The practical application of the lens antenna of Guangzhou Sinan Technology Co., Ltd. (hereinafter referred to as "Guangzhou Sinan") in the 5G communication field focuses on three core innovation directions: solving the pain points of 5G and 5G-A network deployment, optimizing the adaptability of technical scenarios, and expanding the industrial application boundary.

 

 

Relying on the independently developed photonic crystal metamaterial technology, the antenna features light weight, high gain with electrically tunable phase shifter, multi-beam, high isolation and anti-interference, and high cross-polarization ratio. Combined with the patented design of three-dimensional photonic crystal, it has achieved technological breakthroughs in deployment mode, performance adaptation, scenario extension and other dimensions, and built an application system different from traditional 5G antennas.
Based on actual application cases, this paper systematically analyzes its application characteristics with both innovation and engineering implementability.

I.Operator 5G FWA Scenario: Innovate Wide-Area Coverage Deployment Mode to Solve Network Construction Difficulties in Remote Areas

In response to the network deployment needs of the 5G Fixed Wireless Access (FWA) scenario, Guangzhou Sinan's lens antenna breaks through the traditional deployment framework of "multiple antennas, small coverage". Relying on the technical advantages of high gain and multi-beam, it achieves the dual goals of cost reduction and efficiency improvement in 5G broadband coverage and smooth technological evolution. The relevant technical solutions have been verified in practical application in operator cooperation projects. 

 

 

1. Coverage Mode Innovation: Abandoning the technical path of dense deployment of traditional 5G FWA antennas, a combined solution of three types of lens antennas is adopted to build a flexible configuration system of 4, 6 and 8 beams. The signal coverage radius of a single communication tower can reach 29 kilometers, realizing the deployment effect of "fewer antennas, wider coverage". It greatly reduces the number of antenna deployments in remote areas and effectively solves the industry pain points such as high infrastructure costs and difficult deployment caused by the vast area and complex terrain in the western regions.

2. Technology Adaptation Innovation: It accurately supports 5G core mid-frequency bands such as 1.8GHz, 2.1GHz, 2.6GHz and 3.5GHz, and can smoothly support the technological evolution demand of 5G FWA gigabit-level broadband access, which is highly in line with the technological development trend of fixed wireless access under 5G SA (Standalone) networking.
The technical transition from traditional broadband to 5G FWA can be realized without large-scale transformation of existing communication towers, taking into account both network compatibility and technological foresight.

3. Cost Control Innovation: Compared with the traditional 5G FWA deployment scheme, this mode can reduce the infrastructure cost in remote areas by more than 60%.
Through the combination of large-scale deployment and wide-coverage technical characteristics, low-cost access to 5G broadband in rural and remote areas is realized, breaking the application limitation that 5G broadband only covers urban areas and promoting the inclusive construction of 5G networks.

 

II.Operator 5G Macro Base Station Scenario: Multi-dimensional Technological Innovation Adapts to Complex Terrain and Improves 5G Signal Transmission Efficiency

In view of the pain points of 5G macro base station deployment in different terrains such as urban areas and islands, Guangzhou Sinan's lens antenna achieves precise scenario adaptation of anti-interference, high capacity and dual-mode compatibility through technological innovation, breaking through the performance bottleneck of traditional 5G macro base station antennas. The relevant technological achievements have been verified in multi-scenario applications such as islands and urban areas.

1. Anti-interference Technology Innovation: Based on the patented photonic crystal metamaterial lens design, the precise multi-beam signal focusing technology effectively reduces the signal cross-interference between 5G macro base stations in urban areas, and simultaneously solves the problems of maritime 5G signal attenuation and clutter interference in island scenarios.
Compared with traditional array antennas, radio frequency interference is reduced by more than 40%, which significantly improves the operational stability and data throughput of 5G networks.

2. Product Adaptation Innovation: Core products such as 4STJ1-045R18Z and 16SNTJ4-018R20Z are optimally designed exclusively for 5G scenarios, adapting to the deployment needs of 5G macro base stations with 4-8 sectors, supporting key 5G frequency bands such as 1695-2690MHz and 3300-4200MHz, compatible with 4x4 MIMO and 8x8 MIMO technical standards, and enabling the dual-mode collaborative deployment of 4G LTE and 5G.
It helps operators complete the smooth network upgrade from LTE to 5G without replacing the main equipment of the original base stations, greatly reducing the upgrade and transformation costs of 5G macro base stations.

