DIELECTRIC ANTENNA FED BY COAXIAL TO SUBSTRATE INTEGRATED WAVEGUIDE TRANSITION
IOANA GIANGU, VALENTIN BUICULESCU 1. âPolitehnicaâ University of Bucharest, 1-3 Iuliu Maniu Blvd., 061071, Bucharest, Romania
2. National Institute for Research and Development in Microtechnologies - IMTBucharest, 126A Erou Iancu Nicolae Street, 077190, Voluntari - Bucharest, Romania
A low-cost antenna has been designed and tested forRFID related applications, considering radiation into free space or close proximity of large ground planes. The antenna is fed by broadband transition from coaxial connectors to a substrate integrated waveguide(SIW). A rod type element is used for signal radiation. Radiation patterns are compared for both normal ground planes, i.e. the wide SIW walls, and extended ground plane, similar to the antenna placed upon conductive wide areas. The antenna is manufactured on standard FR-4 dielectric material, using regular printed circuit board technology.
