▎ 摘　　要

NOVELTY - The method comprises manufacturing water-dispersible oxidation graphene nanoparticle solution with a conductive ink of an inkjet printer, reforming a chemical property of a formed support surface, forming an oxidation graphene thin film ink on the supporter injecting the water-dispersible oxidation graphene nanoparticle solution into the printer head, manufacturing an electrode for a broadband dipole antenna using a reducing agent in the supporter in which the oxidation graphene thin film is formed, and measuring performance of the antenna connected to an antenna analyzer. USE - The method is useful for forming a graphene sheet pattern applied in a broadband dipole antenna electrode (claimed). ADVANTAGE - The method is capable of easily, economically and rapidly forming the graphene sheet pattern into a desired size and shape with low surface resistance, avoiding the need of unneccessary additive and thermal treatment, and easily controlling a surface resistance value of the broadband dipole antenna electrode. DETAILED DESCRIPTION - The method comprises manufacturing water-dispersible oxidation graphene nanoparticle solution with a conductive ink of an inkjet printer after dispersing oxidation graphite into water using an ultrasonic generator, reforming a chemical property of a formed support surface, forming an oxidation graphene thin film ink on the supporter injecting the water-dispersible oxidation graphene nanoparticle solution into the printer head, manufacturing an electrode for a broadband dipole antenna using a reducing agent in the supporter in which the oxidation graphene thin film is formed, and measuring performance of the antenna connected to an antenna analyzer. An additive quantity of the oxidation graphene nano particle is 1-0.05 pts. wt. in an aqueous solution (100 pts. wt.). A jitter time of the water-dispersible oxidation graphene nanoparticle solution is 0.5-3 hours. The reforming step is characterized by oxygen and nitrogen plasma process. An oxygen plasma amount is 10-30 standard cubic centimeters per minute. An oxygen plasma processing time is 5-50 seconds. A reduction reaction is carried out at a temperature of 80-150 degrees C and a time of greater than or equal to 1 hour. An additive quantity of the reducing agent is 1-4% of the water-dispersible oxidation graphene nanoparticle solution. A surface resistance value of the graphene sheet for the broadband dipole antenna electrode is less than 100 ohm.