The ABT-18-SXX-YY from AtlanTecRF is a 3-Port bias tee that operates form 50 KHz to 18 GHz. It has an insertion loss of 1.5 dB, isolation of 30 dB and a VSWR of 1.80:1. It has a 0.75 A of current rating and 25 V DC rating. The bias tee has stainless steel passivated SMA connectors and measures 0.63 inches in length and 1.20 inches in height.