Results 11 to 20 of about 126,874 (155)

Double-Layered Frequency Selective Surface Superstrate Using Ring Slot and Dipole-Shaped Unit Cell Structure

Journal of electromagnetic engineering and science, 2010
In this paper, a double-layered frequency selective surface(FSS) superstrate was built and tested. The unit cell of the proposed FSS consists of a ring slot and a dipole-shaped structure and shows a complementary frequency response. Each unit cell is printed on two sides of a substrate.
Hong-Min Lee, Yong-Jin Kim
openaire   +2 more sources

A Miniaturized and High Gain Double-Slot Vivaldi Antenna Using Wideband Index-Near-Zero Metasurface

IEEE Access, 2018
In this paper, a wideband, miniaturized, and high gain double-slot Vivaldi antenna is proposed. First, a corner cutting technique is adopted to broaden the frequency band.
Shuangshuang Zhu, Haiwen Liu, Pin Wen, Lixia Du, Jiafeng Zhou   +4 more
doaj   +1 more source

Design Low Crosstalk Ring-Slot Array Structure for Label-Free Multiplexed Sensing

Sensors, 2014
We theoretically demonstrate a low crosstalk ring-slot array structure used for label-free multiplexed sensing. The proposed sensors array is based on an array of three ring-slot and input/output line defect coupling waveguides. Each ring-slot cavity has
Lijun Huang, Huiping Tian, Jian Zhou, Yuefeng Ji   +3 more
doaj   +1 more source

Bandwidth comparison of rectangular and offset cross‐slot frequency‐selective surface polarisation transformers

Electronics Letters, 2021
This letter compares the 3 dB axial ratio (AR) bandwidth (BW) of transmission mode single‐screen linear‐to‐circular polarisation convertors based on three different slot topologies.
Sarah Clendinning, Robert Cahill, Dmitry Zelenchuk, Vincent Fusco   +3 more
doaj   +1 more source

Highly Selective Terahertz Bandpass Filters Based on Trapped Mode Excitation [PDF]

, 2009
We present two types of metamaterial-based spectral bandpass filters for the terahertz (THz) frequency range. The metamaterials are specifically designed to operate for waves at normal incidence and to be independent of the field polarization.
Behdad, Chan, Chen, Chen, Fedotov, Harris, Li, Liu, Liu, Mackay, Marco Rahm, Oliver Paul, Padilla, Papasimakis, Paul, Pendry, René Beigang, Smith, Strikwerda, Tassin, Veselago, Zhang   +21 more
core   +1 more source

Design of Storage Allocation Using Interaction Frequency Heuristic-Order Oriented Slotting Approach to Reduce Delay Time on Traveling Searching Activities in Refinery Unit V Warehouse PT XYZ

Jurnal Rekayasa Sistem Industri, 2018
<p><strong> </strong>Refinery Unit (RU) V is a processing company owned by PT XYZ located in Balikpapan. Refinery Unit V has twelve warehouses with four warehouses being the main focus in this research of RGM, RMS, RIN, and RSP used to store products for refinery maintenance processes.
Ardi Kelana Putra, Ari Yanuar Ridwan, Rio Aurachman   +2 more
openaire   +3 more sources

Algorithms for Fast Aggregated Convergecast in Sensor Networks [PDF]

, 2008
Fast and periodic collection of aggregated data is of considerable interest for mission-critical and continuous monitoring applications in sensor networks.
Anil Kumar, V.S., Durmaz Incel, O., Ghosh, A., Krishnamachari, B.   +3 more
core   +7 more sources

Tunable Liquid Crystal Based Phase Shifter with a Slot Unit Cell for Reconfigurable Reflectarrays in F-Band

Applied Sciences, 2018
An electrically tuned phase shifter based on the single slot unit cell and liquid crystal for a reconfigurable reflectarray antenna was presented. The simulation and measured results obtained at the F-band were used to demonstrate that the dielectric ...
Sheng Gao, Jun Yang, Peng Wang, Andong Zheng, Hongbo Lu, Guangsheng Deng, Weien Lai, Zhiping Yin   +7 more
doaj   +1 more source

A Wideband Transmitarray Antenna Design Based on the Transmission Characteristic of the UnitCell [PDF]

AUT Journal of Electrical Engineering, 2023
In this paper, a procedure is proposed to design a wideband transmitarray upon a specified frequency band. In this way, the phase control parameter of a unit cell is adjusted in a suggested range, ensuring linear phase change and low transmission loss ...
Mohammadreza Salimi Beni, Mohammad Zoofaghari   +1 more
doaj   +1 more source

A slot antenna array with low mutual coupling for use on small mobile terminals [PDF]

, 2011
In order to take full advantage of the benefits to be obtained by using MIMO techniques for mobile communications, it is necessary to use an antenna array which is both compact and also has low mutual coupling between ports.
Dumanli, S, Paul, DL, Railton, CJ
core   +2 more sources