CIJ Corporation was founded in March, 2000 by core members spun out of relevant section of ETRI (Electronics and Telecommunications Research Institute). Based on accumulated cutting-edge technology at ETRI, CIJ, Inc. has developed and produced core RF components and modules for mobile telecommunication system, aiming to create RF World. Now next generation mobile telecommunication technology like Mobile WiMax (WiBro in Korea), etc. coming, demand for new system and ensuing need for ultra high-tech components emerge in the world market. CIJ, Inc. is further developing and producing the components by sharpening core know-how. With a strategy of 1S 3H(Ultra Small, Harmonic-free, High Power, High Frequency), CIJ, Inc. takes global-level competitiveness, and offers state of the art quality products, meeting the requirements of customers in domestic and abroad in time.