performance measurement utilities.

Potential applications for the modules, said Bullock, include wireless broadband, Metro Wi-Fi, 4G LTE small cells, enterprise use with in companies, and for smart cities.