Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Sumin DA"'
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 3, Pp 543-556 (2024)
A set of 28 GHz close-to-ground propagation measurements are conducted for different rural outdoor scenarios at the National Spectrum Centre, Aberystwyth. A bespoke correlation based channel sounder and horn antennas are employed in the measurement s
Externí odkaz:
https://doaj.org/article/6dc192a79d27406195f1d29b49a6164d
Autor:
Edward A. Ball, Sumin David Joseph
Publikováno v:
IEEE Open Journal of Instrumentation and Measurement, Vol 2, Pp 1-11 (2023)
This article describes a novel, bespoke, and low-cost 28-GHz RF TX and RX front end design that has been combined with a commercial Software-Defined Radio and Raspberry Pi controller to realize a portable propagation measurement system for the 28-GHz
Externí odkaz:
https://doaj.org/article/0daedb413bde4f3ea706dca90593f91f
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 626-640 (2023)
An eight element Subsampling Time Modulated Array (STMA) operating in receive mode with a carrier at 2.4 GHz is presented and demonstrated using bespoke Radio Frequency (RF) hardware. Each STMA cell incorporates subsampling functionality, with the sa
Externí odkaz:
https://doaj.org/article/b03834a1e6154e55949b0f58a7106c0f
Autor:
Sumin David Joseph, Edward A. Ball
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 254-261 (2023)
This paper presents a millimeter wave series-fed microstrip line antenna array with low side lobes. For millimeter-wave beam forming applications, compact series fed arrays with very small horizontal width and low side lobes are very much required. T
Externí odkaz:
https://doaj.org/article/eb61de68d4594dc7b959f863714833d6
Publikováno v:
IEEE Access, Vol 9, Pp 4665-4672 (2021)
A high-efficiency compact broadband rectifier is developed for wireless energy harvesting. A novel three-stage impedance matching technique is utilized in a broadband rectifier design to achieve high conversion efficiency with a compact size. In the
Externí odkaz:
https://doaj.org/article/6511a00b75c44fc79de53dba171930d1
Publikováno v:
IEEE Access, Vol 8, Pp 82035-82041 (2020)
A novel wire bonded GaN rectifier for high-power wireless power transfer (WPT) applications is proposed. The low breakdown voltage in silicon Schottky diodes limits the high-power operations of microwave rectifier. The proposed microwave rectifier co
Externí odkaz:
https://doaj.org/article/9d020a0ae09843c5980df44ee29f634d
Publikováno v:
IEEE Access, Vol 6, Pp 65935-65944 (2018)
This paper proposes a new design of a dual-polarized base station antenna for sub-6-GHz 5G communication covering the band from 3.3 to 3.8 GHz. The proposed antenna offers a good impedance matching across the desired frequency band with $\text {VSWR}
Externí odkaz:
https://doaj.org/article/06ad4eaa7a5b4f18ab972193ea1d4a57
Autor:
Ahmed Alieldin, Yi Huang, Stephen J. Boyes, Manoj Stanley, Sumin David Joseph, Qiang Hua, Dajun Lei
Publikováno v:
IEEE Access, Vol 6, Pp 49209-49216 (2018)
This paper proposes a new design of a triple-band dual-polarized indoor base station antenna for mobile communication systems serving the 2G, 3G, 4G, and the new sub-6 GHz 5G applications. The design consists of two orthogonal dipole antennas to prov
Externí odkaz:
https://doaj.org/article/4a5171d0f16d4ded80b7cfc711456bf9
Autor:
Ahmed Alieldin, Yi Huang, Stephen J. Boyes, Manoj Stanley, Sumin David Joseph, Bahaa Al-Juboori
Publikováno v:
IEEE Access, Vol 6, Pp 50260-50271 (2018)
This paper proposes a novel design of a dual-broadband dual-polarized antenna for mobile communication base stations. The proposed antenna is Fylfot-shaped and covers 0.7-0.96 and 1.7-2.7 GHz simultaneously (with S11 ≤ -10 dB), which are the two co
Externí odkaz:
https://doaj.org/article/9fe6fa4b3f194c988244b04dbbb88fa9
Autor:
Shafranskaya KS; Research Institute for Complex Problems of Cardiovascular Diseases, Kemerovo, Russia.; Kemerovo State Medical Academy, Kemerovo, Russia., Kuzmina OK; Research Institute for Complex Problems of Cardiovascular Diseases, Kemerovo, Russia.; Kemerovo State Medical Academy, Kemerovo, Russia., Sumin DA; Research Institute for Complex Problems of Cardiovascular Diseases, Kemerovo, Russia.; Kemerovo State Medical Academy, Kemerovo, Russia., Krivoshapova KY; Research Institute for Complex Problems of Cardiovascular Diseases, Kemerovo, Russia.; Kemerovo State Medical Academy, Kemerovo, Russia., Uchasova YG; Research Institute for Complex Problems of Cardiovascular Diseases, Kemerovo, Russia.; Kemerovo State Medical Academy, Kemerovo, Russia., Ivanov SV; Research Institute for Complex Problems of Cardiovascular Diseases, Kemerovo, Russia.; Kemerovo State Medical Academy, Kemerovo, Russia., Zykov MV; Research Institute for Complex Problems of Cardiovascular Diseases, Kemerovo, Russia.; Kemerovo State Medical Academy, Kemerovo, Russia., Kashtalap VV; Research Institute for Complex Problems of Cardiovascular Diseases, Kemerovo, Russia.; Kemerovo State Medical Academy, Kemerovo, Russia., Barbarash OL; Research Institute for Complex Problems of Cardiovascular Diseases, Kemerovo, Russia.; Kemerovo State Medical Academy, Kemerovo, Russia.
Publikováno v:
Kardiologiia [Kardiologiia] 2016 Oct; Vol. 56 (10), pp. 22-29.