2Hsu J Y, Lin H C,Shen H D, et al. High frequency muhilayer chip inductors[ J]. IEEE Transactions on Magnetics, 1997,33 (5) :3325-3327
3Huang,Yamamoto J K. Low dielectric constant ceramic for e.g. patch antenna substrates-made by mixing a glassy precursor with a high purity cordierite and dopants prior to firing [ P]. USA patant,5858893-A