The HCHP-18265 from RLC Electronics is a Directional Coupler with Frequency 18 to 26.5 GHz, Coupling 20 to 30 dB, Coupling Variation ±1 dB, Directivity 13 dB, Average Power 80 W. Tags: Module with Connectors. More details for HCHP-18265 can be seen below.