El-Shaarawy, H. B., B. Ouagague, F. Coccetti, R. Plana, M. E. Said, and E. A. Hashish,
"Mimiaturization d’un filter à résonateur en anneau en utilisant de stubs replies et des ‹‹ DGS ›› circulaires ",
16èmes Journées Nationales Microondes (JNM 2009), Grenoble, France, 2009.
El-Shaarawy, H. B., F. Coccetti, R. Plana, E. M. Said, and E. A. Hashish,
"Miniaturized extended-stopband microstrip ring resonator bandpass filter using uniplanar compact photonic bandgap (UC-PBG) structures",
8th Internat. Conf. Applied Inform.Comm. (AIC’2008), Rhodes, Greece, 20 August, 2008.