Patent ID: 8438719

Claim:
A method of manufacturing an antenna, the method comprising: forming and preparing a radiator for the antenna; mounting the radiator inside a dam molding part including an upper dam molding part and a lower dam molding part, a first end of the radiator passing through and positioned outside the dam molding part; injecting a molding material into the dam molding part through an inlet provided at one side of the dam molding part, the molding material including a composite material with a controlled diameter and content; hardening the injected molding material; and separating the hardened molding material covering the radiator from the dam molding part, wherein in the injecting the molding material into the dam molding part, the molding material is a material having a relative permittivity ranging from approximately 20 to approximately 60, and the composite material includes one of BaO—TiO 2 , (Mg, Ca)TiO 3 , BaO—Nd 2 O 3 —TiO 2 , Ba(Mg, Ta)O 3 , Ba(Zn, Ta)O 3 and (Zr, Sn)TiO 4 , which is mixed at a content ranging from approximately 40 wt% to approximately 90 wt% with respect to a polymer material selected from the group consisting of epoxy, acetyl, polystyrol, polyester and polyethylene.