CSIR-CEERI has developed an indigenous microwave power module version of helix TWT under ISRO-SAC sponsored project. Realisation of this device has been a challenging task due to its compact size and dimensions. The TWT has been entirely designed, developed and packaged at CSIR-CEERI. The tube has met all the specifications and the tube along with technology document have been handed over to Dr. Tapan Mishra, Director, ISRO-SAC, Ahmadabad on 7.1.2016.
Specifications:
- Frequency:10.9-11.7 GHz
- Output power:140 W (CW)
- Gain:25 dB
- Efficiency:>55%
- AM/PM factor:4º/dB
- Third order inter-Harmonic/spurios:-18dBc/-70dBc
- Noise figure:30dB
- Phase shift:<48º
- Weight:1 kg
