Sirajo Abdullahi

Empirical Measurement of 5G Mobile Signal Path Loss in Southern and Northern Urban Metropolis of Nigeria

Sirajo Abdullahi, A. S. Adewumi, O. Olabisi & M. M. Labbo · Asian Journal of Research and Reviews in Physics · 2026

Accurate characterisation of large-scale radio attenuation is important for fifth-generation (5G) network planning, particularly in heterogeneous urban environments. This study reports a drive-test assessment conducted in Lagos and Ibadan in southern Nigeria and Abuja and Kano in...

Open access Research Article 10.9734/ajr2p/2026/v10i4244

Statistical Approaches to Environmental and Atmospheric Influences on Fifth-generation Mobile Signal Propagation in Tropical Regions: A Critical Review

Sirajo Abdullahi, Adebayo S. Adewumi & Efua O. Anthony · Asian Journal of Research and Reviews in Physics · 2026

Tropical and equatorial territories combine the most intense sustained rainfall on the planet with an accelerating rollout of fifth-generation mobile networks in the centimetre and millimetre wave bands. The statistical apparatus used to translate environmental and atmospheric me...

Open access Research Article 10.9734/ajr2p/2026/v10i4243

Shielding Effectiveness, Mechanical and Dielectric Properties of NiO/PCL Nano Composites at Microwave Frequency for Electronic Devices

Abubakar Yakubu, Zulkifly Abbas, Sirajo Abdullahi, Suleiman Sahabi & Garba D. Sani · Physical Science International Journal · 2021

There is a continuous generation of electromagnetic fields through operations of electronic devices for this reason it is paramount that these fields be shielded so as to prevent interferences. The, conventional method for shielding these fields are by the use of thin metal foils...

Open access Research Article 10.9734/psij/2021/v25i330248