| 摘要 |
<p>A compact polarization agile antenna includes a dual-orthogonal loop structure which is excited by a single RF feed. The loop structure includes a pair of loops, each loop is connected to ground through a complex impedance via a solid state switch. Current flows in the loop when the switch is closed. The switches and impedances in each leg are independently controlled. Additionally, the relative phase of the current in each leg can be controlled over a narrow bandwidth via a complex impedance for narrowband circular polarized applications. Using this approach, orthogonal linear, slant, or left-hand and right-hand circular polarizations can be generated.</p> |
