A Low Loss Self-Packaged Power Divider Using Right-Angled Isosceles Triangular Patch Based on the SISL Platform

This paper proposes a low-loss power divider using the right-angled isosceles triangular patch (RITP) based on the substrate integrated suspended line (SISL) platform. By adjusting the length of slots on the patch to control the resonant frequencies of different TM modes, the required operating frequency band and input return loss are obtained. The measured return loss is better than 15 dB from 6.05 to 6.77 GHz. The measured phase imbalance is less than 1° from 6.26 to 6.56 GHz. The self-packaged SISL RITP power divider is embedded into SISL cavities and has a very low insertion loss. From 6.12 to 6.76 GHz, the measured insertion loss is better than 0.31 dB, which is much smaller than previous works.