100 MHz to 17 GHz Dual-Gate Variable-Gain Amplifier

A simple analytical approach to wide-band amplification using commercially available dual-gate FET's has enabled an ultra-wide-band flat-gain amplifier to be built in the 100-MHz to 17-GHz bandwidth with a VSWR less than 3.5- and 15-dB gain control. A description is given, including first experimental results.