Equivalent circuit model for arrays of square loops

Langley, Richard J.; Parker, Edward A.

doi:10.1049/el:19820201

Cited by 399 publications

(217 citation statements)

References 5 publications

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“…The value of the inductance L f and capacitance C f can be approximated by considering the conventional loop and given by following relations [15,18] …”

Section: Design Of Frequency Selective Surfacementioning

confidence: 99%

Design and Analysis of New Compact Uwb Frequency Selective Surface and Its Equivalent Circuit

Kushwaha¹,

Kumar²,

Krishna³

et al. 2014

PIER C

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Abstract-A compact, low profile, dual polarized, ultra wideband, frequency selective surface is proposed. It is designed by using two similar metallic array structures separated by dielectric material FR4. The simulated reflection bandwidth (with transmission < −20 dB) for TE incident wave is 8 GHz from 2.87 GHz to 10.87 GHz corresponds to 116%. The unit cell dimension and periodicity are of the order of 0.37λ at the centre frequency. The overall thickness of the proposed FSS is 1.8 mm.The proposed FSS has higher order of band-stop response and good angular stability. The measured transmission response of FSS is very close to simulated response. Design expressions for the resonance frequencies are proposed, and the calculated results are found to be in good agreement with the simulated ones. Finally, a parametric analysis of the proposed FSS is presented.

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“…The value of the inductance L f and capacitance C f can be approximated by considering the conventional loop and given by following relations [15,18] …”

Section: Design Of Frequency Selective Surfacementioning

confidence: 99%

Design and Analysis of New Compact Uwb Frequency Selective Surface and Its Equivalent Circuit

Kushwaha¹,

Kumar²,

Krishna³

et al. 2014

PIER C

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“…The equivalent circuit model of a SSLFSS is developed by [16] and this has been used to extract the circuit lumped parameters inductance (L) and capacitance (C) by several researchers [17,18]. With the help of the equivalent circuit model, the equivalent inductance and capacitance are obtained from the given physical parameters of an FSS like the periodicity (p), loop length (d), width of the strip (w), angle of incidence (θ) and the inter-loop gap (g), where these parameters are shown in Figure 1.…”

Section: Theory Of Operationmentioning

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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“…An Array of square-loops has been modeled [6,7] based on equations given by Marcuvitz [5]. The equivalent circuit model of square-loop array is represented by a single series LC circuit shunted a transmission line.…”

Section: Investigation Of a Circuit Analog Screen Which Satisfies Thementioning

confidence: 99%

A Novel Technique for Improving the Performance of Salisbury Screen

Abdelaziz¹

2008

PIER Letters

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Abstract-The most common and simple structure to reduce the level of the reflected power from a metallic surface is the single layer structure known as Salisbury screen which is a sheet of porous material impregnated with graphite and spaced a quarter-wavelength off a metallic backing plate. The main disadvantage of this mechanism is the narrow frequency bandwidth. Many techniques have been reported to improve the working frequency bandwidth but with some degradation in the other technical properties of the overall structure. In this paper a novel technique has been introduced based on a spatial kind of material called circuit analog screen. Theoretical analysis shows that the bandwidth of the reflected power will be improved if the graphite sheet of Salisbury screen has been loaded by circuit analog screen with spatial geometry with spatial parameters.

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Equivalent circuit model for arrays of square loops

Cited by 399 publications

References 5 publications

Design and Analysis of New Compact Uwb Frequency Selective Surface and Its Equivalent Circuit

Design and Analysis of New Compact Uwb Frequency Selective Surface and Its Equivalent Circuit

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

A Novel Technique for Improving the Performance of Salisbury Screen

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