Browsing by Author "Rafique, Umair"
Now showing items 1-8 of 8
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Circular ring fractal UWB antenna for microwave imaging applications
Rafique, Umair; Agarwal, Shobit; Abbas, Syed Muzahir; Dalal, Priyanka; Ullah, Raza; Kiani, Saad Hassan (Institute of Electrical and Electronics Engineers Inc., 2023)In this work, an ultra-wideband (UWB) planar antenna design is presented that is suitable for microwave imaging applications. The radiating element is comprised of three connected rings connected through thin metallic ... -
Dual-band multiple-element MIMO antenna system for next-generation smartphones
Kiani, Saad Hassan; Marey, Mohamed; Savcı, Hüseyin Şerif; Mostafa, Hala; Rafique, Umair; Khan, Muhammad Amir (MDPI (Multidisipliner Digital Publishing Institute), 2022)This work presents a cost-effective multiple-element multiple-input multiple-output (MIMO) antenna system for next-generation smartphones. The proposed antenna system is developed on a 0.8 mm thin FR-4 substrate with a ... -
Eight element dual-band MIMO array antenna for modern fifth generation mobile phones
Abubakar, Hassan Sani; Zhao, Zhiqin; Kiani, Saad Hassan; Rafique, Umair; Alabdulkreem, Eatedal; Elmannai, Hela (Elsevier GmbH, 2024)In this paper, an eight-element multiple-input multiple-output (MIMO) antenna with dual-band response is designed for fifth-generation (5G) mobile devices. The proposed MIMO systems’ radiators are placed in the inner side ... -
Performance enhancement of Vivaldi-shaped planar UWB antenna using a single-layer FSS reflector
Kiani, Saad Hassan; Rafique, Umair; Savcı, Hüseyin Şerif; Rmili, Hatem; Parchin, Naser Ojaroudi; Algarni, Abeer D.; Elmannai, Hela (2024)This work proposes the design of a frequency-selective surface (FSS)-based planar monopole antenna for ultra-wideband (UWB) communication applications. The UWB response is observed by integrating a Vivaldi-shaped slot and ... -
Side-edge dual-band MIMO antenna system for 5G cellular devices
Kiani, Saad Hassan; İbrahim, İmran Mohd; Savcı, Hüseyin Şerif; Rafique, Umair; Alsunaydih, Fahad N.; Alsaleem, Fahd; Alhassoon, Khaled; Mostafa, Hala (Elsevier GmbH, 2024)An eight-element multiple-input multiple-output (MIMO) antenna system is presented for two distinct 5G allocated bands, i.e., 3.5 and 5.2 GHz. The MIMO radiating elements are printed on each side of the mobile phone chassis, ... -
Tri-band MIMO diversity antenna for modern smartphones
Kiani, Saad Hassan; Savcı, Hüseyin Şerif; Rafique, Umair; Parchin, Naser Ojaroudi; Dalal, Priyanka; Abbas, Syed Muzahir (Institute of Electrical and Electronics Engineers Inc., 2023)This paper proposes the design of a MIMO antenna system with four elements, specifically tailored for future smartphones. The MIMO antenna system is operating in three important 5G frequency bands: 3.5 GHz, 4.7 GHz, and ... -
Ultra-wideband fractal ring antenna for biomedical applications
Saleem, İlyas; Rafique, Umair; Agarwal, Shobit; Savcı, Hüseyin Şerif; Abbas, Syed Muzahir; Mukhopadhyay, Subhas (Hindawi Limited, 2023)In this paper, an efficient, coplanar waveguide (CPW)-fed printed circular ring fractal ultra-wideband (UWB) antenna is presented for biomedical applications. In UWB technology, short-range wireless communication is possible ... -
Ultra-wideband pentagonal fractal antenna with stable radiation characteristics for microwave imaging applications
Khan, Muhammad Abbas; Rafique, Umair; Savcı, Hüseyin Şerif; Nordin, Anis Nurashikin; Kiani, Saad Hassan; Abbas, Syed Muzahir (MDPI, 2022)For microwave imaging applications, a design for an ultra-wideband (UWB) fractal antenna is presented. The antenna design is composed of a pentagonal fractal patch radiator fed by a modified co-planar waveguide (CPW) ground ...
