Abstract: An antenna sheath includes a tubular member and a base unit. One end of the tubular member is formed with two lateral boards corresponding to each other, an opening is formed between the two lateral boards, each of the lateral boards is formed with a shaft hole, and the inner periphery of at least one of the two shaft holes is formed with at least one first convex tooth; the base unit is installed with a connector inserted in the opening and formed with two lateral surfaces corresponding to each other, the two lateral surfaces are respectively installed with a rotation shaft correspondingly pivoted in the shaft hole, the outer periphery of at least one of the two rotation shafts is formed with plural second convex teeth annularly arranged, and the first convex teeth is engaged between any two of the adjacent second convex teeth.

Abstract: This invention provides an improved antenna structure comprising a connecting unit having a connector, a lightning rod, and a signal transmission section. The two ends of the connector has the first and second connecting sections, with the signal transmission section extending out the first and second connecting sections; and a connecting unit connecting to the antenna unit, which contains at least an antenna board fixed to the first connecting section and the signal transmission section, and a set of housing installed at the outer section of the antenna board and connecting to the connector. Through this, the lightning rod, connecting unit, and antenna unit can be integrated together and the effectiveness of simple structure, ease to assemble, and lowered manufacturing cost can be achieved.

Abstract: A lightning arrestor apparatus is disclosed, which is comprised of a connecting piece, a first coaxial cable, a second coaxial cable and a grounding lead. Said connecting piece comprises a first connecting end and second connecting end on both sides of said connecting piece. Said first coaxial cable comprises the first terminal to connect said first connecting end for transmitting signal. Said second coaxial cable comprises the second terminal to connect said second connecting end for transmitting signal above-mentioned. Said grounding lead is installed under said connecting piece. The exteriors of said first terminal and said first connecting end have been further wrapped with a first protection coating. The exteriors of said second terminal and said second connecting end have been further wrapped with a second protection coating. Thereby the invention not only can reduce the transmission loss, but also can avoid inappropriate assembly and moisture intrusion.