Searched for: subject%3A%22Frequency%255C%2Bselective%255C%2Bsurfaces%22
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Yepes, C. (author), Cavallo, D. (author), Gandini, E. (author), Monni, S. (author), Neto, A. (author), van Vliet, F.E. (author)
five-layer frequency selective surface (FSS) composed of subwavelength elements with large harmonic rejection bandwidth is presented. The FSS design is based on an equivalent circuit model, where the interlayer interaction is only described with a single transmission line representing the fundamental Floquet wave. A prototype of the designed FSS...
article 2018
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Yepes, C. (author), Cavallo, D. (author), Neto, A. (author), Gandini, E. (author), Monni, S. (author), van Vliet, F.E. (author)
conference paper 2017
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Sanchez-Romaguera, V. (author), Wünscher, S. (author), Turki, B.M. (author), Abbel, R. (author), Barbosa, S. (author), Tate, D.J. (author), Oyeka, D. (author), Batchelor, J.C. (author), Parker, E.A. (author), Schubert, U.S. (author), Yeates, S.G. (author)
article 2015
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Sanchez-Romaguera, V. (author), Wünscher, S. (author), Turki, B.M. (author), Abbel, R. (author), Barbosa, S. (author), Tate, D.J. (author), Oyeka, D. (author), Batchelor, J.C. (author), Parker, E.A. (author), Schubert, U.S. (author), Yeates, S.G. (author)
Inkjet printing of functional frequency selective surfaces (FSS) and radio frequency identification (RFID) tags on commercial paper substrates using silver nanoparticle inks sintered using low temperature thermal, plasma and photonic techniques is reported. Printed and sintered FSS devices demonstrate performances which achieve wireless...
article 2015
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Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek (author), Dijk, R. (author), van Vliet, F.E. (author), Stefania, M. (author)
The invention relates to an electromagnetic limiter. The limiter comprises a multilayer having an electrically conducting pattern superposed on a dielectric structure. Further, the multilayer is provided with at least one electromagnetically transparent aperture for forming a frequency selective surface. In addition, the limiter comprises a non...
patent 2011
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Pasian, M. (author), Monni, S. (author), Neto, A. (author), Ettorre, M. (author), Gerini, G. (author), TNO Defensie en Veiligheid (author)
This paper deals with the use of frequency selective surfaces (FSS) to increase the efficiency bandwidth product in wideband antenna arrays, whose efficiency is limited by the front-to-back ratio. If the backing reflector for the antenna is realized through a single metal plane solution, its location will be suitable only on a relatively limited...
article 2010
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Monni, S. (author), Bekers, D.J. (author), van Wanum, M. (author), van Dijk, R. (author), Neto, A. (author), Gerini, G. (author), van Vliet, F.E. (author), TNO Defensie en Veiligheid (author)
In this paper the concept of limiting Frequency Selective Surface (FSS) is presented. The design of a reconfigurable FSS equipped with PIN diodes, aimed at the protection of a radar receiver from high power impinging electromagnetic waves is outlined and verified against the measurement results of a hardware demonstrator.
conference paper 2009
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Monni, S. (author), Neto, A. (author), Gerini, G. (author), Nennie, F. (author), Tijhuis, A. (author), TNO Defensie en Veiligheid (author)
Interference between neighboring antennas operating in nearby frequency ranges can lead to damage of the front-end electronics. This letter presents the design of a frequency-selective surface (FSS) aimed at preventing the saturation of the low noise amplifiers of a phased-array radar antenna due to the carrier of a satellite communication...
article 2009
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Monni, S. (author), Bekers, D.J. (author), van Wanum, M. (author), van Dijk, R. (author), Neto, A. (author), Gerini, G. (author), van Vliet, F.E. (author), TNO Defensie en Veiligheid (author)
In this paper the concept of limiting Frequency Selective Surface (FSS) is presented. The design of a reconfigurable FSS equipped with PIN diodes, aimed at the protection of a radar receiver from high power impinging electromagnetic waves is outlined and verified against the measurement results of a hardware demonstrator.
conference paper 2009
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Pasian, M. (author), Neto, A. (author), Monni, S. (author), Ettorre, M. (author), Gerini, G. (author), TNO Defensie en Veiligheid (author)
This paper deals with the use of Frequency Selective Surfaces (FSS) to increase the Efficiency × Bandwidth product in Ultra-Wide Band (UWB) antenna arrays whose efficiency is limited by the front-to-back ratio. If the backing reflector is realized in one metal plane solution its location will be suitable as antenna ground plane only on a limited...
