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  • Essay On Patch Antenna

    1729 Words  | 7 Pages

    2 2 Microstrip Patch Antenna Array Fed by Substrate Integrated Waveguide for Radar Applications Chandan Baranwal, ME, BIT Mesra Abstract—A 2 2 microstrip patch antenna array fed by a sub-strate integrated waveguide (SIW) feeding network for 24-GHz radar applications is suggested in this paper. The microstrip patches are aperture-coupled with the feeding network comprising of a perpendicular coax-to-SIW transition and two Y-junction power dividers. The antenna design is performed in the

  • Abstract 2d Photonic Crystal ( Pc ) Based Power Splitter

    2323 Words  | 10 Pages

    splitter with 60° bend corners is designed and analyzed. The splitting efficiency at its bends has been improved by encapsulating rectangular defect, thereby increasing the power transmission of about 98.1%. A simple antiresonant reflecting optical waveguide (ARROW-B) is a polarization insensitive wave guiding, which utilizes antiresonance reflection and provides better coupling when compared with conventional wave guiding. We performed three-dimensional finite-difference time-domain (3-D FDTD) simulation

  • An Description Of An Exact Dissipation Model For Arbitrary

    757 Words  | 4 Pages

    In the paper titled “An exact dissipation model for arbitrary photonic Fock state transport in waveguide QED systems”, Chen et al. have presented a dissipation model to study the Fock and coherent state transport through waveguide QED (wQED) systems. As the main novelty of their work, they have modelled the environment as a 3D scattering channel (described in a real-space picture similar to the waveguide modelling) and it has been shown that a reduced Hamiltonian can be obtained for arbitrary photon

  • What Is Polarization Sensitivity Of Hcg

    818 Words  | 4 Pages

    hollow optical waveguide:- optical waveguide is the basic

  • Applications Of Photonic Circuits

    753 Words  | 4 Pages

    crystal based hollow waveguides, Bragg reflectors and their integrations with electronic devices. 2.2 Literature Review High index contrast gratings have been a very appealing choice over conventional DBRs in terms of high reflection, size etc, also unlike DBRs, they provide phase and polarization control of light. The huge mismatch between the electronic and photonic devices blocks the realization of high

  • Guide Wavelength Measurements

    1538 Words  | 7 Pages

    | Assignment 2 | Guide wavelength measurements | | | Abstract The purpose of this experiment is to demonstrate: a) The techniques for measuring guide wavelength. b) The relationship between the wavelength in free space and the guide wavelength. Furthermore, this experiment will be a way in which to gain experience in using different types of laboratory communications equipment. Introduction What is wavelength? Wavelength of a sinusoidal wave is the distance between identical

  • Research Paper On Raman Line Scan Mapping

    899 Words  | 4 Pages

    objective lens, and the spatial measurements were obtained with a step size of 0.1μm long a horizontal. Typical Raman spectra at ON, and OFF of the waveguide are shown in Fig. 5.3 for G peak and Fig 5.4 for 2D peak position, respectively. These clearly reveal the up-shift in peak frequency where the graphene sits on the underlying silicon waveguide structure. The 2D-peak is well described by a by a symmetric Lorentzian function, a signature of single layer graphene [8]. Rather we found that the

  • How Optical Antennas Are An Emerging Concept Within Physical Optics

    2363 Words  | 10 Pages

    1. Introduction Optical antennas are an emerging concept in physical optics. Similar to radio-wave and microwave antennas, their purpose is to convert the energy of free propagating radiation to localized energy, and vice versa. Optical antennas exploit the unique properties of metal nanostructures, which behave as strongly coupled plasmas at optical frequencies. Electromagnetic (EM) waves from low radiofrequencies (RF) to high optical frequencies pervade our environment. They interact with matter

  • The Current Market Of Solar Concentration Systems

    2112 Words  | 9 Pages

    Reductions in the cost per peak watt can potentially be made to PV technology by increasing the net flux of solar energy to a given cell area. This can lead to reductions in PV prices independently of advances in PV cell technology126. This application of solar concentration saturates carrier traps inside the material, while raising the thermodynamic efficiency limit. The saturation of traps means charge carries are more efficiently transported, leading to improved overall cell efficiency127. Furthermore

  • Wireless Electricity

    2564 Words  | 11 Pages

    SIXTH INTERNATIONAL SYMPOSIUM NIKOLA TESLA October 18 – 20, 2006, Belgrade, SASA, Serbia Wireless Transmission of Electricity – Development and Possibility Tanuj Kumar Mandal1 Abstract –In the present paper the various technologies available so far for wireless transmission of electricity and the need for a Wireless System of Energy Transmission is being discussed to find its possibility in actual practices, their advantages, disadvantages and economical consideration. This paper is mainly