이중 직교 원형편파 도파관 안테나.

We present a dual-orthogonal circularly polarized waveguide antenna for modeling real GNSS signals in a shielded chamber. The proposed antenna consists of a septum structure for a circular polarization radiation pattern and a coaxal-to-waveguide transition for broadband characteristics. The designed antenna has dual orthogonal characteristics and forms RHCP and LHCP radiation patterns through the two ports. The fabricated antenna had gain characteristics higher than 12 dBic, an axial ratio of less than 3 dB, and a return loss higher than 10 dB in the GNSS band. [ABSTRACT FROM AUTHOR]