Enhanced bandwidth uniplanar compact electromagnetic bandgap structure with coplanar meander line inductance

Liu, T.; Cao, Xiangyu; Ma, Jiajun; Wen, Xiaodong

doi:10.1049/el:20083600

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…The beneficial characteristics include the blocking, absorbing, and bending of EM waves for a certain range of frequencies, which is not possible using conventional materials. These metasurface functionalities classify metasurface as an artificial magnetic conductor (AMC) [14][15][16], high impedance surface (HIS) [17,18], and electromagnetic band gap (EBG) [19,20]. AMC and HIS possess the same type of characteristics, which are perfect magnetic conductor (PMC) behaviors, whereas the EBG possesses not only PMC-like behavior but also suppresses the surface wave flowing on it over a certain range of frequencies known as band gap.…”

Section: Introductionmentioning

confidence: 99%

Performance Improvement of Antenna Using Metasurface: An Overview

Naik¹,

Sahu²,

Ekka³

et al. 2023

PIER B

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This paper presents an in-depth review of the performance improvement of antennas using metasurface. Metasurface is a periodic arrangement of perfect electric conductors (PECs) on a metalbacked dielectric substrate that do not exist in nature and are able to manipulate the behavior of electromagnetic (EM) waves incident on it. The manipulations of EM waves improve the performances in terms of impedance bandwidth, gain, size, specific absorption rate (SAR), radar-cross-section (RCS), and polarization conversions. Consequently, numerous recent works on metasurface-inspired antenna design and their theoretical perspectives on performance enhancements are discussed. By adopting the discussed theories, novel metasurfaces are developed and proposed that analyze impedance-bandwidth enhancement, gain enhancement, and SAR reduction. For designing the metasurfaces, initially a conventional rectangular unit cell (CRUC) is theoretically developed using transmission line model at 2.45 GHz. Following that, the CRUC-based metasurface is incorporated with a monopole antenna, which enhanced the impedance-bandwidth from 140 MHz to 320 MHz and the gain from 2.5 dB to 7.4 dB. On the body, the presence of the metasurface retains all the performances as free space, with a reduced 1 g SAR of 0.034 and 10 g SAR of 0.024 W/kg.

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Section: Introductionmentioning

confidence: 99%

Performance Improvement of Antenna Using Metasurface: An Overview

Naik¹,

Sahu²,

Ekka³

et al. 2023

PIER B

View full text Add to dashboard Cite

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Fractal EBG structure for shielding and reducing the mutual coupling in microstrip patch antenna array

Naderi

Zarrabi

Jafari

et al. 2018

AEU - International Journal of Electronics and Communications

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Meandered UC-EBG structure for a reduction of the mutual coupling in a patch antenna array

Trinh-Van

Hwang

2012

IEICE Electron. Express

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A meandered uniplanar compact electromagnetic bandgap structure is proposed. Meandered microstrip lines between adjacent cells are used to increase the equivalent inductance. As a result, the dimension of the proposed EBG structure is more compact and its frequency band-gap is wider than that of the conventional uniplanar EBG structure. Two patch arrays with and without an EBG structure were designed, fabricated, and tested to validate the performance of the proposed EBG structure. The measured results demonstrated that a mutual coupling reduction of 4 dB is achievable in a patch array with the proposed EBG structure.

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Enhanced bandwidth uniplanar compact electromagnetic bandgap structure with coplanar meander line inductance

Cited by 3 publications

References 9 publications

Performance Improvement of Antenna Using Metasurface: An Overview

Performance Improvement of Antenna Using Metasurface: An Overview

Fractal EBG structure for shielding and reducing the mutual coupling in microstrip patch antenna array

Meandered UC-EBG structure for a reduction of the mutual coupling in a patch antenna array

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