conference paper 2008
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TNO Defensie en Veiligheid (author), Janssen, J.P.B. (author), Monni, S. (author), Maas, A.P.M. (author), van Vliet, F.E. (author)
Front-end power overload protection is a vital issue in any electro-magnetic sensor. The issues around active electronically-steered arrays are more recent and pose new threats. Different categories of threats can damage the sensitive electronics in the phased-array radar, like hostile high power electro-magnetic (HPEM) pulses or the radar’s own...
conference paper 2008
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Bekers, D.J. (author), Monni, S. (author), van den Berg, S.M. (author), van de Water, A.M. (author), Morsink, B.J. (author), Alboin, C. (author), Ducros, V. (author), Celikbas, M. (author), Blanche, J. (author), Fiscante, N. (author), Gerini, G. (author), Martinaud, J.P. (author), Rochette, M. (author), van Werkhoven, G.H.C. (author), TNO Defensie en Veiligheid (author)
In this paper, we introduce a general framework to efficiently optimize phased array antennas integrated with Frequency Selective Surfaces (FSS) and feeding elements. The framework consists of two main parts: the first being parametric models that enable fast evaluation of the full-wave problem for a range of frequency, scan angle and geometry...
conference paper 2007
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Albani, M. (author), Balling, P. (author), Ettorre, M. (author), Gerini, G. (author), Maci, S. (author), Pontoppidan, K. (author), Sipus, Z. (author), Sjöberg, D. (author), Vecchi, G. (author), Vipiana, F. (author), TNO Defensie en Veiligheid (author)
The topic of this paper is the work carried out in Work Package 2.3-2 of the EU network ACE. This work package is concerned with the modelling of the surfaces of modern reflector antennas. In particular the problems associated with homogenisation of periodic structures are described together with an application example. An accurate MoM solutions...
conference paper 2007
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TNO Industrie en Techniek TNO Defensie en Veiligheid (author), Monni, S. (author), Gerini, G. (author), Neto, A. (author), Tijhuis, A.G. (author)
A modular technique originally proposed for waveguide junctions, the multimode equivalent network approach based on the integral equation formulation (IEMEN), is extended to the analysis of multilayer Frequency Selective Surfaces integrated with waveguide array antennas. This technique represents each layer and transition between layers in terms...
article 2007
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Monni, S. (author), Neto, A. (author), Tijhuis, A.G. (author), TNO Defensie en Veiligheid (author)
Despite the fact that the general behavior of periodic structures has been investigated for many decades, the analysis and design of multilayered FSS's is still a very actual and complicated problem. This is especially true for stringent requirements, which rise for example when the FSS has to be integrated with a planar phased array. A MEN...
conference paper 2006
document
Monni, S. (author), Gerini, G. (author), Neto, A. (author), TNO Defensie en Veiligheid (author)
This paper describes the design and measurement of a two-layers gangbuster Frequency Selective Surface (FSS). The FSS is aimed to limit the RCS of the compartment of a ship's mast housing telecommunication antennas and should guarantee a pass-band at low frequencies, in the operating band of the antennas, while reflecting the incoming signal at...
conference paper 2006
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Gerini, G. (author), Zappelli, L. (author), TNO Defensie en Veiligheid (author)
In this paper, we present the analysis of periodic arrays on cylindrical surfaces using open-ended waveguide radiators loaded with radomes and frequency selective surfaces (FSS). The multilayer structure can be used to obtain a filtering behavior by properly choosing the radomes and the size of the FSS apertures. The effect of the gradual cutoff...
article 2005
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Monni, S. (author), Neto, A. (author), Gerini, G. (author), Tijhuis, A.G. (author), TNO Defensie en Veiligheid (author)
The Multimode Equivalent Network approach based on the Integral Equation formulation (IEMEN), originally proposed for waveguide structures, has been extended in [1] to the analysis of multi-layer FSS's. This method formalizes the scattering problem in terms of a single integral equation with reduced kernel and corresponding reduced (non...
conference paper 2005
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TNO Defensie en Veiligheid (author), Monni, S. (author)
doctoral thesis 2005
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Monni, S. (author), Gerini, G. (author), TNO Fysisch en Elektronisch Laboratorium (author)
A single mode model and a full multimode equivalent network (MEN) approach have been adopted for the design of an FSS integrated phased array. The single mode equivalent transmission line model allows a systematic design of the FSS, starting from the requirements, and the results of this simple design procedure are similar to well known...
conference paper 2004
Searched for: subject%3A%22Frequency%255C%2Bselective%255C%2Bsurfaces%22
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