@article {66768,
	title = {Resonant frequency of tunable microstrip ring antenna printed on isotropic or uniaxially anisotropic substrate},
	journal = {Advanced ElectromagneticsAdvanced Electromagnetics},
	volume = {2},
	year = {2013},
	month = {2013},
	pages = {6-9},
	isbn = {2119-0275},
	author = {BEDRA, Sami and BENKOUDA, Siham and Amir, Mounir and FORTAKI, Tarek}
}
