PMI Model PLNA-30-10M20-292FF is an Ultra-low Noise Amplifier with working frequency range of 10 MHz to 20 GHz that offers up to +28 dB minimum gain @ 20 GHz with a typical gain flatness of ±2.5 dB typical and Noise figure of 3 dB @ 0.5 GHz, 2.5 dB @ 18 GHz, and 3.3 @ 20 GHz.   The amplifier's housing size is 0.53" x 0.70" x 0.26" with 2.92mm connectors that can be used as a surface mount or connectorized component.  https://www.pmi-rf.com/product-details/plna-30-10m20-292ff