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L-3 Communications Electron Devices (L-3 EDD) is developing a high power Multi-beam IOT (MBIOT) for the European Spallation Source (ESS). Extensive simulation work has been completed and, where possible, results were validated against experiment using a scaled single-beam prototype. The MBIOT design has been finalized; fabrication of the tube is in progress, and configuration of a factory test bay...
L-3 Electron Devices Division (EDD) has developed a compact CW E-band microwave power module (MPM) to cover the 81 to 86 GHz band for communications applications. The power amplifier in the MPM is a periodic permanent magnet focused serpentine waveguide TWT, capable of over 200 W and 50% efficiency. In combination with a predistortion linearizer from LTI, the MPM will provide over 50 W linear power,...
L-3 EDD has developed a W-Band TWT with 100 W RF power over 4 GHz of bandwidth around 94 GHz suitable for MPM integration. The TWT employs an aperture grid modulated electron gun with mod-anode current control, a serpentine waveguide interaction circuit, and a single-stage depressed collector. Two TWTs have been built and tested to over 100 W pulsed output power. The first unit has been operated at...
This paper describes RF performance on a Ka/Q-band mini-TWT. An output power of greater than 80 W has been demonstrated in the Ka and Q communication bands.
L-3 EDD has developed a pulsed mode W-Band microwave power module (MPM) providing 100W RF power over 92 to 96 GHz. The MPM includes a serpentine waveguide PPM-focused TWT and a modular electronic power conditioner (EPC). A breadboard power supply was previously built and successfully tested with a W-Band TWT. The final power conditioner design is completing development for packaging with a TWT as...
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