| 摘要 |
A transmission line 10 comprises first and second conductive members 24, 26 separated by a dielectric member 28 with multiple elements connecting to the said conductive members 24, 26. The first and second conductors 24, 26 may be made of rigid conductive material. The dielectric member 28 may include polytetrafluoroethylene PTFE fluoropolymer arranged to prevent water ingress between the said conductive members 24, 26. The conductive members 24, 26 and dielectric member 28 may be secured together by non-conductive fasteners 30 or by metal fasteners 30 with non-conductive bushings. The transmission line 10 may include perpendicular elongate insulating members 34 and connection tabs with a plurality of holes 36, on either side of the said transmission line, through which antenna elements may be woven and connected. The transmission line 10 may further include a mounting arrangement 42 to secure it to a support structure. The laminated, balanced transmission line 10 may be easy to manufacture with a stable and reliable performance, involving no balun elements, which may be used in a Hex-beam antenna arrangement.
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