Polarisation independent split ring frequency selective surface

Zabri, Siti Normi; Cahill, R.; Schuchinsky, Alexander

doi:10.1049/el.2012.4428

Cited by 12 publications

(7 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, thin metal sheets with aperture elements with the shapes shown in Fig. 12 Recently, new geometries have been used as elements of FSS arrays, including slotted patches [17], fractals [18], combination of similar and dissimilar parallel coupled [19] and broadside-coupled elements [20], [21], split ring patches [22], and paper-based substrate [23]. 240 chosen shape of the FSS array element is based on the Oxalis triangularis plant's leaf which has three symmetry axes with leaves that looks like triangles, as shown in Fig.…”

Section: Journal Ofmentioning

confidence: 99%

A New Conductive Ink for Microstrip Antenna and Bioinspired FSS Designs on Glass and Fiberglass Substrates

Mesquita

D’Assunção

Oliveira

et al. 2019

J. Microw. Optoelectron. Electromagn. Appl.

View full text Add to dashboard Cite

This paper describes an investigation of the possibility of using a new conductive ink, instead of copper clad laminates, in the manufacturing of microstrip patch antennas on glass and fiberglass substrates and of bioinspired frequency selective surfaces (FSSs) on fiberglass substrates for wireless communication systems. The new conductive ink is developed using synthesized nitrocellulose which, in ethyl acetate solution, works as a bonding agent and carrier for the formation of a conductive film. The load used in the fabrication process is silver metallic powder. Simulation and analysis are performed using Ansoft Designer and HFSS softwares. Microstrip antenna and FSS prototypes are fabricated and measured for comparison purpose. An agreement is observed between simulation and measurements results. Index Terms-Conductive ink, FSS, microstrip antenna, nitrocellulose, silver ink. I. INTRODUCTION The development of circuit technology for wireless communication systems is requiring the design of planar, compact, flexible, and reconfigurable structures. This demand applies to the development of new antennas, frequency selective surfaces (FSSs), materials, and fabrication techniques [1]. In order to meet these requirements, planar antenna and FSS structures need to be more versatile in their shapes and applications [1]. In the last decade, several works have been carried out with the use of conductive ink printing technology [2]-[5], aiming to reduce waste and cost of tools to accelerate the production process and to enable the realization of complex designs. This flexibility allows the fabrication of complex components and significantly reduces the manufacturing process of RF circuits for wireless communication systems. Ref. [2] proposes the use of inkjet printing of ultra-wideband (UWB) antennas on low-cost acrylonitrile butadiene-styrene/polycarbonate (ABS/PC) thermoplastic substrates which present good mechanical and thermal properties. The ink used is 40% by weight of silver nanoparticles from Sun Chemicals (Ref 5714). Simulation and measurement results are in good agreement. A low cost and an environmentally friendly inkjet printing technique on a paper substrate is presented

show abstract

Section: Journal Ofmentioning

confidence: 99%

A New Conductive Ink for Microstrip Antenna and Bioinspired FSS Designs on Glass and Fiberglass Substrates

Mesquita

D’Assunção

Oliveira

et al. 2019

J. Microw. Optoelectron. Electromagn. Appl.

View full text Add to dashboard Cite

show abstract

“…In Reference , the transmittance characteristic of an FSS was designed to produce coincident spectral responses with high levels of cross‐polar discrimination for TE and TM polarizations at oblique incidence angles (45°). Two nearly separated arrays of printed rings were used in Reference to achieve autonomous control of the resonances in each polarization, and the accuracy of this design was validated by experimental results in X‐band. In Reference , an isotropic FSS was designed to present nearly identical operation under different incident angles and polarizations.…”

Section: Introductionmentioning

confidence: 99%

Design and demonstration of a tri‐band frequency selective surface for space applications in X, K, and Ka bands

Abdollahvand

Forooraghi

Encinar

et al. 2020

Micro & Optical Tech Letters

View full text Add to dashboard Cite

A novel tri‐band frequency selective surface (FSS) is proposed for space antenna systems in the X, K, and Ka bands. The FSS structure is based on a two‐layer configuration, where the unit‐cell elements at each layer consist of two pairs of rectangular‐shaped dipoles and a square ring. The FSS has been designed to be transmissive at 11.5 GHz (X band) and totally reflective at 20 GHz (K band) and 30 GHz (Ka band). The reflection losses in K and Ka bands are less than 0.1 dB for incidence angles varying from 0° to 45°. Also, the transmission losses in X band are less than 0.5 dB for incidence angles of up to 30°. A 30‐cm prototype of the proposed two‐layer FSS has been fabricated and tested. Both simulation and measurement results show a good agreement and a satisfactory performance in the three operating bands.

