WIDEBAND CIRCULAR POLARIZED TURNSTILE ANTENNA

摘要

PURPOSE: A broadband circular polarization turnstile antenna is provided to be optimally applied to a satellite control communication system by maintaining a high axial ratio on the overall frequency band. CONSTITUTION: A phase difference power divider(1) comprises a power divider(12), first and second feeding vias(13,14) and a phase transition line(15). The power divider divides the signal transmitted through a coaxial cable to two signals. The first and second feeding vias supply two signals divided by the power divider to an antenna unit. The phase transition line gives the phase difference of 90 degrees to the first and second feeding vias. The antenna unit radiates a phase difference branch signal outputted from the phase difference power divider.