A Simple Coupled-Line Wilkinson Power Divider for Arbitrary Complex Input and Output Terminated Impedances
Keywords:
Arbitrary complex terminated impedances, coupled line and power dividerAbstract
A simple and analytical design methodology for a novel coupled-line power divider with arbitrary complex terminated impedances is proposed in this paper. Because of the usage of a single-section coupled line, the additional odd-mode characteristic impedance increases the design degree of freedom and makes the isolation structure still use a single resistor when terminated impedances are extended from real values (such as 50 Ohm) to arbitrary complex values. To design this generalized coupled-line power divider, the electrical parameters including electrical lengths and characteristic impedances can be redesigned by the provided closed-form mathematical expressions when complex terminated impedances are known. The validity of this given design methodology has been confirmed by simulation and measurement of two typical microstrip examples.
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References
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