Zobrazeno 1 - 10
of 305
pro vyhledávání: '"Daniel Erni"'
Autor:
Fawad Sheikh, Andreas Prokscha, Aman Batra, Dien Lessy, Baha Salah, Benedikt Sievert, Marvin Degen, Andreas Rennings, Mandana Jalali, Jan Taro Svejda, Pooya Alibeigloo, Christian Preuss, Enes Mutlu, Robin Kress, Simone Clochiatti, Kevin Kolpatzeck, Tobias Kubiczek, Ingrid Ullmann, Konstantin Root, Fabian Brix, Ute Kramer, Martin Vossiek, Jan C. Balzer, Nils G. Weimann, Thomas Kaiser, Daniel Erni
Publikováno v:
IEEE Journal of Microwaves, Vol 3, Iss 3, Pp 913-937 (2023)
In this paper, new concepts for continuous 24/7 real-time monitoring of plants and insects with miniaturized terahertz (THz) systems are described and experimentally tested. Thus, for the first time, small-scale insights into the instantaneous plant
Externí odkaz:
https://doaj.org/article/87c6a0661e4a41679ab991f3fb4ce061
Autor:
Fawad Sheikh, Andreas Prokscha, Johannes M. Eckhardt, Tobias Doeker, Naveed A. Abbasi, Jorge Gomez-Ponce, Benedikt Sievert, Jan Taro Svejda, Andreas Rennings, Jan Barowski, Christian Schulz, Ilona Rolfes, Daniel Erni, Andreas F. Molisch, Thomas Kurner, Thomas Kaiser
Publikováno v:
IEEE Journal of Microwaves, Vol 3, Iss 1, Pp 289-304 (2023)
In recent years, terahertz (THz) systems have become an increasingly popular area of research thanks to their unique properties such as extremely high data rates towards Tb/s, submillimeter localization accuracy, high resolution remote sensing of mat
Externí odkaz:
https://doaj.org/article/7f3e4b1465624b8786c2f2b1ca087f1d
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 10, p 1864 (2023)
Underwater electric potential (UEP) ship signatures are evaluated at a test site that provides only incoherent data from electric field sensors placed on the seabed. This paper shows how these data sets can be used to extract significant seabed param
Externí odkaz:
https://doaj.org/article/ee50b54a99fa4b1bab185e0db520e933
Autor:
Xuan Liu, Lisa Schmitt, Benedikt Sievert, Jonas Lipka, Chong Geng, Kevin Kolpatzeck, Daniel Erni, Andreas Rennings, Jan C. Balzer, Martin Hoffmann, Andreas Czylwik
Publikováno v:
IEEE Access, Vol 10, Pp 84458-84472 (2022)
With the increase in potential uses of terahertz technology, the need for terahertz transceivers with application-oriented adaptive radiation patterns has emerged. Reconfigurable reflectarrays consisting of actuated sub-wavelength reflectors have bee
Externí odkaz:
https://doaj.org/article/09bd0f0334be4d14acecc6c8e274df7c
Autor:
Mohamed Haj Hassan, Benedikt Sievert, Jan Taro Svejda, Aya Mostafa Ahmed, Jan Barowski, Andreas Rennings, Ilona Rolfes, Aydin Sezgin, Daniel Erni
Publikováno v:
IEEE Access, Vol 9, Pp 9800-9811 (2021)
Reducing the strong beam divergence inherent to Orbital Angular Momentum waves (also known as OAM waves or vortex waves), a tailored lens and a tailored reflector are presented in this study. The generation of the OAM waves is accomplished by a Unifo
Externí odkaz:
https://doaj.org/article/5306d0105ac34bd0ae9e2cf6f8b3157b
Autor:
Arkadi Akopian, Guga Burduli, Vakhtang Jandieri, Hiroshi Maeda, Wonbin Hong, Ahmed Abdelmottaleb Omar, Kiyotoshi Yasumoto, Douglas H. Werner, Daniel Erni
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 1, Pp 448-455 (2020)
Functional post-wall waveguides and waveguide based compact passive circuits - namely bandpass filters - that are formed by introducing additional metallic or dielectric posts inside the post-wall waveguide are analyzed. Scattering parameters (S-para
Externí odkaz:
https://doaj.org/article/adfa6be67dbe45af97eb9a8f2931c90d
Publikováno v:
IEEE Access, Vol 8, Pp 89680-89691 (2020)
This paper presents an automatic characterization system for mm-wave antennas based on a spherical positioning system. It features network-analysis based far-field- and S-parameter measurement of probe- and waveguide-fed antennas between 220 GHz and
Externí odkaz:
https://doaj.org/article/cbb9dbff39e44816868f51822d0a09fb
Autor:
Mohamed Haj Hassan, Benedikt Sievert, Jan Taro Svejda, Ali Alhaj Abbas, Alejandro Jimenez-Saez, Aya Mostafa Ahmad, Martin Schubler, Andreas Rennings, Klaus Solbach, Thomas Kaiser, Rolf Jakoby, Aydin Sezgin, Daniel Erni
Publikováno v:
IEEE Access, Vol 8, Pp 218729-218738 (2020)
In this article, a uniform helically arranged dielectric resonator array can generate Orbital Angular Momentum waves (OAM) causing a conversion of OAM mode orders m from an incoming mode min to an outgoing mode mout. The operating frequency is set as
Externí odkaz:
https://doaj.org/article/827e2a04eb7c4fa780ece100345f545b
Autor:
Kevin Jerbic, Kevin Neumann, Jan Taro Svejda, Benedikt Sievert, Andreas Rennings, Daniel Erni
Publikováno v:
IEEE Access, Vol 8, Pp 223806-223826 (2020)
Most calibration schemes for reflection-based tissue spectroscopy in the mm-wave/ THz-frequency range are based on homogenized, frequency-dependent tissue models where macroscopic material parameters have either been determined by measurement or calc
Externí odkaz:
https://doaj.org/article/a7084020f29442178ad29fd919d7415e
Publikováno v:
Sensors, Vol 21, Iss 22, p 7725 (2021)
Magnetic induction tomography (MIT) is a contactless, low-energy method used to visualize the conductivity distribution inside a body under examination. A particularly demanding task is the three-dimensional (3D) imaging of voluminous bodies in the b
Externí odkaz:
https://doaj.org/article/3726fb1164144ef681515f5a3331b30a