System-level multicriteria modelling of payload operational times for communication satellite missions in LEO

SC Ekpo, B Adebisi, D George… - Recent Progress in …, 2014 - ingentaconnect.com
The spacecraft payload operational time (SPOT) is amongst the main critical design
considerations that must be optimised and validated during the system engineering analysis …

Product development challenges for space sub-system manufacturers

AB Öhrwall Rönnbäck, O Isaksson - DS 92: Proceedings of the …, 2018 - designsociety.org
Space industry undergoes a transformation where new business interests affect
manufacturers of space subsystems and equipment. This paper investigates consequences …

[HTML][HTML] A 3.2-3.8 GHz low-noise amplifier for 5G/6G satellite-cellular convergence applications

M Uko, S Ekpo, F Elias, S Alabi - e-Prime-Advances in Electrical …, 2024 - Elsevier
The rapid evolution of wireless communication systems towards 5G standards has imposed
stringent requirements on the performance of radio frequency front-end components. Among …

[PDF][PDF] A Broadband LNA Design in Common-Source Configuration for Reconfigurable Multi-standards Multi-bands Communications

S Ekpo, R Kharel, M Uko - 2018 ARMMS RF and Microwave Conference, 2018 - armms.org
The design of broadband low noise amplifiers (LNAs) for reconfigurable and real-time multi-
standard multiband RF/microwave transceiver requires a holistic design trade-off for a given …

[PDF][PDF] Study of current femto-satellite approches

N Tahri, C Hamrouni, AM Alimi - International Journal of Advanced …, 2013 - Citeseer
The success of spac e technology evolves according to the technological progression in
terms of density of CM OS integration (Complementary on-Silicon Metal) and MEMS (Micro …

Metasurface-Backed Polarization-Diversified Microstrip Patch Antenna for Biomedical Multi-communication Applications

S Ghosh, D Saha, A Chakraborty… - International Adaptive …, 2023 - Springer
A uniform and homogeneous 4X4 array-based metasurface-backed polarization-diversified
microstrip patch antenna (MPA) has been proposed to study the characteristics of human …

A power budget model for highly adaptive small satellites

SC Ekpo, D George - Recent Patents on Space Technology, 2013 - ingentaconnect.com
Small satellite power is a critical space segment resource that is at a premium. This is
especially obvious when considering highly adaptive small satellites (HASSs) that exhibit …

Experimental analysis of useful manufacturing materials embedded in agricultural wastes for paper industry applications

EO Usungurua, IE Udo, DE Essang, SC Ekpo… - International Adaptive …, 2023 - Springer
In this study, two agricultural wastes, namely, coconut (Cocos nucifera L.) fruit fibres and
palm fruit (Elaeis guineensis) seed hairs, were used and were, respectively, obtained from …

A Metamaterial-Grounded Ultra-Wideband Cross-Fractal Mimo Antenna for K, Ka, and Mmwave Applications

S ENAHORO, SC EKPO, M UKO, S ALABI… - Ka, and Mmwave … - papers.ssrn.com
A critical design constraint that affects and degrades multiple-input multiple-output (MIMO)
antenna performance is mutual coupling. This paper presents a leading compact …

Icosahedrons microstrip antenna network architecture proposal for new USS telecommunication subsystem

C Hamrouni, R Hamza, AM Alimi… - Telecommunication …, 2017 - Springer
The paper presents a new antenna network subsystem architecture developed for
application on board wireless communication subsystem. Founded research work results …