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Antenova antenna works on metal surfaces

Steve Rogerson
June 21, 2017
Antenova is shipping a 2.4GHz antenna called Zenon, the first in the UK company's Reflector series. These have been engineered to operate without de-tuning on metal surfaces – or where the product housing is mainly metal – a situation where it is normally difficult for an antenna to operate.

The antennas are formed of two layers, one electrically isolated from the other, so as to provide RF shielding to the second layer. This means the antenna can be placed on any kind of material and it will radiate effectively in the direction pointing away from the base material. It first introduced the Reflector family at Embedded World in Nuremberg earlier this year, where the samples are said to have generated a huge amount of interest.
Zenon, part number SR4W030, is a 2.4GHz antenna for Bluetooth, wifi, Zigbee and ISM. It measures 23 by 16 by 1.6mm, is manufactured from rigid FR4 laminate, and has a 1.13mm cable and Ipex MHF connector. The cable can be specified in standard lengths of 100 or 150mm.
The firm’s development team approaches antenna design with a concept that the company calls design for integration, or DFI, where the final integration of the antenna into the customer’s product is considered right from the start of the design process, and is a major factor shaping the design of the antenna.
Accordingly, Zenon has been designed for quick and easy integration into a design. It is simply fixed in position with a peel-back self-adhesive strip, and can either be inserted into a new design or retrofitted into an existing design. No tuning or matching is required.
“There are very few antennas if any, that are as thin as our Zenon product, and that can be mounted on a metal surface,” said Colin Newman, CEO at Antenova. “This antenna is ideal for devices like lighting chassis in metal cases, or bicycles with metal frames. It could also be used for smart lighting, portable devices, set-top boxes, smart meters and other network devices.”
Antenova provides full design, testing and tuning services for users who are adding wireless capabilities to their IoT devices and other electronic products.