LD7272

DATA S H E E T HIGH POWER TRAVELING WAVE TUBE FOR COMMUNICATIONS LD7272 SERIES 6 GHz, 400 W CW, CONDUCTION COOLING, HIGH POWER GAIN GENERAL DESCRIPTION The NEC LD7272 series of PPM focused traveling wave tubes are designed for final amplifier in the earth-tosatellite communication's transmitter. These are capable of delivering an output power of 400 W over the range of 5.85 to 6.45 GHZ and an output power of 400 W over the range of 5.85 to 7.1 GHZ with a power gain of more than 49 dB at any power level. Furthermore, these are rugged and reliable design offering long life services. FEATURES ™ Lightweight, Compact and Efficient The tube has dual-depressed collectors and designed to operate at high efficiency across the power output range. It features state-of-the-art techniques to optimize size and efficiency. ™ Low Distortion Distortion is a very important factor in multiplex digital signals transmission. NEC has developed techniques for the correction of non-linear distortion and phase generated in a TWT. As a result, the TWT has an optimum performance across a broad power range and is ideally suited for multi-carrier transmission systems. ™ Simple Cooling System The tube is conduction cooled, so that the cooling system is simplified. ™ Rugged Construction The power gain is designed to be rugged, therefore it is suitable for transportable systems. ™ Long Life and High Stability The tube employs an advanced impregnated cathode with a low operating temperature for long life....