摘要

A very compact electromagnetic bandgap structure is presented for integrated-circuits applications. This structure, which is one kind of high-impedance surface with periodic interdigital elements, is adopted to increase the fringe capacitor in order to compress the overall size of the high-impedance surface. Its design used the effective-circuit model. The measured results show that a 30% to 40% size reduction can be obtained. This will be very valuable for practical applications.