In the broadband amplifier feed circuit, the high frequency is affected by the parasitic capacitance parameters, and the performance drops sharply, so the feed needs to use BiasTee. BiasTee consists of ultra-broadband, near-ideal, high-frequency inductors and capacitors without resonance points. DC blocking capacitor: block DC to prevent DC voltage from leaking to subsequent circuits or test instruments; High-frequency inductors: isolate AC information and prevent high-frequency signals from leaking to the power supply system. Application range A) Broadband Amplifier Some broadband amplifiers do not have a DC blocking capacitor inside, and the output terminal needs to be powered, so a biaser is required. Some amplifiers have built-in blocking capacitors, eliminating the need for an additional bias. B) Optical fiber communication, driver The driving current required by the diode is injected through the DC terminal of the bias; Communication data is injected through the RF side Colour:silver Material:Metal Package Contents: 3 x RF blocker 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.