Novel Tunable Bandstop Defected Ground Structure with Vanadium Dioxide
Date of Award
5-5-2024
Degree Name
M.S. in Electrical Engineering
Department
Department of Electrical and Computer Engineering
Advisor/Chair
Guru Subramanyam
Abstract
With the rapid development of 5G technology and the explosive growth of the mobile industry, existing technologies have become increasingly mature. As a result, researchers and manufacturers are gradually focusing on designing more compact and cost-effective devices. The use of tunable devices is one of the promising technologies to achieve a compact size with few extra costs. In this thesis, a novel Sprout-Shaped Defected Ground Structure(DGS) and its tunable modification with thin film vanadium dioxide(VO2) are proposed. It has the advantage of compact size, clear in-band performance, and frequency tunability. The proposed single-stage structure provides -13.5 dB rejection at 4.008 GHz and has no harmonic before 10 GHz. With two-stage cascading, the rejection can be enhanced to -50.12 dB. This study also represents the tunable potential of the proposed DGS structure after modification, which can be tuned from the center frequency of 4.056 GHz to 5.987 GHz.
Keywords
Defected Ground Structure, Tunable DGS, Vanadium Dioxide, Bandstop Resonator
Rights Statement
Copyright 2024, author
Recommended Citation
Deng, Xiadong, "Novel Tunable Bandstop Defected Ground Structure with Vanadium Dioxide" (2024). Graduate Theses and Dissertations. 7577.
https://ecommons.udayton.edu/graduate_theses/7577
