Suppression of Couplings in High-Speed Interconnects Using Absorbing Materials

In this paper, we propose and investigate two novel applications of absorbing materials to suppress high-frequency couplings in high-speed interconnects. In the first application, absorbing materials are added to connector housing to reduce the noises caused by crosstalk and resonances. In the second application, a low-emission inductor is proposed by applying absorbing materials surrounding the body of an inductor. Full-wave simulations and measurements are performed to verify the proposed techniques. Results show absorbing materials significantly improve the performance of signal/power integrity and greatly reduce electromagnetic interference for high-speed digital system designs.