The ZDDC30-K0144 from Mini Circuits is a Space Qualified Coupler with an operating frequency range of 1-40 GHz. This dual-directional coupler has a coupling of 30 dB and a coupling flatness of +/- 0.7-1 dB. It has a mainline loss of 0.2-1.6 dB and a directivity of 10-33 dB. The coupler has a return loss of 11.7-37 dB (In & Thru) and 11.7-34 dB (coupling). It has a power handling capacity of up to 20 W and requires a DC current supply of 0.63 A. This RoHS-compliant wideband coupler has a mass of 95 g with 2.92 mm female connector. It is ideal for 5G, mobile, fixed satellite and lab applications.