| Popis: |
A 1-40-GHz hybrid amplifier with 10 dB minimum gain up to 40 GHz and using 0.3- mu m MESFETs is presented. Gain ripple is +or-1 dB in the 1-26.5-GHz range. The maximum noise figure is 7.5 dB in the 2-18-GHz range, and output power at 1-dB gain compression is 11 dB. The circuit includes a 1-40-GHz biasing system. Device S-parameters were measured in the 1-20-GHz band, and static measurements were used to derive an equivalent circuit for the FET, leading to very good agreement between simulations and measurements up to 40 GHz. > |
