| 摘要 |
PURPOSE:To attain a product having a flat outer circumference as a whole by constituting the antenna with plural unit members being element components of the high gain whip antenna incorporating a phase converting element so as to be expanded and contracted in the telescopic way. CONSTITUTION:Members b, c,...n to be positioned at the middle and the lower end among the unit members a, b, c,...n being plural element components are formed each as a cylinder 1 made of a hard insulating material having a hollow hole 6. A radiating element section 2 is formed to the cylinder 1. A phase converting element section 3 is formed to the middle part of >=1 of the cylinder 1 of the unit members positioned at the middle. The radiating element section 2 is formed continuously above and under the element section 3 and an insulating coating 7 is applied to the outer face. Then, the unit member of the lower stage is extracted successively in the telescopic way by coupling a lower connecting metallic fixture 5 of an upper stage unit member to an upper connecting metallic fixture 4 of the lower stage unit member. |
