MULTI-TRANSFORMER ARCHITECTURE FOR AN ACTIVE RF CIRCUIT

摘要

A circuit features a balun (102) having an unbalanced input (103) and a balanced output (105), and a differential coupler (104) having a symmetrical structure about a center axis (CENTER AXIS). The differential coupler has a differential input (107) and a differential output (109), the differential input being coupled to the balanced output of the balun. An impedance element (110) is coupled to a circuit node of the differential coupler at a point along the center axis. Other embodiments are also described and claimed.