Publications
- M. S. Ellis, A.-R. Ahmed, J. J. Kponyo, I. Acquah, N. Rasool, “Characteristic modal analysis in miniaturization and bandwidth-enhancement of monopole antenna for WLAN/WiMAX/LTE applications,” Microw. Opt. Technol. Lett., pp. 1 – 8, 2023
- K. S. O. Kwakye, Nouman Rasool, K. O. Gyasi, J. Abroquah, M. S. Ellis, O. L. Owusu, A.-R. Rahman, J. J. Kponyo, “Design and analysis of a low-profile dual-band circularly polarized monopole antenna based on characteristic mode analysis”, Int. J. RF Microwave Computer-Aided Design, pp. 1- 12, 2023
- M. S. Ellis, J. Nourinia, Ch. Ghobadi, K. Hosseini, F. Alizadeh, B. Mohammadi, “Compact wideband printed antenna with circularly polarized tilted beam radiation using a Quasi-radiator” AEU International Journal of Electronics and Communication, pp. 1 – 12, 2023
- M. S. Ellis, Nana Afia Owusu-Achiaw, Stephen Asante Osei, David Nakojah "circularly polarized printed edge-placed printed monopole antenna using theory of characteristic modes" Microwave and Optical Technology Letters, pp. 1-9, 2023.
- M. S. Ellis, Nana Afia Owusu-Achiaw, Stephen Asante Osei, David Nakojah "Design of a circularly polarized printed open-slot antenna using theory of characteristic modes" Microwave and Optical Technology Letters, pp. 1-9, 2023.
- K. O. Gyasi, A. Boukarkar, K. S. O. Kwakye, M. S. Ellis, A.-R. Ahmed, J. J. Kponyo, M. A. Basit, N. Shoaib "Characteristic mode analysis of a compact circularly polarized rotated square slot antenna" Microwave and Optical Technology Letters, pp. 1-8, 2023.
- M. S. Ellis, J. Nourina, Ch. Ghobadi, B. Mohammadi "Compact planar ultra-wideband pattern diversity antenna" Microwave and Optical Technology Letters, pp. 1-8, 2022.
- M. S. Ellis, A.-R, Ahmed, J. J. Kponyo, K. O. Gyasi, K. S. O. Kwakye, S. Ameyaw "Improved bandwidth and F/B ratio of a CPW-fed planar monopole antenna" Heliyon, 8(8), e10037, 2022.
- P. Arthur, M. S. Ellis, A.-R, Ahmed, J. J. Kponyo, "Design of pattern-reconfigurable circularly polarized unidirectional antenna based on quasi-radiator for ISM applications" Heliyon, 8(11), e11721, 2022.
- M. S. Ellis, P. Arthur, A.-R, Ahmed, J. J. Kponyo, Benedicta A. Mensah, Bob John "Design of a single and dual band-notched UWB antenna using vertical stubs embedded in feedline" Heliyon, 7(12), e08554, 2021.
- M. S. Ellis, P. Arthur, J. Nourinia, Ch. Gbobadi, Ali Lahlbaksh, B. Mohammadi, "Compact low profile unidirectional antenna at 2.45 GHz for body-centric communications", Photonics and Electromagnetic Research Symposium, pp. 1354 - 1358, 2021.
- M. Ghahremani, Ch. Gbobadi, J. Nourinia, S. V. Masuminia, M. S. Ellis, B. Mohammadi, "Compact WLAN/C-Band Multiple-Input Multiple-Output Antenna", 10th International Symposium on Telecommunications, pp. 1 - 5, Dec. 2020
- M. S. Ellis, F.B. Effah, A-R. Ahmed, J. J. Kponyo, J. Nourinia, Ch. Gbobadi, B. Mohammadi, "Asymmetric circularly polarized open-slot antenna", Int. J. RF Microw. Comput. Aided Eng., e22141, pp. 1 - 10, 2020.
