Dove tail device in an antenna

摘要

A dove tail device for adjusting tilting angle of an antenna by rotating an arm member using a motion member which moves linearly is disclosed. The dove tail device in an antenna includes a guide and a motion member configured to move on the guide. Here, the motion member is combined with a rotation arm of a phase shifter, the rotation arm rotates according as the motion member moves on the guide, and an arm member of the phase shifter rotates in response to rotation of the rotation arm.

主权项

1. A dove tail device in an antenna comprising:
a force delivering member configured to enable rotating and fixed to a reflector; and a motion member combined with the force delivering member, the motion member including:
a first sub-motion member configured to move on the force delivering member, wherein a first hole is formed on the first sub-motion member, anda second sub-motion member combined with the first sub-motion member; wherein a first thread is formed on an outer surface of the force delivering member, a second thread is formed on an inner surface of the first sub-motion member corresponding to the first hole, the first sub-motion member moves on the force delivering member in case that the force delivering member rotates, the motion member is combined with a rotation arm of a phase shifter, the rotation arm rotates according as the motion member moves on the force delivering member, and an arm member of the phase shifter rotates in response to rotation of the rotation arm.