LD79A02K

· Light weight, Compact, and Efficient
The TWT built in the MPM has a dual-depressed collector and is designed to operate at high efficiency across the power output range.  The EPC features state-of-the-art techniques to optimize size and efficiency and he combination results in a unit significantly smaller and with less power consumption than a comparable solid state amplifier.
· Low Distortion
NEC has developed techniques for the correction of non-linear distortion of gain and phase generated in a TWT.  As a result, the MPM has optimum performance across a broad power range and is ideally suited for multi-carrier transmission systems.
· Long Life
The TWT is designed to have a lifetime of 80,000 hours or more, which is comparable to that of a solid state amplifier in actual usage.
· Ideal for Digital Systems
A mini-arcing in the electron gun have been eliminated in the TWT.

MPM stands for Microwave Power Module and is the solution introduced by NEC for a microwave power source with high efficiency and the most compact size.

The MPM consists of a miniaturized traveling wave tube (TWT) and an electronic power conditioner (EPC). All the potential interface problems are taken care of by NEC and the user simply connects the MPM to his RF output and plugs in the DC supply.

LD79A02K is a complete integrated unit and can deliver an output power of 20 W over the range of 27.5 to 30.0 GHz with a gain of 40 dB.

The TWT of RF section in the LD79A02K has been designed and developed upon the NEC's advanced technology and enormous experience on a number of TWTs used in satellite ground terminals and  terrestrial microwave links.

The very small and light weight EPC designed with sophisticated and experienced circuit technology ensures higher reliability, reduced maintenance costs and improved technical performance.

The LD79A02K is most suitable for a power amplifier in LMDS and Multimedia Satellite communication systems.