Compact Differential Power Dividers With Arbitrary Complex Terminations for 6G FR3Communication

Abstract

This article presents compact N-way power dividers to address the size and impedance limitations of the quarter-wavelength transmission line-based power divider. In this work, we employ an even-odd analysis to separate the design of the power-transmission network from the port-isolation network. This approach enables the derivation of rigorous closed-form design equations for arbitrary complex source and load impedances' matching networks. As proof-of-concept (PoC), two types of power dividers (C-L and L-C types) were implemented targeting 6G Frequency Range 3 (FR3) upper mid frequency bands. The C-L type divider achieves an insertion loss of 0.85-1.52dB and isolation of 15.5-33.1dB across the 12-18GHz. The L-C type divider exhibits an insertion loss of 0.76-1.16dB and isolation of 16.1-31.1dB over the 7-11GHz.