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What is the future antenna technology of 2G to 5G?
Source:Original | Author:Calio Huang of C&T RF Antennas Inc | Publish time: 2019-07-02 | 499 Views | Share:

Over the past two decades, we have witnessed the shift in mobile communications from 1G to 4G LTE. During this period, the key technologies of communication are changing, and the amount of information processed has multiplied. The antenna is an indispensable component to achieve this leapfrog.
What is the future antenna technology of 2G to 5G?

According to the industry definition, an antenna is a transducer that transforms a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space), or vice versa, that is, transmitting or receiving electromagnetic waves. Popularly speaking, whether it is a base station or a mobile terminal, the antenna acts as a middleware for transmitting signals and receiving signals.

Now, the next-generation communication technology, 5G, has entered the end of the standard-setting phase, and major operators are actively deploying 5G devices. Undoubtedly, 5G will bring a new experience to users, it has a transmission rate ten times faster than 4G, and puts new requirements on the antenna system. In 5G communication, the key to achieving high speed is millimeter wave and beamforming technology, but the traditional antenna obviously cannot meet this demand.

Circuit characteristics and radiation characteristics are important indicators of base station antennas, such as gain, lobe width, front-to-back ratio, standing wave ratio, isolation, third-order intermodulation, and so on. As the antenna age increases and the intermittent high power input, the RF path temperature rises rapidly, accelerating the aging of the material, causing the attenuation of its radiation characteristics to affect the entire base station system.

What kind of antenna does 5G communication need? This is a problem that engineering developers need to think about.

A new round of technology and industrial transformation, represented by information technology, is gradually gestating and upgrading. With the proliferation of video traffic, the growth of user equipment and the popularity of new applications, there is an urgent need for the rapid maturity and application of the fifth-generation mobile communication system (5G), including mobile communications, Wi-Fi, high-speed wireless data transmission, without exception. The need for faster transfer rates, lower transfer latency, and higher reliability. In order to meet the high data rate requirements of mobile communications, one needs to introduce new technologies to improve spectrum efficiency and energy utilization efficiency, and the second is to expand new spectrum resources.