Towards 76-81 GHz Scalable Phase Shifting by Folded Dual-strip Shielded Coplanar Waveguide with Liquid Crystals

Annals of Emerging Technologies in Computing

article

Li, Jinfeng¹ 

[1] Imperial College London

关键词: computational electromagnetics;    liquid crystal;    meandered coplanar waveguide;    passive microwave components;    phase shifter;    shielded coplanar waveguide;    wireless communication;    77 GHz;   

DOI  :  10.33166/AETiC.2021.04.002

学科分类：电子与电气工程

来源: International Association for Educators and Researchers (IAER)

【 摘 要 】

Unconventional folded shielded coplanar waveguide (FS-CPW) has yet to be fully investigated for tunable dielectrics-based applications. This work formulates designs of FS-CPW based on liquid crystals (LC) for electrically controlled 0-360˚ phase shifters, featuring a minimally redundant approach for reducing the LC volume and hence the costs for mass production. The design exhibits a few conceptual features that make it stand apart from others, noteworthy, the dual-strip structure with a simplified enclosure engraved that enables LC volume sharing between adjacent core lines. Insertion loss reduction by 0.77 dB and LC volume reduction by 1.62% per device are reported at 77 GHz, as compared with those of the conventional single-strip configuration. Based on the proof-of-concept results obtained for the novel dual-strip FS-CPW proposed, this work provides a springboard for follow-up investible propositions that will underpin the development of a phased array demonstrator.

【 授权许可】

CC BY