Design of Broadband Power Combiner Based on Transmission Line Transformer

Using transmission line transformer theory to design multiple power combiners can be suitable for high power and broadband. It has the advantages of small size and low loss. Based on the basic theory of transmission line transformers and selecting appropriate ferrite cores, this article successfully simulates a two-way power combiner with a frequency range of 30 similar to 512MHz. The simulation results show that in this frequency range, the return loss of the output port is greater than 25dB, the insertion loss is less than 0.6dB, and the VSWR is less than 1.1, which has a certain practical reference value.