Repeater antennas play a vital role in mobile communication networks, By properly deploying repeaters and their antenna systems, they can effectively increase network coverage, improve call quality and data transmission rates, and reduce communication blind spots and dropped calls, rate and improve user satisfaction, The repeater antenna is an important part of the repeater system and undertakes the key task of relay transmission and optimization of wireless communication signals.
With the rapid development of 5G communication technology, its Massive MIMO antenna array plays a vital role in the construction of smart cities. Smart cities realize the intelligence of urban management and services through the following ways
Radio frequency identification technology is a contactless automatic identification technology that uses the transmission characteristics of radio frequency signals and spatial coupling (inductive or electromagnetic coupling) or radar reflection to achieve automatic identification of the identification object.