LD7202 Datasheet | NEC

DATA S H E E T HIGH POWER TRAVELING WAVE TUBE FOR GROUND TERMINALS LD7202 SERIES 14 GHz, 600 W CW, PPM FOCUSING, HIGH POWER GAIN GENERAL DESCRIPTION NEC LD7202 series of PPM-focused traveling wave tubes are designed for use as final amplifiers tube in the earth-to-satellite munications transmitter. These are capable of delivering an output power of 600W over the range of 12.75 to 14.5 GHz and provide a high power gain of 52 d B at 600 W output power. Furthermore, they are of rugged and reliable design offering long-life service. The LD7202 is fully patible with TH3591B. Features ™ High Power Gain The power gain is typically 52 d B at 600 W level. ™ Simple Cooling System The tubes are forced-air-cooled, so that the cooling systems are greatly simplified. ™ PPM Focusing All 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 use in digital munication 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. ET0141EJ2V1DS00 (2nd edition) Date Published August 1998 M Printed in Japan © 1989(1995) LD7202 SERIES GENERAL CHARACTERISTICS ELECTRICAL Frequency LD7202, LD7202A, LD7202B ............................................. 14.0 to 14.5 GHz LD7202L ............................................................................. 13.75 to 14.5 GHz LD7202W .......................................................................