The AN2401.0020 is a 2.4 GHz RF antenna made by RFsister. It is an electronic part designed for use in short-range wireless applications such as access points, wireless routers, wireless bridges, and wireless gateways. It is RoHS compliant, which means it meets the requirements of the Restriction of Hazardous Substances Directive and is made with minimal hazardous materials. This antenna has a gain of 7 dBi, an elevation range of 45 degrees, and a frequency range of 2400-2500 MHz. It also has a 50 ohm impedance and an N-type female connector.