frequency selective
3D Frequency Selective Surfaces
... 3D Frequency Selective Surface (FSS) architecture based on a circular ring unit element is ...the frequency characteristics of the ...center frequency of both band pass and band stop responses ...
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Frequency Selective Surfaces with Fractal Four Legged Elements
... Spectral domain approach has been successful in analyzing frequency selective surfaces [2]. First, the Green’s function of the multilayered media is calculated in the spectral domain, by using the ...
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Design of Metamaterial Multilayer Structures as Frequency Selective Surfaces
... Metallic frequency selective surfaces (FSSs) have been commonly fabricated by the printed circuit technology for the microwave and optical ...Their frequency selective characteristics are ...
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Analysis of Frequency Selective Surfaces for Radar Absorbing Materials
... resonant frequency (f r ) of FSS array is dependent on the thickness of the supporting dielectric ...resonance frequency is reduced by a factor √ ε eff [1, ...the frequency selective response ...
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Improving Performance and Detection Schemes of Mimo-Ofdm Systems in the Presence of Phase Noise and Doubly-Selective Fading Where Channel is Both Time and Frequency Selective Offia Innocent.S, Udeh Ikemefuna James, Eke J
... orthogonal frequency division multiplexing (OFDM) that has been recognized as one of the most promising techniques to support high data rate and high performance in different channel ...orthogonal frequency ...
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Frequency selective surface (FSS) for cellular signals shielding
... In recent years, there has been immense growth in the number of application of wireless technologies, including wireless local area networks (WLANs) and mobile systems. The explosive growth of mobile systems is due to ...
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Relay selection in cooperative networks with frequency selective fading
... We further verify the performance of the transceiver design with different relaying strategies. In the simula- tion, we use a block length N = 32 and Gray-mapped QPSK modulation. In Figures 6 and 7, we consider a ...
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Design of dual band Frequency Selective Surface (FSS)
... The use of frequency selective surface (FSS) has successfully proven as a means to enhance communication capabilities satellite platform. In space missions such as Voyager, Galileo, and Cassini, the use of ...
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INPULSE noise estimation in frequency selective fading channel
... Orthogonal Frequency Division Multiplexing is also known as Discrete Multi-Tone ...with frequency selective fading channel, and its performance may be dramatically impacted by the presence of impulse ...
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A Dual-Frequency Single Layer Circularly Polarized Reflectarray with Frequency Selective Surface Backing
... Abstract—The design of a dual-frequency single-layer circularly polarized reflectarray with frequency selective surface (FSS) backing is presented in this paper. The proposed reflectarray consists of ...
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Design And Development Of Antenna With Frequency Selective Surfaces (FSS)
... with Frequency Selective Surfaces ...band. Frequency Selective Surface (FSS) is placed at the hollow of the antenna structure to optimize the transmissivity wave from the antenna with low ...
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Study of frequency selective surfaces on radar cross section reduction
... study, frequency selective surfaces, FSS are proposed in order to minimize the radar cross section which can offer a significant improvement in the radar cross section ...the frequency ...
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A Novel Miniaturized Frequency Selective Surface with Very Stable Performance
... For this paper, a miniaturized frequency selective surface (MFSS) with excellent stability towards incident angles and polarizations is presented. The metallic SIE structures are set on one side of the ...
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A Novel Dualband Frequency Selective Surface with Periodic Cell Perturbation
... dualband frequency selective surface (FSS) with both a dielectric substrate and superstrate constructed by double-four- legged loaded slots (DFLLSs) is investigated, in which each periodic cell consists of ...
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All-Dielectric Frequency Selective Surfaces with Few Number of Periods
... Abstract—All-dielectric frequency selective surfaces (FSSs) can serve as an alternative to their metallic counterparts when they must operate at very high power, loss must be minimized, or when the surface ...
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Design of Nonuniform Filter Bank Transceivers for Frequency Selective Channels
... a frequency selective channel, these fil- ter bank transceivers suffer from severe ISI effect [7, 8], and post processing technique is needed at the receiver for chan- nel equalization ...for frequency ...
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Identification of LOS in Time Varying, Frequency Selective Radio Channels
... A method is proposed to identify the existence of line-of-sight (LOS) for time-varying, frequency selective radio channels. The proposed method considers the second-order statistical characteristics of ...
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Frequency Selective Surface Loaded Antenna for Direct Antenna Modulation
... Abstract —A reconfigurable antenna loaded with Frequency Selective Surfaces (FSS) to achieve direct antenna phase modu- lation is presented and simulated. Placing FSS with integrated varactor diodes into a ...
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Design of a UDE Frequency Selective Filter to Reject Periodical Disturbances
... the bandwidth of the control signal. The resulting Bode diagram of the Frequency Selective Filter (FSF) G(s) is shown in Fig. 4. It is observed that the filter reaches a unity gain and zero phase at the ...
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Improved Diversity Analysis of Coded OFDM in Frequency Selective Channels
... In digital communication and storage systems, to improve the performance of forward error correcting codes interleaving is used frequently. Many communication channels in now a days are not memoryless. So errors ...
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