Fabrication and testing of a microelectromechanical systems type dielectric core Ethernet transformer

摘要

Toroidal 32- and 64-turn transformers with a unity turn ratio and a silicon dioxide core material were fabricated and tested. The resulting differential mode transfer relation is analyzed with infinite and 100 Q resistive loads. The best performance is found for a 32-turn transformer with a 100 O load, having a relatively flat transfer relation in the frequency range of 10-40 MHz.