Search Results - "Nayyeri, V"
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Synthesis, characterization and dielectric properties of one-step pyrolyzed / activated resorcinol-formaldehyde based carbon aerogels for electromagnetic interference shielding applications
Published in Materials chemistry and physics (01-07-2018)“…The present study is an attempt to investigate the effects of simultaneous pyrolysis/activation processes and 3D network characteristic on structural,…”
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2
A highly linearized second harmonic injected GaN power amplifier
Published in Microwave and optical technology letters (01-10-2022)“…This article presents an active second harmonic injection technique for linearizing power amplifiers (PAs). In this method, a second harmonic signal with…”
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3
Electromagnetic and microwave absorption characteristics of PMMA composites filled with a nanoporous resorcinol formaldehyde based carbon aerogel
Published in RSC advances (01-01-2018)“…Nanostructured carbons have opened up new perspectives in fields of electromagnetic (EM) applications. The present study aims at the processing of microwave…”
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4
Mutual Coupling Reduction by Pixelated Resonator Structure
Published in 2019 IEEE Indian Conference on Antennas and Propogation (InCAP) (01-12-2019)“…In this paper, a systematic procedure to reduce mutual coupling between linear 2×1 array microstrip antennas is proposed. The proposed design procedure is…”
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Conference Proceeding -
5
Medium density fiberboard (MDF) with efficient electromagnetic shielding: Preparation and evaluation
Published in Bioresources (01-02-2022)“…Carbon fiber (CF)-filled fiberboard specimens for electromagnetic (EM) shielding applications were produced in this study by mixing CF with wood fiber (WF)…”
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6
A Novel Dual-Band Chiral Metamaterial Structure with Giant Optical Activity and Negative Refractive Index
Published in Journal of electromagnetic waves and applications (01-01-2012)“…A novel dual-band semi-planar chiral metamaterial structure is proposed in this paper. The optical characteristics and effective parameters of the proposed…”
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7
On the Miniaturization of Semiplanar Chiral Metamaterial Structures
Published in IEEE transactions on antennas and propagation (01-12-2012)“…In this paper, miniaturized chiral metamaterial (CMM) structures with smaller unit cells or lower resonant frequencies are investigated. In achieving this…”
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8
Electromagnetic Scattering From Inhomogeneous Planar Layered Media Using Notation of Propagators
Published in Journal of electromagnetic waves and applications (01-05-2012)“…In this paper, the reflection and transmission of an electromagnetic plane wave from (through) planar layered of inhomogeneous bi-anisotropic media are…”
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9
Dual- and Multiband Chiral Metamaterial Structures With Strong Optical Activity and Negative Refraction Index
Published in IEEE antennas and wireless propagation letters (2012)“…A novel dual-band chiral metamaterial based on the conjugated gammadions structure is proposed. Simulation and experimental results, which are in a very good…”
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10
FDTD Modeling of Dispersive Bianisotropic Media Using Z-Transform Method
Published in IEEE transactions on antennas and propagation (01-06-2011)“…The finite-difference time-domain (FDTD) technique for simulating electromagnetic wave interaction with a dispersive chiral medium is extended to include the…”
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11
Reflection From Stratified Media Backed by a Perfect Electromagnetic Conductor (PEMC)
Published in IEEE transactions on antennas and propagation (01-10-2012)“…Perfect electromagnetic conducting (PEMC) boundary is a generalization of both PEC and PMC boundaries, creating nonreciprocal reflection which could be…”
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12
Assessment of RF radiation levels in the vicinity of 60 GSM mobile phone base stations in Iran
Published in Radiation protection dosimetry (01-07-2013)“…Increasing development of mobile communication infrastructure while enhancing availability of the technology raises concerns among the public, who see more…”
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13
Designing a Compact-Optimized Planar Dipole Array Antenna
Published in IEEE antennas and wireless propagation letters (2011)“…The design of an optimized planar dipole array (OPDA) antenna is presented using particle swarm optimization (PSO), a well-known global optimization method…”
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14
A Circularly Polarized Metasurface Antenna
Published in IET Conference Proceedings (09-04-2018)“…The concept of metasurface antennas based on electrically small resonators was recently introduced and has opened a new window into the design of high gain…”
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Conference Proceeding -
15
Implementation of a PEMC boundary condition in the 2-D FDTD technique
Published in Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation (01-07-2012)“…In this paper, a two-dimensional FDTD technique is presented to solve scattering problems involving PEMC boundaries. Basically, new FDTD updating equations are…”
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Conference Proceeding -
16
PEMC-backed perfectly matched layer as a truncation boundary
Published in Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation (01-07-2012)“…A new application for perfect electromagnetic conducting boundary, a recently introduced type of perfectly conducting boundaries creating nonreciprocal…”
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Conference Proceeding -
17
Analysis of inhomogeneous chiral slab using Taylor's series expansion
Published in Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation (01-07-2012)“…In this paper, an analytic frequency domain method based on Taylors series expansion is introduced to analyze inhomogeneous planar layered chiral media for an…”
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Conference Proceeding -
18
Analytical and numerical calculation of reflection from a stratified structure backed by a PEMC
Published in 2011 11th Mediterranean Microwave Symposium (MMS) (01-09-2011)“…Reflection from a stratified medium, backed by a perfect electromagnetic conductor (PEMC) due to an oblique incident plane wave is calculated analytically and…”
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19
Novel technique for improvement of transmission line matrix method algorithm frequency response
Published in 2011 11th Mediterranean Microwave Symposium (MMS) (01-09-2011)“…In this paper, an accurate and numerically robust singularity correction technique for transmission line matrix method (TLM) algorithm is proposed. The…”
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Conference Proceeding