Model 180120 is a stripline directional coupler with frequency range of 1 to 18 GHz. Ideal for military electronic-warfare (EW) systems, commercial wireless system applications, and broadband testing, the 20-dB coupler features coupling flatness within 1 dB with frequency sensitivity within 0.3 dB from 1 to 12.4 GHz, and 0.4 dB from 1 to 18 GHz. Directivity is better than 16 dB across the full frequency range. The maximum VSWR at any port is 1.35:1, while the insertion loss is less than 0.95 dB (including coupled power) across the full frequency range. The model 180120 directional coupler measures 3.5 x 0.53 x 0.73 in. and is rated for 20 W maximum average input power and 3 kW peak input power. It is designed for operating temperatures from -54 to +85C. It can be supplied with a variety of different coaxial connectors, including SMA female, SMA male, and Type N female connectors.