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參數資料
| 型號： | LD7249U |
| 廠商： | NEC Corp. |
| 英文描述： | 14 GHz, 350 W/400 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
| 中文描述： | 14千兆赫，350 W/400 W連續(xù)，傳導冷卻，大功率增益 |
| 文件頁數： | 1/6頁 |
| 文件大?。?/td> | 73K |
| 代理商： | LD7249U |
GENERAL DESCRIPTION
NEC LD7249 series of PPM-focused traveling wave tube are designed for use as final amplifiers in the earth-to-
satellite communications transmitter.
Two models of the LD7249 series are capable of delivering an output power of 350 W and 400 W over the range
of 13.75 to 14.5 GHz and provide a high power gain of more than 47 dB at the rated output power level.
Furthermore, this is of rugged and reliable design offering long-life service.
FEATURES
High Power Gain
The power gain is typically 54 dB at the rated output power level.
Simple Cooling System
The tube is conduction-cooled so that the cooling system is greatly 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.
DATA S HEET
Document No. ET0221EJ 5V0DS00 (5th edition)
Date Published August 1999 M
Printed in J apan
14 GHz, 350 W/400 W CW, CONDUCTION COOLING, HIGH POWER GAIN
The information in this document is subject to change without notice.
1997
HIGH POWER TRAVELING WAVE TUBE
FOR GROUND TERMINALS
LD7249 SERIES
For safe use of microwave tubes, refer to NEC document “Safety instructions to all personnel
handling electron tubes” (ET0048EJ
V
UM00)
相關PDF資料 |
PDF描述 |
|---|---|
| LD7260 | 6 GHz, 2.25 kW CW, PPM FOCUSING, HIGH POWER GAIN |
| LD7261 | 20 GHz, 250 W CW, PPM FOCUSING, HIGH POWER GAIN |
| LD7262 | 6 GHz, 750 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
| LD7263 | 14 GHz, 750 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
| LD7267 | 30 GHz, 100 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LD7260 | 制造商:NEC 制造商全稱:NEC 功能描述:6 GHz, 2.25 kW CW, PPM FOCUSING, HIGH POWER GAIN |
| LD7261 | 制造商:NEC 制造商全稱:NEC 功能描述:20 GHz, 250 W CW, PPM FOCUSING, HIGH POWER GAIN |
| LD7262 | 制造商:NEC 制造商全稱:NEC 功能描述:6 GHz, 750 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
| LD7263 | 制造商:NEC 制造商全稱:NEC 功能描述:14 GHz, 750 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
| LD7267 | 制造商:NEC 制造商全稱:NEC 功能描述:30 GHz, 100 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
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