Title :
Dual-frequency dual-circularly-polarized printed slot antenna
Author :
Bao, X.L. ; Ammann, M.J.
Author_Institution :
Antenna & High Freq. Res. Centre, Dublin Inst. of Technol., Dublin, Ireland
Abstract :
A slot antenna which realizes dual frequency dual-sense circular polarization is proposed. A printed spiral slot is fed using a T-shaped microstrip feedline. The results show that axial-ratio bandwidths of 4.5% and 3.5 % are obtained for right-hand circular polarization and left-hand circular polarization, respectively. A detailed parametric study and description of circular polarization mechanism are presented.
Keywords :
antenna feeds; electromagnetic wave polarisation; microstrip antennas; slot antennas; T-shaped microstrip feedline; dual frequency dual-sense circular polarization; dual-frequency dual-circularly-polarized printed slot antenna; left-hand circular polarization; right-hand circular polarization; Microstrip; Microstrip antennas; Polarization; Resonant frequency; Slot antennas; Spirals;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2011 Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4577-1014-8
Electronic_ISBN :
978-1-4577-1015-5
DOI :
10.1109/LAPC.2011.6114029
