Application of frequency selective surfaces for inspection of layered structures

Pieper, Dustin F.; Donnell, Kristen M.

doi:10.1109/i2mtc.2015.7151444

Cited by 17 publications

(4 citation statements)

References 14 publications

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“…(20) The square loop dimensions can be extracted and optimized using equations (18) and (20). The abovementioned analysis is provided for TE mode and the same expressions are also valid for TM mode due to polarization independent behavior property of square loop FSS.…”

Section: Superstrate Dslfss Geometrymentioning

confidence: 99%

“…High frequency spatial filters [9]- [10], reflectors [8], lenses [11], radomes [12]- [13], and absorbers [14]- [17] are some of the applications in which FSS has been used throughout the past. Recently with an increase in demand for sensors, FSS are often used for systemic health monitoring (SHM) purposes [18]- [19]. Many structures consisting of a compact single layer FSS with metallic screens while 2.5D Jerusalem cross FSS geometry for applications in 5G radomes is presented [20]- [21].…”

Section: Introductionmentioning

confidence: 99%

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A Compact High Gain Printed Antenna with Frequency Selective Surface for 5G Wideband Applications

Kapoor

Mishra

Kumar

2021

AEM

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In this article, a frequency selective surface (FSS) based compact wideband printed antenna radiator with improved gain and directivity is proposed for sub-6 GHz 5G wireless networking applications. Due to their inherent property of possessing spatial filtering characteristics, FSSs are attracting the interest of researchers. An approach for increasing the gain and the directivity by integrating a band pass FSS on a compact built patch antenna radiator is proposed here. The architecture equations for designing the band pass FSS using double square loop geometry are defined. The printed patch antenna radiator (PAR) and a double square loop frequency selective surface (DSLFSS) are designed and integrated. The simulation results are verified using the results from the measuring setup. The output response is giving a fractional bandwith of 19.14% with 5.5 dBi gain and 6.2 dBi of directivity and thus makes it the good choice for 5G applications.

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Section: Superstrate Dslfss Geometrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Compact High Gain Printed Antenna with Frequency Selective Surface for 5G Wideband Applications

Kapoor

Mishra

Kumar

2021

AEM

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“…The filtering properties of FSS enable exploitation of the electromagnetic responses, i.e., reflection and transmission properties, resonance frequency and Q-factor which depends on the unit cell geometry and the dielectric material characteristics. Alterations of parameters such as layering the dielectric structure [3] or composition [4] affect the response of the FSS. These FSS filtering properties enable its application in advanced antenna systems and technology e.g., offset reflector antennas [5], absorbers [6], radomes [7], Butler matrix [8].…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Frequency Selective Surface Displacement Sensor Using Complementary Dielectrics

et al. 2023

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A novel displacement sensor using a frequency selective surface (FSS) with a removable substrate complement is proposed. The new concept sensor is based on modifying the effective permittivity of the FSS when the substrate complement is gradually withdrawn. The change in the effective permittivity produces a change in capacitance, and thus in the resonant frequency. The FSS consists of an array of square loops elements in a square lattice. A 3D convoluted version of the FSS sensor improves the angle of incident behavior and increases the displacement range. The dielectric layers of the 3D FSS sensor were 3D printed while the metal layers were painted using silver conductive paint. The transmission response, S21, has been employed as the validation parameter. The proposed sensor operates in a frequency range between 2.0 GHz and 2.8 GHz and has achieved a 0.052 GHz/mm sensitivity and 12 mm dynamic range and has a dimension of 207mm by 207mm. The sensor is passive, compact, inexpensive, and easy to operate. The envisaged application is the wireless detection of structural movement, which can be critical in civil structures such as bridges or buildings or earthquake monitoring.

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“…This type of sensor can be directly integrated into a structure. However, considering the complexity and high cost to support equipment, both of these sensors are not the [6][7][8][9][10][11]. The structure of an FSS is made from an array of metallic elements that provides a filtering response to pass or reject electromagnetic waves at a particular band of frequency.…”

Section: Introductionmentioning

confidence: 99%

Passive sensor frequency selective surface for structural health monitoring

Mustafa

Azemi

Jamlos

et al. 2019

IJEECS

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Structural health monitoring (SHM) technologies have attained attention to monitor civil structures. SHM sensor systems have been used in various civil structures such as bridges, buildings, tunnels and so on. However the previous sensor for SHM is wired and encounter with problem to cover large areas. Therefore, wireless sensor was introduced for SHM to reduce network connecting problem. Wireless sensors for Structural Health monitoring are new technology and have many advantages to overcome the drawback of conventional and wired sensor. This project proposed passive wireless SHM sensor using frequency selective surface (FSS) as an alternative to conventional sensors. The electromagnetic wave characteristic of FSS will change by geometrical changes of FSS due to mechanical strain or structural failure. The changes feature is used as a sensing function without any connecting wires. Two type of design which are circular ring and square loop along with the transmission and reflection characteristics of SHM using FSS were discussed in this project. A simulation process has shown that incident angle characteristics can be use as a data for SHM application.

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Application of frequency selective surfaces for inspection of layered structures

Cited by 17 publications

References 14 publications

A Compact High Gain Printed Antenna with Frequency Selective Surface for 5G Wideband Applications

A Compact High Gain Printed Antenna with Frequency Selective Surface for 5G Wideband Applications

Three-Dimensional Frequency Selective Surface Displacement Sensor Using Complementary Dielectrics

Passive sensor frequency selective surface for structural health monitoring

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