3. Terrain Adaptation Innovation: Aiming at the complex terrain characteristics of islands, mountainous areas and other regions, the beam angle design is optimized, and precise directional coverage of 5G signals can be realized without large-scale construction of new base station computer rooms.
In a certain island application case, it successfully solved the problem of maritime 5G signal transmission, provided communication support for the implementation of 5G applications in characteristic scenarios such as island cultural tourism and fishery, and broke through the technical limitation of poor terrain adaptability of traditional 5G macro base stations.

 

III.5G Scenario in Large Sports Venues: Innovate High-Density Coverage Deployment Scheme to Adapt to Communication Support Needs of Large-Scale Events

In view of the pain points such as high cost, difficult transformation and uneven coverage in the 5G network deployment of large sports venues, Guangzhou Sinan's lens antenna combines the characteristics of venue scenarios to achieve a multi-faceted balance of 5G communication support, venue architectural aesthetics and operational maintenance convenience. The relevant solutions have been large-scale implemented in many top sports venues of the National Games.

 

 

1. Deployment Mode Innovation: Abandoning the high-cost scheme of "dense deployment under seats" of the traditional venue 5G Distributed Antenna System (DAS), lightweight lens antennas are adopted, which can be directly integrated into the existing DAS system without large-scale transformation of the main structure of the venue.
In the applications of National Games stadiums, large-scale commercial performances and other scenarios, the deployment cycle is shortened by more than 50%; at the same time, some antennas adopt the concealed black coating process, realizing the coordinated balance of 5G communication performance and the overall aesthetics of the venue.

2. Capacity Adaptation Innovation: Relying on the core multi-beam technology, a single antenna can support simultaneous coverage of multiple carriers and multiple frequency bands, achieving the technical effect of "a single antenna carrying 10,000-level concurrent user access".
In a stadium case of the National Games, only 32 multi-beam lens antennas are deployed to realize the full coverage of 5G signals for 83,000 seats, effectively solving the problem of 5G traffic peak congestion during large-scale events. Compared with traditional antennas, the user carrying capacity is increased by more than 170%.

3.Frequency Band Adaptation Innovation: It takes an early layout of the construction of indoor C-band 5G coverage, focuses on supporting the deployment and implementation of the 5G core C-band, optimizes the coverage effect of signal weak areas such as the upper stands of the venue in a targeted manner, provides stable communication support for innovative applications such as 5G high-definition broadcast and AR viewing, and breaks through the technical limitation of traditional venue 5G which is mainly based on Sub-6G frequency band with insufficient coverage accuracy.

 

IV.5G Scenario in Large-Scale Outdoor Activities: Innovate Temporary Deployment Technology System to Adapt to Outdoor Emergency Communication Support Needs

In response to the 5G temporary communication support needs of outdoor activities such as music festivals and large-scale celebrations, Guangzhou Sinan's lens antenna builds a 5G temporary network technology system with rapid deployment, stable operation and low-cost adaptation around the characteristics of tight schedule, complex environment and changeable demands of the scenarios. The relevant solutions have been applied in Weihai Music Festival, National Day Ceremony, Strawberry Music Festival and other scenarios.

 

 

1. Deployment Efficiency Innovation: Relying on the lightweight technical advantage (the antenna weight is only 1/10 of that of traditional products), the whole process of installation, commissioning and disassembly can be completed quickly without large-scale infrastructure support, and the deployment cycle of 5G temporary network is shortened to 1-2 days, breaking through the industry limitations of long deployment cycle and high labor cost of traditional 5G temporary base stations.

2. Environment Adaptation Innovation: The anti-interference performance of the antenna is optimized, which can effectively cope with the complex electromagnetic environment of open outdoor sites and multi-equipment simultaneous operation, ensure the stable transmission of 5G signals and avoid signal interruption or freezing; at the same time, the product can adapt to harsh outdoor environments such as high temperature, wind and rain, and the operational reliability of the equipment is greatly improved.

