CST – Computer Simulation Technology

Improved Microstrip Filters Using PMC Packaging by Lid of Nails
Astrid Algaba Brazález, Ashraf Uz Zaman, Per-Simon Kildal
IEEE Transactions on Components, Packaging and Manufacturing Technology
Volume: 2, Issue: 7, July 2012
1075 - 1084
Artificial magnetic conductor (AMC), coupled line filter, gap waveguide, microstrip circuit, packaging, parallel plate mode
This paper shows that microstrip filters perform like textbook examples when packaged with perfect magnetic conductor (PMC). A PMC is made as a pin surface or lid of nails, and this is used to package a microstrip parallel coupled line bandpass filter. Our measurements confirm that parallel plate, cavity modes, and radiation are suppressed. This paper also includes a study of the reasons for a frequency shift between the ideal PMC packaged case and the realized case.

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