[Amps] Ribbon Beam Amplifiers

[jeff millar]

I met with Chiping about a year ago to discuss this technology...It's 
still very early in the game.
The key requirements for application to cellular networks include

    * Greater than 13 dB peak to average ratio (100W avg, 2 KW peak output)
    * Intermod distortion products more than 60 dB down

If memory serves, the tubes and their RF cavity form an integral unit.

jeff, wa1hco

Mark Marsden wrote:

> 
>An interesting press cutting appeared on the tea-point notice board here
>at work last week. It's about a new vacuum tube device called "Ribbon
>Beam Amplifier (RBA)" developed by MIT for 3G base station PAs, check
>out  http://web.mit.edu/newsoffice/2005/wireless.html
>
>73 Mark G4AXX
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