CST – Computer Simulation Technology

Improved Microstrip Filters Using PMC Packaging by Lid of Nails

Title:
Improved Microstrip Filters Using PMC Packaging by Lid of Nails
Author(s):
Astrid Algaba Brazález, Ashraf Uz Zaman, Per-Simon Kildal
Source:
IEEE Transactions on Components, Packaging and Manufacturing Technology
Vol./Issue/Date:
Volume: 2, Issue: 7, July 2012
Year:
2012
Page(s):
1075 - 1084
Keywords:
Artificial magnetic conductor (AMC), coupled line filter, gap waveguide, microstrip circuit, packaging, parallel plate mode
Abstract:
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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