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參數(shù)資料
| 型號： | LD79A02K |
| 廠商： | NEC Corp. |
| 英文描述： | 30 GHz, 20 W CW, LIGHT WEIGHT, COMPACT, EFFICIENT |
| 中文描述： | 30千兆赫，20 W連續(xù)，重量輕，緊湊，高效 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 49K |
| 代理商： | LD79A02K |
DATA S HEET
Document No. ET0361EJ 1V1DS00
Date Published September 1998 M
Printed in J apan
30 GHz, 20 W CW, LIGHT WEIGHT, COMPACT, EFFICIENT
MICROWAVE POWER MODULE
FOR COMMUNICATIONS
LD79A02K
The information in this document is subject to change without notice.
1998
GENERAL DESCRIPTION
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.
FEATURES
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 the
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.
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