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J Electromagn Eng Sci > Volume 10(3); 2010 > Article
Journal of the Korean Institute of Electromagnetic and Science 2010;10(3):179-182.
DOI: https://doi.org/10.5515/JKIEES.2010.10.3.179   
Novel Compact Bandpass Filter Based on Folded Half Mode Substrate Integrated Waveguide Cavities
Ke Gong, Wei Hong, Jixin Chen, Hongjun Tang, Debin Hou, Yan Zhang
State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University
Abstract
This paper proposed a novel compact bandpass filter with folded half mode substrate integrated waveguide (FHMSIW) cavities using two-layer printed circuit board(PCB) process. The area of the FHMSIW filter is reduced by nearly 50 % and 75 % compared with half mode substrate integrated waveguide(HMSIW) filter and substrate integrated waveguide(SIW) filter, respectively. A four-pole Chebyshev FHMSIW bandpass filter at C-band has been designed, simulated and fabricated. Measured results are presented and found to agree with the full-wave simulated results by using Ansoft HFSS. The filter shows good performance and compact size.
Key words: Bandpass Filter(BPF), Compact Size, Folded Half Mode Substrate Integrated Waveguide(FHMSIW), Half Mode Substrate Integrated Waveguide(HMSIW), Substrate Integrated Waveguide(SIW)

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