Telescoping submarine antenna with capacitive coupling

Claim 1

AN ANTENNA SYSTEM FOR A SUBMARINE HAVING A HULL WHICH IS NORMALLY AT LEAST PARTLY SUBMERGED IN SEA WATER COMPRISING AN INSULATED HOUSING ATTACHED TO SAID HULL, SAID HULL AND SAID INSULATING HOUSING HAVING SIMILAR OPENINGS FORMED THEREIN AND DEFINING A SUBSTANTIALLY CONTINUOUS PASSAGE THERETHROUGH, A CABLE FOR CARRYING RF ENERGY SEALED INTO SAID HOUSING, A FIRST CONDUCTIVE SLEEVE EMBEDDED IN SAID HOUSING AND CONNECTED TO SAID CABLE FOR RF ENERGY TRANSFER THEREBETWEEN, SAID FIRST CONDUCTIVE SLEEVE SURROUNDING SAID OPENING IN SAID HOUSING, AN ANTENNA MAST FORMED OF INSULATING MATERIAL AND MOUNTED FOR RECIPROCAL AXIAL MOVEMENT IN SAID PASSAGE, AN ANTENNA ELEMENT AND A SECOND CONDUCTIVE SLEEVE EMBEDDED IN THE INSULATING MATERIAL OF SAID ANTENNA MAST, SAID ANTENNA ELEMENT AND SAID SECOND CONDUCTIVE SLEEVE BEING ELECTRICALLY CONNECTED TOGETHER, SAID FIRST AND SECOND CONDUCTIVE SLEEVES BEING CLOSELY SPACED BUT INSULATED FROM ONE ANOTHER WHEREBY RF ENERGY MAY BE COUPLED CAPACITIVELY THEREBETWEEN.