This is an improved monopole ultra-wideband antenna, which is mainly used for ultra-wideband positioning and communication. The antenna coverage frequency is 2.4GHz ---- 10.5GHz, and the typical value of standing wave is below 2.5. The antenna has the characteristics of small size and high efficiency Connector form: SMA female (outer screw and inner hole) Maximum power: less than 10W (40dBm) Polarization method: vertical linear polarization Input impedance: 50 (ohm) Dimensions: 50x50mm (without connectors) Mechanical weight: 20g Colour: green Material: PCB Package Contents: 2 x Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.