Ключевые слова: 3d, 4g, 5g, abstract, antenna, astronomy, background, blue, broadcast, broadcasting, building, cell, cellular, city, communication, connect, connection, data, design, digital, dish, equipment, frequency, global, globe, icon, industry, information, internet, mast, mobile, network, phone, radar, receiver, satellite, service, signal, sky, smartphone, station, symbol, system, technology, telecom, telecommunication, telephone, tower, transmission, wireless,