- M. S. Ellis, A-R. Ahmed, J. J. Kponyo, J. Nourinia, Ch. Gbobadi, B. Mohammadi, "Simple circularly polarized planar monopole inverted T-shaped antenna", Microw. Opt. Technol. Lett., pp. 1 - 6, 2019.
- M. S. Ellis, A-R. Rahman, J. J. Kponyo, F. B. Effah, J. Nourinia, Ch. Gbobadi, B. Mohammadi, "Compact broadband circularly polarized printed antenna with a shifted monopole and modified ground plane", Institute of Physics (IOP) Journal of Instrumentation, 14, P11026, pp. 1 - 10, 2019.
- M. S. Ellis, A-R. Ahmed, J. J. Kponyo, J. Nourinia, Ch. Gbobadi, B. Mohammadi, "Unidirectional planar monopole antenna using a quasi-radiator", IEEE Antennas and Wireless Propagation Letters, vol. 18, no. 1, pp. 157-161, 2019.
- M. Ahadi, Ch. Gbobadi, J. Nourinia, M. S. Ellis, F. Alizadeh, B. Mohammadi, " Compact planar UWB Elliptical Vivaldi antenna", IEEE 5th Conference in Knowledge-based engineering and innovation (KBEI), pp. 128-131, 2019
- Medhi Ghahremani, Ch. Gbobadi, J. Nourinia, M. S. Ellis, Farzad Alizadeh, B. Mohammadi, "A Miniaturized UWB antenna with dual-band rejection of WLAN/WiMAX using slitted EBG structure", IET Microw. Antennas and Propagation, 13(3), 2019
- Joseph A. K. Nsor, A.-R. Ahmed, Severin Azankpo, Eric Aggrey, M. S. Ellis, "Investigation of potential RFI threats to Ghana Radio Telescope Observatory-Nkutunse", American Journal of Electrical and Electronic Engineering, vol. 7, no. 1, 2019
- F. B. Effah, Phillip Okyere, M. S. Ellis, P. Wheeler, A. Watson, J. Clare, and J. Ojo, “Three-level indirect matrix converter with two series Z-Source Networks, Carpathian Journal of Electrical Engineering, vol. 13, no. 1, 2019.
- M. S. Ellis, A-R. Ahmed, J. J. Kponyo, J. Nourinia, Ch. Gbobadi, B. Mohammadi, "Miniaturized printed monopole antenna with a linked ground plane and radiator", IET Electronic Letters, vol. 54, no. 11, 2018
- M. S. Ellis, A.-R. Ahmed, J. J. Kponyo, “Miniaturized Planar Monopole UWB Antenna with Integrated RFID/GPS/GSM/WLAN Bands using Capacitively Loaded Loop Resonator”, International Journal of Wireless and Microwave Engineering, vol. 8, no. 6, 2018.
- Joseph A. K. Nsor, A.-R. Rahman, Joyce Koranteng-Acquah, M. S. Ellis, "Investigation of potential RFI threats to Ghana Radio Telescope Observatory-Nkutunse", International Journal of Engineering Research and Technology, vol. 6, no. 8, 2017
- M. S. Ellis, A-R. Ahmed, J. J. Kponyo, "A circularly polarized planar monopole antenna with wide AR bandwidth using a novel radiator/ground structure", Global Journals of Researches in Engineering, 2017
- M. S. Ellis, J. J. Kponyo, A-R. Ahmed, "A compact wideband circularly polarized L-slot antenna edge-fed by a microstrip feedline for C-band applications", Progress in Electromagnetic Research Letters, vol. 65, pp. 95-102, 2017
- M. S. Ellis, Zhiqin Zhao, Jiangniu Wu, Z. Nie and Qing Huo Liu, “A novel simple and compact microstrip-fed circularly-polarized wide slot antenna with wide axial ratio bandwidth for C-band applications,” IEEE, Transactions on Antennas and Propagation, vol. 64, no. 4, Jan. 2016.
