Proving the Feasibility of D-Band Single SiGe MMIC Vector Network Analyzer Extension Modules With Large System Dynamic Range

Autor: Justin Romstadt, Lukas Dierkes, Stephan Hauptmeier, Tobias T. Braun, Hakan Papurcu, Jens Richter, Pascal Stadler, Ahmad Zaben, Klaus Aufinger, Jan Barowski, Nils Pohl

Publikováno v: IEEE Journal of Microwaves, Vol 4, Iss 4, Pp 706-720 (2024)

The need for size and cost-efficient vector network analyzer (VNA) frequency extension modules (VNAX module) is driven by new applications in research and industry. Responding to this potential demand, we present a novel D-band VNAX module based on a

Externí odkaz: https://doaj.org/article/d49649fae04b4e68b48fb413deffc8ca

A D-Band Vector Network Analyzer Extension Module Based on a SiGe Reflectometer MMIC

Autor: Nils Pohl, Jan Barowski, Klaus Aufinger, Marvin Krüner, Ahmad Zaben, Tobias T. Braun, Stephan Hauptmeier, Justin Romstadt

Stimulated by a rising interest in the D-Band in research and industry, the demand for accessible measurement equipment is increasing. As the frequency range of vector network analyzers (VNAs) is insufficient, vector network analyzer extension (VNAX)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::381f4bbfefbd0c560713437546c4c5a2
https://doi.org/10.36227/techrxiv.22620058

Inter-ocular asymmetry of retinal parameters in Caucasian healthy children and young adults measured with optical coherence tomography

Autor: Optipunt Zaben, Figueres E , Spain, Zeyad Alzaben, Opticalia Olot, Olot E , Spain, Miguel A Zapata, Ahmad Zaben

Publikováno v: International Eye Research. 1:24-29

AIM: To evaluate retinal parameters in a sample of healthy young Caucasian adults to define the normal or physiological range of inter-ocular asymmetry in this particular age and ethnic group. METHODS: Study sample consisted of 37 Caucasian children

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea889a08a00f058368308848591a8d88
https://doi.org/10.18240/ier.2020.01.05

INTEROCULAR ASYMMETRY IN CHOROIDAL THICKNESS AND RETINAL SENSITIVITY IN HIGH MYOPIA

Autor: Zeyad Alzaben, Genís Cardona, Miguel A Zapata, Ahmad Zaben

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

PURPOSE:: To investigate the normal range of interocular asymmetry in choroidal thickness and retinal sensitivity in high myopia without ocular fundus manifestations and to determine the relationship between interocular asymmetry and refractive error

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7642bc828f9eba867aa51e492b1ec98a
https://pubmed.ncbi.nlm.nih.gov/28682947

On Line Health Monitoring for Cracked Simply Supported Fiber Reinforced Composite Structures

Autor: Ahmad Zaben, Mohamed Gaith, Naeem Bawayah, Mosa’ab Farraj, Yazan Israwi

Publikováno v: ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2.

A crack in structural member introduces local flexibility which is function of crack depth and location. This flexibility changes the dynamic behavior of the system and its stability characteristics. A continuous cracked beam vibration theory is impl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ce37262b21982147fbd6e37763467370
https://doi.org/10.1115/smasis2010-3751