Loop antenna with distributed impedance near the terminating gap

Claim 1

A loop antenna for operation over the entire very high frequency television frequency bands comprising: a pair of metal bands arranged in a loop having a pair of gaps between said metal bands, a first of said gaps forming a pair of feed terminals and a second of said gaps being directly opposite the first gap, said loop being dimensioned to provide a linear distance less then a half wavelength at the highest frequency within said bands between points on said loop situated midway between the pair of gaps, a resistance coupled across said second gap, said resistance having a predetermined value providing a substantially maximum response to signals in the direction of said first gap in said bands, and said metal bands having slots near the second gap which are dimensioned to provide a pair of distributed reactances of given values in series with said resistance, said given values of said reactances and said predetermined value resistanCe cooperating to achieve low back lobes and said substantially deep and uniform nulls in the direction of the second gap over the entire very high frequency television frequency bands with respect to that obtainable without said slots.