Novel three-port power divider based on cavity

In this paper, the proposed three-port power divider based on four stages cavity, which is different to the conventional power divider using coupled transmission line. The design and simulated results show that the novel power divider has a good performance, which are insert loss 4.77plusmn0.13 dB from 690 MHz to 2.5 GHz, and return loss less than -18 dB, respectively. In addition, the performances of the novel power divider are demonstrated experimentally. The measured results are good well with the simulated ones.