Compact Slow-Wave Half-Mode Substrate Integrated Waveguide With Spoof Surface Plasmon Polaritons for Miniaturized Microwave Circuits

Yuxi Liu; Yiming Zhang; Hui Liu; Erik Forsberg; Yuan Zhang; Sailing He

doi:10.1109/ACCESS.2024.3425834

IEEE Access (Jan 2024)

Compact Slow-Wave Half-Mode Substrate Integrated Waveguide With Spoof Surface Plasmon Polaritons for Miniaturized Microwave Circuits

Yuxi Liu,
Yiming Zhang,
Hui Liu,
Erik Forsberg,
Yuan Zhang,
Sailing He

Affiliations

Yuxi Liu: ORCiD; RF Circuit and Microwave System Laboratory, Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, China
Yiming Zhang: ORCiD; RF Circuit and Microwave System Laboratory, Center for Optical and Electromagnetic Research, National Engineering Research Center for Optical Instruments, Zhejiang University, Hangzhou, China
Hui Liu: ORCiD; RF Circuit and Microwave System Laboratory, Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, China
Erik Forsberg: ORCiD; Center for Optical and Electromagnetic Research, College of Optical Science and Engineering, Zhejiang University, Hangzhou, China
Yuan Zhang: RF Circuit and Microwave System Laboratory, Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, China
Sailing He: ORCiD; RF Circuit and Microwave System Laboratory, Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, China

DOI: https://doi.org/10.1109/ACCESS.2024.3425834
Journal volume & issue: Vol. 12
pp. 99921 – 99935

Abstract

Read online

A slow-wave half-mode substrate integrated waveguide with a spoof surface plasmon polariton (SW-HMSIW-SSPP) transmission line structure is proposed, analyzed, and demonstrated. Results show longitudinal and lateral size reductions of more than 80% and 73%, respectively, as compared with an equivalent SIW at the same cutoff frequency while maintaining a low attenuation constant of 0.02 dB/mm. By altering the geometric parameters of the SW-HMSIW-SSPP the dispersion curve can be tailored. The dispersion and electromagnetic (EM) field distribution characteristics of the proposed SW-HMSIW-SSPP unit cell and overall structure are analyzed by HFSS simulations and an equivalent circuit, and pertinent performance parameters are compared to those of SW-HMSIW and HMSIW-SSPP structures. A proof-of-concept PCB SW-HMSIW-SSPP sample was fabricated, and measurement results showing a band-pass of 4.8-11.5 GHz are found consistent with simulation results. The SW-HMSIW-SSPP structure has applications in the design of miniaturized microwave circuits.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

About the journal

Abstract

Keywords