Influence of supporting dielectric layers on the transmission properties of frequency selective surfaces

Callaghan, Peter; Parker, Edward A.; Langley, Richard J.

doi:10.1049/ip-h-2.1991.0075

Cited by 85 publications

(81 citation statements)

References 9 publications

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“…Firstly the frequency of the null reduces with incidence angle (as might be expected from [4]). There also appears to be multiple resonances forming above the first surface wave null.…”

Section: Effect Of Incidence Anglementioning

confidence: 90%

See 1 more Smart Citation

Investigation into use of double‐layer grid structures as frequency selective surfaces for buildings

Callaghan

Huelin

Sagor

2016

IET Microwaves, Antennas & Propagation

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“…Firstly the frequency of the null reduces with incidence angle (as might be expected from [4]). There also appears to be multiple resonances forming above the first surface wave null.…”

Section: Effect Of Incidence Anglementioning

confidence: 90%

“…The upper 'useful' frequency of an FSS is usually limited by the appearance of 'trapped waves' [4] as the periodicity approaches a wavelength. Most researchers have limited themselves to investigating novel single layer FSS structures [5].…”

Section: Introductionmentioning

confidence: 99%

Investigation into use of double‐layer grid structures as frequency selective surfaces for buildings

Callaghan

Huelin

Sagor

2016

IET Microwaves, Antennas & Propagation

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show abstract

“…Furthermore, we found that the transmission loss increased and the bandwidth decreased with an increasing curvature. The increase in transmission loss might be due to the change in the composite material properties, such as an increase in the effective permittivity and dielectric loss [24]. The bandwidth narrowing might be due to a weak mutual coupling among the unit cells as the phase difference of their magnetic field in the curved surface increases with respect to the incident plane wave [25,26].…”

Section: Composite Materials Fabrication and Curved Structure Evaluationmentioning

confidence: 99%

Design of Active Frequency Selective Surface with Curved Composite Structures and Tunable Frequency Response

Lee

Park

Chun

et al. 2017

International Journal of Antennas and Propagation

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We present an active frequency selective surface (AFSS) consisting of a curved composite structure that provides structural stability and robustness. The proposed structure can operate on either the C-band (OFF state) or X-band (ON state) by controlling the PIN diode located between the cross-shaped loop and the inductive stub on the surface. Moreover, it minimizes parasitic couplings through grid-type on/off bias circuits and via holes. Thus, the AFSS guarantees isolation from the unit cell, which is a downside of a previous control technique called reconfigurable frequency selective surface. We analyzed the impact of composite structures and the three-dimensional shape on the AFSS transmission with a foam-core sandwich structure, which is light and mechanically strong, by considering conditions of a real application environment.

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“…However, for the practical purpose, it is necessary to design the FSS on a dielectric material. However, the use of the dielectric material changes the performance of the structure [21] as the characteristic impedance above and below the structure is changed and operating frequency shifts down ward with proportion of ε −1/2 eff [1,2]. It indicates that the low-relative dielectric permittivity material is a good choice of substrate in the FSS design.…”

Section: Design Of a Low Cost Inexpensive Sslfss For Satellite Communmentioning

confidence: 99%

A Simple Synthesis Technique of Single-Square-Loop Frequency Selective Surface

Jha¹,

Singh²,

Jyoti³

2012

PIER B

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Abstract-In this manuscript, a simple synthesis method of single square loop frequency selective surface (SSLFSS) is discussed, which may find the suitable application in the fast analysis and fabrication of the frequency-selective surface. The presented technique is used to design SSLFSS at 3 GHz, 15 GHz, 22 GHz and 26 GHz. At every frequency of interest, the analytical result is very close to the required result. Moreover, a way to control the reflection at any frequency is discussed, which may find an application in controlling the reflection level at any frequency. However, we have proposed two simple, cheaper and lightweight structures at 3 GHz and 22 GHz for the application in various satellite communications. The proposed process has been extended to the analysis of bandpass structure and desired results have been achieved, which indicates the utility of the method of synthesis of both the bandpass and bandstop structures.

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Influence of supporting dielectric layers on the transmission properties of frequency selective surfaces

Cited by 85 publications

References 9 publications

Investigation into use of double‐layer grid structures as frequency selective surfaces for buildings

Investigation into use of double‐layer grid structures as frequency selective surfaces for buildings

Design of Active Frequency Selective Surface with Curved Composite Structures and Tunable Frequency Response

A Simple Synthesis Technique of Single-Square-Loop Frequency Selective Surface

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