Compact Design Method for Planar Antennas with Defected Ground Structures

Won Jun Lee; Won-Sang Yoon; Dal Ahn; Sang-Min Han

doi:10.3390/electronics12102226

journal article Open Access May 14, 2023

Compact Design Method for Planar Antennas with Defected Ground Structures

Won Jun Lee Won-Sang Yoon Dal Ahn

Sang-Min Han

Electronics Vol. 12 No. 10 pp. 2226 · MDPI AG

View at Publisher Save 10.3390/electronics12102226

Abstract

In this paper, a compact antenna design method is proposed for microstrip patch antennas using a double-layered defected ground structure (DGS) configuration. While a conventional single-layered defected ground structure yields a lower resonant frequency and Q-factor, a smaller circuit size can be achieved using an additional substrate with a higher dielectric constant. The size reduction obtained from the additional resonant LC elements is analytically explained using the equivalent circuit model. The characteristics of the additional substrates are investigated for various dielectric constants and thicknesses. From the experimental results, the proposed design method leads to a total size reduction of up to 51.7% and a miniaturized design for planar antennas with ground apertures. The proposed design method can be applied to various antenna designs with any DGS pattern. Furthermore, the size reduction method can maintain the structure of the resonant patch element and its radiation characteristics. Therefore, the proposed method is applicable to the design of microwave devices on microstrip-based configurations.

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Metrics

11

Citations

27

References

Details

Published: May 14, 2023
Vol/Issue: 12(10)
Pages: 2226
License: View

Authors

W

Won Jun Lee

Department of ICT Convergence, Soonchunhyang University, Asan 31538, Chungnam, Republic of Korea

W

Won-Sang Yoon

Department of Electronic Engineering, Hoseo University, Asan 31499, Chungnam, Republic of Korea

D

Dal Ahn

Department of ICT Convergence, Soonchunhyang University, Asan 31538, Chungnam, Republic of Korea

S

Sang-Min Han

Department of ICT Convergence, Soonchunhyang University, Asan 31538, Chungnam, Republic of Korea

Funding

Soonchunhyang University Research Fund Award: IITP-2023-2020-0-01832

MSIT, Korea Award: IITP-2023-2020-0-01832

Regional Innovation Strategy (RIS) Award: IITP-2023-2020-0-01832

Cite This Article

Won Jun Lee, Won-Sang Yoon, Dal Ahn, et al. (2023). Compact Design Method for Planar Antennas with Defected Ground Structures. Electronics, 12(10), 2226. https://doi.org/10.3390/electronics12102226

Compact Design Method for Planar Antennas with Defected Ground Structures

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