Article

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 and Paul, Rose (2024) Three-way equal filtering power divider for modern communication systems. Engineering Reports:e13036. ISSN 2577-8196 (Online) (doi:https://doi.org/10.1002/eng2.13036)

Egbe, Gregory, Arinze, Stella, Ebenuwa, Solomon, Nwajana, Emenike and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2024) Maintenance resources optimization using Pareto analysis: instrumentation air compressor in Oredo, Nigeria. International Journal of Manufacturing, Materials, and Mechanical Engineering, 13 (1). pp. 1-14. ISSN 2156-1680 (Print), 2156-1672 (Online) (doi:https://doi.org/10.4018/IJMMME.353392)

Arinze, Stella N., Okafor, Patrick U., Obi, Emenike R. and Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 (2024) Implementation of radio frequency identification technology for a secure and intelligent shopping cart. Bulletin of Electrical Engineering and Informatics (BEEI), 14 (1):8243. pp. 143-152. ISSN 2089-3191 (Print), 2302-9285 (Online) (doi:https://doi.org/10.11591/eei.v14i1.8243)

Saeed, Muhammad Asfar, Obi, Emenike R. and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2024) A compact linear microstrip patch beamformer antenna array for millimeter-wave future communication. Sensors, 24 (13):4068. pp. 1-13. ISSN 1424-8220 (Online) (doi:https://doi.org/10.3390/s24134068)

Saeed, Muhammad and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2024) A review of beamforming microstrip patch antenna array for future 5G/6G networks. Frontiers in Mechanical Engineering, 9:1288171. pp. 1-15. ISSN 2297-3079 (Online) (doi:https://doi.org/10.3389/fmech.2023.1288171)

Nwajana, Augustine ORCID: 0000-0001-6591-5269 and Obi, Emenike Raymond (2023) Application of compact folded-arms square open-loop resonator to bandpass filter design. Micromachines, 14 (2):320. ISSN 2072-666X (Online) (doi:https://doi.org/10.3390/mi14020320)

Imasuen, Ifueko Itohan and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2022) Balancing WTO-TRIPS standard against Nigeria counterfeit regulatory efforts: a critique. International Journal of Public and Private Perspectives on Healthcare, Culture, and the Environment, 6 (1):75. pp. 1-19. ISSN 2471-1047 (Print), 2471-1055 (Online) (doi:https://doi.org/10.4018/IJPPPHCE.301575)

Obi, Emenike R. and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2022) Modeling, integration, and automation of degradation to generate asset lifespan analytics using AssessLIFE software. International Journal of Manufacturing, Materials, and Mechanical Engineering, 12 (1):28. pp. 1-40. ISSN 2156-1680 (Print), 2156-1672 (Online) (doi:https://doi.org/10.4018/IJMMME.300828)

Nwajana, Augustine ORCID: 0000-0001-6591-5269 and Obi, Emenike Raymond (2022) A review on SIW and its applications to microwave components. Electronics, 11 (7):1167. pp. 1-21. ISSN 2079-9292 (Online) (doi:https://doi.org/10.3390/electronics11071160)

Ijemaru, Gerald and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2021) Image processing system using MATLAB-based analytics. Bulletin of Electrical Engineering and Informatics, 10 (5). pp. 2566-2577. ISSN 2089-3191 (Print), 2302-9285 (Online) (doi:https://doi.org/10.11591/eei.v10i5.3160)

Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2021) A step-by-step approach to bandpass/channel filter design. International Journal of Electronics, Communications, and Measurement Engineering, 10 (2):1. pp. 1-14. ISSN 2578-7551 (Print), 2578-7543 (Online) (doi:https://doi.org/10.4018/IJECME.2021070101)

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 , Ijemaru, Gerald K., Ang, Kenneth L.-M., Seng, Jasmine K. P. and Yeo, Kenneth S. K. (2021) Unbalanced two-way filtering power splitter for wireless communication systems. Electronics, 10 (5):617. ISSN 2079-9292 (Online) (doi:https://doi.org/10.3390/electronics10050617)

Nwajana, Augustine Onyenwe ORCID: 0000-0001-6591-5269 (2020) Circuit modelling of bandpass/channel filter with microstrip implementation. Indonesian Journal of Electrical Engineering, and Informatics, 8 (4). pp. 696-705. ISSN 2089-3272 (doi:https://doi.org/10.11591/ijeei.v8i4.2466)

