"The P1dB P1CP-SAF-0204G50W-20 Directional SMA Coupler has a 20 dB coupled port and operates from 2 GHz to 4 GHz. The directional coupler can handle 50 Watts of average power with a directivity of 22 dB. The RF coupler has a VSWR of 1.15:1 for both the input and output ports and has an attached SMA attenuator on the reverse port.
The 50 Ohm 20 dB coupler, part number P1CP-SAF-0204G50W-20, is part of P1dB's line of octave band couplers and broadband couplers. It has a maximum insertion loss of 0.2 dB with an minimal amplitude imbalance of 0.75 dB. The P1CP-SAF-0204G50W-20 has an aluminum housing design and Connectorized SMA female ports."