Circularly Polarized Log Periodic Dipole Antennas

摘要

This Modified Self-complementary LPDA [1] has asecond array of dipoles so arranged that each dipole of the secondarray has a quarter-wavelength phase difference from that of thecorresponding dipole of the standard LPDA array for the givenradiation field. The cross-element LPDA does not need a broadband90-degree hybrid junction to produce circular polarization.