Browsing by Subject "Loading"

Article

Cationic star polymer siRNA transfectants interconnected with a piperazine-based cationic cross-linker

Pafiti, Kyriaki S.; Patrickios, Costas S.; Georgiou, Theoni K.; Yamasaki, E. N.; Mastroyiannopoulos, Nikolaos P.; Phylactou, Leonidas A. (2012)

Cationic star polymers of 2-(dimethylamino)ethyl methacrylate (DMAEMA) were prepared via the "arm-first" method under group transfer polymerization (GTP) conditions, and were interconnected using a novel, hydrophilic, ...

Article

Compact Wideband Loop Antenna Partially Loaded With Mu-Negative Metamaterial Unit Cells for Directivity Enhancement

Ahdi Rezaeieh, S.; Antoniades, Marcos A.; Abbosh, A. M. (2016)

A wideband and unidirectional loop antenna partially loaded with mu-negative (MNG) metamaterial unit cells is presented. To reduce the electrical size of the antenna, its first resonance is formed by capacitively loading ...

Article

A Directivity-Band-Dependent Triple-Band and Wideband Dual-Polarized Monopole Antenna Loaded with a Via-Free CRLH Unit Cell

Jamilan, S.; Antoniades, Marcos A.; Nourinia, J.; Azarmanesh, M. N. (2015)

A printed triple-band and wideband dual-polarized meander-line monopole antenna with a single CRLH metamaterial loading is presented. The metamaterial loading improves the impedance matching and causes the proposed antenna ...

Article

Method of decoupling and independently tuning the second mode of a microstrip-fed slot antenna using series inductive loading

Boldaji, A.; Antoniades, Marcos A. (2013)

In this letter, a systematic method of decoupling and tuning the second mode of a half-wavelength microstrip-fed slot antenna is presented. This is achieved by introducing a series lumped inductive load at the center of ...

Article

Miniaturization of Planar Yagi Antennas Using Mu-Negative Metamaterial-Loaded Reflector

Ahdi Rezaeieh, S.; Antoniades, Marcos A.; Abbosh, A. M. (2017)

A technique to reduce the size and enhance the operating bandwidth (BW) of planar Yagi antennas, while maintaining their unidirectional radiation characteristics, is proposed in this paper. In this technique, the reflector ...

Article

MRI-based morphological modeling, synthesis and characterization of cardiac tissue-mimicking materials

Kossivas, Fotis; Angeli, Stelios I.; Kafouris, Demetris; Patrickios, Costas S.; Tzagarakis, V.; Constantinides, Christakis (2012)

This study uses standard synthetic methodologies to produce tissue-mimicking materials that match the morphology and emulate the in vivo murine and human cardiac mechanical and imaging characteristics, with dynamic mechanical ...

Article

Multiband compact printed dipole antennas using NRI-TL metamaterial loading

Antoniades, Marcos A.; Eleftheriades, G. V. (2012)

A compact, fully-printed negative-refractive-index transmission-line (NRI-TL) metamaterial-loaded dipole antenna is proposed, which exhibits multiband resonant characteristics that are not harmonically related. The multiband ...

Conference Object

Negative-refractive-index transmission-line metamaterial-loaded dipole antennas

Antoniades, Marcos A.; Eleftheriades, G. V. (2012)

Several compact, fully-printed negative-refractive-index transmission-line (NRI-TL) metamaterial-loaded dipole antennas are proposed. The antennas achieve multi-band behaviour by loading a host dipole antenna with series ...