- M. S. Ellis, Zhiqin Zhao, Jiangniu Wu, Z. Nie and Qing Huo Liu, “A small Planar Monopole Ultrawideband Antenna With Reduced Ground Plane Effect,” IET, Microwaves Antennas and Propagation, vol. 9, pp. 1028 - 1034, 2015.
- X. Ding, Zhiqin Zhao, L. Zhou, M. S. Ellis, Z. Nie, “Dual-band dual sense unidirectional circularly polarized antenna with CPW-Fed for wireless applications,” Progress in Electromagnetic Research (PIERC), vol. 55, pp. 167 – 177, 2015.
- M. S. Ellis, Zhiqin Zhao, Jiangniu Wu, Z. Nie, and Qing Huo Liu, “Unidirectional planar monopole ultra-wideband antenna using a wrench-shaped feeding structure,” Electron. Lett, vol. 50, no. 9, April 2014.
- M. S. Ellis, Zhiqin Zhao, Jiangniu Wu, Z. Nie and Qing Huo Liu, “A Novel Miniature Band-Notched Wing-Shaped Monopole Ultrawideband Antenna", IEEE Antennas Wireless Propag. Lett., vol. 12, pp. 1614 – 1617, 2013.
- M. S. Ellis, Zhiqin Zhao, Jiangniu Wu, Z. Nie and Qing Huo Liu, “A New Compact Microstrip-fed Monopole Antenna for Triple Band WLAN/WIMAX Applications,” Progress in Electromagnetic Research (PIERL), vol. 8, 129 – 135, 2014.
- Jiangniu Wu, Zhiqin Zhao, M. S. Ellis, Z. Nie, and Qing Huo Liu, “Printed double-dipole antenna with high directivity using a new feeding structure,” IET Micro., Antennas and Propag., vol. 8, no. 14, pp. 1186 – 1191, 2014.
- M. S. Ellis, Zhiqin Zhao, Jiangniu Wu, Z. Nie, and Qing Huo Liu, “A planar monopole UWB antenna with improved lower-end bandwidth using an L-shaped stub extended on the ground plane,” Progress in Electromagnetic Research (PIERC), vol. 52, pp. 109 – 114, 2014.
- Ma Kun, Zhiqin Zhao, Jiangniu Wu, M. S. Ellis, Z. Nie, “A printed Vivaldi antenna with improved radiation patterns by using two pair of eye-shaped slots for UWB applications”, Progress in Electromagnetic Research (PIER), vol. 48, pp. 63 – 71, 2014.
- Jiangniu Wu, Zhiqin Zhao, M. S. Ellis, Z. Nie, and Qing Huo Liu, “Enhanced directivity and bandwidth of a stepped open-slot antenna with L-shaped slots and parasitic strip,” IET Micro., Antennas and Propag., vol. 8, no. 7, pp. 465 – 473, 2014.
- K. O. Gyasi, M. S. Ellis, J. J. Kponyo, “A Wideband Single Fed Circularly Polarized Slot Antenna for Multi-Band Applications” 2nd International Symposium on Instrumentation and Measurement, Sensor Network and Automation (IMSNA), 2013.
- A. Uz Zaman, M. S. Ellis, P.-S. Kildal, “Metamaterial based packaging Method for Improved Isolation of Circuit Elements in microwave modules,” Proceedings of the 42nd European Microwave Conference (EuMC), pp. 1214 – 1217, 2012.
- M. S. Ellis, Daniel Kotei, Zhiqin Zhao, Z. Nie, Qing-Huo Liu, “Planar Monopole UWB Antenna with Reduced Ground Plane Effect,” International Journal of Computer and Electrical Engineering (IJCEE), vol. 6, no. 5, pp. 393 - 401, 2014.
- M. S. Ellis, “Miniature staircase profile printed monopole antenna for ultrawideband applications,” Cross-Strait Quad-Regional Radio Science and Wireless Technology Conference. (CSQRWC), pp. 237 – 240, 2013.