Item Type: Charms UWB-1 is a unipolar ultra-wideband omnidirectional antenna. The antenna is mainly used for UWB positioning and communication equipment. The antenna coverage frequency is 3.1GHz to 9GHz, and the standing wave is typically 1.5 or less. The performance is excellent and the volume is small. High efficiency and good consistency. At present, UWB-1 no longer uses gold-plated PCB technology, and the price is lowered by 35%. The connector still uses gold-plated high quality connectors. Parameter index Antenna impedance: 50 ohms Frequency range: 3.1GHz-9GHz Power capacity: 5w Return loss: 10dB Gain: 3.5dBi Standing wave ratio: 1.5 (3.1GHz-10GHz less than 2) Connector type: SMA-K (female, male threaded bore) colour:green Material:Metal + pc size:Antenna size: 30mm * 22mm (without connector) Package Contents: 1* omnidirectional antenna Only the above package content, other products are not included. Note: Light 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.