3. Architecture Mode Innovation: In scenarios such as Strawberry Music Festival and outdoor events of the National Games, an innovative deployment architecture of "Pico/Micro Base Station + High-gain Lens Antenna Pilot + Effect Verification" is adopted, and lens antennas with a gain of 24dBi are deployed to achieve the communication support effect of "small base stations driving large-scale coverage", providing stable 5G connections for more than 12,000 on-site personnel.
It verifies the adaptability of the technology in complex outdoor scenarios and provides replicable and promotable implementation experience for the 5G temporary deployment of large-scale outdoor activities.

 

V.5G Special Expansion Scenarios: Technological Boundary Extension and Innovation, Layout Industrial Applications in 5G Emerging Fields

Guangzhou Sinan's lens antenna breaks through the application boundary of traditional ground communication coverage, extends its core technical advantages to emerging scenarios such as 5G high-altitude communication and upstream measurement of the industrial chain, seizes the first opportunity for the future development of the 5G industry, and the relevant pilot projects have achieved phased technological results.

1. High-Altitude Communication Innovation: In-depth technical cooperation has been carried out with key domestic airship projects to develop 5G high-altitude communication solutions. Relying on the technical advantages of multi-beam and high gain, it realizes the precise coverage and efficient transmission of 5G high-altitude signals, which can adapt to the needs of emerging industries such as 5G low-altitude economy and high-altitude emergency communication, breaks through the technical limitation that traditional 5G base stations can only realize ground coverage, and provides a new technical path for the full-domain coverage of 5G.
2. Industrial Chain Support Innovation: The core technology of lens antenna is extended to the field of 5G base station antenna measurement, and an oversized "fisheye lens" + compact space measurement solution (lens technology compact range test solution) is developed. It can accurately measure key technical parameters such as gain and radiation pattern of 5G base station antennas without large-scale professional measurement sites.Compared with traditional measurement antennas, the measurement efficiency and accuracy are improved by more than 40%, which provides core technical support for the R&D, production and quality inspection of 5G base station antennas and improves the upstream technical service capacity of the 5G industrial chain.

 

VI.Core Common Innovation: In-depth Integration of Technology and Demand, Restructuring the Application Logic of 5G Antennas

In addition to the special technological innovations for each scenario, the core common innovation of Guangzhou Sinan's lens antenna in 5G applications lies in building an application logic of "taking scenario pain points as the guide and precisely adapting technical advantages to actual demands", which is completely different from the "technology-oriented" R&D and application mode of traditional 5G antennas.
1. Power Consumption and Lightweight Innovation: Based on the photonic crystal metamaterial design, the antenna weight is only 1/10 of that of traditional 5G antennas, and the equipment power consumption is greatly reduced at the same time. It effectively solves the industry pain points of high energy consumption and high operation and maintenance costs of traditional 5G base stations, and is highly in line with the green and low-carbon deployment and development trend of 5G networks.
2. Multi-beam Design Innovation: Compared with traditional antennas adopting Butler Matrix plus phased array technology (needing about 100 radiation elements), Guangzhou Sinan's multi-beam lens antenna can realize multi-beam coverage with only a small number of radiation elements, and each beam supports electrical tuning of phase shifter. The feed network design is more concise, the equipment operation reliability is higher, and the isolation index of symmetric beams is better.
3. Large-scale Adaptation Innovation: All 5G-related application cases have realized the closed-loop development of "technical advantages → scenario adaptation → large-scale implementation", abandoning meaningless technology accumulation and breaking through the application limitations of a single scenario.Aiming at the core pain points of different scenarios such as 5G wide-area coverage, high-density support and professional measurement, the precise matching of core technologies is realized, and an innovative application system of "one core technology adapts to multiple application scenarios, and one application scenario optimizes multiple industry pain points" is built.

 

VII. Core Basic Technical Advantages: Consolidate the Foundation of Innovative Applications and Create Differentiated Core Competitiveness

The technological innovations and practical breakthroughs in the above scenarios are all based on the core basic technical advantages of Guangzhou Sinan's lens antenna. These advantages are the premise for its scenario innovation and also the core differentiated competitiveness compared with traditional 5G antennas.

