Model 1500110010, a new directional coupler, offers some of the widest frequency coverage on the market. It maintains flat 10 dB coupling across a wide 50 to 110 GHz bandwidth. The coupler offers superior coupling performance of 10 dB, +/-1.8 (with respect to output) and achieves frequency sensitivity (amplitude flatness) of typically +/-1.8 dB. It provides directivity of at least 7 dB, insertion loss of 5.5 dB (max.) across the full frequency range, including coupled power.