Shunt excited log periodic antenna with coax feed

Claim 1

A BROADBAND ANTENNA PLANAR ARRAY STRUCTURE HAVING A COMMON LONGITUDINALLY EXTENDED CENTER PORTION, A FORWARD APEX FEED END, AND A ENLARGED BACK END; MONOPOLE ELEMENTS LONGITUDINALLY SPACED ALONG SAID CENTER PORTION AND EXTENDING OUTWARDLY THEREFROM IN PLANAR RELATION AND IN OPPOSITE DIRECTIONS ALTERNATELY FROM THE FORWARD APEX FEED END TO THE ENLARGED END OF THE ANTENNA PLANAR ARRAY STRUCTURE, AND WITH SUBSTANTIALLY COPLANAR DIMENSIONS AND SPACINGS OF THE MONOPLE ELEMENTS INCREASING UNIFORMLY AND PROPORTIONALLY WITH INCREASE IN DISTANCE FROM THE APEX FEED END OF THE ANTENNA PLANAR ARRAY STRUCTURE; SAID ANTENNA PLANAR ARRAY STRUCTURE BEING PROVIDED WITH A CONNECTION TO A COAXIAL TRANSMISSION LINE HAVING AN OUTER SHEET AND AN INNER CONDUCTOR LINE; TWO FEEDER NETWORK LINES FOR FEEDING THE MONOPOLE ELEMENTS OF EACH SIDE OF SAID PLANAR ARRAY STRUCTURE; SAID CONNECTION TO A COAXIAL TRANSMISSION LINE INCLUDING COMMON CONNECTIVE MEANS FOR THE TWO FEEDER NETWORK LINES AND THE INNER CONDUCTOR OF THE COAXIAL TRANSMISSION LINE AT THE FORWARD APEX FEED END OF THE ANTENNA PLANAR ARRAY STRUCTURE; AND CAPACITIVE MEANS CONNECTED BETWEEN THE RESPECTIVE FEEDER LINES OF THE FEEDER NETWORKS AND THE RESPECTIVE MONOPOLES OF THE PLANAR ARRAY STRUCTURE WHEREIN SAID MONOPOLE ELEMENTS ARE FAT MONOPOLE ELEMENTS WITH SUBSTANTIALLY COPLANAR DIMENSIONS OF THE MONOPOLE ELEMENTS INCREASING UNIFORMLY AND PROPORTIONALLY WITH AN INCREASE IN DISTANCE FROM THE FORWARD APEX FEED END OF THE ANTENNA PLANAR ARRAY STRUCTURE; THE CAPACTIVE MEANS CONNECTED BETWEEN THE RESPECTIVE FEEDER LINES OF THE FEEDER NETWORKS AND THE RESPECTIVE FAT MONOPOLE ELEMENTS OF THE PLANAR ARRAY STRUCTURE INCLUDES RESPECTIVE PORTIONS OF CONDUCTOR LENGTH AND COAX SHIELD FORMED SHUNT CAPACITORS; EACH OF SAID FAT MONOPOLE ELEMENTS HAS A FORWARD PORTION AND A REAR PORTION; WITH THE RESPECTIVE SHUNT CAPACITIVE COAX SHIELDS STRUCTURALLY MOUNTED ON AND IN ELECTRICAL CONTACT WITH THE RESPECTIVE FAT MONOPOLES; AND WHEREIN THE COAX SHIELD OF THE CAPACITIVE MEANS CONNECTED TO EACH RESPECTIVE FAT MONOPOLE ELEMENT SPANS THE FAT MONOPOLE FROM SAID FORWARD PORTION TO SAID REARWARD PORTION AND IS IN DIRECT ELECTRICAL CONTACT WITH BOTH SAID FORWARD AND REAR PORTIONS OF THE RESPECTIVE FAT MONOPOLE ELEMENT.