The Atheros AR2133 is a wireless radio chipset with specific features and capabilities. Here's how you can use the information you provided:

The AR2133 is a 3x3 MIMO Radio chipset, which means it has three integrated single-band 2.4 GHz radios. This allows it to operate on the 2.4 GHz frequency band and take advantage of Multiple Input, Multiple Output (MIMO) technology, which improves wireless performance through the use of multiple antennas.

One of the notable features of the AR2133 chipset is that it eliminates all IF (Intermediate Frequency) filters and most RF (Radio Frequency) filters. This is significant because it reduces the need for external components like voltage-controlled oscillators (VCOs) and surface acoustic wave (SAW) filters. Such elimination of external components can simplify the design of wireless devices and reduce costs.

Additionally, the AR2133 chipset supports 20 and 40 MHz channels. This means it can operate on both 20 MHz and 40 MHz wide channels, which can impact data rates and signal quality in a wireless network. A 40 MHz channel allows for higher data rates and can be advantageous in scenarios where a wide channel is available and interference is minimal.

This information provides an overview of the key features and capabilities of the Atheros AR2133 chipset, which can be beneficial for engineers and designers when developing wireless products or networks that require 2.4 GHz wireless communication with 3x3 MIMO support and the ability to handle different channel widths.