GENERAL DESCRIPTION

NEC LD7215W is a 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 3 kW over the range of 5.85 to 6.65 GHz.

It provides a high power gain of 42 dB at a rated output power.

Furthermore, this is of rugged and reliable design offering long-life service.

FEATURES

● High Power Gain

The power gain is typically 42 dB minimum at 3 kW level.

● Simple Cooling System

The tube is forced-air-cooled, so that the cooling systems are simplified.

● PPM Focusing

The tube is PPM (Periodic Permanent Magnet) -focused, eliminating entirely the 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.