Reconfigurable frequency selective surface for beam‐switching applications

Bouslama, Moufida; Traii, Moubarek; Denidni, Tayeb A.; Gharsallah, Ali

doi:10.1049/iet-map.2016.0080

Cited by 17 publications

(10 citation statements)

References 19 publications

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“…Frequency-selective surfaces (FSSs) have been widely investigated in recent years, both in passive (FSS) and reconfigurable FSS (RFSS) variations. Intelligent walls [1][2][3][4], radomes [5,6], and reconfigurable antennas [7][8][9] are some examples of their applications. Essentially, an FSS consists of basic elements etched on a dielectric substrate, arranged in a planar periodic structure, providing filtering properties.…”

Section: Introductionmentioning

confidence: 99%

“…Mechanically tunable FSSs can be implemented by exploiting mechanical modifications such as stretching, folding, shifting or rotating the FSS elements [11][12][13]. Insertion of discrete electronic components includes PIN diodes [7][8][9], microelectromechanical (MEMS) switches [14,15], and varactors [16,17]. When PIN diodes are used, commonly only the reverse and the forward regions, OFF and ON states, respectively, are taken into account.…”

Section: Introductionmentioning

confidence: 99%

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Design of reconfigurable frequency‐selective surfaces including the PIN diode threshold region

Mamedes

Neto

Silva

et al. 2018

IET Microwaves, Antennas & Propagation

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Reconfigurable frequency-selective surfaces (RFSSs) are of significant interest in applications, such as secure communication systems or tunable radomes, to improve indoor communication and smart antennas. In order to change the frequency-selective surface (FSS) characteristics, and therefore its frequency response, conventional methods include loading with active semiconductor devices such as varactors, PIN diodes, Schottky diodes and radio-frequency microelectromechanical system. Another possibility is the use of mechanical adjusts, such as spring resonators or mechanical rotation. When PIN diodes are used, commonly only the reverse and forward regions, OFF and ON states, respectively, are considered. In this study, the implementation of an RFSS is described, using PIN diodes as active components. The RFSS is based on the fourarms star geometry, and initial design equations and procedures are presented. Numerical and measured results are shown for different project stages, with a very good agreement. In addition to obtaining two distinct resonant frequencies, due to the OFF and ON states, a third situation is included, considering the PIN diode threshold region when the FSS becomes practically transparent, which is an interesting feature with potential applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of reconfigurable frequency‐selective surfaces including the PIN diode threshold region

Mamedes

Neto

Silva

et al. 2018

IET Microwaves, Antennas & Propagation

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“…Frequency selective surface (FSS) applications have recently dominated not only the fields of microwave and terahertz regime shielding, radar cross-section reduction, THz sensing, detection, and as absorbers, but also in several other applications. These include radio astronomy [1], energy harvesting applications [2], energy-efficient glass [3], microwave lenses [4], beam switching applications [5], ultrawideband radio frequency identification tags [6], wireless charging pads for portable electronics [7], and pulsed high power microwave applications [8,9]. Conventional FSS is of limited use because of its narrow bandwidth and unstable characteristics.…”

Section: Introductionmentioning

confidence: 99%

An Ultra-Thin Non-Resonant Class of Frequency Selective Surface for X Band Applications

Shaik¹,

Shambavi²

2020

PIER M

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A new miniaturized and ultra-thin non-resonant element-class of convoluted frequency selective surface (FSS) structure with reduced overall thickness is presented and empirically verified. The proposed FSS structure, which could be capable of providing a first order narrow band pass response for X band applications, is made up of three metallic layers separated from one another by two dielectric substrates. The outer layers are made up of convoluted inductive grids, and the inner layer is a nonresonant structure composed of convoluted square slot array. A first-order band pass response FSS with a centre frequency of 10.5 GHz and fast roll-off characteristics is presented. The overall element thickness of the proposed FSS is λ 56 , which is smaller than previously proposed miniaturized structures. The comparison between all patch layers with the proposed structure which is not an all patch layers is explicated in detail with its convoluting effects. The validity of this design procedure is verified with an equivalent circuit model, and a sample is fabricated and measurement done using a WR 90 waveguide setting for experimental verification.

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“…When incorporated with some electronic components such as pin diodes [3][4][5][6][7], varactor diodes [8] and microelectromechanical systems switches [9,10], its resonance properties can be changed electronically and has been used in beam-switching applications. In [3][4][5]11], similar FSS screens have been used as cylindrically shaped partially reflective surface around omnidirectional source antenna for radiation beam switching. A nimble radiation-pattern structure and a wideband sweeping beam antenna using a hybrid structure have been described in [3,4], respectively.…”

Section: Introductionmentioning

confidence: 99%

Beam‐switching millimetre‐wave antenna using cantilever‐based FSSs

Kesavan

Mantash

Denidni

2018

IET Microwaves, Antennas & Propagation

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A beam‐switching antenna for millimetre‐wave applications at 30 GHz is presented in this study. The radiation reconfigurability for a cylindrical dielectric resonator antenna (DRA) is obtained by using a cantilever‐enabled frequency selective surface (FSS). The proposed cantilever‐enabled FSS provides reconfigurable bandpass and band‐stop performance with good isolation between them. The investigation of designed FSS is performed using electromagnetic simulation and an array of the proposed FSS unit cell is fabricated and measured using the free‐space measurement method, which shows a good agreement with the simulation results. Finally, six panels of the 1 × 5 array of the proposed reconfigurable FSS are arranged in a hexagonal configuration around a cylindrical DRA to obtain a reconfigurable radiation pattern in the azimuth plane. A prototype of the proposed radiation reconfigurable DRA is fabricated and the switching radiation patterns are measured at 30 GHz.

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Reconfigurable frequency selective surface for beam‐switching applications

Cited by 17 publications

References 19 publications

Design of reconfigurable frequency‐selective surfaces including the PIN diode threshold region

Design of reconfigurable frequency‐selective surfaces including the PIN diode threshold region

An Ultra-Thin Non-Resonant Class of Frequency Selective Surface for X Band Applications

Beam‐switching millimetre‐wave antenna using cantilever‐based FSSs

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