Zobrazeno 1 - 10
of 250
pro vyhledávání: '"Mohamed Himdi"'
Publikováno v:
فصلنامه علوم و فناوری فضایی, Vol 17, Iss 3, Pp 28-44 (2024)
This paper presents a novel approach for designing a reconfigurable and steerable antenna utilizing plasma dielectric slabs along the aperture of a pyramidal horn antenna. The antenna provides electronic control over the radiation gain and the direct
Externí odkaz:
https://doaj.org/article/f0d2e7ae8655479ba2da1180f7684cfc
Autor:
Rabia Khan, Waleed Tariq Sethi, Waqar Ahmad Malik, Latif Jan, Muhammad M. Tahseen, Ali M. Almuhlafi, Mohamed Himdi
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-22 (2024)
Abstract This paper presents a novel quad-element array with multiple inputs and multiple outputs (MIMO) designed for 5th generation sub-6 GHz applications. The MIMO system achieves a wide impedance bandwidth, high gain, and high isolation among its
Externí odkaz:
https://doaj.org/article/d3335e7e95a648cf9dc747df41ef28a0
Autor:
S. M. Kayser Azam, Jun Qiang Chan, Mohamadariff Othman, Wong Jee Keen Raymond, Hazlee Azil Illias, Tarik Abdul Latef, A. K. M. Zakir Hossain, Hamaskutty Vettikalladi, Ali M. Almuhlafi, Mohamed Himdi, Abd Karim Abd Rahman
Publikováno v:
IEEE Access, Vol 12, Pp 127718-127730 (2024)
Insulations at high voltage (HV), whether in HVAC or HVDC systems, often encounter an unwanted partial discharge (PD) phenomenon. PD poses a potential danger to HV insulation and can eventually lead to equipment failures. Out of all electromagnetic (
Externí odkaz:
https://doaj.org/article/b1f2d9da33d848d0a55791beca912f6b
Autor:
Muhammad Afzaal Khan, Waleed Tariq Sethi, Waqar Ahmad Malik, Abdul Jabbar, Muhammad Ali Khalid, Ali M. Almuhlafi, Mohamed Himdi
Publikováno v:
IEEE Access, Vol 12, Pp 45187-45201 (2024)
This manuscript demonstrates a comprehensive analysis of a low-profile dual-band flexible omnidirectional wearable antenna, designed for Wireless Body Area Network (WBAN) applications. The proposed antenna is designed and fabricated on a commercially
Externí odkaz:
https://doaj.org/article/8d64fe5bff804901983720e84b4af574
Publikováno v:
Micromachines, Vol 15, Iss 7, p 838 (2024)
This paper describes the design of a hybrid coupler with a continuously variable output phase difference. This is achieved by using reconfigurable transmission lines with electrically tunable lengths controlled by two biasing voltages through varacto
Externí odkaz:
https://doaj.org/article/73efff4ec15c46e48e9f4a975c70fcca
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract This article is focused on the application of plasma technology for the development of microwave lens antennas with electronically controllable radiation gain. With this aim, the analytical background and design procedure for designing a bic
Externí odkaz:
https://doaj.org/article/b2fcaa5f5c1e4bfc9dac1cc58cc86267
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-2 (2023)
Externí odkaz:
https://doaj.org/article/c9fc9d22a015450eab0be9b58114a326
Autor:
Husameldin Abdelrahman Elmobarak, Mohamed Himdi, Xavier Castel, Sharul Kamal Abdul Rahim, Tan Kim Geok
Publikováno v:
IEEE Access, Vol 10, Pp 115663-115672 (2022)
This paper presents an innovative route to fabricate conformal patch antenna arrays based on a flexible mesh-style conductive fabric / E-glass fiber composite laminate with improved performance at microwaves. On the one hand, the ohmic loss in the an
Externí odkaz:
https://doaj.org/article/77cb4ecc5eb148f6ba35c1114b759185
Publikováno v:
IEEE Access, Vol 10, Pp 51093-51099 (2022)
Slotted waveguides are often used when high-power and high-efficiency antennas must be designed and particularly for millimeter waves applications (automotive radar for example). But it is not easy to choose any distance between radiation slots becau
Externí odkaz:
https://doaj.org/article/b7ebf37921b74c99a1c57044f7653eb2
Publikováno v:
Applied Sciences, Vol 13, Iss 13, p 7878 (2023)
In this paper, we present a study on a broadband transparent tapered slot antenna. In general, the objective of achieving optical transparency is to enable antennas to seamlessly integrate into windows, offering an aesthetically pleasing and inconspi
Externí odkaz:
https://doaj.org/article/d8d051df7b534112b1fd2dbfbcc9e8a6