| 摘要 |
<p>A novel underground guided wave antenna system and method (20). The system comprises at least one substantially linear, electrically insulated radiating element (32) which is buried in the earth (42) so as to lie no more than approximately one skin depth below the earth's surface. The effective electrical length of each radiating element is equal to at least one-third of the wavelength, as measured in the earth, of the electromagnetic signals being propagated; and the effective electrical length of a radiating element may be made greater than its actual physical length, if desired, by providing three terminations (39) at the end of such radiating element.</p> |
