Browsing Network & Communication by Author "Iqbal, Amjad"

Now showing items 1-16 of 16

    • A compact UWB antenna with independently controllable notch bands 

      Iqbal, Amjad; Smida, A.; Khaddaj Mallat, Nazih Khaddaj; Islam, Mohamad Tariqul; Kim, Sunghwan (MDPI AG., 2019)
      A minimally-sized, triple-notched band ultra-wideband (UWB) antenna, useful for many applications, is designed, analyzed, and experimentally validated in this paper. A modified maple leaf-shaped main radiating element with ...

    • Design of Wideband Circular-Slot Antenna for Harvesting RF Energy 

      Muhammad, Surajo; Smida, Amor; Waly, Mohamed Ibrahim; Mallat, Nazih Khaddaj; Iqbal, Amjad; Khan, Sadeque Reza; Alibakhshikenari, Mohammad (Hindawi Limited, 2022)
      The design of a wideband circular-slot antenna for RF signal harvesting is reported in this work. The proposed design frequency range accommodates the leading contributors to the available RF signals accessible by the RFEH ...

    • Dielectric resonator antenna with reconfigurable polarization states 

      Iqbal, Amjad; Waly, Mohamed I.; Smida, Amor; Mallat, Nazih K. (John Wiley and Sons Inc., 2020)
      This study presents a simple and low-profile cylindrical dielectric resonator antenna (CDRA) for the fifth-generation (5G) band (3.5 GHz) with switchable polarization. The antenna can operate with linear or circular ...

    • Electromagnetic bandgap backed millimeter-wave MIMO antenna for wearable applications 

      Iqbal, Amjad; Basir, Abdul; Smida, A.; Mallat, Nazih Khaddaj; Elfergani, Issa; Rodriguez, Jonathan; Kim, Sunghwan (IEEE., 2019)
      A millimeter-wave (mm-Wave) multiple input multiple output (MIMO) antenna operating at 24 GHz (ISM band), suitable for wearable applications, is proposed in this paper. The proposed MIMO antenna consists of two elements, ...

    • Frequency and pattern reconfigurable antenna for emerging wireless communication systems 

      Iqbal, Amjad; Smida, Amor; Khaddaj Mallat, Nazih Khaddaj; Ghayoula, Ridha; Elfergani, Issa; Rodriguez, Jonathan; Kim, Sunghwan (MDPI AG., 2019)
      A printed and minimal size antenna having the functionality of frequency shifting as well as pattern reconfigurability is presented in this work. The antenna proposed in this work consists of three switches. Switch 1 is a ...

    • High performance antenna-on-chip inspired by SIW and metasurface technologies for THz band operation 

      Alibakhshikenari, Mohammad; Virdee, Bal S.; Rajaguru, Renu Karthick; Iqbal, Amjad; Al‑Hasan, Muath; Iqbal, Amjad; Al‑Hasan, Muath; See, Chan H.; Falcone, Francisco (Nature Research, 2023)
      In this paper, a high-performance antenna-on-chip (AoC) is implemented on gallium arsenide (GaAs) wafer based on the substrate integrated waveguide (SIW) and metasurface (MTS) technologies for terahertz band applications. ...

    • Highly-isolated compact self-diplexing antenna 

      PourMohammadi, Peyman; Naseri, Hassan; Melouki, Noureddine; Ahmed, Fahad; Zheng, Qi; Iqbal, Amjad; Vandenbosch, Guy A.E.; Denidni, Tayeb A. (Elsevier GmbH, 2024-01)
      This article introduces a novel low-profile self-duplexing antenna with high isolation for out-band operation applications. The antenna design features two patches, one rectangular and one triangular, both utilizing the ...

    • An innovative fractal monopole MIMO antenna for modern 5G applications 

      Hassan Ghadeer, Sabah; Kamal Abd.Rahim, Sharul; Alibakhshikenari, Mohammad; Virdee, Bal S.; Elwi, Taha A.; Iqbal, Amjad; Al‑Hasan, Muath (Elsevier GmbH, 2023)
      Proposed in this paper is the design of an innovative and compact antenna array which based on four radiating elements for multi-input multi-output (MIMO) antenna applications used in 5G communication systems. The radiating ...

