LD7263

DATA S H E E T HIGH POWER TRAVELING WAVE TUBE FOR COMMUNICATIONS LD7263 14 GHz, 750 W CW, CONDUCTION COOLING, HIGH POWER GAIN GENERAL DESCRIPTION The NEC LD7263 is a PPM-focused traveling wave tube designed for use as final amplifiers in the earth-tosatellite communications transmitter. This is capable of delivering an output power of 750 W over the range of 1 3.75 to 14.5 GHZ and provides a power gain of more than 47 dB at 750 W Ievel. Furthermore, this is of rugged and reliable design offering long-Iife service. 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. ™ Micro-discharge Free The tube is carefully designed to be free fr...