Zobrazeno 1 - 10
of 3 780
pro vyhledávání: '"E., Anagnostou"'
Autor:
Lucia Nováková
Publikováno v:
The Classical Review. 73:207-210
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1917de3a40a9cabe939d88b20ee63a62
https://doi.org/10.1017/s0009840x22002013
https://doi.org/10.1017/s0009840x22002013
Publikováno v:
IEEE Access, Vol 12, Pp 68757-68769 (2024)
A compact antipodal Vivaldi antenna array (AVAA) with ultra-wideband (UWB) beam steering capabilities is presented. The fabricated and measured array prototype has good matching from about 1.5 GHz to 11 GHz (147%) for all ports and can achieve wide a
Externí odkaz:
https://doaj.org/article/f0de29cc0f174126a5c3d4945f912f39
Publikováno v:
IEEE Journal of Microwaves, Vol 4, Iss 2, Pp 213-232 (2024)
A circuit-based calibration system is presented for active phased arrays. In particular, to achieve the desired (and corrected) consecutive phase differences and relative magnitudes between RF channels, a computer controlled circuit system was develo
Externí odkaz:
https://doaj.org/article/032379e35596461f93b2964b65bc03b8
Autor:
Muhammad Nasir, Adnan Iftikhar, Muhammad Farhan Shafique, Birsen Saka, Symeon Nikolaou, Dimitris E. Anagnostou
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 17, Iss 7, Pp 505-517 (2023)
Abstract A novel wideband multilayer dual‐podal Vivaldi antenna with broadband characteristics from 5.5 to 20.82 GHz, is presented. Contrary to traditional Vivaldi antennas that are antipodal‐based, this design is realised by placing a pair of po
Externí odkaz:
https://doaj.org/article/bb100b2aa3414c8495b3e6af29d47382
Publikováno v:
Electronics Letters, Vol 59, Iss 22, Pp n/a-n/a (2023)
Abstract A self‐calibrating circuit system for use within active phased array antennas is presented. The system addresses the issue of unwanted channel phase imbalances and random phase errors which can deteriorate array performance. Basically, unw
Externí odkaz:
https://doaj.org/article/97af418fa7d345de92c347b634972230
Publikováno v:
IEEE Access, Vol 11, Pp 43793-43804 (2023)
Vanadium dioxide (VO2) is characterized using the time-resolved microwave conductivity (TRMC) method for applications requiring reconfigurable microwave frequency selection. We demonstrate that TRMC is a flexible method for determining the microwave
Externí odkaz:
https://doaj.org/article/87cb605640cd41f39dd93a594f0e0a36
Autor:
Younes Sadat-Nejad, Marlee M. Vandewouw, R. Cardy, J. Lerch, M. J. Taylor, A. Iaboni, C. Hammill, B. Syed, J. A. Brian, E. Kelley, M. Ayub, J. Crosbie, R. Schachar, S. Georgiades, R. Nicolson, E. Anagnostou, A. Kushki
Publikováno v:
Frontiers in Child and Adolescent Psychiatry, Vol 2 (2023)
IntroductionAttention-deficit/hyperactivity disorder (ADHD) and autism are multi-faceted neurodevelopmental conditions with limited biological markers. The clinical diagnoses of autism and ADHD are based on behavioural assessments and may not predict
Externí odkaz:
https://doaj.org/article/0f612ea801b740a69623bfc32ec5821f
Autor:
Victoria Gomez-Guillamon Buendia, Symon K. Podilchak, Salvatore Liberto, Tom Walkinshaw, Constantin Constantinides, Dimitris E. Anagnostou, George Goussetis, Maarten Van Der Vorst
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 1341-1350 (2022)
A miniaturized planar Yagi-Uda antenna for integration with PicoSats or other SmallSat missions is proposed. Miniaturization techniques, such as meandering and 1-D artificial dielectric concepts to reduce the guided wavelength, are employed to overco
Externí odkaz:
https://doaj.org/article/3ccd53b639ce41e9afdd1368c1363eed
Autor:
Elisa S. Ramil Brick, John Holland, Dimitris E. Anagnostou, Keith Brown, Marc P. Y. Desmulliez
Publikováno v:
Frontiers in Sensors, Vol 3 (2022)
Agroforestry can be defined as an agroecosystem whereby soil is used holistically and synergistically by various stakeholders including farmers, livestock, and plants. As such, agroforestry offers numerous benefits that include conservation of biodiv
Externí odkaz:
https://doaj.org/article/2702993cffb1426fadd936eb544985ef
Autor:
D. J. Lunt, F. Bragg, W.-L. Chan, D. K. Hutchinson, J.-B. Ladant, P. Morozova, I. Niezgodzki, S. Steinig, Z. Zhang, J. Zhu, A. Abe-Ouchi, E. Anagnostou, A. M. de Boer, H. K. Coxall, Y. Donnadieu, G. Foster, G. N. Inglis, G. Knorr, P. M. Langebroek, C. H. Lear, G. Lohmann, C. J. Poulsen, P. Sepulchre, J. E. Tierney, P. J. Valdes, E. M. Volodin, T. Dunkley Jones, C. J. Hollis, M. Huber, B. L. Otto-Bliesner
Publikováno v:
Climate of the Past, Vol 17, Pp 203-227 (2021)
We present results from an ensemble of eight climate models, each of which has carried out simulations of the early Eocene climate optimum (EECO, ∼ 50 million years ago). These simulations have been carried out in the framework of the Deep-Time Mod
Externí odkaz:
https://doaj.org/article/7b6841f438e54b4f9d2617c7b44cdd2b