| 摘要 |
Embodiments of the invention include transmission line transformers (100). According to one aspect, a multilayer transmission line transformer (TLT, 100) includes a first set of two conductors (18, 20) forming a first clockwise spiral. The TLT includes a second set of two conductors (38, 40) forming a second counterclockwise spiral that is substantially coaxial with the first spiral. The first and second spirals are arranged to cause a substantial cancellation of common mode currents in the first and second sets of conductors during operation of the TLT. Such TLTs are wideband and exhibit high common mode current suppression and high common mode impedance. |
