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參數(shù)資料
| 型號(hào)： | LD79U12K |
| 廠商： | NEC Corp. |
| 英文描述： | 14 GHz, 123 W CW, LIGHT WEIGHT, COMPACT, EFFICIENT |
| 中文描述： | 14千兆赫，123 W連續(xù)，重量輕，緊湊，高效 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 125K |
| 代理商： | LD79U12K |
DATA S HEET
Document No. ET0224EJ 2V0DS00
Date Published September 1998 M
Printed in J apan
14 GHz, 123 W CW, LIGHT WEIGHT, COMPACT, EFFICIENT
The information in this document is subject to change without notice.
1996
TRAVELING WAVE TUBE AMPLIFIER
FOR GROUND TERMINALS
LD79U12K
For safe use of microwave tubes, refer to NEC document “Safety instructions to all personnel
handling electron tubes” (ET0048EJ
V
UM00)
GENERAL DESCRIPTION
NEC TWTA (Traveling Wave Tube Amplifier) LD79U12K delivers an output power of 123 W over the range of
13.75 to 14.5 GHz with a gain of 50 dB.
The Traveling Wave Tube (TWT : LD7246A) in the LD79U12K 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 ter-
restrial microwave links.
The very small and light weight Electric Power Conditioners (EPC) designed with sophisticated and experienced
circuit technology ensures higher reliability, reduced maintenance costs and improved technical perform-
ance.
The LD79U12K is most suitable for a power amplifier in digital communication systems.
FEATURES
Light weight, Compact, and Efficient
The TWT 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 TWTA 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 50,000 hours or more, which in actual usage.
Ideal for Digital Systems
A mini-arcing in the electron gun have been eliminated in the TWT used in the TWTA.
Wide range of primary voltage
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