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 , Okafor, Patrick U. and Arinze, Stella N. (2020) T-junction diplexer for RF front end of a cellular base station. INTERNATIONAL JOURNAL OF MICROWAVE AND OPTICAL TECHNOLOGY, 15 (6). pp. 537-543. ISSN 1553-0396

Isibor, Ihianle, Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 , Ebenuwa, Solomon Henry, Otuka, Richard I., Owa, Kayode and Orisatoki, Mobolaji O. (2020) A deep learning approach for human activities recognition from multimodal sensing devices. IEEE Access, 8. pp. 179028-179038. ISSN 2169-3536 (Online) (doi:https://doi.org/10.1109/ACCESS.2020.3027979)

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 , Dainkeh, Amadu and Yeo, Kenneth Siok Kiam (2018) Substrate integrated waveguide (SIW) diplexer with novel input/output coupling and no separate junction. Progress In Electromagnetics Research M, 67. pp. 75-84. ISSN 1937-8726 (doi:https://doi.org/10.2528/PIERM18021603)

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 , Dainkeh, Amadu and Yeo, Kenneth S.K. (2017) Substrate integrated waveguide (SIW) bandpass filter with novel microstrip-CPW-SIW input coupling. Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 16 (2). pp. 393-402. ISSN 2179-1074 (Online) (doi:https://doi.org/10.1590/2179-10742017v16i2793)

Nwajana, Augustine Onyenwe ORCID: 0000-0001-6591-5269 and Yeo, Kenneth Siok Kiam (2016) Microwave diplexer purely based on direct synchronous and asynchronous coupling. Radioengineering, 25 (2). pp. 247-252. ISSN 1210-2512 (Print), 1805-9600 (Online) (doi:https://doi.org/10.13164/re.2016.0247)

Dainkeh, A., Nwajana, A.O. ORCID: 0000-0001-6591-5269 and Yeo, K.S.K. (2016) Filtered power splitter using microstrip square open loop resonators. Progress In Electromagnetics Research C, 64. pp. 133-140. ISSN 1937-8718 (doi:https://doi.org/10.2528/PIERC16042005)

Yeo, Kenneth S. K. and Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 (2013) A novel microstrip dual-band bandpass filter using dual-mode square patch resonators. Progress In Electromagnetics Research C, 36. pp. 233-247. ISSN 1937-8718 (doi:https://doi.org/10.2528/PIERC12120312)

Book Section

Obi, Emenike and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2022) AssessLIFE software for automation of asset degradation to estimate Asset life and degradation drivers. In: Nwajana, Augustine ORCID: 0000-0001-6591-5269 , (ed.) 5G Internet of Things and Changing Standards for Computing and Electronic Systems. IGI Global, Hershey, Pennsylvania, pp. 30-80. ISBN 978-1668438558; 1668438550; 978-1668438565; 978-16684385 (doi:https://doi.org/10.4018/978-1-6684-3855-8.ch002)

Kure, Halima and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2022) Protection of critical infrastructure using an Integrated Cybersecurity Risk Management (i-CSRM) framework. In: Nwajana, Augustine ORCID: 0000-0001-6591-5269 , (ed.) 5G Internet of Things and Changing Standards for Computing and Electronic Systems. IGI Global, Hershey, Pennsylvania, pp. 94-133. ISBN 978-1668438558; 1668438550; 978-1668438565; 978-16684385 (doi:https://doi.org/10.4018/978-1-6684-3855-8.ch004)

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 , Obi, Emenike Raymond, Ijemaru, Gerald Kelechi, Oleka, Emmanuel U. and Anthony, Destiny Chidi (2021) Fundamentals of RF/Microwave bandpass filter design. In: Nwajana, Augustine O. and Ihianle, Isibor Kennedy, (eds.) Handbook of Research on 5G Networks and Advancements in Computing, Electronics, and Electrical Engineering. IGI Global, USA, pp. 149-164. ISBN 978-1799869924 (doi:https://doi.org/10.4018/978-1-7998-6992-4.ch005)

