Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Eldad Holdengreber"'
Autor:
Eran Rosenberg, Yoav Koral, Achimeir Mekeyess, Moshe Mizrachi, Doron Solomon, Eldad Holdengreber, Shmuel E. Schacham, Eliyahu Farber
Publikováno v:
IEEE Access, Vol 11, Pp 114316-114321 (2023)
The increasing demand for cellular communication channels calls for multichannel solutions. Using one antenna for each channel results in a high density of antennas at the compact cellular station front, which generates inter-channel interference. Th
Externí odkaz:
https://doaj.org/article/9558a5979e6347f7964d76ac971d2a4a
Autor:
Daniel Shaked, Eldad Holdengreber
Publikováno v:
Energies, Vol 15, Iss 19, p 7146 (2022)
An innovative method to improve the efficiency of a single-phase electric-grid 125 kVA, 50 Hz shell type and distribution transformer is presented. The diamagnetism characteristic of a bulk high-temperature superconductor (HTS), designed in a specifi
Externí odkaz:
https://doaj.org/article/fb1249567a5e4082ac78ea28a18375af
Publikováno v:
Sensors, Vol 21, Iss 16, p 5291 (2021)
Muteness at its various levels is a common disability. Most of the technological solutions to the problem creates vocal speech through the transition from mute languages to vocal acoustic sounds. We present a new approach for creating speech: a techn
Externí odkaz:
https://doaj.org/article/f76d66ac52d045558860d42a812c1e47
Autor:
Yakir Dahan, Eldad Holdengreber, Elichai Glassner, Oz Sorkin, Shmuel E. Schacham, Eliyahu Farber
Publikováno v:
Materials, Vol 14, Iss 12, p 3360 (2021)
A new measurement technique of electrical parameters of superconducting thin films at the Very High Frequency (VHF) range is described, based on resonators with microstrip (MS) structures. The design of an optimal resonator was achieved, based on a t
Externí odkaz:
https://doaj.org/article/bb8fecee162b41c18285a9538e5f26f5
Autor:
Eldad Holdengreber, Aviv Glezer Moshe, Shmuel E. Schacham, Moshe Mizrahi, Dhasarathan Vigneswaran, Eliyahu Färber
Publikováno v:
Applied Sciences, Vol 10, Iss 18, p 6482 (2020)
Superconducting Josephson junctions have major advantages as detectors of millimeter wave radiation. Frequency of the radiation can be easily derived from the Shapiro steps of the current-voltage characteristics. However, system performance is highly
Externí odkaz:
https://doaj.org/article/2cea5581c08543208d79f4f2970ad2c1
Autor:
Jayshri Kulkarni, Chow-Yen-Desmond Sim, Arpan Desai, Eldad Holdengreber, Rajendra Talware, Vivek Deshpande, Truong Khang Nguyen
Publikováno v:
Arabian Journal for Science and Engineering. 47:14087-14103
Publikováno v:
IEEE Transactions on Applied Superconductivity. 30:1-6
Multichannel very high frequency (VHF) high-power transmission system, based on a 90°, high-temperature superconductor YBa2Cu3O7 (YBCO) hybrid coupler is presented. The small dimension coupler performs as a phase shifter utilized for matching severa
Publikováno v:
Electronics; Volume 11; Issue 1; Pages: 102
Electronics, Vol 11, Iss 102, p 102 (2022)
Electronics, Vol 11, Iss 102, p 102 (2022)
A high-performance S-band down-conversion microstrip mixer, for operation from 77 K to 300 K, is described. The balanced mixer combines a 90 degree hybrid coupler, two Schottky diodes, a band pass filter, and a low pass filter. The coupler phase shif
Autor:
Eldad Holdengreber
Publikováno v:
2020 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD).
Josephson junctions play an important role in the advanced of THz radiation detection. Most of the Josephson detectors are integrated with a single planar antenna. To improve the detection sensitivity a Josephson junction serial antenna array is prop
Publikováno v:
Journal of Electromagnetic Waves and Applications. 33:193-203
A high sensitivity rounded bow-tie antenna was optimized based on electromagnetic simulations. The bicrystal Josephson junction detector with a thin layer of YBCO was located exactly at the bicrystal misorientation point at the center of the antenna.