1. High Reliability: Relying on the patented photonic crystal metamaterial structure and mature large-scale production process, the antenna has excellent operational stability in various 5G application scenarios, and can adapt to long-term working needs such as harsh outdoor environments (high temperature, wind and rain, high maritime humidity), high-density signal load and long-term continuous operation, greatly reducing the daily operation and maintenance costs of operators' 5G networks.

2. Strong Compatibility: It can be seamlessly adapted to the 5G network equipment and frequency band standards of mainstream global operators, not only supporting 5G core frequency bands such as 690-960MHz, 2.3GHz, 3.4GHz, 1695-2690MHz, 3.3-4.2GHz and 4.4-5.0GHz, but also fully compatible with 4G LTE network to realize the dual-mode collaborative deployment of "4G+5G".
Without replacing the original base station main equipment, communication towers and supporting systems, it can be directly integrated into the existing network architecture in the 5G macro base station upgrade cases in northwest, north China and other regions of China, helping operators realize the smooth transition from LTE to 5G and reduce network upgrade investment.

3. Easy Operation and Maintenance: Benefiting from the lightweight design and concise feed network, the installation, commissioning, maintenance and other operations of the antenna do not require complex professional equipment and a lot of labor input. Compared with traditional heavy 5G antennas, the operation and maintenance efficiency is improved by more than 60%.
Disassembly and maintenance can be completed quickly in large sports venues and outdoor temporary activity scenarios; in 5G FWA and macro base station scenarios in remote areas, there is no need to build complex maintenance platforms, which greatly reduces the labor and time costs of the operation and maintenance link.

4. High Spectrum Utilization Rate: With the precise multi-beam focusing design and polarized MIMO design, the efficient utilization of 5G spectrum resources is realized, and signal waste and spectrum interference are reduced; the original lens array phase shifting technology can perform precise and independent electrical tuning on each beam, effectively preventing beam leakage, reducing inter-beam interference and realizing precise directional coverage of signals.
Under the same spectrum conditions, compared with traditional 5G lens antennas, the network throughput is increased by 30%-40%, which can give full play to the value of 5G spectrum and is especially suitable for scenarios with tight 5G spectrum resources such as high-density urban areas and large venues.

5. Advantage of Adaptation to Large-scale Deployment: A rich product system is built, combined with the independently developed cableless base station antenna technology (green antenna technology/cableless technology, Guangzhou Sinan is the earliest enterprise in China to carry out R&D of this technology), which can not only improve the overall gain of lens antennas and reduce equipment energy consumption, but also accurately adapt to the deployment needs of different scenarios and scales such as 5G FWA, macro base stations, venues and outdoor, and can be flexibly adapted from national large-scale deployment to regional small-scale pilots.At the same time, large-scale production can further reduce product costs and provide cost-effective technical support for the large-scale rollout of operators' 5G networks.

6. Low Signal Loss: Due to the ultra-high gain and low insertion loss of the lens antenna, it has an extremely high link budget advantage in the process of signal transmission, which is particularly prominent in long-distance coverage and complex terrain coverage scenarios.

In a certain island test case, within the 59-kilometer coverage of a single communication tower, the signal loss is much lower than that of traditional antennas, ensuring the stability of 5G broadband speed for users in remote areas; in satellite communication pilots and 5G high-altitude communication tests, the low loss characteristic effectively guarantees the efficient transmission of 5G signals, laying a solid technical foundation for the full-domain coverage of 5G.

The application innovation of Guangzhou Sinan Technology Co., Ltd.'s lens antenna in the 5G communication field is essentially to solve the bottleneck of 5G network deployment through core technological breakthroughs, adapt to the diverse scenario demands through flexible deployment, and expand the industrial application dimension through the extension of technological boundaries.
All innovation points have been verified through the implementation of actual engineering cases, forming a significant differentiated competitiveness from traditional 5G antennas. It provides a new technical idea and implementation paradigm for the low-cost, wide-coverage and high-performance deployment of 5G networks, becoming a benchmark example of lens antenna application in the global 5G communication field, and also providing an important technical reference for the scenario-based application of 5G-A and the next-generation 6G mobile communication technology.

Guangzhou Sinan Technology Co., Ltd.