| Butler Matrix Based Beamforming Networks For Phased Array Antenna Systems: A Comprehensive Review and Future Directions For 5G Applications AK Vallappil, MKA Rahim, BA Khawaja, NA Murad, MM Gajibo IEEE Access, 2020 | 61 | 2020 |
| Compact Metamaterial Based Butler Matrix With Improved Bandwidth for 5G Applications AK Vallappil, MKA Rahim, BA Khawaja, MN Iqbal IEEE Access 8, 13573-13583, 2020 | 39 | 2020 |
| Dual‐band Minkowski–Sierpinski fractal antenna for next generation satellite communications and wireless body area networks A Karimbu Vallappil, BA Khawaja, I Khan, M Mustaqim Microwave and Optical Technology Letters 60 (1), 171-178, 2018 | 30 | 2018 |
| Metamaterial-Inspired Electrically Compact Triangular Antennas Loaded with CSRR and 3× 3 Cross-Slots for 5G Indoor Distributed Antenna Systems A Karimbu Vallappil, BA Khawaja, MKA Rahim, MN Iqbal, HT Chattha Micromachines 13 (2), 198, 2022 | 17 | 2022 |
| A Compact Triple-Band UWB Inverted Triangular Antenna with Dual-Notch Band Characteristics Using SSRR Metamaterial Structure for Use in Next-Generation Wireless Systems AK Vallappil, BA Khawaja, MKA Rahim, MN Iqbal, HT Chattha, MFM Ali Fractal and Fractional 6 (8), 422, 2022 | 15 | 2022 |
| Metamaterial Based Compact Branch-Line Coupler with Enhanced Bandwidth for Use in 5G Applications. AK Vallappil, MKA Rahim, BA Khawaja, M Aminu-Baba Applied Computational Electromagnetics Society Journal 35 (6), 2020 | 12 | 2020 |
| Complementary split-ring resonator and strip-gap based metamaterial fractal antenna with miniature size and enhanced bandwidth for 5G applications A Karimbu Vallappil, MK A. Rahim, B A. Khawaja, MN Iqbal, NA Murad, ... Journal of Electromagnetic Waves and Applications, 1-17, 2021 | 8 | 2021 |
| Minkowski–Sierpinski Fractal Structure-Inspired 2× 2 Antenna Array for Use in Next-Generation Wireless Systems AK Vallappil, BA Khawaja, MKA Rahim, M Uzair, M Jamil, Q Awais Fractal and Fractional 7 (2), 158, 2023 | 6 | 2023 |
| Metamaterial Sierpinski Carpet Antenna with Cross-Slot Superstrate For 5G Applications AK Vallappil, MKA Rahim, BA Khawaja, NA Murad 2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI …, 2021 | 2 | 2021 |
| A Metamaterial-Based Double-Sided Bowtie Antenna for Intelligent Transport System Communications Operating in Public Safety Band RH Alsisi, A Karimbu Vallappil, HA Wajid Crystals 13 (2), 360, 2023 | 1 | 2023 |
| A dual-band high gain complementary split-ring resonator (CSRR) loaded hexagonal bowtie antenna with enhanced bandwidth for Vehicle-to-Vehicle (V2V) communication applications RH Alsisi, AK Vallappil, HA Wajid International Journal of Electrical and Computer Engineering Systems 13 (10 …, 2022 | 1 | 2022 |
| Metamaterial Based Beamforming Network Integrated with Wilkinson Power Divider AK Vallappil, MKA Rahim, BA Khawaja, NA Murad 2022 International Symposium on Antennas and Propagation (ISAP), 139-140, 2022 | 1 | 2022 |
| Metamaterial Minkowski Fractal Antenna With Defective Ground Structure AK Vallappil, MKA Rahim, BA Khawaja, NA Murad 2021 International Symposium on Antennas and Propagation (ISAP), 1-2, 2021 | 1 | 2021 |
| A Miniaturized Metamaterial-Loaded Switched-Beam Antenna Array System With Enhanced Bandwidth for 5G Applications AK Vallappil, MKA Rahim, BA Khawaja, MN Iqbal IEEE Access, 2024 | | 2024 |
| Metamaterial-Inspired Antenna Array for Next-Generation 5G Wireless Systems and Its Applications RH Alsisi, AK Vallappil 2023 International Conference on Electrical, Communication and Computer …, 2023 | | 2023 |
| A Metamaterial Inspired 1× 4 Linear Antenna Array With Beam-Forming Network For 5G Applications AK Vallappil, BA Khawaja, MKA Rahim, N Ripin 2023 IEEE International Symposium On Antennas And Propagation (ISAP), 1-2, 2023 | | 2023 |
| A Compact Metamaterial Dual-band Branch-line Coupler for 5G Applications AB Shallah, F Zubir, MKA Rahim, MR Hamid, AK Vallappil, HA Majid, ... ELEKTRIKA-Journal of Electrical Engineering 22 (2), 30-36, 2023 | | 2023 |
| Development of Autonomous Cars using Raspberry Pi and Google Accelerator for Machine Learning Based Lane Detection RH Alsisi, M Uzair, N Oudah, Y Mabrouk, O Alnawajha, AK Vallappil, ... JOURNAL OF ENGINEERING AND COMPUTER SCIENCES 15 (1), 71-94, 2023 | | 2023 |
Bilal A. Khawaja, PhDAssociate Professor (Elec. Engg.), Islamic University of Madinah, KSA | NUST, PakistanVerified email at iu.edu.sa
