- GNI MICROWAVE CO LTD
- RF Component, Filter, Duplexer, Combiner, Multiplexer, Splitter, Coupler, LNA, Arrester, Attenuator, RF Connector, Front-End Unit, TMA, Divider, Tower Mounted Amplifer, Low Noise Amplifier,RF passive components.
- Address:388-2 Youngmoonri, Pogokeup, Cheoingu
- Asb Inc.
- LNA Surface Mountable Modules,RF MMIC Amplifiers,PLL Surface Mountable Modules,5.8 GHz DSRC RF Module,Pico-Cell Repeater,Ku-band Converter Module,RFID Reader RF Module & System,2.4 GHz RF Transceiver Module.
- Address:Venture Town 4,, KT Human Resource Development Center, Goejeong-dong ,Seo-gu
- JTECH CORPORATION
- PLL,VCO,Ceramic filter,Cavity filter,LC filter,Saw filter,LNA Module,RF Switch,Wireless Phone/Radio & System.
- Address:70-20 Myunmok6-dong
- Kortcom
- RF amplifier,High power amplfiler,CDMA amplifer,signal booster,GSM amplifier,HPA,RF Switch,LNA.
- Address:3F I-MAX Bldg, 196-37, Anyang-dong, Manan-gu,
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