Search Results - "ZIOŁKOWSKI, W"

Electrically Small, Low-Profile, Highly Efficient, Huygens Dipole Rectennas for Wirelessly Powering Internet-of-Things Devices by Lin, Wei, Ziolkowski, Richard W., Huang, Jianquan

“…Wireless power transfer (WPT) technologies are a major trend in emerging internet-of-things (IoT) applications. Because they negate the need for heavy, bulky…”
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Using Huygens Multipole Arrays to Realize Unidirectional Needle-Like Radiation by Ziolkowski, Richard W.

“…For nearly a century, the concept of needle radiation has captured the attention of the electromagnetics communities in both physics and engineering, with…”
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Metamaterial-based efficient electrically small antennas by Ziolkowski, Richard W., Erentok, Aycan

“…A metamaterial paradigm for achieving an efficient, electrically small antenna is introduced. Spherical shells of homogenous, isotropic negative permittivity…”
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Low Profile, Broadside Radiating, Electrically Small Huygens Source Antennas by Ziolkowski, Richard W.

“…It is demonstrated numerically that a metamaterial-inspired, low profile (height approximately λ/80), electrically small (ka = 0.45) Huygens source antenna can…”
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Metamaterial-Inspired Efficient Electrically Small Antennas by Erentok, A., Ziolkowski, R.W.

“…Planar two-dimensional (2D) and volumetric three-dimensional (3D) metamaterial-inspired efficient electrically-small antennas that are easy to design; are easy…”
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Wirelessly Powered Light and Temperature Sensors Facilitated by Electrically Small Omnidirectional and Huygens Dipole Antennas by Lin, Wei, Ziolkowski, Richard W

“…Wirelessly powered, very compact sensors are highly attractive for many emerging Internet-of-things (IoT) applications; they eliminate the need for on-board…”
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Single, Dual and Tri-Band-Notched Ultrawideband (UWB) Antennas Using Capacitively Loaded Loop (CLL) Resonators by Chia-Ching Lin, Peng Jin, Ziolkowski, R. W.

“…Two compact, printed, ultrawideband (UWB) monopole antennas with tri-band notched characteristics are reported. The notched filters are achieved by introducing…”
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Electrically Small Huygens Antenna-Based Fully-Integrated Wireless Power Transfer and Communication System by Lin, Wei, Ziolkowski, Richard W.

“…This paper introduces the first reported electrically small Huygens dual-functional wireless power transfer (WPT) and communication system operating in the…”
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A Terahertz (THz) Single-Polarization-Single-Mode (SPSM) Photonic Crystal Fiber (PCF) by Yang, Tianyu, Ding, Can, Ziolkowski, Richard W, Guo, Y Jay

“…This paper presents a novel approach to attain a single-polarization-single-mode (SPSM) photonic crystal fiber (PCF) in the terahertz (THz) regime. An initial…”
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Analytical and Equivalent Circuit Models to Elucidate Power Balance in Scattering Problems by Liberal, I., Ziolkowski, R. W.

“…Analytical and equivalent circuit models are presented to elucidate the balance of powers in scattering processes. Specifically, closed-form expressions of the…”
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Custom-Designed Electrically Small Huygens Dipole Antennas Achieve Efficient, Directive Emissions Into Air When Mounted on a High Permittivity Block by Ziolkowski, Richard W.

“…System-on-Chip (SoC) applications include embedded systems and mobile computing platforms. They will play major roles in fifth generation (5G) wireless…”
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Active Metamaterial-Inspired Broad-Bandwidth, Efficient, Electrically Small Antennas by Ning Zhu, Ziolkowski, R. W.

“…Realistic designs of broad-bandwidth metamaterial-inspired electric and magnetic antennas are characterized numerically. By augmenting their narrow bandwidth…”
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A Study of Low-Profile, Broadside Radiation, Efficient, Electrically Small Antennas Based on Complementary Split Ring Resonators by Ming-Chun Tang, Ziolkowski, Richard W.

“…The designs and performance characteristics of several electrically small antennas based on complementary split ring resonators (CSRRs) are reported. A…”
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Characteristics of Epitaxial Graphene on SiC/Si Substrates in the Radio Frequency Spectrum by Katzmarek, David A., Yang, Yang, Ghasemian, Mohammad B., Kalantar-Zadeh, Kourosh, Ziolkowski, Richard W., Iacopi, Francesca

“…Graphene is expected to bring substantial benefits for high-frequency applications, however, most of the studies in this area are based on theory. Here, the…”
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Design, fabrication, and testing of double negative metamaterials by Ziolkowski, R.W.

“…The design, fabrication, and testing of several metamaterials that exhibit double negative (DNG) medium properties at X band frequencies are reported. DNG…”
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A Controllable Plasmonic Resonance in a SiC-Loaded Single-Polarization Single-Mode Photonic Crystal Fiber Enables Its Application as a Compact LWIR Environmental Sensor by Yang, Tianyu, Ding, Can, Ziolkowski, Richard W., Guo, Y. Jay

“…Near-perfect resonant absorption is attained in a single-polarization single-mode photonic crystal fiber (SPSM PCF) within the long-wave infrared (LWIR) range…”
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Size-dependent permittivity and intrinsic optical anisotropy of nanometric gold thin films: a density functional theory study by Laref, Slimane, Cao, Jiangrong, Asaduzzaman, Abu, Runge, Keith, Deymier, Pierre, Ziolkowski, Richard W, Miyawaki, Mamoru, Muralidharan, Krishna

“…Physical properties of materials are known to be different from the bulk at the nanometer scale. In this context, the dependence of optical properties of…”
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Simplified Tightly-Coupled Cross-Dipole Arrangement for Base Station Applications by Ding, Can, Sun, Haihan, Ziolkowski, Richard W., Guo, Y. Jay

“…The electromagnetic fundamentals that govern the performance characteristics of dual-polarized tightly coupled cross-dipoles that are widely used in cellular…”
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Wave propagation in media having negative permittivity and permeability by Ziolkowski, R W, Heyman, E

“…Wave propagation in a double negative (DNG) medium, i.e., a medium having negative permittivity and negative permeability, is studied both analytically and…”
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Mixtures of Multipoles-Should They Be in Your EM Toolbox? by Ziolkowski, Richard W.

“…Multipole expansions are an essential analysis tool in the foundations of the descriptions of the electromagnetic fields radiated by electric and magnetic…”
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