scholarly journals Low Loss Substrate-Integrated Waveguide Using 3D-Printed Non-Uniform Honeycomb-Shaped Material

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 191090-191099
Author(s):  
Yeonju Kim ◽  
Sungjoon Lim
Keyword(s):  
Substrate Integrated Waveguide ◽  
Low Loss ◽  
3D Printed

scholarly journals Low-Loss and Light Substrate Integrated Waveguide Using 3D Printed Honeycomb Structure

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 402
Author(s):  
Yeonju Kim ◽  
Manos Tentzeris ◽  
Sungjoon Lim
Keyword(s):  
Polylactic Acid ◽  
Insertion Loss ◽  
Honeycomb Structure ◽  
Light Weight ◽  
Substrate Integrated Waveguide ◽  
Low Loss ◽  
Additional Advantage ◽  
3D Printed

This article proposes a low-loss and light 3D-printed substrate-integrated waveguide (SIW). Despite the use of lossy polylactic acid (PLA) material, insertion loss is reduced, and bandwidth is increased due to a honeycomb substrate similar to air. To demonstrate the proposed concept, we fabricated microstrip-fed SIWs with solid PLA and honeycomb substrates, and compared their performance numerically and experimentally. Average measured insertion loss from 3.4 to 5.5 GHz for the honeycomb SIW is 1.38 dB, whereas SIW with solid PLA is 3.15 dB. Light weight is an additional advantage of the proposed structure.

scholarly journals 3D printed low-loss THz waveguide based on Kagome photonic crystal structure

2016 ◽  
Vol 24 (20) ◽  
pp. 22454 ◽  
Author(s):  
Jing Yang ◽  
Jiayu Zhao ◽  
Cheng Gong ◽  
Haolin Tian ◽  
Lu Sun ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Photonic Crystal ◽  
Photonic Crystal Structure ◽  
Low Loss ◽  
3D Printed

Broadband six-way out-of-phase SIW power divider

2015 ◽  
Vol 8 (2) ◽  
pp. 165-170 ◽  
Author(s):  
Kaijun Song ◽  
Abdullahi Nura Ahmed ◽  
Bingkun Hu ◽  
Yu Zhu ◽  
Fulong Chen ◽  
...  
Keyword(s):  
Reasonable Agreement ◽  
Impedance Matching ◽  
The Other ◽  
Input Port ◽  
Power Divider ◽  
Substrate Integrated Waveguide ◽  
Low Loss ◽  
Size And Shape ◽  
Outer Conductor ◽  
Matching Transformer

A broadband six-way out-of-phase substrate-integrated waveguide (SIW) power divider was designed, analyzed, and fabricated for low loss and out of phase dividing applications. The SIW technology was used to realize the power divider; where it consists of a central dual-disc probe connected with coaxial outer-conductor impedance matching transformer and six SIW-to-microstrip transitions as output probes. Three of the SIW-to-microstrip transitions are located at the top plane, whereas the other three are at the bottom plane of the power divider to achieve the out-of-phase dividing functioning. These transitions are all the same in size and shape for symmetry reason. Good transmissions from coaxial input port to six-way SIW power divider were also achieved. There is a reasonable agreement between measured and simulated results.

scholarly journals Design of Tunable Equalizers Using Multilayered Half Mode Substrate Integrated Waveguide Structures Added Absorbing Pillars

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Shuxing Wang ◽  
Yongfei Wang ◽  
Dewei Zhang ◽  
Yi Zhang ◽  
Dongfang Zhou
Keyword(s):  
Multilayer Structure ◽  
Design Method ◽  
The Other ◽  
Mode Analysis ◽  
Substrate Integrated Waveguide ◽  
Low Loss ◽  
Resonant Cavities ◽  
Bottom Substrate ◽  
Compact Size ◽  
First Time

An equalizer based on multilayered half mode substrate integrated waveguide (HMSIW) structures with highQ-factor, low loss, and compact size is proposed for the first time. Resonant cavities distributing in the upper substrate and the bottom substrate, with the middle substrate layer which works as the transmission line together, constitute a multilayer structure. The design method and theoretical analysis are summarized first. The mode analysis, simulated results, and measured results are all provided. The measured results show a good performance and are in agreement with the simulated results, and the maximum attenuation slope reaches −16 dB over 12.5 GHz~14.5 GHz. With the use of absorbing pillars, the attenuation andQvalue can be tuned more easily than the other planar equalizers. Compared with the SIW equalizer, the size of this structure reduces by 50%. Furthermore, this structure is suitable for the miniaturization development of equalizers.

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