Filtering Power Divider Design Using Resonant LC Branches for 5G Low-Band Applications

This paper proposes an ultra-compact filtering power divider with a wide harmonic suppression band. In this design, the proposed (PD) in ideal case has 100% size reduction and infinite number of harmonics suppression. However, real case, 92% suppresses 2nd to 45th harmonics. The small-proposed is designed at 0.9 GHz. typical Wilkinson two long quarter-wavelength branches. new resonant series LC branches are used instead divider’s branches, leading performance improvements PD. To best authors’ knowledge, PD reduction, reported thus far. response good insertion loss passband, which desirable for modern communication systems.