Japan en DNT (NTN) developed by the rubber and ceramic powder composed of "rubber-like material antenna," the high-frequency dielectric antenna material. Add to the base material of rubber, by adjusting the high-dielectric ceramic powder with the ratio of free to be able to set the relative dielectric constant, and soft texture, can be affixed to the surface to use. In addition, because the compression method used for heating film forming, so can easily be made of ceramic and resin molding materials is not easy for large-sized thin film forming. In addition, also for cutting and grinding, and other processing.
At present, the use of high-frequency wireless LAN and RFID (radio frequency identification), and so the market is rapidly expanding field of the antenna used by the consumption of materials are also on the rise. Antenna existing materials, although there are ceramic materials, but can not arbitrarily set the relative dielectric constant, so there is a low degree of freedom of antenna design shortcomings. In addition, the relative dielectric constant is able to set up the antenna material, although there are resin-type material (ceramic powder and composite materials), but the electrode is very difficult to form, but also the structure of complex molds, so there is no lower production The cost disadvantages. Moreover, these hard texture of the existing materials, a lack of flexibility, so there are still vulnerable to the impact of the shortcomings.
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