The ZDDC10-K5R44W+ from Mini Circuits is a Space Qualified Coupler with an operating frequency range of 0.5-40 GHz. This dual-directional coupler has a coupling of 1 dB and a coupling flatness of +/- 1.0-1.4 dB. It has a mainline loss of 1.6-5.0 dB and a directivity of 11-30 dB. The coupler has a return loss of 25-33 dB (In & Thru) and 24-33 dB (coupling). It has a power handling capacity of up to 16 W and requires a DC current supply of 0.56 A. This wideband coupler has a mass of 195 g and is ideal for 5G, mobile, fixed satellite, and lab applications.