| 摘要 |
The present invention provides a a Wilkinson power divider circuit, comprising a plurality of N transmission lines (TRL1, TRL2, ..., TRLN), N being an integer equal to or greater than 2, having a respective length of 1 = lambda 0/4 at a center frequency f0 , where lambda 0 is the wavelength at f0, and respective line impedances Zw; said plurality of N transmission lines (TRL1, TRL2, ..., TRLN) being connected to a first port (P1) at a respective first end, to a respective second port (P2, P3, ..., PN+1) at a respective second end, and via a respective resistor (R1, ..., RN) to a node (O) at the respective second end. By means of an additional LC circuit (50) comprising at least an inductor having an inductance L and a capacitor having a capacitance C connected in series between said first port (P1) and said first ends of said plurality of N transmission lines (TRL1, TRL2, ..., TRLN) having its resonance frequency fr at or near said center frequency fo, it is possible to broaden the bandwith at a desired value of the minimum isolation. <IMAGE> |
