Pulsed power-combined wideband TWT amplifiers

September 19, 2012 // By Jean-Pierre Joosting
At the 49th Annual AOC International Symposium and Convention in Phoenix, Arizona from September 23 – 26, 2012, dB Control will introduce a suite of four pulsed power-combined Traveling Wave Tube Amplifiers (TWTAs). The TWTAs use two wideband, periodic permanent magnet (PPM)-focused TWTs to amplify CW, AM, FM, or pulse-modulated signals.

Available for either local or remote operation, the devices are suitable for test and measurement, RFI/EMI/EMC testing, antenna pattern and radar cross-section measurements, electronic counter measures (ECM) and Electronic Warfare (EW) simulation. The four TWTs comprise:

dB-3901: 10 kW PW output, 6% duty cycle, 2-4 GHz frequency range;
dB-3902: 8 kW PW output, 6% duty cycle, 4-8 GHz frequency range;
dB-3903: 9 kW PW output, 8% duty cycle, 8-12 GHz frequency range;
dB-3904: 7 kW PW output, 6% duty cycle, 12-18 GHz frequency range.

“Protection from future threats is non-negotiable in the defense industry — and TWT technology continues to make this possible. This new suite of amplifiers proves that TWTAs remain an unparalleled and reliable option for rugged, high-power military applications. And with only one RF input and one RF output, they are extremely easy to operate,” said dB Control Vice President of Business Development Steve Walley.

Designed and manufactured in-house, the TWTAs employ a modular architecture and low-noise power supply topology. In addition, dB Control utilizes the proprietary transformer fabrication, encapsulation and high-voltage potting techniques it developed specifically for demanding military applications.