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LD7246A データシート

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NEC LD7246A is PPM-focused traveling wave tube designed for use as final amplifier in the earth-to-satellite communications transmitter.
This is capable of delivering an output power of 130 W over the range of 13.75 to 14.5 GHz.
It provides a high power gain of 53 dB at 123 W output power.
Furthermore, this is of rugged and reliable design offering long-life services.

○ Light weight, Compact and Efficient
    The tube has dual-depressed collectors and is designed to operate at high efficiency across wide power output range. It features state-of the art techniques to optimize size and efficiency.
○ High Power Gain
    The power gain is typically 53 dB at 123 W level.
○ Simple Cooling System
    The tube is conduction-cooled, so that the cooling system is greatly simplified.
○ PPM Focusing
    The tube is PPM (Periodic Permanent Magnet) -focused, eliminating entirely focusing power supplies and interlock circuits.
○ Rugged Construction
    The tube 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.
○ Microdischarge Free
    The tube is carefully designed to be free from microdischarge in the electron gun for long term operation, therefore it is suitable for digital communication service.


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