NEC LD7249 series of PPM-focused traveling wave tube are designed for use as final amplifiers in the earth-tosatellite 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. Fu.
™ 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 i.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | LD7241 |
Leadtrend |
5-Channel DC-DC Converter | |
2 | LD7242 |
Leadtrend |
Highly-Integrated 6-Channel DC/DC Power Management IC | |
3 | LD7246A |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
4 | LD7202 |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
5 | LD720DUQ-SCA1 |
LG |
WUXGA TFT LCD | |
6 | LD7213 |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
7 | LD7213L |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
8 | LD7215 |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
9 | LD7215C |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
10 | LD7215D |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
11 | LD7215W |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
12 | LD7217 |
NEC |
HIGH POWER TRAVELING WAVE TUBE |