The note studies the effect on ground plane size (across 40×20 to 75x54mm) on the effectiveness of its 3x12mm (2.4mm high) FR01-S4-224 surface-mount antenna, operating in this case in the 863-928MHz band.

“IoT could be anything around and the challenge for the antenna is to be adapted to this situation as soon as possible. With this antenna design, Fractus Antennas offers a new way of going wireless by using a surface mount chip antenna that can easily be assembled, using the pick and place machinery, in production on the main printed circuit board of any IoT device and with any size form and factor,” claims the firm, which has designed the FR01-S4-224 to cover multiple bands: 698-960MHz, 1.71-2.69GHz and 3.4-3.8GHz.

An L-L-C matching network is required for each situation, designed initially from the PCB area, with components finally selected depending on the effect of nearby components on the final PCB. “Placing pads [for the network] compatible with 0402 and 0603 SMD components for a matching network as close as possible to the feeding point is highly recommended,” said the firm.

Founded as an independent antenna business in 2015, Fractus Antennas was born out of the main Fractus operation and combines a respected R&D team with proven manufacturing capabilities and scale to bring to market a new genera-on of antenna products to meet the mobile and wireless connectivity needs of OEMs.