    • Low-profile frequency reconfigurable antenna for heterogeneous wireless systems 

      Iqbal, Amjad; Smida, Amor; Abdulrazak, Lway Faisal; Saraereh, Omar A.; Mallat, Nazih Khaddaj; Elfergani, Issa; Kim, Sunghwan (MDPI AG., 2019)
      A low-profile (0.21λg× 0.35λg× 0.02λg ) and a simply-structured frequency-switchable antenna with eight frequency choices is presented in this paper. The radiating structure (monopole) is printed on a 1.6-mm thicker, ...

    • Metamaterial inspired electromagnetic bandgap filter for ultra-wide stopband screening devices of electromagnetic interference 

      Al-Hasan, Muath; Alibakhshikenari, Mohammad; Virdee, Bal S.; Sharma, Richa; Iqbal, Amjad; Althuwayb, Ayman A.; Falcone, Francisco (Nature Research, 2023)
      Presented here is a reactively loaded microstrip transmission line that exhibit an ultra-wide bandgap. The reactive loading is periodically distributed along the transmission line, which is electromagnetically coupled. The ...

    • Multi-band printed antenna for portable wireless communication applications 

      Mallat, Nazih Khaddaj; Iqbal, Amjad (Electromagnetics Academy, 2019)
      A compact, triple-band (WiMAX, WLAN and X-Band uplink satellite communication) monopole antenna is reported in this paper. The geometry of the proposed antenna consists of a pentagon-shaped patch along with symmetrical ...

    • On-Chip Terahertz antenna array based on amalgamation of metasurface-inspired and artificial magnetic conductor technologies for next generation of wireless electronic devices 

      Alibakhshikenari, Mohammad; Virdee, Bal S.; Salekzamankhani, Shahram; Babaeian, Fatemeh; Mansoor Ali, Syed; Iqbal, Amjad; Al-Hasan, Muath (Elsevier GmbH, 2023)
      The paper presents a feasibility study on an innovative terahertz (THz) on-chip antenna array designed to reliably meet the high-performance connectivity requirements for next generation of wireless devices to enable ...

    • SIW-based frequency-adjustable antenna for IoT-based duplex wireless devices 

      Iqbal, Amjad; Al-Hasan, Muath; Mabrouk, Ismail Ben; Andreasson, Pererik; Nilsson, Emil; Smida, Amor; Denidni, Tayeb A. (Elsevier GmbH, 2024)
      This paper proposes a compact and frequency-adjustable/reconfigurable dielectric (DR)-loaded eighth-mode substrate integrated waveguide (EMSIW) antenna for duplex wireless communications. The miniaturization of the resonators ...

    • Slot-DRA-based independent dual-band hybrid antenna for wearable biomedical devices 

      Iqbal, Amjad; Alazemi, Abdullah J.; Khaddaj Mallat, Nazih Khaddaj (IEEE., 2019)
      A hybrid dual-band antenna, consisting of an L-shaped radiating slot and a cylindrical dielectric resonator antenna (CDRA) is proposed, simulated and experimentally validated in this paper. The microstrip transmission line ...

    • Wideband Circularly Polarized MIMO Antenna for High Data Wearable Biotelemetric Devices 

      Iqbal, Amjad; Smida, A.; Alazemi, Abdullah J.; Waly, Mohamed I.; Khaddaj Mallat, Nazih Khaddaj; Kim, Sunghwan (IEEE., 2020)
      This paper presents a miniaturized circularly polarized multiple-input multiple-output (MIMO) antenna for wearable biotelemetric devices. The proposed MIMO antenna consists of four elements, which are placed orthogonally ...

    • Wireless power transfer system for deep‑implanted biomedical devices 

      Iqbal, Amjad; Sura, Penchala Reddy; Al-Hasan, Muath; Mabrouk, Ismail Ben; Denidni, Tayeb A. (Nature Research, 2022)
      In this paper, a dual-band implantable rectenna is proposed for recharging and operating biomedical implantable devices at 0.915 and 2.45 GHz. The rectenna system consists of a compact dual-band antenna based on a ...