Our custom high-performance frequency multiplier modules use state-of-the-art MMICs, discrete devices, and filters to achieve the desired multiplication ratio, power output, and spurious performance. We design custom narrowband and wideband multipliers up to 67 GHz and with power output up to +17 dBM. Multiplication ratios of X2, X3, and X4 are available depending upon frequency range and power output. The use of high-performance filters minimizes sub-harmonically related products. Frequency amplifiers are commonly used as frequency extenders in signal analysis applications.