Ultra Wideband Power Combiner Based on TEM-TE10 Mode Transducer
Hai‐Xu Liu, Yonghong Zhang, Xinsheng Li, Hongwei Zhang · 2024
A novel millimeter wave ultra wideband radial power combiner based on ridge waveguide and coaxial waveguide mode transducer is presented in this paper. Both ridge waveguide TE10mode and coaxial waveguide TEM mode operates a wider bandwidth. Based on the excellent performance, a new TEM-TE10mode transformation is proposed in this study and a 32 way millimeter wave ultra wideband power combiner is successfully designed based on the mode transformation. The electromagnetic field simulation results show that the synthesizer operates at a relative bandwidth of up to 68.8% with a bandwidth of 21 GHz and maximum amplitude imbalance of±0.2 dB, phase imbalance of ±1°, worst case isolation of 10dB between branches can be obtained.