Miniaturized Equal Power Divider Using Corrugated Substrate Integrated Waveguide

Abstract

In this paper, a 3-dB power divider based on the structure of CSIW from full mode to half mode is developed for the active integrated circuit. Its central frequency is 8GHz. The simulation result is presented that the fabricated power divider achieves an insertion loss of about 3.9±0.3 dB from 6.5 to 9.5 GHz. In the frequency range from 6 to 10 GHz, the return loss is better than 10 dB, with the value higher than 15 dB in the band7.5– 9.5GHz. In the range of 6.5GHz to 9.5GHz, S23 reaches 22.5dB, which obviously shows that the isolation degree has been improved and meets the design requirements of relatively high isolation and return loss.