2–10 GHz multisection 2-way Wilkinson power divider with enhanced port match and isolation

This paper presents two broadband Wilkinson power dividers (WPDs) using single layer microstrip lines. Operation of these WPDs from 2 GHz to 10 GHz could be achieved by using multisectional structure. Presented WPDs have 6 sections and differ in the size of the isolation resistors which have size of 0402 and 0603. For experimental verifications two devices were fabricated and the measurement results match with the simulation results well. Measurement results of the two independent samples show a bandwidth from 2 GHz to 10 GHz with an insertion loss of lower than 0.4 dB, isolation of greater than 25 dB, amplitude and phase imbalance of lower than ±0.3 dB and ±3°, respectively. The realized WPDs exhibit better matching, isolation and phase/amplitude imbalance compared with other wideband power dividers published so far.