TBMA3_操作说明书手册

V1.1TBMA3TEK旦O×DIGITAL SOLUTIONS250MHz-1300 MHz Log Periodic Measurement Antenna1 IntroductionCISPR 16 divides the frequency range into several bands and defines specific antennas for each of thesebands.For the frequency range above 300 MHz up to 1 GHz,CISPR 16 specifies using logarithmic periodicantennas(log-periodic antennas )for radiated noise measurements.The TBMA3 is an affordable logarithmic periodic measurement antenna,targeting radiated noise EMC pre-compliance testing.The TBMA3 is characterized from 250 MHz to 1.3 GHz and has VSWR and antenna factor values typical forlog-periodic measurement antennas.2 Product overviewThe TBMA3 is an average sized log-periodic antenna,with its radiating elements and supporting booms madefrom powder coated aluminum alloy.It is equipped with a standard female N-connector and comes togetherwith an antenna bracket and a mounting adapter.A standard %"thread on the bottom of the mounting adaptermakes it easy to connect it to most standard tripods.The TBMDA3 is shipped in a robust carrying case,as pictured above.3 Technical specifications-Type:logarithmic periodicVoltage Standing Wave Ratio (VSWR):1.95:1over the entire frequency range;1.35:1 averageFrequency range:250 MHz-1300 MHz-idth:749mm(29.49")Nominal impedance:50Height (With the mounting adapter):170.23 mm(6.70")Connector:N type femaleHeight (Without the mounting adapter):79.5 mm(3.13)Maximum continuous input RF power:100W-Depth:863mm(33.98")Isotropic gain:6 dBi+1.5 dBWeight:1.78 kg (3.92 Ibs)Antenna factor:14.2...27.5 dB/m-Tripod Adapter Thread Size:4"1