| Title: |
A 500-W Coupled-Cavity TWT for Ka-Band Communication. |
| Authors: |
Legarra, James R., Cusick, Jennifer, Begum, Rasheda, Kolda, Peter, Cascone, Michael |
| Source: |
IEEE Transactions on Electron Devices. May2005, Vol. 52 Issue 5, p665-668. 4p. |
| Subjects: |
POWER amplifiers, TELECOMMUNICATION satellites, BASEBAND, BROADBAND communication systems, TRAVELING-wave tubes, ELECTRONICS |
| Abstract: |
Worldwide demand for high-power amplifiers for digital satellite communication at Ka-band frequencies between 27 and 31 GHz is steadily increasing (2003). Communication and Power Industries (CPI) has developed a 500-W periodic permanent magnet focused coupled-cavity traveling wave tube (TWT) for conduction-cooled amplifier systems, which is being introduced into the commercial satellite communication market. The TWT is capable of greater than 500-MHz instantaneous bandwidth and is cathode voltage tunable from 28.3 to 30 GHz. The TWT may be operated saturated at the 500-W output power level or backed off from saturation in the linear mode. CPI's Satcom Division has integrated the TWT into a conduction-cooled transmitter box suitable for antenna hub-mount applications. The amplifier uses predistortion networks to provide a high degree of linear response when operated in output power back-off mode. [ABSTRACT FROM AUTHOR] |
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| Database: |
Military & Government Collection |
