A 12 GHz, 150 W traveling wave tube for broadcasting satellites
Abstract
Development of 12 GHz, 150 W class traveling wave tube for broadcasting satellites is described. It operates in the frequency range of 11.7 to 12.2 GHz. An output power of 166 W, saturated gain of 41 dB and overall efficiency of 50 percent have been achieved. For efficiency enhancement, the gold-plated and velocity-tapered helix, and radiation-cooled four-stage collector were employed. For reliability evaluation, the vibration test and thermal-vacuum test were performed and resistance to vibration and thermal vacuum conditions was successfully verified. On the thermal-vacuum test, thermal cycling of 50 cycles was carried out to simulate the in-space operation. Outlines of the design and test results are mentioned.
- Publication:
-
11th Communication Satellite Systems Conference
- Pub Date:
- 1986
- Bibcode:
- 1986coss.conf..525M
- Keywords:
-
- Broadcasting;
- Environmental Tests;
- Satellite Transmission;
- Superhigh Frequencies;
- Traveling Wave Tubes;
- Amplification;
- Electron Guns;
- Power Efficiency;
- Thermal Cycling Tests;
- Thermal Vacuum Tests;
- Vibration Tests;
- Electronics and Electrical Engineering