Full Text:   <342>

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On-line Access: 2023-06-21

Received: 2022-10-12

Revision Accepted: 2023-09-21

Crosschecked: 2023-04-18

Cited: 0

Clicked: 701

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Chun GENG

https://orcid.org/0009-0001-7914-1476

Jiwei LIAN

https://orcid.org/0000-0002-0497-8765

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Frontiers of Information Technology & Electronic Engineering  2023 Vol.24 No.9 P.1366-1374

http://doi.org/10.1631/FITEE.2200454


Compact millimeter-wave air-filled substrate-integrated waveguide crossover employing homogeneous cylindrical lens


Author(s):  Chun GENG, Jiwei LIAN, Dazhi DING

Affiliation(s):  Qian Xuesen College, Nanjing University of Science and Technology, Nanjing 210094, China; more

Corresponding email(s):   lianjiwei@njust.edu.cn

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Chun GENG, Jiwei LIAN, Dazhi DING. Compact millimeter-wave air-filled substrate-integrated waveguide crossover employing homogeneous cylindrical lens[J]. Frontiers of Information Technology & Electronic Engineering, 2023, 24(9): 1366-1374.

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Abstract: 
We propose a new method to design crossovers by employing an embedded homogeneous cylindrical lens (HCL). Compared with traditional crossover designs, this strategy introduces an HCL within the air-filled substrate-integrated waveguide (SIW) crossover cavity to direct the incident waves in the desired direction. According to ray-tracing analysis, the added HCL can efficiently concentrate the electromagnetic wave propagating from the input to the output without increasing the fabrication complexity or footprint. The operating mechanism of this method is elaborated in detail, and is further verified by E-field distributions. Using the air-filled SIW technology, two-, three-, and four-channel crossovers operating at the millimeter-wave are developed and fabricated to demonstrate the practical feasibility of the proposed method. Some transitional structures are designed for experimental purposes. It is found that the simulated fractional bandwidths (FBWs) related to two-, three-, and four-channel air-filled SIW crossovers are 33%, 14%, and 10%, respectively; the dimensions of their core areas are 0.74λ×0.74λ, 1.43λ×1.43λ, and 1.90λ×1.90λ, respectively. Comparisons between our method and similar approaches in the literature illustrate the advantages of our method.

基于均匀柱面透镜的紧凑型毫米波空气填充基片集成波导交叉电桥

耿淳1,3,连继伟2,3,丁大志2
1南京理工大学钱学森学院,中国南京市,210094
2南京理工大学微电子学院(集成电路学院),中国南京市,210094
3东南大学毫米波国家重点实验室,中国南京市,210096
摘要:提出一种利用嵌入式均匀柱面透镜设计交叉电桥的新方法。与传统交叉电桥设计相比,该方法在空气填充的基片集成波导交叉腔内引入一个均匀柱面透镜,将入射波导向指定方向。根据射线追踪法,引入的均匀柱面透镜可以在不提高加工复杂度和面积的前提下,有效束缚从输入端传输到输出端的电磁波。详细阐述了该方法的工作机理,并通过电场分布进一步予以验证。利用空气填充基片集成波导技术,研制了工作在毫米波频段的二、三、四通道交叉电桥,验证了所提方法的可行性。同时引入过渡结构,便于实验测量。研究发现二、三、四通道空气填充基片集成波导交叉电桥仿真带宽分别为33%、14%和10%,其核心尺寸分别为0.74λ×0.74λ、1.43λ×1.43λ和1.90λ×1.90λ。最后,为进一步阐述本文方法的优势,将其与公开文献中的类似方法进行了比较。

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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