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參數(shù)資料
| 型號(hào)： | LD7235 |
| 廠商： | NEC Corp. |
| 英文描述： | 30 GHz, 150 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
| 中文描述： | 30千兆赫，150瓦連續(xù)波，傳導(dǎo)冷卻，大功率增益 |
| 文件頁(yè)數(shù)： | 1/6頁(yè) |
| 文件大?。?/td> | 66K |
| 代理商： | LD7235 |
DATA S HEET
HIGH POWER TRAVELING WAVE TUBE
FOR COMMUNICATIONS
LD7235 SERIES
Document No. ET0215EJ 3V0DS00 (3rd edition)
Date Published August 1998 M
Printed in J apan
30 GHz, 150 W CW, CONDUCTION COOLING, HIGH POWER GAIN
The information in this document is subject to change without notice.
1996
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 LD7235 series of PPM-focused traveling wave tubes are designed for use as final amplifiers in the
earth-to-satellite communications transmitter, LMDS (Local Multipoint Distribution Service) and other advanced
communication systems.
Three models of the LD7235 series are capable of delivering an output power of 150 W over the range of
26.5 GHz to 31.1 GHz and provide a high power gain of 50 dB at 150 W output power. These are equipped with
dual-stage depressed collector for enhancing overall efficiency and a single collector.
Furthermore, they are of rugged and reliable design offering long-life service.
FEATURES
High Power Gain
The power gain is typically 50 dB at 150 W level.
Simple Cooling System
The tubes are conduction-cooled, so that the cooling systems are greatly simplified.
PPM Focusing
The tubes are PPM (Periodic Permanent Magnet) -focused, eliminating entirely the focusing power supplies
and interlock circuits.
Rugged Construction
The tubes are designed to be rugged, therefore they are suitable for transportable systems.
Long Life and High Stability
The tubes employ an advanced impregnated cathode with a low operating temperature for long life.
Microdischarge Free
The tubes are carefully designed to be free from microdischarge in the electron gun for long term operation,
therefore they are suitable for digital communication service.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LD7237 | DBS Band, 400 W CW, PPM FOCUSING, HIGH POWER GAIN |
| LD7246 | 14 GHz, 123 W CW, CONDUCTION COOLING, MINIMUM SIZE |
| LD7246A | 14 GHz, 123 W CW, CONDUCTION COOLING, MINIMUM SIZE |
| LD7249 | 14 GHz, 350 W/400 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
| LD7249U | 14 GHz, 350 W/400 W CW, CONDUCTION COOLING, HIGH POWER GAIN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LD7237 | 制造商:NEC 制造商全稱:NEC 功能描述:DBS Band, 400 W CW, PPM FOCUSING, HIGH POWER GAIN |
| 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 |
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