RD Microwave's model C2-A95 coupler provides excellent performance from 1 to 10 GHz. The patented taperline design exhibits flat coupling performance over the full band with extended performance down to 300 MHz. The unique tapered coaxial airline is capable of handling average power up to 500 Watts, with less than 0.2 dB of mainline insertion loss. Perfect for simultaneously measuring forward and reflected signals.