R. Talab, M., S. Alatallah, F. and A. Ahmed, A. 2021. Design of Microstrip Patch Antenna for GSM Applications and Study the Effect of Substrate Thickness on the Bandwidth. Rafidain Journal of Science. 30, 2 (Jun. 2021), 42–52. DOI:https://doi.org/10.33899/rjs.2021.168345.