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|Title:||Double-folded substrate integrated waveguide band-pass filter with transmission zeros in LTCC|
|Citation:||Xu, L.-J., Wang, J.P., Guo, Y.-X., Wu, W. (2013). Double-folded substrate integrated waveguide band-pass filter with transmission zeros in LTCC. Journal of Electromagnetic Waves and Applications 27 (1) : 96-103. ScholarBank@NUS Repository. https://doi.org/10.1080/09205071.2013.739540|
|Abstract:||A miniaturized substrate integrated waveguide (SIW) band-pass filter with two transmission zeros is proposed in low-temperature co-fired ceramic (LTCC) technology. The miniaturization of the filter is achieved by vertically stacking three double-folded SIW resonators. To strengthen the coupling between the feeding structure and the resonators, a new meandered microstrip feeding line is introduced. In addition, to realize better out-of-band rejection performance, two λg/4 short-circuited lines are adopted in the filter design to achieve two transmission zeros outside the passband. To verify the design concept, an X-band LTCC band-pass filter was designed, fabricated, and measured. Both simulation and measurement results indicate that the proposed filter has good frequency response, high selectivity, and a size reduction of about 87% in comparison with conventional planar direct-coupled waveguide filter. © 2012 Taylor & Francis.|
|Source Title:||Journal of Electromagnetic Waves and Applications|
|Appears in Collections:||Staff Publications|
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