Lin, Shiow-Hwa; Sverorup, Jr., Lawrence H.;

Compact millimeter wave source

A millimeter wave device. Pulses of electrons illuminate a diamond switch at rates of 1 billion to 100 billion pulses per second. The diamond switch connects a high voltage source to a millimeter wave transmitter or other load. In preferred embodiments the electron pulses are provided by a klystron or a traveling wave tube.

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We claim:

1. A millimeter wave device for producing a high power millimeter waves comprising:

(a) a high voltage source,

(b) a millimeter wave output means for transmitting the high power millimeter waves,

(c) a diamond switch electrically connecting said high voltage source to said millimeter output means, and

(d) a pulsed electron beam means for illuminating said diamond switch with a pulsed electron beam of more than 1 billion electron pulses per second, the frequency of said pulsed electron beam defining a pulsed beam frequency, said pulsed electron beam means comprising:

(i) an electron beam means for producing an electron beam and

(ii) a bunching means for bunching said electron beam to create said pulsed electron beam:

said millimeter waves being generated by the opening and closing of said diamond switch by said pulsed electron beam at a frequency equal to said pulsed beam frequency.

2. A device as in claim 1 wherein said beam means comprises a klystron.

3. A device as in claim 1 wherein said beam means comprises a traveling wave tube.