Log-periodic zig zag antenna

Claim 1

A LOG PERIODIC ZIG-ZAG ANTENNA FOR TELEVISION RECEPTION OF SIGNALS IN THE UHF BAND, 470-890 MC., OPERATING IN THE BACKFIRE MODE AND HAVING A SUBSTANTIALLY UNIDIRECTIONAL RADIATION PATTERN, SAID ANTENNA COMPRISING: A PAIR OF CONDUCTING MEMBERS HAVING RESPECTIVE FEED POINTS, SAID CONDUCTING MEMBERS ADJACENTLY DISPOSED AT SAID FEED POINTS AND EXTENDING OUTWARDLY AT A SELECTED ANGLE TO EACH OTHER; EACH OF SAID MEMBERS INCLUDING A CONDUCTING ELEMENT CONTINUOUSLY EXTENDING OUTWARDLY FROM THE RESPECTIVE FEED POINT IN SUBSTANTIALLY A ZIG-ZAG MANNER WHEREIN THE ZIG-ZAG PATTERN IS FORMED FROM A PLURALITY OF GENERALLY REVERSING V-SHAPED SECTIONS ELECTRICALLY COUPLED SOLELY IN AND END TO END MANNER, SAID CONDUCTING ELEMENTS BEING TURNED RELATIVE TO EACH OTHER TO PROVIDE A SINGLE LOBE BACKFIRE RADIATION PATTERN FROM THE FEED POINT; EACH OF SAID V-SHAPED SECTIONS HAVING SIDES DISPOSED AND ELECTRICALLY COUPLED SOLELY IN AN END TO END MANNER TO DEFINE A SERIES OF OPEN V-SHAPED SECTIONS WITH SUBSTANTIALLY PARALLEL RESPECTIVE SIDES; AND WHEREIN EACH OF SAID CONDUCTING ELEMENTS INCLUDES A TAPER ANGLE A SUBSTANTIALLY EQUAL TO 7.5*, AN ANGLE OF INCREASE IN CONDUCTOR WIDTH, B SUBSTANTIALLY EQUAL TO 2.5*, AND A SCALE FACTOR, R RELATING TO THE LENGTHS OF EACH ADJACENT V-SHAPED SECTION, SUBSTANTIALLY EQUAL TO 0.9, SUCH THAT THE INPUT IMPEDANCE OF SAID ANTENNA IS SUITABLY MATCHED TO 300 OHMS AND IS SUBSTANTIALLY INDEPENDENT OF FREQUENCY OVER SAID UHF BAND.