Ijemaru, Gerald K., Ngharamike, Ericmoore T., Oleka, Emmanuel U. and Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 (2021) An energy-efficient model for opportunistic data collection in IoV-enabled SC waste management. Handbook of Research on 5G Networks and Advancements in Computing, Electronics, and Electrical Engineering. IGI Global. ISBN 978-1799869924 (doi:https://doi.org/10.4018/978-1-7998-6992-4.ch001)

Book

Nwajana, Augustine / O. ORCID: 0000-0001-6591-5269 (2020) Dual-Band Microwave Filter for WiMax Application. LAMBERT Academic Publishing, Germany. ISBN 978-6202677585

Nwajana, Augustine Onyenwe ORCID: 0000-0001-6591-5269 and Yeo, Kenneth Siok (2020) Practical Approach to Substrate Integrated Waveguide (SIW) Diplexer: Emerging Research and Opportunities. Advances in Mechatronics and Mechanical Engineering (AMME), 26 . IGI Global, Hershey, PA, USA. ISBN 978-1799820840

Edited Book

Gregor, Raul, Yeap, Kim H. and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (eds.) (2023) Power Electronics, Radio Frequency and Microwave Engineering. IntechOpen, London. ISBN 978-1803569123; 978-1803569116; 978-1803569130

Nwajana, Augustine ORCID: 0000-0001-6591-5269 (ed.) (2022) 5G Internet of Things and changing standards for computing and electronic systems. Advances in Computer and Electrical Engineering (ACEE) Book Series . IGI Global, Hershey, Pennsylvania, USA. ISBN 978-1668438558; 1668438550; 978-1668438565; 978-1668438572

Nwajana, Augustine ORCID: 0000-0001-6591-5269 and Yeo, Kenneth S. K. (eds.) (2022) Emerging research in microwave systems and applications. Electronics: Emerging Research in Microwave Systems and Applications -Microwave and Wireless Communications . MDPI, Basel, Switzerland. ISSN 2079-9292 (Online)

Nwajana, Augustine ORCID: 0000-0001-6591-5269 and Zhou, Jiafeng (eds.) (2021) Advancements in RF, microwave and millimeter-wave circuits and devices. Electronics: Emerging Research in Microwave Systems and Applications - Microwave and Wireless Communications . MDPI, Basel, Switzerland. ISSN 2079-9292 (Online)

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 and Ihianle, Isibor (eds.) (2021) Handbook of Research on 5G Networks and Advancements in Computing, Electronics, and Electrical Engineering. IGI Global, USA. ISBN 9781799869924

Conference Proceedings

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 and Paul, Rose (2024) 3-way equal filtering power divider using compact folded-arms square open-loop resonator. In: Proceedings of the 25th International Microwave and Radar Conference (MIKON) 1st - 4th July 2024, Wroclaw, Poland. IEEE Xplore . Institute of Electrical and Electronics Engineers (IEEE), Piscataway, New Jersey, pp. 189-193. ISBN 978-8396972613; 979-8350371611 ISSN 2770-3045 (Print), 2995-0570 (Online) (doi:https://doi.org/10.23919/MIKON60251.2024.10633981)

Mahadevaswamy, Chandramouli H., Vasistha, Anup and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2024) Dual-band bandpass filter derived from the transformation of a single-band bandpass filter. In: 2024 25th International Microwave and Radar Conference (MIKON). IEEE. ISBN 979-8350371611 ISSN 2770-3045 (Print), 2995-0570 (Online) (doi:https://doi.org/10.23919/MIKON60251.2024.10633986)

Saeed, Muhammad A. and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2024) Sub-terahertz microstrip antenna array for future communication. In: 2023 International Conference on Electrical, Computer and Energy Technologies (ICECET). Cape Town, South Africa, 16th - 17th November 2023. IEEE Xplore . Institute of Electrical and Electronics Engineers (IEEE), Piscataway, New Jersey, pp. 1-4. ISBN 979-8350327816; :979-8350327823 (doi:https://doi.org/10.1109/ICECET58911.2023.10389582)

Saeed, Muhammad A. and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2023) U-Shaped terahertz microstrip patch antenna for 6G future communications. In: 2023 7th International Electromagnetic Compatibility Conference (EMC Turkiye). 17th - 20th September 2023. Istanbul, Turkiye. IEEE Xplore . Institute of Electrical and Electronics Engineers (IEEE), Piscataway, New York, pp. 1-4. ISBN 979-8350342130; 979-8350342147 (doi:https://doi.org/10.1109/EMCTurkiye59424.2023.10287461)

