| 摘要 |
<p>Dual polarization in an antenna structure that results from a number of radiating elements arranged in a loop configuration. The antenna structure is excited by a single coaxial feedline (118, 504, 614, 704, 804) in an interior portion of the antenna structure. The antenna structure may include a ground plane (890) that enables a directional radiation pattern (870, 872, 874, 876, 878). The antenna structure may also be operational without a ground plane to enable an omnidirectional radiation pattern (400). The antenna structure may be configured in a number of loop configurations (100, 500, 600, 700, 800) electrically connected to each other by a number of microstrip loops extending in a horizontal and vertical planar direction.</p> |
