A novel resonant ground structure based on a cavity-backed DGS

Imseob Shin; Tae Hak Lee; Juseop Lee; Young Sik Kim

doi:10.1109/LMWC.2014.2309079

A novel resonant ground structure based on a cavity-backed DGS

Imseob Shin, Tae Hak Lee, Juseop Lee, Young Sik Kim

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

In this letter, a new resonant ground structure (RGS) based on a cavity-backed DGS is proposed. The proposed RGS is similar to a DGS and is modeled by a parallel RLC resonance circuit. Since the proposed RGS utilizes a substrate-filled metallic cavity (SFMC) underneath the DGS, it leads to no back-radiation and high quality factor. The frequency responses and structural parameters are analyzed and verified via simulation and measurement. The quality factor of the proposed RGS with a spiral-shaped defect is larger than that of the DGS with the same defect by a factor of 7.4.

Original language	English
Article number	6777365
Pages (from-to)	321-323
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	24
Issue number	5
DOIs	https://doi.org/10.1109/LMWC.2014.2309079
Publication status	Published - 2014 May

Keywords

Defected ground structure (DGS)
electromagnetic bandgap (EBG)
photonic bandgap (PBG)
resonant ground structure (RGS)

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/LMWC.2014.2309079

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abstract = "In this letter, a new resonant ground structure (RGS) based on a cavity-backed DGS is proposed. The proposed RGS is similar to a DGS and is modeled by a parallel RLC resonance circuit. Since the proposed RGS utilizes a substrate-filled metallic cavity (SFMC) underneath the DGS, it leads to no back-radiation and high quality factor. The frequency responses and structural parameters are analyzed and verified via simulation and measurement. The quality factor of the proposed RGS with a spiral-shaped defect is larger than that of the DGS with the same defect by a factor of 7.4.",

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AU - Lee, Juseop

AU - Kim, Young Sik

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AB - In this letter, a new resonant ground structure (RGS) based on a cavity-backed DGS is proposed. The proposed RGS is similar to a DGS and is modeled by a parallel RLC resonance circuit. Since the proposed RGS utilizes a substrate-filled metallic cavity (SFMC) underneath the DGS, it leads to no back-radiation and high quality factor. The frequency responses and structural parameters are analyzed and verified via simulation and measurement. The quality factor of the proposed RGS with a spiral-shaped defect is larger than that of the DGS with the same defect by a factor of 7.4.

KW - Defected ground structure (DGS)

KW - electromagnetic bandgap (EBG)

KW - photonic bandgap (PBG)

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A novel resonant ground structure based on a cavity-backed DGS

Abstract

Keywords

ASJC Scopus subject areas

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