4G Wi-Fi6 built-in antenna solution

　　The 4G Wi-Fi 6 internal antenna solution combines the technical advantages of the fourth generation of mobile communications (4G LTE) and the sixth generation of wireless LAN (Wi-Fi 6), aiming to provide users with an efficient, stable and fast wireless connection experience. This type of solution is particularly suitable for application scenarios that require both wide area network (WAN) connections and high-performance local area network (LAN) services, such as smart homes, remote offices, industrial Internet of Things (IIoT), etc. The following is a detailed analysis of the 4G Wi-Fi 6 internal antenna solution.

　　Technical Features

　　Advanced Wi-Fi 6 feature support

　　MU-MIMO (Multi-User Multiple Input Multiple Output): Allows a router or access point to send data streams to multiple clients at the same time, improving spectrum efficiency. For example, the XAP-6210-E wireless access point of Sundray Technology supports 2x2 MU-MIMO7

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　　OFDMA (Orthogonal Frequency Division Multiple Access): Allows multiple users to share different parts of the same channel, reducing waiting time and improving efficiency. This feature is particularly prominent in the Wi-Fi 6 standard, allowing the network to better serve a large number of concurrent users.

　　TWT (Target Wake Time): Reduces the RF working time, optimizes network resources, and helps reduce the power consumption of terminal devices. This is especially important for IoT devices that rely on battery power.

　　Higher modulation method: From 256-QAM in Wi-Fi 5 to 1024-QAM, each symbol can carry more bits of information, which significantly improves throughput.

　　Dual-band support: 4G Wi-Fi 6 built-in antennas usually support both 2.4GHz and 5GHz bands to ensure better coverage and higher data transmission rates. Some products may also support the 6GHz band, which is part of Wi-Fi 6E14

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　　Integrated 4G LTE module

　　The wide area network connectivity provided by the 4G LTE module complements the local area network advantages of Wi-Fi 6, ensuring that a good Internet connection can be maintained even when the Wi-Fi signal is poor. For example, the 4G/5G router launched by Zbtlink supports Wi-Fi 6 and is equipped with a SIM card slot, providing Wi-Fi transmission rates of up to 1800Mbps and 4*Gigabit Ethernet ports19

　　. This design is very suitable for application scenarios without fixed broadband access or requiring high mobility.

　　Application scenarios

　　Consumer electronics

　　For home users, routers supporting 4G Wi-Fi 6 can provide high-speed and stable Internet services without fixed broadband access. For example, some portable 4G Wi-Fi 6 routers not only provide strong Wi-Fi performance, but also integrate 4G LTE modules, allowing users to enjoy high-speed network connections anywhere18

　　. In addition, these devices are usually easy to set up and suitable for ordinary consumers.

　　Industrial and commercial environments

　　In industrial or commercial environments, 4G Wi-Fi 6 built-in antennas are more widely used. They can be used to build reliable wireless infrastructure to support mission-critical applications such as automated production lines and remote monitoring systems. For example, some CPEs not only have built-in 2T2R WiFi antennas to support up to 160MHz bandwidth and AX3000-level wireless specifications, but also have up to 120+ simultaneous wireless terminal access capabilities, providing industrial users with flexible and stable connection options2

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　　Internet of Things (IoT) devices

　　With the development of the Internet of Things, more and more smart devices need to be online continuously. 4G Wi-Fi 6 internal antennas can use 4G LTE as a backup link while maintaining local high-speed networks, ensuring that services are not interrupted even when networks are switched. For example, although the 5G external antenna BGS-910 provided by Fibocom is designed mainly for 5G, its support for 4G is also suitable for enterprises that want to upgrade to 5G in the future but still need to maintain the stability of existing 4G connections1

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　　Design considerations

　　When designing 4G Wi-Fi 6 internal antennas, manufacturers need to consider the following key factors:

　　Compactness and integration: Given the increasing requirements for space utilization in modern devices, internal antennas must be able to provide excellent performance in a limited space. For example, the AN.5G.INT.100.IP4 antenna launched by Maxwell uses FPC material and is installed by adhesive, which is very suitable for embedding in compact devices1

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　　Material selection: The right shell material is crucial to protect the antenna from the external environment. Especially for devices working in harsh environments, such as CPE used outdoors, the antenna should be able to withstand factors such as temperature changes and humidity.

　　Power management: Ensure that the antenna and its related components can operate normally within the expected operating voltage range, especially for devices that rely on PoE power supply, such as NAP-5820-X, which supports both local power supply and PoE remote power supply to adapt to different on-site power supply conditions19

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　　Optimize signal reception: Use advanced beamforming technology and smart antenna arrays to enhance signal reception quality, and maintain good communication performance even in weak signals or interference. For example, Huawei AirEngine Wi-Fi 6 series products incorporate smart antenna technology derived from 5G, built-in dual-band 16 smart antennas and original beamforming algorithms, ensuring that the overall performance exceeds 10Gbps and the coverage radius is significantly improved3