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, N. A. Owusu-Achiaw, S. A. Osei, D. Nakojah, “circularly polarized printed edge-placed printed monopole antenna using theory of characteristic modes”, Microw. Opt. Technol. Lett., pp. 1 – 9, 2023

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

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.

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. Ghahremani, J. Nourinia, Ch. Gbobadi, 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, 2021.

M. S Ellis, P. Arthur, J. Nourinia, C. Ghobadi, A. Lalbakhsh, B. Mohammadi, "Compact Low-profile Unidirectional Antenna at 2.45 GHz for Body-centric Communications" Photonics & Electromagnetics Research Symposium (PIERS), 1354-1358, 2021

M. S. Ellis, Philip Arthur, A.-R. Rahman, J. J. Kponyo, Benedicta Andoh-Mensah, Bob John, "Design and circuit analysis of a single and dual band-notched UWB antenna using vertical stubs embedded in feedline", Heliyon, 7, e08554, 2021

M. S. Ellis, A-R. Rahman, 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, 2020.

M. S. Ellis, F.B. Effah, A-R. Rahman, 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.

Joseph A. K. Nsor, A.-R. Rahman, 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.

M. S. Ellis, A-R. Rahman, J. J. Kponyo, J. Nourinia, Ch. Gbobadi, B. Mohammadi, "Undirectional planar monopole antenna using a quasi-radiator", IEEE Antennas and Wireless Propagation Letters, vol. 18, no. 1, pp. 157-161, 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.

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

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.

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. Rahman, 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. Rahman, 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.

M. S. Ellis, A-R. Rahman, 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.

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, J. J. Kponyo, A-R. Rahman, "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.

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, “A small Planar Monopole Ultrawideband Antenna With Reduced Ground Plane Effect,” IET, Microwaves Antennas and Propagation, vol. 9, pp. 1028 - 1034, 2015.

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.

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.

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, 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.

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, “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.

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.

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.

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.

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.