A new modified-T equivalent-circuit model for the embedded inductors in LTCC is first introduced in this thesis. The model can predict the parallel, series, and ground resonant frequencies successfully. For the embedded capacitors in LTCC, a £k-equivalent circuit that can include first two resonant frequencies has been used. One example for each model has been established to illustrate the broadband features of the models. Finally, a parameter table is given to evaluate the performance of these embedded LTCC inductors and capacitors.