Solid state klystron

Claim 2

A solid state microwave generator for use in place of a low power tube-type klystron and operable from the klystron cathode and reflector voltage supplies comprising: (a) means for providing a cathode voltage; (b) means for providing a reflector voltage; (c) means responsive to said cathode voltage for reducing the voltage level of said cathode voltage to a first predetermined voltage; (d) tuning adapter means responsive to said reflector voltage for providing gain compensation to said reflector voltage; and (e) solid state oscillator means responsive to said first predetermined voltage and said gain compensated reflector voltage for generating an a-c output signal, said gain compensated reflector voltage determining the frequency of said a-c output signal.

Claim 3

The apparatus of claim 1 wherein said solid state oscillating means includes: (a) an oscillator cavity; (b) tuning means disposed inside said oscillator cavity and responsive to said gain compensated reflector voltage for determining the frequency of said a-c output signal; (c) an oscillator element responsive to said first predetermined voltage and to said tuning means for providing said a-c output signal, said oscillator element being disposed within said cavity.

Claim 4

The apparatus of claim 2 wherein said tuning means includes a varactor.

Claim 5

The apparatus of claim 2 wherein said tuning means includes a YIG sphere.

Claim 6

The apparatus of claim 2 wherein said tuning means includes a ferrite.

Claim 7

The apparatus of claim 2 wherein said tuning adapter means provides gain compensation to said reflector voltage such that the frequency of said a-c output signal is a linear function of said reflector voltage.

Claim 8

The apparatus of claim 1 wherein said tuning adapter means includes an operational amplifier having a non-linear element in a feedback path.

Claim 9

The apparatus of claim 7 wherein said non-linear element includes a logarithmic diode network.

Claim 10

The apparatus of claim 7 wherein said non-linear element includes a piecewise linear diode network.

Claim 11

The apparatus of claim 2 wherein said oscillator element includes a Gunn oscillator.

Claim 12

The apparatus of claim 2 wherein said oscillator element includes an Impatt diode.

Claim 13

The apparatus of claim 2 wherein said oscillator element includes an LSA device.

Claim 14

The apparatus of claim 2 wherein said oscillator element includes a Trapatt device.

Claim 15

The apparatus of claim 2 wherein said oscillator element includes a TEO oscillator.

Claim 16

The apparatus of claim 2 wherein said oscillator element includes a FET transistor oscillator.

Claim 17

The apparatus of claim 2 wherein said oscillator element includes a GASFET transistor oscillator.

Claim 18

The apparatus of claim 2 wherein said oscillator element includes: (a) a bipolar transistor oscillator connected to receive said first predetermined voltage, said bipolar oscillator having a first a-c signal appearing on an output thereof; (b) an N-stage varactor frequency multiplier circuit connected to receive said first a-c signal, said a-c output signal appearing on the output of said varactor frequency multiplier circuit.

Claim 19

A solid microwave generator for use in place of a low power tube-type klystron and operable from the klystron a-c filament and reflector voltage supplies comprising: (a) means for providing a-c filament voltage; (b) fullwave rectifier means for converting said a-c filament voltage to a d-c filament voltage; (c) means connected to receive said d-c filament voltage for reducing the voltage level of said d-c filament voltage to a first predetermined voltage; (d) means for providing a reflector voltage; (e) tuning adapter means responsive to said reflector voltage for providing gain compensation to said reflector voltage; and (f) solid state oscillator means being connected to receive said first predetermined voltage and said gain compensated reflector voltage for generating an a-c output signal, said gain compensated reflector voltage determining the frequency of said a-c output signal.

Claim 20

A solid microwave generator for use in place of a low power tube-type klystron and operable from the klystron a-c filament and reflector voltage supplies comprising: (a) means for providing a-c filament voltage; (b) fullwave rectifier means for converting said a-c filament voltage to a d-c filament voltage; (c) means connected to receive said d-c filament voltage for reducing the voltage level of said d-c filament voltage to a first predetermined voltage; (d) means for providing a reflector voltage; (e) tuning adapter means responsive to said reflector voltage for providing gain compensation to said reflector voltage; and (f) solid state oscillator means being connected to receive said first predetermined voltage and said gain compensated reflector voltage for generating an a-c output signal, said gain compensated reflector voltage determining the frequency of said a-c output signal.

Claim 21

The apparatus of claim 18 wherein said solid state oscillating means includes: (a) an oscillator cavity; (b) tuning means disposed inside said oscillator cavity and responsive to said gain compensated reflector voltage for determining the frequency of said a-c output signal; (c) an oscillator element responsive to said first predetermined voltage and to said tuning means for providing said a-c output signal, said oscillator element being disposed within said cavity.

Claim 22

The apparatus of claim 19 wherein said tuning means includes a varactor.

Claim 23

The apparatus of claim 19 wherein said tuning means includes a YIG sphere.

Claim 24

The apparatus of claim 19 wherein said tuning means includes a ferrite.

Claim 25

The apparatus of claim 19 wherein said tuning adapter means provides gain compensation to said reflector voltage such that the frequency of said a-c output signal is a linear function of said reflector voltage.

Claim 26

The apparatus of claim 18 wherein said tuning adapter means includes an operational amplifier having a non-linear element in a feedback path.

Claim 27

The apparatus of claim 24 wherein said non-linear element includes a logarithmic diode network.

Claim 28

The apparatus of claim 24 wherein said non-linear element includes a piecewise linear diode netowrk.

Claim 29

The apparatus of claim 19 wherein said oscillator element includes a Gunn oscillator.

Claim 30

The apparatus of claim 19 wherein said oscillator element includes an IMPATT diode.

Claim 31

The apparatus of claim 19 wherein said oscillator element includes an LSA device.

Claim 32

The apparatus of claim 19 wherein said oscillator element includes a TRAPATT device.

Claim 33

The apparatus of claim 19 wherein said oscillator element includes a TEO oscillator.

Claim 34

The apparatus of claim 19 wherein said oscillator element includes a FET transistor oscillator.

Claim 35

The apparatus of claim 19 wherein said oscillator element includes a GASFET transistor oscillator.

Claim 36

The apparatus of claim 19 wherein said oscillator element includes: (a) a bipolar transistor oscillator connected to receive said first predetermined voltage, said bipolar oscillator having a first a-c signal appearing on an output thereof; (b) an N-stage varactor frequency multiplier circuit connected to receive said first a-c signal, said a-c output signal appearing on an output of said varactor frequency multiplier circuit.