On the mutual admittance between clavin elements

A slot straddled by two parasitic monopoles (Clavin element) is known to be capable of producing equal
E
and
H
plane patterns, and thus offers the promise of lower mutual coupling than the slot alone. An analysis is presented which demonstrates that this promise is realized. Comparison with experiment is offered, together with a procedure for designing linear and planar arrays of Clavin elements in the presence of mutual coupling. Such arrays have the advantage of very low far-out side lobes in all
\phi
cuts.