Nwajana, Augustine ORCID: https://orcid.org/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:10.3390/mi14020320)

Nwajana, Augustine ORCID: https://orcid.org/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:10.3390/electronics11071160)

Nwajana, Augustine O. ORCID: https://orcid.org/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:10.4018/978-1-7998-6992-4.ch005)