show abstract

“…These structures are composed of nested short‐circuited ( λ and λ /2 mode) annular slots which yield identical resonant frequencies in the two field directions, but the transmission bandwidth in the TM plane is always significantly narrower. The authors have demonstrated that this performance limitation can be removed in reflection mode, by printing two different ( λ mode) split ring arrays on the opposite sides of a thin dielectric substrate, one of which provides the TE and the other the TM response [8]. In this paper, we build on the work reported in [8] to create a thin metal backed FSS absorber which provides significant suppression of the backscattered signals at oblique incidence with the electric vectors orientated either vertically (TE) or horizontally (TM).…”

Section: Introductionmentioning

confidence: 99%

“…The authors have demonstrated that this performance limitation can be removed in reflection mode, by printing two different ( λ mode) split ring arrays on the opposite sides of a thin dielectric substrate, one of which provides the TE and the other the TM response [8]. In this paper, we build on the work reported in [8] to create a thin metal backed FSS absorber which provides significant suppression of the backscattered signals at oblique incidence with the electric vectors orientated either vertically (TE) or horizontally (TM). Independent control of the reflectivity in the two planes of polarisation, and equalisation of the bandwidth and resonant frequencies is achieved by using a split ring resonator [8] composed of a single periodic array of rectangular loops with resistive elements inserted at the midpoint of the four sides.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, we build on the work reported in [8] to create a thin metal backed FSS absorber which provides significant suppression of the backscattered signals at oblique incidence with the electric vectors orientated either vertically (TE) or horizontally (TM). Independent control of the reflectivity in the two planes of polarisation, and equalisation of the bandwidth and resonant frequencies is achieved by using a split ring resonator [8] composed of a single periodic array of rectangular loops with resistive elements inserted at the midpoint of the four sides. Proof of the principle of operation is made by designing an absorber which functions for both polarisations when tilted 45° with respect to the angle of incidence.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Polarisation independent resistively loaded frequency selective surface absorber with optimum oblique incidence performance

Zabri¹,

Cahill²,

Schuchinsky³

2014

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

. Polarisation independent resistively loaded frequency selective surface absorber with optimum oblique incidence performance. IET Microwaves, Antennas and Propagation, 8(14), 1198 -1203 . DOI: 10.1049 /iet-map.2014 ABSTRACTThis paper presents the design of a thin electromagnetic absorber which exhibits radar backscatter suppression that is independent of the wave polarization at large incidence angles. The structure consists of a metal backed printed Frequency Selective Surface (FSS), with resistors placed across narrow gaps inserted in the middle of each of the four sides of the conductor loops. The geometry of the periodic array and the value of the vertical and horizontal resistor pairs are carefully chosen to present a real impedance of 377Ω at the center operating frequency for both TE and TM polarized waves. Angular sensitivity and reflectivity bandwidth have been investigated for FSS absorber designs with thickness 1, 2 and 3 mm. Each of the three structures was optimized to work at a center frequency of 10 GHz and an incident angle of 45. The design methodology is verified by measuring the radar backscatter suppression from a 3 mm (/10) thick screen in the frequency range 8 -12GHz. The absorber construction was simplified by filling the four metal gaps in each unit cell with shielding paint, and selecting the ink thickness to give the two required surface resistance values.2

show abstract

Polarisation independent split ring frequency selective surface

Cited by 12 publications

References 7 publications

A New Conductive Ink for Microstrip Antenna and Bioinspired FSS Designs on Glass and Fiberglass Substrates

A New Conductive Ink for Microstrip Antenna and Bioinspired FSS Designs on Glass and Fiberglass Substrates

Design and demonstration of a tri‐band frequency selective surface for space applications in X, K, and Ka bands

Polarisation independent resistively loaded frequency selective surface absorber with optimum oblique incidence performance

Contact Info

Product

Resources

About