Shielding Effectiveness of Modern Energy-Saving Glasses and Windows

Ragulis, Paulius; Ängskog, Per; Simniškis, R.; Vallhagen, Bengt; Bäckström, Mikael; Kancleris, Ž.

doi:10.1109/tap.2017.2718223

Cited by 16 publications

(7 citation statements)

References 18 publications

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“…Commercial Low-E windows are usually composed of two glass panes, x 1 = 4 mm and x 2 = 4 mm, and the gap is d = 16 mm. As shown in [21], they demonstrate a few minima of SE in the microwave frequency range. The simplest way to shift them in the frequency scale is to change the gap d between glass panes.…”

Section: Dependence Of Se On the Gap Between Glass Panes: Theory And mentioning

confidence: 82%

“…By comparing the Fig. 3(a) results with those of the commercial double-glazed windows presented in [21], it can be seen that our glass had a few times lower surface conductivity than the typical commercial glass. For this reason commercial windows show roughly 10 dB larger SE than home-made windows used in our experiments.…”

Section: Dependence Of Se On the Gap Between Glass Panes: Theory And mentioning

confidence: 92%

“…The interaction of the conductive sheet with electromagnetic wave was considered as a boundary condition leading to the break of the tangential component of a magnetic field [20]. The same approach was applied to the electromagnetic wave falling perpendicularly on a multilayered dielectric structure, where each interface might be covered with a thin metal layer [21]. The characteristic impedance η i is defined for each media by the equation…”

Section: Theoretical Considerationmentioning

confidence: 99%

“…Therefore to calculate, for example, the amplitude of transmitted wave through the doubleglazed window only multiplication of seven 2 × 2 matrices should be performed, four of which are matching and three are propagation. A more detailed explanation how SE can be calculated at an oblique angle of the incidence of electromagnetic wave can be found in [21,22].…”

Section: Theoretical Considerationmentioning

confidence: 99%

See 3 more Smart Citations

Minimization of shielding effectiveness of energy saving windows in WiFi frequency range

Bilotas¹,

Ragulis²,

Kancleris³

2018

physics

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We investigated the dependence of shielding effectiveness of energy saving double-glazed windows on their longitudinal dimensions (thickness of metalized and uncoated glass panes and the gap between them) both experimentally and theoretically. It was shown that by changing the longitudinal dimension of the window the minimum of shielding effectiveness could be shifted to the desirable frequency range. Applying this approach to the WiFi frequency range we demonstrated that shielding effectiveness can be decreased by 7–9 dB for the 2.4 GHz WiFi connection and by 14–17 dB for the 5 GHz connection in comparison with that of an ordinary energy saving double-glazed window. Theoretical considerations have been confirmed by experimental investigation of the dependence of shielding effectiveness on the gap between glass panes.

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Section: Dependence Of Se On the Gap Between Glass Panes: Theory And mentioning

confidence: 82%

Section: Dependence Of Se On the Gap Between Glass Panes: Theory And mentioning

confidence: 92%

Section: Theoretical Considerationmentioning

confidence: 99%

Section: Theoretical Considerationmentioning

confidence: 99%

See 2 more Smart Citations

Minimization of shielding effectiveness of energy saving windows in WiFi frequency range

Bilotas¹,

Ragulis²,

Kancleris³

2018

physics

Self Cite

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show abstract

“…Energy-saving glass that has been developed and applied includes insulating glass [10][11][12], coated glass [13][14][15] and metallized glass [16][17][18]. However, solar energy can only be statically adjusted due to its fixed lighting and heating performance, which has great limitations in energy utilization.…”

Section: Introductionmentioning

confidence: 99%

Review: smart windows based on photonic crystals

Feng

Yang

et al. 2020

J Mater Sci

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Smart windows control indoor solar radiation by regulating the transmittance of light, which is a promising way to reduce building energy consumption. The advent of photonic crystals (PCs) has accelerated the industrialization of smart windows. The combination of static and dynamic regulation can be realized based on the photon control function of photonic band gaps, which is expected to achieve the ideal effect of light transmission and heat control. This paper reviews recent advances of electrochromic and thermochromic smart windows based on PCs. Firstly, theory, materials, performance and development of electrochromic and thermochromic smart windows based on PCs are briefly outlined. Typical structures of electrochromic and thermochromic PCs are introduced in detail, from preparation process, morphology characterization and performance analysis, which provides directions for the future development and construction of smart windows based on PCs. Finally, challenges and opportunities facing next-generation smart windows are summarized.

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