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參數(shù)資料
| 型號(hào)： | LD7272 |
| 廠商： | NEC Corp. |
| 英文描述： | 6 GHz, 400 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
| 中文描述： | 6千兆赫，400瓦連續(xù)波，傳導(dǎo)冷卻，大功率增益 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 56K |
| 代理商： | LD7272 |
DATA S HEET
HIGH POWER TRAVELING WAVE TUBE
FOR COMMUNICATIONS
LD7272 SERIES
Document No. ET0476EJ 1V0DS00 (1st edition)
Date Published September 1999 M
Printed in J apan
6 GHz, 400 W CW, CONDUCTION COOLING, HIGH POWER GAIN
The information in this document is subject to change without notice.
1999
For safe use of microwave tubes, refer to NEC document “Safety instructions to all personnel
handling electron tubes” (ET0048EJ
V
UM00)
GENERAL DESCRIPTION
The NEC LD7272 series of PPM focused traveling wave tubes are designed for final amplifier in the earth-to-
satellite communication's transmitter.
These are capable of delivering an output power of 400 W over the range of 5.85 to 6.45 GHZ and an output
power of 400 W over the range of 5.85 to 7.1 GHZ with a power gain of more than 49 dB at any power level.
Furthermore, these are rugged and reliable design offering long life services.
FEATURES
Lightweight, Compact and Efficient
The tube has dual-depressed collectors and designed to operate at high efficiency across the power output
range. It features state-of-the-art techniques to optimize size and efficiency.
Low Distortion
Distortion is a very important factor in multiplex digital signals transmission. NEC has developed techniques
for the correction of non-linear distortion and phase generated in a TWT. As a result, the TWT has an opti-
mum performance across a broad power range and is ideally suited for multi-carrier transmission systems.
Simple Cooling System
The tube is conduction cooled, so that the cooling system is simplified.
Rugged Construction
The power gain 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.
Micro-discharge 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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