# 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama)

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• ### 2018 Progress In Electromagnetics Research Symposium (PIERS | Toyama)

Publication Year: 2018, Page(s): 1
| | PDF (158 KB)

2018 Progress In Electromagnetics Research Symposium (PIERS | Toyama) View full abstract»

• ### 2018 Progress In Electromagnetics Research Symposium (PIERS | Toyama)

Publication Year: 2018, Page(s): 1
| | PDF (67 KB)

©2018 The Institute of Electronics, Information and Communication Engineer (IEICE). Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from th... View full abstract»

Publication Year: 2018, Page(s):1 - 14
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The Progress in Electromagnetics Research Symposium (PIERS) is sponsored by The Electromagnetics Academy. View full abstract»

• ### Contents

Publication Year: 2018, Page(s):17 - 30
| | PDF (106 KB)
• ### Author Index

Publication Year: 2018, Page(s):2559 - 2567
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Author Index View full abstract»

• ### Measurement and Modeling of Multi-Frequency Microwave Emission of Soil Freezing and Thawing Processes

Publication Year: 2018, Page(s):31 - 36
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A ground-based microwave remote sensing experiment was carried out in 2016 using a multi-frequency microwave radiometer at L, C and X bands (1.4, 6.925 and 10.65 GHz). The aim of the experiment was to explore multi-frequency microwave emission characteristics of the soil freeze-thaw process for model and algorithm development for the future Water Cycle Observation Mission (WCOM). Measurements were... View full abstract»

• ### Z-R Relationships for Weather Radar in Indonesia from the Particle Size and Velocity (Parsivel) Optical Disdrometer

Publication Year: 2018, Page(s):37 - 41
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The relationship between the radar reflectivity factor ($Z$) and rainfall rate ($R$), which is called the $Z-R$ relationship $(Z=AR^{b})$, is important to convert $Z$ from weather radar to $R$ because a weather radar does not measure the rainfall amount directly. The $Z-R$ relationship can be governed from raindrop size d... View full abstract»

• ### Imaging Plasma Inhomogeneities Using Spatial Wave Field Processing with DWFT Approximation

Publication Year: 2018, Page(s):42 - 47
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To analyze inhomogeneities, it is appropriate to use phase tomography, which is based on the measurement of the phase of a wave transmitted from a transmitter to a receiver. Physical parameters of inhomogeneous media are identified by these methods in several stages. At the first stage, a receiving system with antennas registers the phase of a wave scattered by an inhomogeneity. Then, depending on... View full abstract»

• ### Optimal Cavities to Enhance Free-Space Matching in Solar Cells

Publication Year: 2018, Page(s):48 - 52
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In this paper, we present design and numerical simulations of nano-cavities for free-space matching in solar cells at optical frequencies. The cavity designs are inspired by the well-known antenna geometries that are commonly used at radio and microwave frequencies. Using such designs that have not been explored before in the context of solar cells, the electromagnetic mismatch between solar-cell ... View full abstract»

• ### Parabolic Equation of Diffraction Theory: Why It Works Better than Expected?

Publication Year: 2018, Page(s):53 - 58
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It is shown for the classical half-plane diffraction problem why parabolic equation of diffraction theory provides a good approximations to the exact solution of Helmholtz equation. Particularly, a boundary integral equation is formulated in the parabolic approximation. This equation is analogous to the corresponding integral equation for the initial (Helmholtz) problem. Then it is found out that ... View full abstract»

• ### Dipole Field Diffraction by a Strongly Elongated Spheroid in High-Frequency Approximation

Publication Year: 2018, Page(s):59 - 65
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The description of high-frequency diffraction by elongated spheroids encounters well-known difficulties. In particular, numerical analysis requires extensive computations, while high-frequency asymptotic expansion established by Fock, appears inaccurate for spheroids with high aspect ratio $b/a$ (where $a$ and $b$ are the minor and the major semiaxes). The special ... View full abstract»

• ### Diffraction of TM Polarized EM Waves by a Nonlinear Inhomogeneous Dielectric Cylinder

Publication Year: 2018, Page(s):66 - 70
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In this work, we consider the diffraction of TM waves by a nonlinear inhomogeneous dielectric cylinder. Numerical experiments are carried out for the nonlinearity with saturation. The physical problem is reduced to solving a nonlinear boundary value problem for a system of ordinary differential equations. Numerical results are obtained using a modification of the shooting method which makes it pos... View full abstract»

• ### Measurement of the Diffraction Coefficient of a Trihedral Cone with Homogeneous Neumann Boundary Conditions

Publication Year: 2018, Page(s):71 - 77
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We consider the scalar problem of diffraction by a trihedral cone with homogeneous Neumann boundary conditions. Such a problem can be obtained for one of the Debye potentials if one considers diffraction of an electromagnetic wave by a perfectly conducting cone or for the acoustic potential in the case of acoustic wave diffraction by a rigid cone. We approached the problem experimentally in the ac... View full abstract»

• ### Heterogeneously Integrated Optoelectronic Devices for Implantable Neural Interfaces

Publication Year: 2018, Page(s):78 - 81
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We present unconventional strategies to design and fabricate thin-film, microscale III-V based optoelectronic devices and use them in implantable systems for biomedical applications. Specifically, high performance light-emitting diodes (LEDs) and photodetectors are formed by epitaxial liftoff methods. The microscale devices are integrated onto flexible substrates and implanted into living animals ... View full abstract»

