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2011-07-22
Quadri-Folded Substrate Integrated Waveguide Cavity and Its Miniaturized Bandpass Filter Applications
By
Progress In Electromagnetics Research C, Vol. 23, 1-14, 2011
Abstract
In this paper, a quadri-folded substrate integrated waveguide (QFSIW) resonant cavity is proposed and investigated for the first time, which is able to reduce the circuit size by 89% compared with the conventional substrate integrated waveguide (SIW) resonant cavity. It has a two-layer configuration and a C-type coupling slot etched on the middle conductor layer. As an example, such a miniaturized resonant cavity is employed in the design of a four-order S-band SIW bandpass filter with the Chebyshev response. Negative couplings are used between two adjacent SIW resonant cavities, which don't influence the whole transmission characteristic of the filter. Experimental results are in good agreement with those from simulations.
Citation
Chuan An Zhang Yu Jian Cheng Yong Fan , "Quadri-Folded Substrate Integrated Waveguide Cavity and Its Miniaturized Bandpass Filter Applications," Progress In Electromagnetics Research C, Vol. 23, 1-14, 2011.
doi:10.2528/PIERC11052401
http://www.jpier.org/PIERC/pier.php?paper=11052401
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