Circular polarized compound loop antenna

摘要

Embodiments provide single-sided and multi-layered circular polarized, self-contained, compound loop antennas (circular polarized CPL). Embodiments of the CPL antennas produce circular polarized signals by using two electric field radiators physically oriented orthogonal to each other, and by ensuring that the two electric field radiators are positioned such that an electrical delay between the two electric field radiators results in the two electric field radiators emitting their respective electric fields out of phase. Ensuring the proper electrical delay between the two electric field radiators also maintains high efficiency of the antenna and it improves the axial ratio of the antenna.

主权项

1. A single-sided, non-linear, polarized, self-contained compound loop antenna, comprising:
a magnetic loop located on a plane and configured to generate a magnetic field; a first electric field radiator located on the plane and configured to emit at a first frequency a first electric field orthogonal to the magnetic field, the first electric field radiator coupled to the magnetic loop and having a first orientation; and a second electric field radiator located on the plane and configured to emit a second electric field at the first frequency, the second electric field being orthogonal to the magnetic field and orthogonal to the first electric field, the second electric field radiator coupled to the magnetic loop and having a second orientation orthogonal to the first orientation.