IEICE Electronics Express
Online ISSN : 1349-2543
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Multilayer SIW filters with mixed coupling modified trisection (MCMT)
Ziqiang XuYu ShiWanting ZhouPeng Gao
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JOURNALS FREE ACCESS

2013 Volume 10 Issue 6 Pages 20130117

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Abstract

Mixed coupling modified trisection (MCMT) and its applications to substrate integrated waveguide (SIW) filters are presented. By using source or load to replace a resonator and introducing mixed coupling into conventional trisection, the proposed MCMT not only reduce one resonator but also adds a transmission zero (TZ) to improve the stopand. Moreover, the resonators in MCMT can be embedded into multilayer LTCC substrate to achieve a more compact area. Two SIW filters with two TZs are designed and fabricated to validate the proposed method. Measured results which exhibit good selectivity, agree well with simulated ones.

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© 2013 by The Institute of Electronics, Information and Communication Engineers
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