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This paper presents the U-shaped defected ground structure (DGS) which is incorporated into the groundplane of array antenna to reduce the coupling between antenna elements. The array antenna is constructed of two layers of flame resistant (FR) 4 epoxy dielectric substrate with the thickness of each layer of 1.6mm. The U-shaped DGS is placed at the bottom side of second layer between two elements...
In this paper, the square spiral resonator (SR) as a metamaterial planar-antenna with electromagnetically coupled (EMC) feed is proposed. The proposed antenna will be operated at the frequency range of 2.4–2.5 GHz. To define the dimensional parametrics of the proposed antenna such as the spiral turn number (N), strip width (w), and gap width (s), it is simulated. The highest gain obtained is −0.5...
Spiral resonator (SR) structure is used in many microstrip antenna design due to its unique properties, such as negative permeability value as an artificial magnetic inclusion. This paper present the formulation of the radiation pattern of the microstrip antenna with single patch SR shaped structure using linear array model of n nonisotropic similar point sources. The linear array is assumed by modeling...
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