JOURNAL PUBLICATIONS:

[1] K. Oteng Gyasi, W. Guangjun, Y. Huang, A. E. Ampoma and W. Hu, "Broadband circularly polarized cross shaped slot antenna with improved feedline," Progress in Electromagnetics Research C (PIER C), Vol. 74, pp. 141–149, 2017.

[2] K. Oteng Gyasi, Li J, Huang Y, Guangjun W., "Broadband circularly polarized square slot antenna with a G-shaped feedline", Microwave and Optical Technology Letters 2017; Vol. 59:3055–3063. https://doi.org/10.1002/mop.30869. IMPACT FACTOR: 0.585

[3] K. Oteng Gyasi et al., "A Compact Broadband Cross-Shaped Circularly Polarized Planar Monopole Antenna With a Ground Plane Extension," IEEE Antennas and Wireless Propagation Letters, vol. 17, no. 2, pp. 335-338, Feb. 2018. IMPACT FACTOR: 2.533

[4] K. Oteng Gyasi et al., "A Compact Broadband Circularly Polarized Slot Antenna with Two Linked Rectangular Slots and an Inverted-F Feed Line," IEEE Transactions on Antennas and Propagation, vol. 66, no. 12, pp. 7374-7377, December 2018. DOI: 10.1109/TAP.2018.2867020, online ISSN:1558-2221. IMPACT FACTOR: 2.957

[5] K. Oteng Gyasi et al., "Tri-band Planar Monopole Antenna with Two Circularly Polarized Bandwidths for WiMAX Applications," IET Microwave, Antennas and Propagation, vol. 12, issue 15, pp. 2350-2355 DOI: 10.1049/iet-map.2018.5323, online ISSN: 1751-8733, December 2018. IMPACT FACTOR: 1.739

[6] A. E. Ampoma, H. Zhang, Y. Huang, G. Wen and K. Oteng Gyasi, "Three-Dimensional Spatial Fading Correlation of Uniform Rectangular Array Using Total Power of Angular Distribution,"  IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 2134-2137, 2017. IMPACT FACTOR: 2.533

[7] A. E. Ampoma, G. Wen, Y. Huang, K. Oteng Gyasi, P. I. Tebe and K. Ntiamoah-Sarpong, "Spatial Correlation Models of Large-Scale Antenna Topologies using Maximum Power of Offset Distribution and its Application," IEEE Access. doi: 10.1109/ACCESS.2018.2846260. IMPACT FACTOR: 3.557

[8] P. I. Tebe, G. J. Wen, Li. J, Y. J. Huang, A. E. Ampoma, K. Oteng Gyasi, "Massive MIMO with Transceiver Hardware Impairments: Performance Analysis and Phase Noise Error Minimization," KSII Transactions on Internet and Information Systems, 2018.

CONFERENCE PUBLICATIONS:

[1] K. Oteng Gyasi, M. S. Ellis and J. J. Kponyo, "A wideband single fed circularly polarized slot antenna for multi-band applications," 2013 2nd International Symposium on Instrumentation and Measurement, Sensor Network and Automation (IMSNA), Toronto, ON, 2013, pp. 620-623.

[2] K. Oteng Gyasi, W. Guangjun, X. X. Lin and M. A. Basit, "Bandwidth enhancement of a microstrip-line-fed printed rotated wide slot antenna with tuning stubs," 2016 IEEE MTT-S International Wireless Symposium (IWS), Shanghai, pp. 1-4, 2016.

[3] K. Oteng Gyasi, Y. Huang, G. Wen, J. Li and A. E. Ampoma, "Broadband circularly polarized square slot antenna with a G-shaped feedline," 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, San Diego, CA, 2017, pp. 117-118.

[4] K. Oteng Gyasi, Y. Huang, G. Wen, A. E. Ampoma and W. Hu, "Tri-band planar monopole antenna with dual band circular polarization," 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, San Diego, CA, 2017, pp. 2533-2534.

 [5] M. A. Basit, G. Wen, K. Oteng Gyasi and N. Rasool, "A compact wideband CPW-fed hybrid slot antenna," Proceedings of 2014 3rd Asia-Pacific Conference on Antennas and Propagation, Harbin, 2014, pp. 57-60.

[6] M. Ramadan, F. Li, C. X. Xu, K. Oteng and H. Ibrahim, "Authentication and key agreement scheme for CDMA cellular system," 2015 IEEE International Conference on Communication Software and Networks (ICCSN), Chengdu, 2015, pp. 118-124.

 [7] A. E. Ampoma, H. Zhang, Y. Huang, G. Wen and K. Oteng Gyasi, "On massive MIMO antenna topologies using total power in the azimuth and zenith domains," 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, San Diego, CA, 2017, pp. 369-370.

[8] A. E. Ampoma, G. Wen, H. Zhang, Y. Huang, K. Oteng Gyasi and P. I. Tebe, "3D correlation function of a uniform circular array using maximum power in the direction of arrival," 2017 Progress in Electromagnetics Research Symposium - Fall (PIERS - FALL), Singapore, 2017, pp. 2996-3003.