Saeed, Muhhamed and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2023) A novel beamforming antenna array for 5G and beyond applications. In: Proc. of the 8th International Conference on Engineering and Emerging Technologies (2022 ICEET). 27-28 October 2022. Kuala Lumpur, Malaysia. IEEE Xplore . Institute of Electrical and Electronics Engineers (IEEE), Piscataway, New Jersey, pp. 1-4. ISBN 978-1665491068; 978-1665491051; 978-1665491075 ISSN 2409-2983 (Print), 2831-3682 (Online) (doi:https://doi.org/10.1109/ICEET56468.2022.10007412)

Saeed, Muhammad A., Ahmad, Muneeb, Nwajana, Augustine ORCID: 0000-0001-6591-5269 , Rehman, Masood Ur, Muhammad Ammar, Sohaib and Ateeqa, Naseer (2022) Coaxial feed ultra-wideband microstrip antenna for medical applications. In: 2022 International Conference on Electrical, Computer and Energy Technologies (ICECET), 20-22 July 2022. Prague, Czech Republic. ICECET Series (2). Institute of Electrical and Electronics Engineers (IEEE), Piscataway, New Jersey, pp. 1-4. ISBN 978-1665470872; 978-1665470889 (doi:https://doi.org/10.1109/ICECET55527.2022.9872795)

Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2021) Formulation for energy distribution in T-junctions for diplexer design. In: 2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE). Kuala Lumpur, Malaysia. 12-13 June 2021. IEEExplore . Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-4. ISBN 9781665438971 ; 9781665446020 (doi:https://doi.org/10.1109/ICECCE52056.2021.9514074)

Ogbodo, Eugene and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2021) A bandpass filter using edge coupled and direct coupled techniques. In: 2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE). Kuala Lumpur, Malaysia. 12-13 June 2021. IEEE Xplore . Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-4. ISBN 9781665438971 ; 9781665446020 (doi:https://doi.org/10.1109/ICECCE52056.2021.9514068)

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 , Otuka, Richard I., Ebenuwa, Solomon H., Ihianle, Isibor K., Aneke, Sampson O. and Edoh, Aloysius A. (2020) Symmetric 3dB filtering power divider with equal output power ratio for communication systems. In: 2020 International Conference on Electrical, Communication, and Computer Engineering (ICECCE). IEEE. ISBN 978-1728171166 (doi:https://doi.org/10.1109/ICECCE49384.2020.9179400)

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 and Yeo, Kenneth S. K. (2017) Multi-coupled resonator microwave diplexer with high isolation. In: 2016 46th European Microwave Conference (EuMC). IEEE, pp. 1167-1170. ISBN 978-2874870439 (doi:https://doi.org/10.1109/EuMC.2016.7824556)

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 , Yeo, Kenneth S. K. and Dainkeh, Amadu (2017) Low cost SIW Chebyshev bandpass filter with new input/output connection. In: 2016 16th Mediterranean Microwave Symposium (MMS). IEEE, pp. 1-4. ISBN 978-1509025862 ISSN 2157-9830 (Online) (doi:https://doi.org/10.1109/MMS.2016.7803795)

Other

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269 (2024) Call for chapters: RFID, microwave circuit, and wireless power transfer enabling 5/6G communication. IGI Global - Information Resources Management Association, Hershey, PA, USA.

Meng, Fanyi, Zhu, Forest, Jin, Jing, Zhou, Peigen, Moloudian, Gholamhosein and Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2024) Call for papers for IET special issue: Emerging technologies in analogue and RF integrated circuits and systems enabling 5/6G communication. Institution of Engineering and Technology (IET).

Nwajana, Augustine ORCID: 0000-0001-6591-5269 and Okafor, Patrick (2023) Call for Papers for Frontiers in Mechanical Engineering Special Issue: RFID and RF Circuits/Components. Frontiers Media.

Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2023) Special Issue Title: RFID and applications of RF/microwave circuits and systems. MDPI, Basel, Switzerland. (In Press)

Nwajana, Augustine ORCID: 0000-0001-6591-5269 (2019) International Journal of Electronics, Communications, and Measurement Engineering (IJECME). IGI Global, Hershey, Pennsylvania, USA.