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Northrop Grumman Electronic Systems is developing vacuum-based power amplifiers operating at G-band with over 50W of output power and 3.5 GHz bandwidth. New power module configurations using a single electron beam, compact solenoidal magnet, and integrated power conditioner are being developed for system integration on airborne platforms.
A 0.670 THz Power Module based on a vacuum electronic (VE) power amplifier and a solid-state power amplifier (SSPA) has produced >100 mW, operating from 0.640–0.685 THz in a bread-board demonstration. The driver amplifier is a power-combined, MMIC SSPA module based on InP HEMT technology. The compact VE power amplifier is based on a DRIE-fabricated folded waveguide slow-wave circuit, together with...
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