Stora Enso Oyj

Digital Tags Finland, Oy

Ilkka Yli-Peltola

Lauri Huhtasalo

Antti Leskelä

An antenna for an RFID (Radio Frequency Identification) tag comprises two antenna parts being arranged at opposite end areas of the antenna, and at least one intermediate part forming a bridge between the antenna parts. One of the at least one intermediate part comprises power feeding areas to be connected to an integrated circuit. Further, a first gap is arranged in one of the at least one intermediate part, and has a gap length of less than 80 μm, which forms a low impedance path for current at microwave frequencies.

RFID tag with narrow gap for use in microwaveable food packages

An RFID reader antenna () for use in an intelligent cabinet (), such as a smart fridge, is disclosed. The antenna () is configured for operation within the UHF band and has omnidirectional radiation pattern and circular polarization. The antenna comprises a dielectric substrate (), and a ground plane () provided on the dielectric substrate. An aperture () forms an open area within the bounds of the ground plane (). A radiating element () is provided on the dielectric substrate in a plane parallel to the ground plane, and arranged within the open area, when viewed from a direction perpendicular to the ground plane (), and surrounded by the ground plane.

Growing community of inventors

Kangasala, Finland

Ilkka Yli-Peltola