scholarly journals A tunable third-order bandpass filter based on combining dual-mode square-shaped substrate integrated waveguide resonator with triangular-shaped resonator

2018 ◽  
Vol 29 (1) ◽  
pp. e21454 ◽  
Author(s):  
Lei Li ◽  
Dehao Zhao ◽  
Junkai Bai ◽  
Qing Wang ◽  
Zhenya Lei
Keyword(s):  
Bandpass Filter ◽  
Substrate Integrated Waveguide ◽  
Waveguide Resonator ◽  
Dual Mode ◽  
Third Order

High-isolation diplexer based on dual-mode substrate integrated waveguide resonator

2019 ◽  
Vol 12 (4) ◽  
pp. 288-292
Author(s):  
Kaijun Song ◽  
Mou Luo ◽  
Cuilin Zhong ◽  
Yuxuan Chen
Keyword(s):  
Fourth Order ◽  
Equivalent Circuits ◽  
Substrate Integrated Waveguide ◽  
Waveguide Resonator ◽  
Dual Mode ◽  
Third Order ◽  
High Isolation ◽  
Operating Modes ◽  
Mode Resonator

AbstractA high-isolation diplexer based on a dual-mode substrate integrated waveguide (SIW) resonator is proposed in this paper. Based on the theory of the dual-mode resonator, the miniaturized diplexers are designed by using the SIW dual-mode resonators. The superior isolation of the diplexers is obtained because the two operating modes of the dual-mode SIW resonators are not directly coupled and there is no interference with each other. In order to further improve the isolation of the circuit, the number of the order of the diplexer is added. Equivalent circuits are given to analyze and design the dual-mode high-isolation diplexers. Detailed analyses are given according to the equivalent circuits. The dual-mode third-order and fourth-order diplexers are designed and fabricated. The measured results agree well with the simulated ones. The total sizes of the fabricated third-order and fourth-order diplexers are 1.78λg × 2.64λg and 1.79λg × 3.63λg, respectively.

A reconfigurable dual-mode bandpass filter based on substrate integrated waveguide

2017 ◽  
Vol 59 (4) ◽  
pp. 934-937 ◽  
Author(s):  
Qiao-Li Zhang ◽  
Sulav Adhikari ◽  
Bing-Zhong Wang ◽  
Ke Wu
Keyword(s):  
Bandpass Filter ◽  
Substrate Integrated Waveguide ◽  
Dual Mode

scholarly journals Cross-coupled bandpass filter based on circular substrate integrated waveguide resonator

2016 ◽  
Vol 13 (22) ◽  
pp. 20160953-20160953 ◽  
Author(s):  
Sheng Zhang ◽  
Hai-Ting Wang ◽  
Jia-Yu Rao ◽  
Xue-Dong Fu ◽  
Fa-Lin Liu
Keyword(s):  
Bandpass Filter ◽  
Substrate Integrated Waveguide ◽  
Waveguide Resonator

scholarly journals Ka-Band LTCC Stacked Substrate Integrated Waveguide Bandpass Filter

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Peng Zheng ◽  
Zhifu Liu ◽  
Mingsheng Ma ◽  
Yi Wang ◽  
Feng Liu ◽  
...  
Keyword(s):  
Bandpass Filter ◽  
Coplanar Waveguide ◽  
Three Dimensional ◽  
Substrate Integrated Waveguide ◽  
Third Order ◽  
Ka Band ◽  
Vertical Coupling ◽  
Vertical Transition ◽  
Compact Size ◽  
Narrow Slot

A Ka-band substrate integrated waveguide bandpass filter has been designed and fabricated using low temperature co-fired ceramic (LTCC) technology. The in-house developed SICCAS-K5F3 material with a permittivity of 6.2 and a loss tangent of 0.002 was used. The size and surface area of the proposed bandpass filter are reduced by exploiting vertical coupling in vertically laminated three-dimensional structures. The coupling between adjacent cavities is realized by a narrow slot. A vertical transition structure between the coplanar-waveguide feed line and the substrate integrated waveguide is adopted to facilitate the internal signal connection. The demonstrated third-order filter has a compact size of 6.79 mm×4.13 mm×1.34 mm (0.63λ0  × 0.38λ0  × 0.12λ0) and exhibits good performance with a low insertion loss of 1.74 dB at 27.73 GHz and a 3 dB fractional bandwidth of 10 %.

Sign in / Sign up

Export Citation Format

Share Document