Analysis of two coupled coplanar loops

Two identical coplanar rectangular loops have been analyzed. For various shapes of the loops, as well as various spacings between loops, circuit properties have been investigated. The center-line-driven loop antenna has also been investigated as two coplanar loops with infinitesimal spacing. It is shown that the center-line-driven loop antenna may be characterized by a relatively high impedance property, and if the shape of the loop is appropriate, its impedance can have a broadband property.