Fig. 9
Current distribution and influence of rectangular stubs on \({\text {T}}_{\text {x}}\) antenna performance. (a) \({\text {T}}_{\text {x}}\) surface current distribution. (b) Reflection coefficients (\({\text {S}}_{\text {22}}\)) of the \({\text {T}}_{\text {x}}\). (c) \({\text {S}}_{\text {21}}\) between \({\text {T}}_{\text {x}}\) and \({\text {R}}_{\text {x}}\).
