Journal ArticleDOI
A Compact Frequency Selective Surface With Stable Response for WLAN Applications
Rajesh Natarajan,Malathi Kanagasabai,Sanjay Baisakhiya,Ramprabhu Sivasamy,Sandeep Kumar Palaniswamy,Jayaram Kizhekke Pakkathillam +5 more
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TLDR
In this paper, a compact frequency selective surface (FSS) composed of a modified swastika unit cell having the smallest dimension of 7 × 7 mm2 is proposed, aimed at the rejection of 5 GHz WLAN band.Abstract:
In this letter, a compact frequency selective surface (FSS) composed of a modified swastika unit cell having the smallest dimension of 7 × 7 mm2 is proposed. The design is aimed at the rejection of 5-GHz WLAN band. The unit-cell geometry resembles the shape of crossed dipoles to achieve compactness. The proposed FSS provides 400 MHz bandwidth with 20 dB insertion loss. The proposed design holds a stable response for TE and TM modes of polarization as well as oblique incidence angles, thus ensuring polarization and angular independent operation. The simulated results are validated with measured results obtained from the fabricated FSS.read more
Citations
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Journal ArticleDOI
Fluidically Reconfigurable Multifunctional Frequency-Selective Surface With Miniaturization Characteristic
Saptarshi Ghosh,Sungjoon Lim +1 more
TL;DR: In this article, a liquid-metal-filled microchannels engraved in an elastomeric substrate are used to construct a reconfigurable frequency-selective surface (FSS).
Journal ArticleDOI
Easily Optimizable Dual-Band Frequency-Selective Surface Design
Bora Doken,Mesut Kartal +1 more
TL;DR: A new periodic element geometry design is presented, which stops incoming 2.4 and 5.8 GHz industrial, scientific, and medical radio signals, and a new simple design technique is presented to be able to optimize each resonance frequency independent from the other.
Journal ArticleDOI
A Multifunctional Reconfigurable Frequency-Selective Surface Using Liquid-Metal Alloy
Saptarshi Ghosh,Sungjoon Lim +1 more
TL;DR: In this article, a miniaturized reconfigurable frequency-selective surface (FSS) incorporating a liquid-metal alloy injected into an elastomer was proposed, where the liquid metal [eutectic gallium indium (EGaIn)] adopts the geometry of the microfluidic channels.
Journal ArticleDOI
Ultra-Wide-Angle Bandpass Frequency Selective Surface
TL;DR: In this article, a bandpass frequency-selective surface (FSS) with a stable angular response is proposed, and the performance of the structure is closely related to its tangential and normal components of permittivity and permeability.
Journal ArticleDOI
Thin Bandstop Frequency-Selective Structures Based on Loop Resonator
TL;DR: In this article, the authors proposed circular and elliptical loop resonators as the unit cell of a 3D frequency-selective structure aiming to reduce the structure thickness by 80% compared to previous structures.
References
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Book
Frequency Selective Surfaces: Theory and Design
TL;DR: In this article, the authors present a comparison of band-pass and Dichroic filter designs for one and two-dimensional periodic structures, and present an overview of the current state-of-the-art.
Journal ArticleDOI
A Frequency Selective Surface With Miniaturized Elements
Kamal Sarabandi,Nader Behdad +1 more
TL;DR: In this paper, a bandpass frequency selective surface (FSS) is proposed, which is made up of periodic array of metallic patches separated by thin air-gaps backed by a wire mesh having the same periodicity.
Journal ArticleDOI
A Miniaturized Dual-Band Frequency Selective Surface (FSS) With Closed Loop and Its Complementary Pattern
TL;DR: In this paper, a single-layer substrate frequency selective surface (FSS) made of miniaturized elements is proposed, with two controllable passbands obtained, each FSS element consists of a loop wire on the top metal layer and its complementary pattern etched at the bottom one, which provides two transmission poles separated by a transmission zero.
Journal ArticleDOI
A Novel Stable Miniaturized Frequency Selective Surface
TL;DR: In this paper, a novel miniaturized periodic element for constructing a bandpass frequency selective surface (FSS) is proposed, which has better miniaturization performance with the dimension of a unit cell only 0.061 λ × 0.61, where λ represents the wavelength of the resonant frequency.
Journal ArticleDOI
A Novel Miniaturized-Element Frequency Selective Surface Having a Stable Resonance
Cheng-Nan Chiu,Keng-Ping Chang +1 more
TL;DR: In this article, a miniaturized periodic element was proposed for constructing a band-pass frequency selective surface (FSS) that demonstrates an excellent resonance stability performance with respect to different polarizations and incidence angles.