| 摘要 |
An antenna support for a communications tower has three or more vertical steel legs which are joined along their lengths by nonmetallic lattice members. The lattice members include horizontal braces and diagonal nonmetallic wires. At least one digital or analog antenna is mounted to one or more legs of the antenna support. Alternatively, each leg may function as an antenna and contain a number of wave guides. The legs are cylindrical and slots are milled in each leg for enhancing the performance of the wave guides. The total number of slots and their spacing may vary as a function of the frequency and pattern direction of the wave guides.
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