RF design, Antenna arrays design, Flat antenna panels for 1.4GHZ 2.4GHZ UNII-1 UNII-2 5.8GHZ 11GHZ 13GHZ 15GHZ,  Design  UP/DOWN  converters from L-band  S-band C-band and  KU-band, PCB design, Electromagnetic simulations  of a 2.5D and 3D structures

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