Log periodic backward wave antenna array

Claim 1

AN AERIAL SYSTEM FOR WIDE-BAND USE INCLUDING AN ELONGATED TWO-CONDUCTOR BALANCED FEEDER, A PLURALITY OF HERRINGBONE-LIKE CONDUCTING V-ELEMENTS PLANARLY ARRANGED AND SPACED ALONG SAID FEEDER, EACH OF THE ELEMENTS HAVING A PAIR OF ARMS OF EQUAL LENGTH DEFINING SUBSTANTIALLY AN APEX WITH THE APEXES OF THE PLURALITY OF V-ELEMENTS ALL LYING IN A SUBSTANTIALLY STRAIGHT LINE, A CONNECTION BETWEEN EACH OF THE V-ELEMENTS AND THE FEEDER TO TERMINATE THE ELEMENTS SUBSTANTIALLY AT THE FEEDER, THE TWO V-ELEMENTS FORMING EACH PAIR CONSTITUTING DIPOLE HALVES, ADJACENT DIPOLE SECTIONS OF THE PLURALITY BEING CONNECTED TO DIFFERENT FEEDERS AND THE DIPOLES BEING RELATIVELY SPACED SO THAT THE SPACINGS BETWEEN SUCCESSIVE DIPOLES DIFFER FROM EACH OTHER BY SUBSTANTIALLY A COMMON SCALE FACTOR, ADJACENT DIPOLE SECTIONS HAVING DIFFERENT ELECTRICAL LENGTHS, EACH DIPOLE AND THE FEEDER CONNECTED BETWEEN IT AND THE ADJACENT DIPOLE CONSTITUTING A CELL, THE LENGTHS OF THE DIPOLES INCREASING FROM END OF ARRAY WHERE SPACINGS BETWEEN ADJACENT DIPOLES IS LESS TO END OF THE ARRAY WHERE ADJACENT DIPOLES ARE SPACED THE GREATEST DISTANCE, THE SPACINGS BY THE SCALE FACTOR VARIATION BETWEEN ADJACENT DIPOLES BEING SUCH THAT A COMBINATION OF THE VARIOUS DIPOLES LENGTHS AND SPACINGS PROVIDES A SUBSTANTIALLY UNIFORM WIDE-BAND RESPONSE OVER SEVERAL FREQUENCY BANDS BEARING SUBSTANTIALLY HARMONIC FREQUENCY RELATIONSHIPS TO EACH OTHER, THE CONNECTION BEING MADE IN SUCH A MANNER THAT THE DIRECTIVE GAIN OF THE ANTENNA INCREASES AS THE OPERATION SHIFTS FROM ONE BAND TO ANOTHER BAND OF HIGHER FREQUECY, AND MEANS TO CONNECT THE FEEDER TO AN EXTERNAL CIRCUIT AT A LOCATION SUBSTANTIALLY REMOVED FROM THE LONGEST OF THE V-ELEMENTS IN THE DIRECTION OF THE SMALLEST OF THE V-ELEMENTS.