Abstract
AbstractA wideband Wilkinson power divider using parallel LC resonant circuit is proposed for different phase output differences. The design theory of the wideband power divider is derived by making the difference between the slopes of the added line for phase shift and the slopes of parallel LC resonant circuit constant zero, and then, the formula is used to find the value L and C. For easy fabrication, the lumped element L and C are implemented as the shunt stub of distributed element.The proposed circuit on Rogers RT 5880 is designed and measured to verify the new design concept. For accurate comparison, the phase shift line of the conventional Wilkinson power divider is added to one of output ports, and the proposed circuit is fabricated with 45° and 90° power divider at 1.5 GHz central frequency. The fractional bandwidth of the proposed 45° and 90° power divider in case of ±10° phase deviation is over 120% and 100%, respectively. Therefore, the measured results are in good agreement with the design method, and the proposed one will be much smaller size than 90° or 180° hybrid couplers. The proposed Wilkin‐ son power divider will be applicable for phase shifter and various microwave circuits.
Published Version
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