| 摘要 |
<p>An electrical transmission unit line is provided comprising a porous dielectric layer (2) having positioned on one side thereof a pair of narrow, parallel elongate electrical conductors (such as 1a1, 1a2) and on the other side thereof, opposite the pair of conductors and extending transversely across both wires of the pair and parallel thereto, a wide ground conductor (such as 1a3). An electrical transmission line having a plurality of such unit lines is also provided. The porous dielectric is preferably porous, expanded polytetrafluoroethylene. The transmission lines are covered with an electrically insulating material (3), preferably a nonporous plastic.</p> |
