Amplifying arrangements including a klystron having a power tran

Details Amplifying arrangements including a klystron having a power tran Amplifying arrangements including a klystron having a power tran

1986-06-27

1988-03-22

Laroche, Eugene R.

Amplifiers

With electron beam tube amplifying device

Having electrode coupled to cavity resonator

H03F 356

Patent

active

047331925

ABSTRACT:
Klystrons are inherently non-linear and have an amplification characteristic which is frequency dependent on both signal amplitude and beam current. This may be compensated for by applying suitable correcting signals to a beam controlling electrode of the klystron thereby changing its electron beam current over the whole excursion of a modulating signal. A klystron arrangement in accordance with the invention is particularly suitable for use in a television transmitter, enabling full time modulation to be carried out with a significant improvement in the operating efficiency of the klystron.

REFERENCES:
patent: 4591799 (1986-05-01), Faillon et al.
patent: 4670789 (1987-06-01), Plume
Tupper, G. I. F., "Klystron Efficiency Improvements in UHF Vision Transmitters", Digest No. 1984/22, IEEE.

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