Broadband amplifier:Some broadband amplifiers do not have a DC blocking capacitor inside and require power supply at the output end, requiring a biasing device.Some amplifiers integrate capacitors internally, so there is no need for additional biases. Fiber optic communication, laser driven:The driving current required for the laser diode is injected through the DC end of the biasing device;Communication data is injected through the RF end. Product principle:The broadband amplifier feeding circuit is affected by parasitic capacitance parameters at high frequencies, resulting in a decline in performance. Therefore, the feeding needs to use BiasTee.BiasTee consists of ultra wideband, near perfect, high-frequency inductors and capacitors without resonant points. DC isolation capacitor: DC isolation to prevent DC voltage leakage to subsequent circuits or testing instruments;High frequency inductance: isolates communication information and prevents high-frequency signals from leaking into the power supply system. Usage frequency: 10MHZ-6GHz Loss: 0.5db@6ghz 0.9db@10ghz Voltage withstand: DC 50V Current: 0.4A Colour:Silver Material:Aluminum alloy Package Contents: 1x RF DC Block 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.