Ключевые слова: 4g, 5g, 6g, antenna, background, blue, broadcasting, business, cell, cellular, communication, connection, data, digital, equipment, frequency, global, gsm, industry, internet, metal, mobile, network, phone, radio, signal, sky, smart, station, structure, system, technology, telecom, telecommunication, telephone, television, tower, transmission, transmitter, wave, wireless,