Title :
A novel type of broadband circularly polarized antenna
Author :
Lijun Pan ; RongLin Li
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China
Abstract :
A new type of broadband circularly polarized (CP) antenna is proposed. The new CP antenna consists of two folded off center-fed dipoles. The operating principle of this type of CP antenna is different from those of conventional CP antennas. The 90° time-phase difference required for circular polarization is obtained by the off-center feed of a half-wave dipole. This type of CP antenna features a simple planar configuration. It is shown that the new CP antenna achieves an overlapped bandwidth of 46% (1.7-2.73 GHz) for axial ratio <;3 dB and return loss >15 dB. The broadband CP antenna has a gain of 8.5 dBi on average.
Keywords :
antenna feeds; broadband antennas; dipole antennas; planar antennas; CP antenna; bandwidth 1.7 GHz to 2.73 GHz; broadband circularly polarized antenna; folded off center-fed dipoles; half-wave dipole; planar configuration; Antenna measurements; Bandwidth; Broadband antennas; Broadband communication; Dipole antennas; Microstrip antennas; Polarization;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904541
