DatasheetsPDF.com

LD7235

NEC
Part Number LD7235
Manufacturer NEC
Description HIGH POWER TRAVELING WAVE TUBE
Published Apr 25, 2005
Detailed Description DATA S H E E T HIGH POWER TRAVELING WAVE TUBE FOR COMMUNICATIONS LD7235 SERIES 30 GHz, 150 W CW, CONDUCTION COOLING, H...
Datasheet PDF File LD7235 PDF File

LD7235
LD7235

Overview
DATA S H E E T HIGH POWER TRAVELING WAVE TUBE FOR COMMUNICATIONS LD7235 SERIES 30 GHz, 150 W CW, CONDUCTION COOLING, HIGH POWER GAIN 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.
For safe use of microwave tubes, refer to NEC document “Safety instructions to all personnel handling electron tubes” (ET0048EJ∗V∗UM00) The information in this document is subject to change without notice.
Document No.
ET0215EJ3V0DS00 (3rd edition) Date Published August 1998 M Printed in Japan © 1996 LD7235 SERIES GENERAL CHARACTERISTICS ELECTRICAL Frequency ……………………………………………… 26.
5 to 28.
6 GHz 27.
5 to 30.
0 GHz 30.
0 to 31.
3 GHz Output Power ……………………………...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)