Raghad Ghalib Alsultan
Research InterestsAntenna Design Antennas & Radio Wave Propagation Electromagnetic Fields and Microwave Techniques Electronics & Telecommunication Engineering Microstrip Antennas and Arrays Telecommunications
| Gender | FEMALE |
|---|---|
| Place of Work | Mosul Technical Institute |
| Position | Head of Department Electrical Techniques |
| Qualification | Ph.D |
| Speciality | Electrical engineering |
| raghad_alsultan@ntu.edu.iq | |
| Phone | 07738499641 |
| Address | Mosul-Albareed Str., Mosul, Mosul, Iraq |
Skills
المجالات الكهرومغناطيسية (2%)
Electromagnetic fields (1%)
Academic Qualification
بكالريوس
Sep 1, 1994 - Jul 3, 1998بكالريوس في الهندسة الكهربائية
ماجستير
Sep 1, 2002 - Sep 3, 2004ماجستير في الهندسة الكهربائية
دكتوراه
Feb 3, 2013 - May 14, 2018كتوراه في الهندسة الكهربائية / الالكترونيك والاتصالات
Working Experience
العلاقات الثقافية , [مديرة قسم البعثات والعلاقات الثقافية]
Mar 5, 2019 - Sep 3, 2021الشؤون العلمية, شؤون الطلبة [معاون العميد للشؤون العلمية والطلابية]
Sep 3, 2023 - Sep 1, 2025قسم علمي [رئيس قسم التقنيات الكهربائية]
Sep 1, 2025 - PresentPublications
A NEW Technique for Disseminating Knowledge Concerning VANET Traffic Using Crocodile Hunting Search
Feb 6, 2024Journal Journal of Electrical Systems
publisher esrgroups
DOI https://doi.org/10.1155/2018/4814176
Issue 20
Volume 25
Mutual coupling suppression of closely spaced microstrip antennas by ladder‐shaped conducting wall
Nov 25, 2018Journal International Journal of Communication Systems
publisher Wiley
DOI https://doi.org/10.1155/2018/4814176
Issue 17
Volume 31
Mutual coupling reduction of E‐shaped MIMO antenna with matrix of C‐shaped resonators
Feb 18, 2018Journal International Journal of Antennas and Propagation
publisher Wiley
DOI https://doi.org/10.1155/2018/4814176
Issue 1
Volume 2018
E-shaped multiple-input-multiple-output (MIMO) microstrip antenna systems operating in WLAN and WiMAX bands (between 5 and 7.5 GHz) are proposed with enhanced isolation features. The systems are comprised of two antennas that are placed parallel and orthogonal to each other, respectively. According to the simulation results, the operating frequency of the MIMO antenna system is 6.3 GHz, and mutual coupling is below −18 dB in a parallel arrangement, whereas they are 6.4 GHz and −25 dB, respectively, in the orthogonal arrangement. The 2 × 3 matrix of C-shaped resonator (CSR) is proposed and placed between the antenna elements over the substrate, to reduce the mutual coupling and enhance the isolation between the antennas. More than 30 dB isolation between the array elements is achieved at the resonant frequency for both of the configurations. The essential parameters of the MIMO array such as mutual coupling, surface current distribution, envelop correlation coefficient (ECC), diversity gain (DG), and the total efficiency have been simulated to verify the reliability and the validity of the MIMO system in both parallel and orthogonal configurations. The experimental results are also provided and compared for the mutual coupling with simulated results. An adequate match between the measured and simulated results is achieved.