Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Maher M. Abd-Elrazzak"'
Autor:
Maher M. Abd-Elrazzak
Publikováno v:
Active and Passive Electronic Components, Vol 2007 (2007)
Externí odkaz:
https://doaj.org/article/72af89c8dfee4e13ae93f43cbd55c9da
Publikováno v:
Wireless Personal Communications. 101:1019-1055
Wireless sensor network (WSN) is a group of small power-constrained nodes that sense data and communicate it to the base station (BS). These nodes cover a vast region of interest (ROI) for several purposes according to the application need. The first
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7416639e32d0b632a163f3ebbbda27ef
https://doi.org/10.1007/s11277-018-5747-9
https://doi.org/10.1007/s11277-018-5747-9
Autor:
Maher M. Abd Elrazzak, M. F. Alsharekh
Publikováno v:
Active and Passive Electronic Components, Vol 2008 (2008)
A compact wideband stacked patch antenna is presented for the applications of GPS systems. This antenna covers the L1, L2, and L5 GPS bands of operating frequencies 1.575, 1.227, and 1.176 GHz, respectively. High permittivity dielectric materials are
Externí odkaz:
https://doaj.org/article/39559f6911e44717a89d337deb77391c
Publikováno v:
Computer Networks. 114:51-66
Recently, researchers introduced energy-efficient dynamic routing protocols for wireless sensor networks to avoid the premature end of network lifetime. This paper addresses the routing hole problem due to energy depletion and the trade-off between t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::687062515d7845b54b21299738dd7f55
https://doi.org/10.1016/j.comnet.2016.12.011
https://doi.org/10.1016/j.comnet.2016.12.011
Autor:
Salah S. A. Obayya, Moataza Hindy, Amr M. Abdelghani, Maher M. Abd-Elrazzak, Mohamed Farhat O. Hameed
Publikováno v:
IET Optoelectronics. 8:210-216
A novel design of highly birefringent tellurite liquid crystal photonic crystal fibres (PCFs) with low confinement loss and high non-linearity is introduced. The simulation results are obtained by using full-vectorial finite-difference method. The an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed55691aa0073e9527c5c9377b6948d4
https://doi.org/10.1049/iet-opt.2013.0116
https://doi.org/10.1049/iet-opt.2013.0116
Autor:
Mohamed Farhat O. Hameed, Shaimaa I. Azzam, Maher M. Abd-Elrazzak, Salah S. A. Obayya, H. A. El-Mikaty, Nihal F. F. Areed
Publikováno v:
IEEE Photonics Technology Letters. 26:1633-1636
An all-dielectric transverse electric (TE)-/transverse magnetic (TM)-pass polarizer based on silicon-on-insulator (SoI) is proposed and analyzed. The symmetric etching of the silicon nanowire with specific values allows the cutoff of the undesired po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e22ab63585708771b20217e21763e3d
https://doi.org/10.1109/lpt.2014.2329416
https://doi.org/10.1109/lpt.2014.2329416
Autor:
Salah S. A. Obayya, Maher M. Abd-Elrazzak, Rosa Letizia, Mohamed Farhat O. Hameed, Nabeil A. Abujnah
Publikováno v:
IET Optoelectronics. 7:63-70
In this study, a novel design of coupled-resonator optical waveguide delay line based on slotted ring resonators (SCROW) is proposed and analysed. The coupling efficiency between the resonators, which can be controlled either by changing the slot pos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fbaa43428103fa5ca22fb57a0165986
https://doi.org/10.1049/iet-opt.2012.0057
https://doi.org/10.1049/iet-opt.2012.0057
Autor:
Maher M. Abd-Elrazzak, Salah S. A. Obayya, Nabeil A. Abujnah, Mohamed Farhat O. Hameed, Rosa Letizia
Publikováno v:
Optical and Quantum Electronics. 45:503-515
In this paper, slotted microcavity ring resonators based optical storage devices are proposed and analyzed by means of multiresolution time domain technique. The effect of the structure geometrical parameters on the coupling efficiency, normalized tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39b6ced5a48adbd50c75fdb314c5a28f
https://doi.org/10.1007/s11082-013-9666-4
https://doi.org/10.1007/s11082-013-9666-4
Publikováno v:
Journal of Lightwave Technology. 31:81-86
A novel design of ultra-compact polarization rotator (PR) based on triangular lattice silica photonic crystal fiber is proposed and analyzed. The suggested design has a central air hole which can be shifted in x and y directions to achieve complete p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adb59d843e458b3dd602168a703fb9bd
https://doi.org/10.1109/jlt.2012.2228631
https://doi.org/10.1109/jlt.2012.2228631
Autor:
Salah S. A. Obayya, Mohamed Farhat O. Hameed, A. M. Heikal, Maher M. Abd-Elrazzak, Youssef M. El-Toukhy, Mohamed Hussein
Publikováno v:
Optics express. 24(14)
In this paper, a novel design of tapered dipole nanoantenna is introduced and numerically analyzed for energy harvesting applications. The proposed design consists of three steps tapered dipole nanoantenna with rectangular shape. Full systematic anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ef7c6ed91eb42234bc605a3fb889e9a
https://pubmed.ncbi.nlm.nih.gov/27410898
https://pubmed.ncbi.nlm.nih.gov/27410898