Voltage tunable tunnel diode microwave amplifier

Claim 1

A VOLTAGE TUNABLE MICROWAVE AMPLIFIER COMPRISING: FIRST AND SECOND PARALLEL ELECTRICALLY CONDUCTIVE PLATES, A FIRST ELECTRICALLY CONDUCTIVE STRIP DISPOSED BETWEEN AND PARALLEL TO SAID PLATES, SAID FIRST AND SECOND PLATES BEING ELECTRICALLY CONNECTED TOGETHER AND ELECTRICALLY INSULATED FROM SAID FIRST CONDUCTIVE STRIP, FIRST COAXIAL TRANSMISSION LINE MEANS HAVING AN OUTER CONDUCTOR COUPLED TO ONE OF SAID PLATES AND AN INNER CONDUCTOR COUPLED TO ONE END OF SAID FIRST CONDUCTIVE STRIP, SECOND COAXIAL TRANSMISSION LINE MEANS HAVING AN INNER CONDUCTOR COUPLED TO ONE OF SAID PLATES AND AN INNER CONDUCTOR COUPLED TO THE OTHER END OF SAID FIRST CONDUCTIVE STRIP, A RESISTIVE LOAD COUPLED BETWEEN THE INNER AND OUTER CONDUCTORS OF SAID SECOND COAXIAL TRANSMISSION LINE MEANS, A TUNNEL DIODE COUPLED BETWEEN SAID FIRST CONDUCTIVE STRIP AND ONE OF SAID PLATES AT A PREDETERMINED LOCATION ALONG SAID FIRST CONDUCTIVE STRIP, A SECOND ELECTRICALLY CONDUCTIVE STRIP CONNECTED TO SAID FIRST CONDUCTIVE STRIP BETWEEN SAID SECOND COAXIAL TRANSMISSION LINE MEANS AND SAID TUNNEL DIODE, SAID SECOND CONDUCTIVE STRIP EXTENDING OUTWARDLY FROM SAID FIRST CONDUCTIVE STRIP IN A PLANE PARALLEL TO SAID FIRST AND SECOND PLATES AND BEING ELECTRICALLY INSULATED THEREFROM, A VARACTOR DIODE COUPLED BETWEEN SAID SECOND CONDUCTIVE STRIP AND ONE OF SAID PLATES AT A PREDETERMINED LOCATION ALONG SAID SECOND CONDUCTIVE STRIP, AND MEANS FOR APPLYING AN ELECTRICALLY VARIABLE VOLTAGE TO SAID VARACTOR DIODE.