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All Journal International Journal of Electrical and Computer Engineering Journal of Engineering and Scientific Research (JESR)
Lasisi, Hammed Oyebamiji
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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A Design and Experimental Investigation of a High-Performance X-Band Patch Array Antenna for Automotive Radar Applications Lasisi, Hammed Oyebamiji; Ogungbayi, Peter Ropo; Oluwaleke, Afolabi Abimbola
Journal of Engineering and Scientific Research Vol. 7 No. 2 (2025)
Publisher : Faculty of Engineering, Universitas Lampung Jl. Soemantri Brojonegoro No.1 Bandar Lampung, Indonesia 35141

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jesr.v7i2.224

Abstract

Radar technology has become increasingly important in automotive applications, particularly for car-speed detection and monitoring systems. The antenna plays a crucial role in determining the performance of these systems. This paper presents the design, simulation, and experimental investigation of a high-performance X-band patch array antenna for automotive radar applications. The antenna was fabricated and tested, and the experimental results validate the simulation results. The prototype antenna operates at a center frequency of 10 GHz and achieves a gain of 15.48 dB, directivity of 17.96 dBi, and |S11|of -18.85 dB. Its impedance bandwidth extends from 9.69 to 10.20 GHz, with a beam width of 10 degree and corresponding radiation efficiency is 86.17% at 10 GHz. The simulation and experimental results demonstrate excellent agreement, validating the antenna's performance for car-speed detection and monitoring radar systems. The results show that the designed patch array antenna is suitable for automotive radar applications, offering impressive accuracy and reliability.
On the applicability of some existing tropospheric scintillation prediction models for Ikeja and Abuja, Nigeria Adeyemo, Zachaeus Kayode; Yusuf, Ridwan Olalekan; Lasisi, Hammed Oyebamiji; Ojo, Samson Iyanda; Omowaiye, Rebecca Olufunmilayoa; Adedeji, Adebukola Ayoade
International Journal of Electrical and Computer Engineering (IJECE) Vol 12, No 5: October 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v12i5.pp5084-5092

Abstract

Tropospheric scintillation which causes rapid fluctuation of signal due to the turbulence in the atmosphere is of significance in satellite link budget design. Existing models that predict the intensity of scintillation such as Karasawa, International Telecommunication Union Radiocommunication (ITU-R) Sector, Otung, Van de Kamp and Ortgies are not appropriate for predicting scintillation intensity (SI) in Nigeria due to localization of the models to particular regions. The monthly average air temperature and relative humidity for Ikeja and Abuja, Nigeria, retrieved from the Nigerian Meteorological Centre data bank were used for the investigation. An elevation angle of 5° was used as look angle, antenna diameter of 0.3 m, 40 GHz and 45 GHz frequencies were considered in this study. The existing scintillation model values were then compared with the measured values for the two locations to determine the best performance model. The SI results at 40 GHz and 45 GHz were obtained for each of the existing models. It could be deduced from the results obtained that orgies model values were the most closet to the measured values. Therefore, Orgies-N model was the most appropriate for SI prediction in Ikeja and Abuja.
Co-Authors Adedeji, Adebukola Ayoade Ogungbayi, Peter Ropo Ojo, Samson Iyanda Oluwaleke, Afolabi Abimbola Omowaiye, Rebecca Olufunmilayoa Yusuf, Ridwan Olalekan Zachaeus Kayode Adeyemo