Dr. Faleh Mahdi Musa, in cooperation with the master's student, Atyaf Hamid Muhammad, published a joint scientific research in a reputable international journal that includes the design of a circular electromagnetic polarization chip antenna with two opposite rotations using a special feeding network for fifth generation communications purposes.
The international journal (Applied Sciences), one of the journals affiliated with the international publishing house (MDPI) and classified within the following containers:Clarivate and with an impact factor of (2.5) Scopus (CiteScore=5.3) in the second quarter Q2 entitled A Circularly Polarized Microstrip Antenna with Dual Circular Polarization Using a 90° Hybrid Coupler and Proximity Coupled Feeding for LTE 43 5G Applications.
A Circularly Polarized Microstrip Antenna with Dual Circular Polarization Using 90° Hybrid Coupler and Proximity Coupled Feeding for LTE43 5G Applications.
 

The research includes a new antenna design for The ability to produce circular electromagnetic radiation rotating in two opposite directions to ensure the achievement of circular polarization diversity in wireless information transmission. The most important feature of this research is the selection of the appropriate antenna feed network through which this dual polarization was obtained. Despite the difficulty of obtaining circular polarization, the feed network led to obtaining this dual polarization after redesigning it and deriving its mathematical model. The theoretical and practical research results showed the frequency range within which the antenna operates and was within the middle frequencies of the fifth generation. The results also showed excellent radiation properties compared to previously designed antennas