Overview
Wi-Fi 4
Wi-Fi 4 introduced dual-band connectivity across 2.4GHz and 5GHz bands, combined with MIMO multi-antenna technology to provide a reliable foundation of throughput with enhanced coverage performance.
2.4GHz/5GHz
40MHz
4×4 SU-MIMO
OFDM
64-QAM
Product Characteristics
40MHz
Bandwidth
40MHz bandwidth can increase throughput
64-QAM
Modulation
Increases data density per transmission, enhancing overall transmission efficiency.
SU-MIMO
MIMO
Wi-Fi 4 introduced Single-User MIMO and OFDM technologies, using multi-antenna transmission and spatial diversity to improve signal stability, capacity, and resistance to multipath interference.
Stable Coverage and Reliable Throughput
Unlike later generations focused on higher speeds, Wi-Fi 4 was designed to address the fundamental needs of connectivity and reliability. With 40MHz bandwidth and 64-QAM modulation, it provides stable throughput for 1080P streaming, basic IP voice, and remote control applications. For use cases where connection reliability matters more than high bandwidth, Wi-Fi 4 remains a cost-effective solution.
MIMO Gain for Extended Wireless Coverage
Wi-Fi 4 brought MIMO multi-antenna technology to consumer devices at scale, significantly improving signal reception sensitivity. Combined with the natural penetration advantages of the 2.4GHz low-frequency band, Wi-Fi 4 maintains stable millisecond-level connectivity even through multiple reinforced concrete walls, providing reliable coverage for challenging environments such as homes, basements, and warehouses.
Dual-Band Connectivity for Versatile Applications
As a major milestone in wireless LAN evolution, Wi-Fi 4 fully supports the physical-layer capabilities of both 2.4GHz and 5GHz bands. From 2.4GHz connectivity optimized for long-range coverage and wall penetration to 5GHz-enabled devices requiring higher performance, Wi-Fi 4’s dual-band architecture provides reliable physical connectivity and ensures stable device communication.
Product Series
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