Stripline variable capacitance diode phase shifter

Claim 1

A TRANSMISSION LINE PHASE SHIFTER FOR VARYING THE RELATIVE PHASE OF A MICROWAVE VOLTAGE WITH A LOWER FREQUENCY CONTROL SIGNAL, SAID PHASE SHIFTER COMPRISING IN COMBINATION (A) A FIRST AND SECOND MICROWAVE PORTS, (B) A TRANSMISSION LINE CONNECTED WITH SAID PORTS TO PROPAGATE SAID MICROWAVE VOLTAGE BETWEEN THEM, (1) SAID TRANSMISSION LINE COMPRISING A FIRST CONDUCTOR AND A COMPOSITE SECOND CONDUCTOR SPACED ABOVE SAID FIRST CONDUCTOR, (2) SAID COMPOSITE SECOND CONDUCTOR SPACED A FIRST CONDUCTIVE MEMBER AND SECOND AND THIRD CONDUCTIVE MEMBERS SPACED BETWEEN SAID FIRST CONDUCTIVE MEMBER AND SAID FIRST CONDUCTOR, (3) SAID FIRST CONDUCTIVE MEMBER SUCCESSIVELY COMPRISING A FIRST COUPLING PORTION, A PHASING SECTION AND A SECOND COUPLING PORTION, (A) SAID FIRST AND SECOND COUPLING PORTIONS BEING DISPOSED RESPECTIVELY IN REGISTERED ALIGNMENT WITH SAID SECOND AND THIRD CONDUCTIVE MEMBERS, (4) SAID SECOND AND THIRD CONDUCTIVE MEMBERS BEING ISOLATED FROM SAID FIRST CONDUCTIVE MEMBER AT SAID LOWER FREQUENCY OF SAID CONTROL SIGNAL, (C) AT LEAST ONE VARIABLE REACTANCE ELEMENT CONNECTED BETWEEN SAID FIRST CONDUCTIVE MEMBER PHASING SECTION AND SAID FIRST CONDUCTOR TO VARY THE TRANSMISSION LINE PHASE CONSTANT ALONG SAID PHASING SECTION IN RESPONSE TO CHANGES IN SAID CONTROL SIGNAL APPLIED ACROSS SAID ELEMENT, (D) FIRST AND SECOND CONDUCTOR MEANS FOR RECEIVING SAID CONTROL SIGNAL BETWEEN THEM, (1) SAID FIRST CONDUCTOR MEANS BEING CONNECTED WITH SAID FIRST CONDUCTOR, AND (E) AN INNER CONDUCTOR CHOKE CIRCUIT CONNECTED BETWEEN SAID SECOND CONDUCTOR MEANS AND SAID FIRST CONDUCTIVE MEMBER, (1) SAID CHOKE CIRCUIT PRESENTING A RELATIVELY LOW IMPEDANCE TO SAID CONTROL SIGNAL BETWEEN SAID SECOND CONDUCTOR MEANS AND SAID FIRST CONDUCTIVE MEMBER AND (2) PRESENTING A RELATIVELY LARGE IMPADANCE AT THE JUNCTION BETWEEN SAID CHOKE CIRCUIT AND SAID FIRST CONDUCTIVE MEMBER TO IMPEDE SAID VOLTAGE FROM LEAKING ONTO SAID CHOKE CIRCUIT.