The NEC LD7213 and LD7213L are PPM-focused traveling wave-tubes designed for use as final amplifiers in the earth-to-satellite communications transmitter. These are capable of delivering an output power of 300 W over the range of 14.0 to 14.5 GHz and 13.75 to 14.5 GHz. They provide a high power gain of 55 dB at 300 W output, and flat gain variation of 1.5 dB.
™ High Power Gain The power gain is typically 58 dB at small signal level and 55 dB at 300 W level. ™ Simple Cooling System The tubes are conduction-cooled, so that the cooling systems are greatly simplified. ™ PPM (Periodic Permanent Magnet) 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 advanced impregnated cathodes with a low operating temper.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | LD7213L |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
2 | LD7215 |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
3 | LD7215C |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
4 | LD7215D |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
5 | LD7215W |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
6 | LD7217 |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
7 | LD7202 |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
8 | LD720DUQ-SCA1 |
LG |
WUXGA TFT LCD | |
9 | LD7235 |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
10 | LD7237 |
NEC |
HIGH POWER TRAVELING WAVE TUBE | |
11 | LD7241 |
Leadtrend |
5-Channel DC-DC Converter | |
12 | LD7242 |
Leadtrend |
Highly-Integrated 6-Channel DC/DC Power Management IC |