ST900R1 RFID антенны

Radio Frequency Identification (RFID) antennas from Invengo offer the ability to operate indoors or outdoors, or the ability to withstand extreme harsh environment. The Invengo ST900-R1 Antenna is an essential operational component in reader-tag communications meeting the needs of any RFID system requirements. The Voltage Standing Wave Ratio (VSWR) is a measure of impedance mismatch between the transmission line and its load. The higher the VSWR, the greater the mismatch. The ST900-R1’s minimum VSWR, i.e., that which corresponds to a perfect impedance match, is unity. The ST900-R1 is linear-polarized that focuses the radio energy from the reader in a narrow beam. This increases the read distance possible and provides greater penetration through dense materials. Physical Characteristics Dimensions:610 × 156 × 50mm(24 × 6 × 2in) Weight:3.8kg(8.4lbs) Radome material:Glass Reinforced Plastic Enclosure rating:IPX4 Lightning protection:Grounding Connector:N Type Radome bearing stress:>500Kg (1,102lbs) Radome Colour:White Performance Specifications Operating Frequency:902-928 MHz Polarization:Linear Voltage standing wave ratio(VSWR)<1.2 Beam width:27°(E) / 90°(H) Gain:9.6 dBi Power handling capability:50W Impendence:50 Ohm Front-Back Ratio:-18dBi Water proof:Yes Acid proof:Yes Mildew-proof:Yes