There are two categories of WiFi modules divided into network cards and APs for analysis.
Among them, the WiFi module communication interface, communication channel, and integrated functions of the network card can be roughly divided into eight series (USB interface single-frequency single-channel WiFi module, USB interface single-channel multifunctional high-performance WiFi module, USB interface dual-channel single/dual-band WiFi module, USB interface dual-channel dual-band high performance all-in-one WiFi module, SDIO interface single-band single-channel WiFi module, SDIO interface single-channel multi-functional high-performance WiFi module, SDIO interface dual-channel single / dual-band high performance multi-function WiFi module, PCIe Interface wireless network card WiFi module); AP WiFi module can be divided into embedded AP module (core board mode, only leads the interface pin) and AP motherboard (that is, without the shell and antenna products)
This classification is more numerous, for the selection of application estimates will be more confused, and then for the network card WiFi module functionally divided into the following (single-band WiFi module, dual-band WiFi module, WiFi Bluetooth two-in-one module) to analyze three parts, It will look more intuitive!
WiFi module type 1: single WiFi function Single-band WiFi module Single-band operation is under the ISM 2.4 band. Currently, there is no single ISM5G (except the high-power version can only choose single-frequency amplification);
Frequency range: ISM2.4G (2.400GHz to 2.497GHz);
Meet the IEEE 802.11b/g/n standards;
Others only need to consider the chip's solution, the module's package size, the number of communication channels (1T1R, 2T2R), communication interface (USB, SDIO, PCIe), power supply voltage, antenna processing methods!
1.1: USB interface 1T1R single-channel programs are: RTL8188 series, MT7601UN, AR9271, RT3070; size package to 12.9 * 12.2mm/LGA-6 and 27 * 15mm/LGA-6;
1.2: USB interface 2T2R dual-channel solutions are: RTL8192EU, RTL8192CU, AR1021G, MT7603UN; size package is mainly 27*15mm/LGA-6;
2.1: SDIO Interface The 1T1R single-channel solutions mainly include: RTL8189 series, AR6302, 88W8801, BCM43362, ESP8089, SV6030P, SP6051P; size package 12*12mm/LGA-44 and 13.5*13/LGA-14 and 14*12.5/LGA13 Mainly
2.2: SDIO interface 2T2R dual-channel solutions are: RTL8192ES; size package to 15*13mm/LGA-50;
3.0: The schemes of the PCIe interface are: RTL8188EE (1T1R), RTL8192EE/AR9287/AR9283 (2T2R), and the size of the package is 30*26.7/PCIe-52.
Through the following list, it will be clearer!
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