Processo de produção de filmes grafíticos ultrafinos e filmes grafíticos ultrafinos assim obtidos
Engenharia Elétrica
Antenna of double band and use of the same in [rfid]
NOVELTY – The antenna has two radiator elements located at opposite faces of a substrate. One of the radiator elements is connected with a horizontal arm, and another radiator element is connected with a vertical arm, where external corners of the two radiator elements are designed at an irradiation angle of 45 degrees. A substrate is made of fiber glass, ceramic materials and tissue phenolite. Irradiators are located at distances (S1, S2) on opposite faces of the substrate. USE – Double band antenna for radio frequency identification (RFID) system. ADVANTAGE – The antenna utilizes the material with high tolerance for electrical, allows applications on various devices of microwave, and improves the factor of quality by reducing the losses of antenna. The antenna is simple in structure, light in weight and inexpensive to manufacture, and has flexible radiation angle. DESCRIPTION OF DRAWING(S) – The drawing shows a sectional view of a double band antenna. ‘(Drawing includes non-English language text)’ Dimensions of horizontal arm (L15) Distances on opposite faces of substrate (S1, S2) Width of antenna (w)
Main Application Field
Q74 (Heating, ranges, ventilating (F24)); T04 (Computer Peripheral Equipment); W02 (Broadcasting, Radio and Line Transmission Systems); W06 (Aviation, Marine and Radar Systems)
INVENTORS:
ARNOLD FRANCISCO JOSE
ROGER LEONARDO LORENZO BRAVO
GONCALVES MARCOS SERGIO
GRILO MARCUS
