Title :
Very low profile helix antenna feeding resonant cavity for ETC system
Author :
Rimbault, N. ; Sharaiha, A. ; Collardey, Sylvain
Author_Institution :
IETR, Univ. de Rennes 1, Rennes, France
Abstract :
This paper presents the design of a compact high gain circularly polarized antenna for Electronic Toll Collection Identification (ETC) reader covering the global band 5.7255.875GHz. The antenna is made of an axial mode helix mounted inside a resonant cavity. The optimized structure has a total size of 2λ × 2λ × λ/4 and delivers maximum gain of 12dBic and axial ratio lower than 4dB in the bandwidth.
Keywords :
cavity resonators; microwave antennas; ETC system; circularly polarized antenna; electronic toll collection identification reader; frequency 5.725 GHz to 5.875 GHz; helix antenna feeding resonant cavity; Bandwidth; Cavity resonators; Frequency selective surfaces; Gain; Helical antennas; Polarization; AMC; Electronic Toll Collection (ETC); FSS; Helix Antenna; High Gain; resonant cavity;
Conference_Titel :
Antenna Technology and Applied Electromagnetics (ANTEM), 2014 16th International Symposium on
Conference_Location :
Victoria, BC
DOI :
10.1109/ANTEM.2014.6887755
