Abstract: A transmission apparatus applied to an antenna, includes a first rotation member, a cross shaft, a second rotation member. The first end of the first rotation member is connected to a first linkage structure, and the second end of the first rotation member includes a pair of first pivot elements. The cross shaft includes a pair of first pivot mating elements and a pair of second pivot mating elements. Each first pivot mating element and a neighboring second pivot mating element are formed at an angle. The pair of first pivot mating elements rotatably cooperate with the pair of first pivot elements. The first end of the second rotation member is connected to the second linkage structure. The second end of the second rotation member includes a pair of second pivot elements. The pair of second pivot elements rotatably cooperate with the pair of second pivot mating elements.

Abstract: A cable fixing device includes an upper body to contact a cable, a lower body to travel through an opening of a plate-shaped structure along an engagement direction, and a middle body positioned between the upper body and the lower body along the engagement direction, the middle body to contact a side wall of the opening of the plate-shaped structure, where a height H1 of the sidewall of the opening of the plate-shape structure along the engagement position is smaller than a height H2 of the middle body along the engagement direction, and where a height difference ?H between H2 and H1 decreases as the cable travels through the upper body along the engagement direction.

Abstract: A cable fixing device includes an upper body to contact a cable, a lower body to travel through an opening of a plate-shaped structure along an engagement direction, and a middle body positioned between the upper body and the lower body along the engagement direction, the middle body to contact a side wall of the opening of the plate-shaped structure, where a height H1 of the sidewall of the opening of the plate-shape structure along the engagement position is smaller than a height H2 of the middle body along the engagement direction, and where a height difference ?H between H2 and H1 decreases as the cable travels through the upper body along the engagement direction.

Abstract: A cable fixing device includes: a first arm including a first arm section for holding a cable and a second arm section for fixing the cable to a plate-shaped structure to which the cable fixing device is attached; and a second arm including a third arm section for holding the cable and a fourth arm section for fixing the cable to the plate-shaped structure. The first arm section and the third arm section are configured to cooperatively fix the cable, and the first arm section is connected to the third arm section only through the second arm section and the fourth arm section.

Abstract: A cable fixing device includes: a first arm including a first arm section for holding a cable and a second arm section for fixing the cable to a plate shaped structure to which the cable fixing device is attached; and a second arm including a third arm section for holding the cable and a fourth arm section for fixing the cable to the plate-shaped structure. The first arm section and the third arm section are configured to cooperatively fix the cable, and the first arm section is connected to the third arm section only through the second arm section and the fourth arm section.