Zeboudj, Mohamed El AmineDjafri, Kahina2023-09-122023-09-122021https://dspace.univ-boumerdes.dz/handle/123456789/1200440 p.In this work, a reduced size tri-band monopole antenna has been designed, fabricated and tested. This is achieved by using a new geometrical patch based on two interconnected concentric octagonal rings. In order to tune independently the resonant frequencies, the outer ring has been attached to eight octagonal patches. The final antenna has a compact size ( 20 × 25.5 × 1.63 mm3), planar, simple design and low cost to be manufactured. Moreover, the proposed antenna operates in three useful bands covering the 2.4-GHz WLAN, 3.5-GHz WiMAXenCompact Triple-Band AntennaWLAN /WIMAX applicationsThesis