Basic RF Characteristics of the Microstrip Line Employing Periodically Perforated Ground Metal on MMIC

In this work, using theoretical and experimental analysis, basic characteristics of the microstrip line employing PPGM (periodically perforated ground metal) was investigated in order to evaluate its suitability for application to a development of miniaturized on-chip passive components. According to the results, it was found that the PPGM structure is a promising candidate for application to a development of miniaturized components on MMIC (monolithic microwave integrated circuit). In addition, basic characteristics of the coupled microstrip line employing PPGM was also investigated. Theoretical and experimental investigation indicated that microstrip lines employing PPGM are very useful for application to compact signal lines of highly integrated MMIC requiring a high isolation characteristics between lines.