Design and construction 52 Radio frequency integrated circuits 52 Wireless communication systems 12 Very high speed integrated circuits 9 Radio 7 Transmitter-receivers 7 Equipment and supplies 6 Prevention 5 Radio circuits 5 Headphones 4 Metal oxide semiconductors, Complementary 4 Cellular telephones 3 Computer-aided design 3 Electric discharges 3 Electrostatics 3 Microwave circuits 3 Microwave integrated circuits 3 Multichip modules (Microelectronics) 3 Protection 3 Semiconductors 3 Static eliminators 3 Data transmission systems 2 Substrate noise 2 Cognitive radio networks 1 Integrated circuits 1