The SR4I051 antenna from Antenova is an 868/915 MHz ISM Band Antenna developed specifically for use on metal surfaces. The antenna is only 1.6mm thick and has been designed for industrial IoT markets - in particular for lighting applications. The REFLECTOR antennas are manufactured with a layered construction which allows them to function well when mounted on or close to metal surfaces. The antenna can be placed against any material and will not need any adjustment or tuning.
This is a rigid antenna with a cable which can be connected directly to the host device which can be metal or plastic. The antenna is designed for easy integration with a cable available in two lengths: 100mm and 150mm.