Broadband high efficiency traveling wave tube amplifier system

Amplifiers – With traveling wave-type tube

Reexamination Certificate

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C455S013400, C455S126000, C455S127100, C455S127200

Reexamination Certificate

active

07358803

ABSTRACT:
A power control system for a satellite receiving radio-frequency signals includes a traveling wave tube amplifier system and corresponding traveling wave tube. An anode voltage of the traveling wave tube amplifier system is used to modulate or saturate the current of the electron beam of the traveling wave tube so that the output power of the traveling wave tube amplifier system, from the saturated electron beam, is proportional to a waveform envelope of the radio-frequency signals.

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patent: 2003/0102911 (2003-06-01), Raghavan et al.
patent: 1 478 088 (2004-11-01), None
Martijn Kuipers, et al., Pre-Distorted Amplifiers for OFDM In Wireless Indoor Multimedia Communications; Vehicular Technology Conference Proceedings; May 15, 2000; vol. 1 of 3.
Conf. 51, pp. 395-399; Aalborg, Denmark.
Patent Cooperation Treaty International Search Report.
Patent Cooperation Treaty Written Opinion of the International Searching Authority.

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