Design of a Hemispherical Reconfigurable Frequency Selective Surface Using Water Channels

Son, Dong-Chan; Shin, Hokeun; Kim, Yoon Jae; Hong, Ic‐Pyo; Chun, Hye‐Yeong; Jung, Kim Hyun; Choo, Hosung; Park, Yong Bae

doi:10.1109/access.2018.2873580

Cited by 6 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among them, achieving narrow-band electromagnetic transparency becomes attractive for both fundamental electromagnetics and angular-independent spectral filters for 6G communication and battlefield electromagnetic environment. Most studies related to achieving narrow-band electromagnetic transparency employ Extraordinary Optical Transmission (EOT) [16]- [18], plasmonic nano-particles [19], [20], and others [21]- [23]. Both EOTs and surface plasmon resonance (SPR)-based transparency show either highly angle-dependent characteristics or a limited operation band (mainly to the visible wavelength) [24]- [26].…”

Section: Introductionmentioning

confidence: 99%

Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime

2022

View full text Add to dashboard Cite

Realizing electromagnetic transparency in the visible light regime and beyond is an important challenge in both fundamental electromagnetics and angular-independent spectral filters for 6G communication and military applications. A conventional way of achieving electromagnetic transparency is based on Surface Plasmon Resonances (SPRs) of symmetric metallic spherical or cylindrical structures. However, symmetric objects have a constraint on their shape tunability, limiting them to visible wavelength applications. In this work, we address the limitation by designing floating nano-chips with a broken symmetry using a cluster of silver ellipsoids. We combine Bohren and Huffman analytic solutions and particle swarm optimization to accelerate the discovery of the optimum ellipsoid designs. The optimized nano-chips demonstrate clear angle-independent transparency at the 1450-1500nm wavelength window. This result is validated in full-wave Maxwell's solution via three-dimensional finite-difference time-domain method. The proposed design method can be extended to electromagnetic applications that require a design and optimization of small objects (< λ/200) compared to their operating wavelength. INDEX TERMSFinite-difference time-domain (FDTD) method, particle swarm optimization (PSO), plasmon induced transparency.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime

2022

View full text Add to dashboard Cite

show abstract

“…Instead, a curved frequency selective surface (FSS), offering the tunability of the bandpass or bandstop functions over a relatively wider bandwidth, can be inserted into radomes to reduce RCS and obtain the stealth performance. Various configurations of FSS radomeenclosed antennas were examined [20][21][22][23][24][25][26][27][28][29][30]. For instance, the transmission characteristics of FSS radomes were analyzed by using pole residue matching [20] and ray tracing technique [21][22][23], a hemispherical reconfigurable FSS radome with water channels was studied [24], and the IPD characteristics of planar FSS radomes were intensively discussed in [25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Transmission Loss and Boresight Error of a Curved FSS Radome-Enclosed Antenna

Shin

Yoon

et al. 2021

IEEE Access

Self Cite

View full text Add to dashboard Cite

In this paper, we numerically study a curved frequency selective surface (FSS) radome, which encloses a waveguide slot array antenna operating at 10GHz, using the ray tracing technique and flat model. The transmission loss (TL) and boresight error (BSE) are calculated for various degrees of freedom, such as elevation and azimuth angular scanning or gimbal systems of array antennas to examine the electromagnetic properties of the curved FSS radome. Our calculations of radiation patterns, TL, and BSE for a multi-layered dielectric radome are compared with those of a commercial EM solver for validation. Importantly, we quantify phase distortions, incurred by the curved FSS radome, using the insertion phase delay (IPD) of transmitted fields on the radome surface. Thereby, we demonstrate that the BSEs strongly depend on (1) the spatial distribution of phase distortions on the radome surface and (2) their average level. The present method is highly suited for analyzing radomes with arbitrary surface patterns inserted.INDEX TERMS Frequency selective surface (FSS), FSS radome, insertion phase delay (IPD), phase distortion, boresight error (BSE), ray tracing technique

show abstract

Water-based frequency selective surface for green electronics applications

Valdez-Garcia

Overa-Cervantes

Kataria

et al. 2020

Journal of Electromagnetic Waves and Applications

View full text Add to dashboard Cite

Design of a Hemispherical Reconfigurable Frequency Selective Surface Using Water Channels

Cited by 6 publications

References 24 publications

Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime

Numerical Demonstration of Angle-Independent Electromagnetic Transparency in Short-Wavelength Infrared Regime

Analysis of Transmission Loss and Boresight Error of a Curved FSS Radome-Enclosed Antenna

Water-based frequency selective surface for green electronics applications

Contact Info

Product

Resources

About