With rapid development of mobile networks in recent years, 5G has gradually entered into an era of large scale commercial, including smart cities, automatic pilot, automatic factory, remote surgery, etc. These applications are making 5G more diversified in the future. Compared with 4G, 5G’s network rate is nearly 10 times higher. Qualcomm X65 platform has reached 10 Gbit / s, with a low delay of less than 1 ms, and supports high-density and high-capacity connections. Besides SUB 6G conventional spectrum, the millimeter wave technology is significant in future 5G. Its frequency range is 20GHz-300GHz. Compared with the frequency band below 6GHz, millimeter wave has the unique advantages of larger bandwidth, low air interface delay and flexible air interface configuration, which can meet the requirements of future wireless communication on system capacity, transmission rate and differentiated applications. Due to the promotion of massive MIMO (large-scale array antenna technology) antenna in the 4G + era, antenna system technologies such as large-scale array antenna and integrated active antenna (millimeter wave antenna) have begun to be applied on a large scale in the 5G era.

█ Development History of MEIGCEE Antenna

Greater challenges have been put on traditional spectrum and millimeter wave spectrum due to the further application of 5G and expansion of FR2. The problem of isolation and high-frequency loss between antennas in multi antenna layout is becoming more serious, which leads to more challenges on the design of antennas and higher requirements for the development of antennas products. In recent years, MEIGCEE has made great efforts in the field of antennas and achieved outstanding results. It has gradually transformed from traditional omni-directional antenna and omni-directional + directional antenna to omni-directional + array smart antenna.

The first generation 5G antenna adopts the traditional omni-directional antenna, which can provide omni-directional coverage, but the coverage is limited.

The second generation 5G antenna adopts the omni-directional + directional scheme, which can not only meet the omni-directional coverage, but also increase the coverage and wall penetration effect in specific directions by 50%.

The third generation innovatively designed the array smart antenna, which not only increased the coverage of the previous generation products by 50%, but also increased the wall penetration effect by 30%. It has the function of intelligently changing the network performance according to the customer's application scenarios, so that the products are truly intelligent.

█ MEIGCEE Array Antenna

Millimeter wave technology is a very important technology in 5G, with a frequency range from 20GHz to 300GHz. Compared with the frequency band below 6GHz, millimeter wave has the advantages of larger bandwidth, low air interface delay and flexible air interface configuration, which can meet the needs of future wireless communication for system capacity, transmission rate and differentiated applications. For millimeter wave antennas, with the improvement of new materials, new technologies and new processes, the technical problems in the millimeter wave band have been quickly overcome. For the millimeter wave antenna technology, compared with the traditional antenna, the millimeter wave active phased array antenna has the advantages of fast beam speed, controllable direction, real-time tracking, light weight and mass production, which makes the realization of massive MIMO millimeter wave technology possible.

MEIGCEE keeps pace with the market and has developed a series of omni-directional antennas, directional antennas and millimeter wave smart array antennas, which can meet the needs of users in various application scenarios.

█ Pursuit of MEIGCEE Antenna Performance

Due to the sharp growth in the number of 5G antennas, more than 15 antennas are required for small products, which is a great challenge for the layout of antennas. MEIGCEE has established a perfect antenna simulation system, which can independently complete the antenna simulation products from simple to complex ones.

▲Overall coverage roundness optimization effect

The antenna technology of products in the frequency band below 5g sub-6ghz has been relatively mature. We have adopted a variety of schemes, such as antenna location layout, integrated antenna coverage out of roundness, directional antenna, etc., so that the antenna index of the whole machine is increased by about 20%, and the roundness coverage and isolation of the whole machine are greatly improved. The previous problems such as insufficient coverage and signal dead angle are completely solved, so that the product has a good user experience.

For very high frequency band millimeter wave, it spreads in space in the form of direct wave, with narrow beam and good directivity. However, millimeter wave is seriously affected by atmospheric absorption and rainfall fading, resulting in short communication distance. Antenna performance is particularly important for millimeter wave products. Through the self-built millimeter wave simulation system, we optimized the performance of the whole machine in terms of shell thickness and heat dissipation support, which improved the millimeter wave antenna performance of the whole machine by 5%.

█ The Future Millimeter Wave Antenna

According to researches, the performance of millimeter wave products in the current market is generally low. MEIGCEE will consider using passive coupling technology to improve the performance of millimeter wave antennas and optimize the EIRP and directivity of the whole machine products. This scheme is expected to increase the transmission distance by 15%-30%, which will provide millimeter wave customers with the ultimate use experience.

█ MEIGCEE 5G FWA Intelligent Terminal Products Accelerate 5G Commercialization

Applying the constructed simulation system, MEIGCEE has developed a series of solutions for IDU/ODU intelligent terminal products, with the isolation of -20dB, the maximum gain of indoor products can be 11dBi or above, and the maximum gain of outdoor products can be 8dBi or above. It is optimized according to user needs, which greatly improves the experience of products in actual use and has achieved a good market reputation.

“Antenna technology capability is the core support for the successful commercial use of 5G products. It is also an important branch of MEIGCEE’s R&D capability construction. MEIGCEE has set up a professional technical team in the fields of antenna pre design, antenna performance simulation, new antenna innovation and so on, which can provide customers with complete services including MIMO antenna isolation simulation, omni-directional antenna pattern optimization, directional antenna array design, millimeter wave stacking simulation and EIRP enhancement design The whole solution greatly shortens the time to market of customers' products, thereby accelerating the commercialization process of 5G industry. "

Antenna technology is the core technology of 5G. In the future, MEIGCEE will continue to increase investment in new products and technologies, focus on customer needs, constantly explore and improve 5G product antenna performance, provide users with the best product performance and best user experience, and help 5G commercialize in thousands of industries.