參數(shù)資料
型號: LD7237
廠商: NEC Corp.
英文描述: DBS Band, 400 W CW, PPM FOCUSING, HIGH POWER GAIN
中文描述: 星展帶,400瓦連續(xù),分之為重點,高功率增益
文件頁數(shù): 1/8頁
文件大?。?/td> 62K
代理商: LD7237
DATA S HEET
Document No. ET0159EJ 2V1DS00
Date Published August 1998 M
Printed in J apan
DBS Band, 400 W CW, PPM FOCUSING, HIGH POWER GAIN
The information in this document is subject to change without notice.
1996
HIGH POWER TRAVELING WAVE TUBE
FOR DBS GROUND TERMINALS
LD7237
GENERAL DESCRIPTION
NEC LD7237 is PPM-focused traveling wave tube designed for use as final amplifier in the earth-to-satellite
communications transmitter.
This is capable of delivering an output power of 400 W over the range of 17.3 to 18.1 GHz and provides a high
power gain of 53 dB at 400 W output power.
Furthermore, this is of rugged and reliable design offering long-life service.
LD7237 is fully compatible with TH3694B.
FEATURES
High Power Gain
The power gain is typically 53dB at 400 W level.
Simple Cooling System
The tube is forced-air-cooled, so that the cooling systems are 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 the 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.
For safe use of microwave tubes, refer to NEC document “Safety instructions to all personnel
handling electron tubes” (ET0048EJ
V
UM00)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LD7246 制造商:NEC 制造商全稱:NEC 功能描述:14 GHz, 123 W CW, CONDUCTION COOLING, MINIMUM SIZE
LD7246A 制造商:NEC 制造商全稱:NEC 功能描述:14 GHz, 123 W CW, CONDUCTION COOLING, MINIMUM SIZE
LD7249 制造商:NEC 制造商全稱:NEC 功能描述:14 GHz, 350 W/400 W CW, CONDUCTION COOLING, HIGH POWER GAIN
LD7249U 制造商:NEC 制造商全稱:NEC 功能描述:14 GHz, 350 W/400 W CW, CONDUCTION COOLING, HIGH POWER GAIN
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