Antenna system

Claim 1

IN AN ANTENNA SYSTEM FOR SIMULTANEOUSLY OBTAINING THREE SPACED DISPLACED LOBE PATTERNS DURING RECEPTION, A PAIR OF ANTENNA ELEMENTS DISPLACED APART AT LEAST ONE QUARTER WAVELENGTH, A FIRST FOUR TERMINAL DIRECTIONAL COUPLER HAVING TWO LEAD-IN AND TWO LEAD-OUT TERMINALS, EACH OF SAID LEAD-IN TERMINALS BEING CONNECTED RESPECTIVELY TO A DIFFERENT ONE OF THE TWO ANTENNAS, A SECOND FOUR TERMINAL DIRECTIONAL COUPLER HAVING ONE OF ITS LEADIN TERMINALS CONNECTED TO ONE OF SAID LEAD-OUT TERMINALS OF THE FIRST COUPLER, AND HAVING ONE OF ITS LEAD-OUT TERMINALS CONNECTED TO A FIRST OUTPUT LINE AND A SECOND OF ITS LEAD-OUT TERMINALS CONNECTED TO A COMMON OUTPUT LINE AND ITS REMAINING LEAD BALANCED WITH RESPECT TO THE COMMON OUTPUT LINE, AND A THIRD FOUR TERMINAL DIRECTIONAL COUPLER HAVING ONE OF ITS LEAD-IN TERMINALS CONENCTED TO THE REMAINING LEAD-OUT TERMINAL OF THE FIRST DIRECTION COUPLER, AND HAIVNG A LEAD-OUT TERMINAL CONNECTED TO A SECOND OUTPUT LINE AND THE OTHER LEAD-OUT TERMINAL BEING CONNECTED TO THE COMMON OUTPUT LINES AND THE REMAINING LEAD-IN TERMINAL BALANCED WITH RESPECT THE COMMON OUTPUT LINE, WHEREBY EACH OF SAID OUTPUT LINES RECEIVES A LOBE PATTERN OF SUBSTANTIALLY THE SAME FORM AS THAT OF THE OTHER OUTPUT LINE THAT IS SPACE DISPLACED FROM THE OTHERS, WITH THE LOBE PATTERN BEING RECEIVED BY THE COMMON OUTPUT LINE BEING SYMMETRICAL ABOUT A LINE NORMAL TO THE PLANE OF THE ANTENNAS AND WITH THE LOBES RECEIVED BY THE FIRST AND SECOND OF SAID LINES BEING OPPOSITELY ANGULARLY DISPLACED FROM SAID NORMAL LINE.