Microscan antenna with electrically adjusted ferrite lens

Claim 1

AN ANTENNA COMPRISING TWO PARALLEL PLATES SPACED APART TRANSVERSELY OF THE PLANES OF THE PLATES, A TRANSMISSION LINE CONNECTED TO ONE OF THE PLATES FOR TRANSMITTING ELECTROMAGNETIC WAVES TO AND FROM THE SPACE BETWEEN SAID PLATES, AN ANNULUS OF FERROMAGNETIC MATERIAL DISPOSED BETWEEN SAID PLATES CONCENTRICALLY OF SAID TRANSMISSION LINE WITH THE PLANE OF THE ANNULUS SUBSTANITALLY PARALLEL TO THE PLANES OF THE PLATES, AND AN ANNULAR SERIES OF ELECTROMAGNETS DISPOSED ADJACENT TO THE EXTERIOR OF ONE OF SAID PLATES, EACH ELECTROMAGNET HAVING ELECTRIC COIL MEANS AND A POLE PIECE TRANSVERSELY ALIGNED WITH SAID FERROMAGNETIC ANNULUS FOR MAGNETIZING SAME, A SOURCE OF ALTERNATING CURRENT CONNECTED TO THE COUL MEANS OF SAID ELECTROMAGNETS, A SOURCE OF DIRECT CURRENT CONNECTED TO SAID COIL MEANS, THE CURRENT FROM SAID DIRECT CURRENT SOURCE BEING OF SUCH MAGNITUDE THAT THE ENTIRE FEEROMAGNETIC ANNULUS IS MAGNETIZED TO SATURATION LEVEL, THE CURRENT FROM SAID ALTERNATING CURRENT SOURCE BEING OF SUCH MAGNITUDE AS TO DECREASE THE MAGNETIZATION OF A SECTOR OF THROUGH ANNULUS WHEREBY ELECTROMAGNETIC WAVES PROPAGATING THROUGH THE SECTOR ARE FORMED INTO A DIRECTIVE BEAM, AND PHASE CONTROL MEANS CONNECTED BETWEEN SAID ALTERNATING CURRENT SOURCE AND SAID COIL MEANS AND PROGRESSIVELY DELAYING THE PHASE OF THE ALTERNATING CURRENT APPLIED TO THE SEVERAL COIL MEANS WHEREBY SAID SECTOR OF DECREASED MAGNETIZATION IS PROGRESSIVELY SHIFTED OVER SAID FERROMAGNETIC ANNULUS TO ROTATE THE BEAM.