• ### A High-Speed Pipelined ADC Based on Open-Loop Amplification

Publication Year: 2018, Page(s):82 - 85
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In this paper, a high-speed pipelined ADC is proposed based on open-loop amplification. The open loop amplification technology presents higher bandwidth and higher power efficiency than the conventional closed loop amplification. Source degeneration technology is adopted to improve the linearity of the residual amplifier. In addition, each stage outputs one bit for higher conversion rate and more ... View full abstract»

• ### A Chip of Pulse-Laser-Assisted Dual-Beam Fiber-Optic Trap

Publication Year: 2018, Page(s):86 - 91
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Compared with the single-beam gradient optical trap, the dual-beam optical trap based on micro-structure eliminates the need for complex optical alignment and offers intrinsic benefits of miniaturization and stabilization, which are crucial for developing a practical sensor. We design a monolithic chip of dual-beam fiber-optic trap which allows extremely accurate alignment of submicron scale betwe... View full abstract»

• ### Rotation of a Trapped Microsphere in a Misaligned Dual-Beam Optical Tweezer

Publication Year: 2018, Page(s):92 - 98
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In this paper, we experimentally realize the rotation of a microsphere in an optical tweezer and conduct comprehensive simulation on trapping, rotation and escaping of a microsphere in dual-beam optical tweezer. According to our simulation, in a dual-beam optical tweezer, the radial misalignment and angle between two beams determines the movement properties of the trapped microsphere in the optica... View full abstract»

• ### Linear Cellularization Enabling Millimeter-Wave Train Radio Communication Systems in 5G Era

Publication Year: 2018, Page(s):99 - 106
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To meet the growing demands of larger capacity and quality of experience (QoE) satisfaction in in-transport wireless communications, in this paper the authors propose all-weather mm-wave train radio communication systems based on linear cell concept. Key enablers for the proposed linear-cellularized mm-wave train radio communication systems are: (i) narrow-beamwidth antenna for longer communicatio... View full abstract»

• ### Improvement in Accuracy of Breakpoint Distance Model for Path Loss Prediction

Publication Year: 2018, Page(s):107 - 114
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Positioning algorithms of wireless terminals that are based on received signal strength (RSS) require highly accurate prediction of RSS. Revisiting breakpoint distance models for path loss prediction is essential for new applications of wireless communications such as wireless localization and dense interference calculations. The breakpoint distance is defined as the distance that separates two di... View full abstract»

• ### Effects of Storm Attenuation Over Satellite Links in Sub-Tropical Africa

Publication Year: 2018, Page(s):115 - 120
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One of the key requirements of 5G wireless network technologies is the 99.999% system availability. In order to achieve this objective, wireless network links need to be designed appropriately. The implementation of 5G technology and its eventual integration with communication satellites will deliver the much needed high speeds (up to 4 GB/s) and correspondingly much lower latency (down to 1 ms). ... View full abstract»

• ### A Comparative Study of Dual-Slope Path Loss Model in Various Indoor Environments at 14 to 22 GHz

Publication Year: 2018, Page(s):121 - 128
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Fifth generation wireless communication networks will demand massive bandwidth for high data rates. The millimeter wave frequency bands will play an important role in the 5G wireless networks due to the available huge chunk of bandwidth. Deployment of wireless networks will require an appropriate path loss model for site-specific environments such as indoor corridors. Structural design and buildin... View full abstract»

• ### An Empirical Approach to Omnidirectional Path Loss and Line-of-sight Probability Models at 18 GHz for 5G Networks

Publication Year: 2018, Page(s):129 - 136
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Millimeter wave frequency bands present a huge bandwidth for fifth generation wireless communication networks. Wireless networks deployment within indoor environments will pose a challenge due to propagation characteristics of signals at millimeter wave frequency bands. This paper presents an empirical analysis of the impact of a building's structural and material design on omnidirectional path lo... View full abstract»

• ### The Second Order Moment Equation of Crossly Polarized EM-Waves Due to Depolarization in Propagation Through Continuous Isotropic Random Medium

Publication Year: 2018, Page(s):137 - 143
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We have shown the ensemble average of crossly polarized waves caused by depolarization and an equation for the spatial coherence function of the waves, called the second order moment equation, on the forward scattering approximation. This paper presents an analytic solution of the moment equation. View full abstract»

• ### Guided-Mode Resonance in Waveguide Cavity

Publication Year: 2018, Page(s):144 - 149
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A cavity-resonator-integrated guided-mode resonance filter (CRIGF) consisting of a grating coupler (GC) in two distributed Bragg reflectors constructing a waveguide cavity resonator shows a narrowband reflection spectrum for an incident free-space wave with a small aperture. Modification of grating lines of the GC in the cavity resonator are discussed. CRIGF with a nonuniform GC was investigated i... View full abstract»

• ### Microwave Interstitial Applicator Array for Treatment of Pancreatic Cancer

Publication Year: 2018, Page(s):150 - 154
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The aim of this paper is to check a possibility of usage of interstitial helix applicators for a treatment pancreatic cancer by microwave hyperthermia. This feasibility study is based on the simulations. The simulations were performed in the simulation program of electromagnetic field SEMCAD X for three different frequencies: 434, 915 and 2450 MHz. This paper contains the comparison SAR distributi... View full abstract»