Lobe switching directional antenna with directional couplers for feeding and phasing signal energy

Claim 1

A DIRECTIONAL ANTENNA ARRAY OF THE LOBE-SWITCHING TYPE COMPRISING: FIRST, SECOND, THIRD, AND FOURTH RADIATING ELEMENTS ARRAYED IN ORDER ALONG A COMMON LINE; FIRST, SECOND, THIRD AND FOURTH DIRECTIONAL COUPLERS, EACH HAVING FIRST AND SECOND INPUT ARMS AND FIRST AND SECOND OUTPUT ARMS, AND BEING RESPONSIVE TO SIGNALS APPLIED TO EACH OF SAID INPUT ARMS FOR PRODUCING OUTPUT SIGNALS OF EQUAL AMPLITUDE IN PHASE QUADRATURE OVER A BROAD, CONTINUOUS BAND OF FREQUENCIES AT EACH OF SAID OUTPUT ARMS, SAID OUTPUT SIGNALS HAVING A FIRST RELATIVE PHASE WHEN SIGNALS ARE APPLIED TO SAID FIRST INPUT ARM AND ANOTHER RELATIVE PHASE WHEN SIGNALS ARE APPLIED TO SAID SECOND INPUT ARM, FIRST, SECOND, THIRD AND FOURTH MEANS HAVING EQUAL ELECTRICAL LENGTH FOR COUPLING SAID FIRST AND SECOND RADIATING ELEMENTS TO SAID FIRST AND SECOND OUTPUT ARMS OF SAID FIRST DIRECTIONAL COUPLER, AND SAID THIRD AND FOURTH RADIATING ELEMENTS TO SAID FIRST AND SECOND OUTPUT ARMS OF SAID SECOND DIRECTIONAL COUPLER; FIFTH AND SIXTH MEANS HAVING EQUAL ELECTRICAL LENGTH FOR COUPLING SAID FIRST INPUT ARMS OF EACH OF SAID FIRST AND SECOND DIRECTIONAL COUPLERS TO SAID FIRST AND SECOND OUTPUT ARMS OF SAID THIRD DIRECTIONAL COUPLER, RESPECTIVELY; SEVENTH AND EIGHTH MEANS HAVING EQUAL ELECTRICAL LENGTH TO SAID FIFTH AND SIXTH MEANS FOR COUPLING SAID SECOND INPUT ARMS OF EACH OF SAID FIRST AND SECOND DIRECTIONAL COUPLERS TO SAID FIRST AND SECOND OUTPUT ARMS OF SAID FOURTH DIRECTIONAL COUPLER, RESPECTIVELY; AND MEANS FOR ALTERNATELY APPLYING INPUT SIGNALS TO THE FIRST INPUT ARM OF SAID THIRD DIRECTIONAL COUPLER AND THE SECOND INPUT ARM OF SAID FOURTH DIRECTIONAL COUPLER.