3g UMTS Yagi Antenna, HSPDA Antenna, 1920 to 2170MHz, Gain 15DBI, 2.1GHz Application, 3G Wireless 3G UMTS/HSDPA Yagi antenna Item: D1900Y18A18 Frequency range: 1920 to 2170MHz Gain: 18dBi Elements: 18 V.S.W.R: ≤ 1.5 Polarization: vertical or horizontal Horizontal: -3dB beamwidth 36-degree Vertical: -3dB Beamwidth 22-degree Impedance: 50 Ohms Front-to-back ratio: ≥ 18dB Maximum input power: 50W Connector type: N-F Lightning protection: direct ground Dimension:710mm Weight: 1.5Kg Radiating element material: brass Operating temperature: -40 to +60 deg.C